feat: escalate brain search to web when facts cannot confirm (#17)

* docs: delete agent-cost; rename kb-search skill to brain.

bin/agents/cost does not exist. CI unittest now fails if a SKILL.md names a
missing bin/ path.

* test: gate SKILL.md bin/ paths; name the brain skill brain.

Follow-up to the agent-cost delete: unittest fails if a skill names a missing
tool. Frontmatter name is brain, not kb-search.

.github/workflows/ci.yml

@@ -19,6 +19,10 @@ jobs:
         with:
           fetch-depth: 0
 
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
       - name: Install uv
         uses: astral-sh/setup-uv@v6
         with:
@@ -32,16 +36,20 @@ jobs:
           bash -n bin/db/psql-yq
           bash -n bin/db/ssh-tunnel
           bash -n bin/docker-entrypoint
+          bash -n bin/kb/search
 
       - name: Python unit tests (offline, vendored tools)
         run: |
           uv run python -m unittest discover -s bin/tools -t .
 
-      - name: Go tests (server + watch packages)
+      - name: Go tests (root module, no ladybug cgo)
         run: |
           go vet ./...
           go test ./... -count=1
 
+      - name: brain ranking tests (no cgo / no ladybug)
+        run: go test ./internal/brain/rank -count=1
+
       - name: facts/audit self (lexicon consistency, no network)
         run: |
           ./bin/facts/audit self 2>/dev/null || echo "audit: not yet implemented; gate skipped"

.gitignore

@@ -10,3 +10,4 @@ __pycache__/
 .env
 .secrets/
 lib-ladybug/
+go.work.local

AGENTS.md

@@ -24,7 +24,7 @@ Read first: [PLAN](PLAN.md) → [docs](docs/).
 2. **Read-only data sources.** Ladybug `var/kb.lbug` and Postgres are opened
    read-only for queries. Index rebuilds write to `var/` (gitignored).
 3. **PII.** `brain-test`, `cs_brain` client data is never read or quoted.
-4. **No main pushes.** Feature branches + PR via `gh`; CI must be green.
+4. **No main pushes.** Feature branches + GitHub PR (`gh`); CI (Actions) must be green. Work board: [Gitea issues](https://git.produktor.io/eSlider/2dph/issues).
 5. **TDD.** Failing test before tool code. Unit tests run offline against
    fixtures; network/db calls are wrapped.
 6. **docs reflect behaviour.** Any change updates `docs/` + `PLAN.md` status.
@@ -35,11 +35,16 @@ Read first: [PLAN](PLAN.md) → [docs](docs/).
 PLAN.md       decisions + execution + open questions
 docs/         published docs
 skills/       in-project agent skills (vendored, no external links)
-bin/          self-describing tools bin/{subject}/{method} (shebang)
+bin/          self-describing tools bin/{subject}/{method}.go (shebang)
-bin/serve.go  async Go HTTP server entry (self-executing go run shebang)
+bin/brain/    search.go serve.go index.go get.go stats.go eval.go watch.go
-bin/watch/    corpus watcher Go package (mtimes, no inotify deps)
+bin/chats/    sync.go import.go facts.go apply.go; libs in internal/chats
-bin/server/   async Go HTTP server (goroutines, bounded worker pool)
+bin/mail/     sync.go import.go (index_mail → brain/index.go)
-bin/mail/     mail pipeline: sync (Go), import (md), index_mail (rebuild)
+bin/markdown/ import.go (mistune leafs)
+bin/postgres/ query.go (read-only YAML)
+bin/git/      import.go (go-git history; Python shim execs it)
+bin/web/      search.go (SearXNG; Python shim execs it)
+internal/     shared Go (brain/rank is cgo-free; chats parsers; gitlog; websearch)
+bin/watch/    corpus watcher (used by bin/brain/watch.go)
 bin/tools/    vendored python libs behind bin/* (kblib, yamlout, websearch)
 bin/docker-entrypoint  container entrypoint (brain index|search|serve|watch)
 compose.yaml  docker composition (root level, not docker/)
@@ -52,8 +57,9 @@ var/          kb.lbug, var/mail/*, caches (gitignored)
 
 ```bash
 bin/mail/sync.go --source onlyoffice,gmail --workers 8 --out var/mail   # raw message.json + attachments
-bin/mail/import --from-raw var/mail                                     # message.json → message.md (convert only)
+bin/mail/sync.go --source gmail --query 'from:example.com' --out var/mail  # Gmail search (default in:inbox)
-bin/mail/index_mail                                                     # rebuild brain incl. all mail (fresh DB)
+bin/mail/import.go --from-raw var/mail                                  # message.json → message.md (convert only)
+bin/brain/index.go --rebuild                                            # rebuild brain incl. all mail (fresh DB)
 ```
 
 - `sync` (Go) downloads messages + attachments; Gmail uses paginated list +
@@ -62,7 +68,7 @@ bin/mail/index_mail                                                     # rebuil
   `pdftotext -layout` fast path (~15ms); textless/scanned PDFs fall back to
   docling (isolated subprocess — its native onnx can segfault the parent).
   Conversion never touches the brain DB (crash safety).
-- `index_mail` always rebuilds from scratch (repo corpus + mail). Ladybug
+- `index_mail` is a deprecation shim for `bin/brain/index.go --rebuild`. Ladybug
   corrupts its WAL when brand-new leafs are bulk-inserted while FTS/vector
   indexes exist; a fresh DB with indexes created last is the only safe path.
   Keep conversion + indexing separate so a conversion crash can't leave the
@@ -73,7 +79,14 @@ bin/mail/index_mail                                                     # rebuil
 ```bash
 bin/facts/audit ["self"|"facts"|"info"|"stale"]   # 2-source + staleness gate
 bin/facts/crm [--dry-run]                         # proof person↔company/company↔project (ooCRM × corpus SoT)
-bin/kb/search "query" [--hop N] [--repo X]        # deduction search → YAML
+bin/kb/search "query" [--repo X]                  # deprecated wrapper → bin/brain/search.go
+bin/brain/search.go "query" [--root facts|info]   # deduction search → YAML
+bin/brain/search.go "query" --no-web              # local graph only
+bin/brain/get.go <id> [--body]
+bin/markdown/import.go [dir]                      # mistune leaves → YAML
+bin/git/import.go [REPO] [--json] [--limit N]     # go-git history → commit leafs
+bin/web/search.go "query" [--json]                # SearXNG; throttled ≠ absence
+bin/postgres/query.go --profile onlyoffice -c 'SELECT 1'
 bin/md/tables                                     # what the graph holds → YAML
 bin/brain/deduce "question"                       # thinking wrapper
 ```

PLAN.md

@@ -26,10 +26,10 @@ detective method: **a fact needs ≥2 independent sources or it is
 |---|----------|--------|
 | D1 | RAG corpus | ops stack (chat, onlyoffice, gitea/NPM, searchxng, observability, ai-bot, mcp-servers, `~/.ssh/config`) + portfolio. Exclude `office.dev` + jobs/applications. |
 | D2 | skill merging | integrate skills **in this project** `skills/`; skip gitea / brain-dependent skills. |
-| D3 | web search | import `web-search`, retire local `searxng-ops`. Vendored here, no remote link. |
+| D3 | web search | Go client `bin/web/search.go` (`internal/websearch`). SearXNG URL is config (`BRAIN_SEARCH_URL`). Optional Compose profile `searxng` (sanitized settings). Do not run a second copy on a host that already has one. Empty/`throttled` ≠ “nothing exists”. |
 | D4 | embeddings | **model2vec** `minishlab/potion-multilingual-128M` instead of embeddinggemma. |
 | D5 | parser | **mistune** for MD → leaf extraction (duckdb-md documented as future optional SQL/export layer, not v1). |
-| D6 | graph engine | **LadybugDB** (Kuzu successor, MIT, embedded, native FTS+vector+Cypher). Python binding for `bin/*`; Go shebang for golang tools. |
+| D6 | graph engine | **LadybugDB**. Go is the service (`bin/brain/search.go`, `bin/brain/serve.go` in-process, `internal/brain`); Python remains for index/write until the Go write path is safe. |
 | D7 | db access | `db-yaml`/`psql-yq`-style, read-only, YAML out. OnlyOffice Postgres via SSH tunnel (`127.0.0.1:5433`). |
 | D8 | evidence | detective method: ≥2 independent sources or `(not confirmed)`. Auto-pair docker ps × compose × ssh-config × docs. |
 | D9 | facts/goal model | Who / What / How / Where / When + evidence + confidence on every edge. |
@@ -37,9 +37,12 @@ detective method: **a fact needs ≥2 independent sources or it is
 | D11 | strong/weak | `root` column: `facts` (strong) vs `info` (weak). Answer is `confirmed` only from facts root. |
 | D12 | transactional | facts and info split by root but **written in the same Ladybug transaction (ACID)** on every write. |
 | D13 | portfolio | start graph `(Person:eslider)-[:HAS]->(Portfolio)`, associate other natural/juristic persons later. |
-| D14 | tooling style | `bin/{subject}/{method}` self-describing: shebang line 1, usage comment from line 2. Go shebang: `///usr/bin/env go run "$0" "$@"; exit`. |
+| D14 | tooling style | `bin/{subject}/{method}.go` shebang (e.g. `bin/brain/search.go`). Shared code in `internal/`. One root `go.mod` + `go.work`. No `bin/*/main.go`, no nested modules. |
-| D15 | repo | GitHub `eSlider/2dph`, public (like sibling repos), push/commit via `gh`, TDD + commit every change, CI/CD. |
+| D15 | repo | Gitea [`eSlider/2dph`](https://git.produktor.io/eSlider/2dph) is origin + [issues](https://git.produktor.io/eSlider/2dph/issues). GitHub `eSlider/2dph` is the public clone (PRs + Actions CI). No direct `main` pushes. TDD → PR → CI green → merge. |
 | D16 | contradictions | ≥2 yes vs ≥2 no → unrelated sources conflict → hypothesis → `(not confirmed)`. Resolution (authority, staleness adjudication) = **v2**, tracked as open question. |
+| D17 | assertion gate | Fact-check every *claim* (facts → info → live → web), not every edit. `bin/brain/search.go` adds a `web` block when there is no facts hit (`throttled`/`skipped`/`refused` ≠ absence). `--root` and `--no-web` stay local. Missing graph ≠ “does not exist”. |
+| D18 | reasoner | Pluggable OpenAI-compatible URL. RAM: Qwen3.5-9B. Quality: Bonsai-27B or Qwen3.6-27B. No official Qwen3.6-9B. |
+| D19 | git history | [go-git](https://github.com/go-git/go-git) via `bin/git/import.go`. No subprocess of the git binary. Conversion prints commit leafs; brain write is `bin/brain/index.go`. |
 
 ## Architecture
 
@@ -47,16 +50,25 @@ detective method: **a fact needs ≥2 independent sources or it is
 2dph/
   PLAN.md / AGENTS.md
   docs/                     published docs (this conversation → docs/ as md)
-  skills/                   in-project skills (web-search, db-yaml, kb-search, agent-cost, diataxis-docs, …)
+  skills/                   in-project skills (web-search, db-yaml, brain, diataxis-docs)
   bin/
     facts/extract           auto-pair 2 sources → lexicon yaml + graph
     facts/audit             ["self"|"facts"|"info"|"stale"] 2-source + staleness gate
-    kb/index                build FTS + HNSW from corpus
+    kb/index                Python write path (called by bin/brain/index.go)
-    kb/search               deduction: facts → info → web-search; --hop N
+    brain/index.go          rebuild FTS + HNSW (incl. --with-mail)
-    kb/get  kb/stats  kb/eval
+    brain/get.go stats.go eval.go watch.go
-    md/import  md/select  md/tables  md/gaps     (mistune)
+    brain/search.go         deduction: facts → info → web-search
+    brain/serve.go          HTTP API in-process (internal/httpapi + internal/brain)
+    mail/import.go          JSON → markdown (no brain write)
+    markdown/import.go      mistune leaves
+    postgres/query.go       read-only YAML (wraps bin/db/psql-yq)
+    git/import.go           go-git history (no git binary; conversion only)
+    web/search.go           SearXNG client (throttled ≠ absence)
+    chats/sync.go import.go facts.go apply.go
+                            (libs in internal/chats; no chats index)
+    md/import               (deprecated; bin/markdown/import.go)
     brain/extract  brain/audit   brain/deduce    (thinking wrapper)
-    web/search               (vendored)
+    web/search               (deprecated shim → web/search.go)
     db/psql-yq               (vendored)
     ssh-tunnel               onlyoffice pg tunnel 5433
   var/kb.lbug               single embedded store (gitignored)
@@ -103,24 +115,26 @@ Common props on every node/edge: `root`, `confidence`, `evidence[]`, `how`,
 
 1. `bin/mail/sync.go` (Go, 8 workers) — paginated Gmail/OnlyOffice download.
    Gmail attachments key off `body.attachmentId`, not MIME `partId`.
-2. `bin/mail/import --from-raw` — message.json → message.md; PDFs via
+2. `bin/mail/import.go --from-raw` — message.json → message.md; PDFs via
    `pdftotext -layout` (~15ms) with docling subprocess fallback; ICS sidecars
    Latin-1→UTF-8 normalized.
-3. `bin/mail/index_mail` — fresh rebuild (repo corpus + mail) because ladybug
+3. `bin/brain/index.go --rebuild` — fresh rebuild (repo corpus + mail) because ladybug
    corrupts its WAL on bulk-insert into an already-indexed DB. Conversion and
-   indexing stay separate for crash safety.
+   indexing stay separate for crash safety. `bin/mail/index_mail` is a
+   deprecation shim.
 4. Result: 17,835 messages → 28,918 info leafs, FTS + HNSW healthy, searchable
-   via `bin/kb/search`.
+   via `bin/brain/search.go`.
 
 ## CI/CD pipeline (D15)
 
 `.github/workflows/ci.yml`:
 
-1. go vet + go test ./... (Go tools)
+1. go vet + go test ./... (root module; packages without ladybug cgo)
-2. python -m unittest discover + pytest (Py tools)
+2. `go test ./internal/brain/rank` (cgo-free ranking + flag parser)
-3. bin/facts/audit self  (lexicon internal consistency)
+3. python -m unittest discover -s bin/tools (includes published-docs SoT)
-4. bin/kb/eval            (recall@5 ≥ 0.95, gates index regressions)
+4. bin/facts/audit self  (lexicon internal consistency)
-5. md-docs build/lint if docs tooling arrives.
+5. bin/brain/eval.go       (recall@5 ≥ 0.95, gates index regressions)
+6. md-docs build/lint if docs tooling arrives.
 
 Feedback loop: every commit → PR → CI → green/gate → merge. Same discipline as
 `db/tech-poc`: contract first where there is an OpenAPI/message shape.
@@ -129,7 +143,7 @@ Feedback loop: every commit → PR → CI → green/gate → merge. Same discipl
 
 1. scaffold repo (:done after this file + AGENTS.md + .gitignore + ci)
 2. gh repo create eSlider/2dph --private + initial commit + CI
-3. vendored skill integration (web-search, db-yaml, kb-search, agent-cost, diataxis-docs) — no remote links
+3. vendored skill integration (web-search, db-yaml, brain, diataxis-docs) — no remote links
 4. .venv: ladybug + model2vec + mistune
 5. schema + tools with TDD (kb + md + facts + brain)
 6. ~/.config/brain config

README.md

@@ -30,9 +30,9 @@ graph TB
     subgraph dph["2dph tools"]
         EX["bin/facts/extract<br/>2-source pairing"]
         AU["bin/facts/audit<br/>confidence + staleness"]
-        IDX["bin/kb/index<br/>chunk + embed"]
+        IDX["bin/brain/index.go<br/>chunk + embed"]
-        MD["bin/md/import<br/>mistune leaves"]
+        MD["bin/markdown/import.go<br/>mistune leaves"]
-        SR["bin/kb/search<br/>deduction + --hop"]
+        SR["bin/brain/search.go<br/>deduction"]
     end
 
     subgraph store["Ladybug var/kb.lbug"]
@@ -85,21 +85,41 @@ fact; conflicting sources or a single source → `hypothesis` → `(not confirme
 ## Deduction search
 
 ```bash
-bin/kb/search "Matrix federation over HTTPS"      # facts → info → web-search
+bin/brain/search.go "Matrix federation over HTTPS"   # facts → info → web
-bin/kb/search "what runs on arc-2" --hop 1        # walk graph edges
+bin/brain/search.go "onlyoffice postgres" --root facts
-bin/kb/search "where is cs-lexicon" --json | yq '.'  # YAML by default
+bin/brain/search.go "where is cs-lexicon" --json | yq '.'
-bin/kb/get <id> --body                            # full chunk on demand
+bin/brain/search.go "upstream flag" --no-web         # local graph only
-bin/kb/stats                                      # index health
+bin/brain/get.go <id> --body                         # full chunk on demand
-bin/kb/eval                                       # recall@5 gate
+bin/brain/stats.go                                   # index health
+bin/brain/eval.go                                    # recall@5 gate
+```
+
+`--hop` is not implemented (needs File/FROM_FILE edges); the flag errors instead of walking. `bin/kb/search` is a deprecated wrapper around `bin/brain/search.go`.
+
+Git history is read with [go-git](https://github.com/go-git/go-git) (no git binary):
+
+```bash
+bin/git/import.go --json --limit 100              # commit leafs for this repo
+bin/git/import.go --root "$PROJECTS_ROOT" --json  # one pass per .git under root
+```
+
+Conversion only. Graph write (`File-[:HAS_VERSION]->Commit-[:AUTHORED]->Person`) stays with `bin/brain/index.go`.
+
+Web search (second independent source) goes through SearXNG. Empty results mean **throttled**, not “nothing exists”:
+
+```bash
+bin/web/search.go "LadybugDB vector index" --json
+# Optional local instance (skip if BRAIN_SEARCH_URL already points at one):
+# SEARXNG_SECRET=$(openssl rand -hex 32) docker compose --profile searxng up -d
 ```
 
 Mail is a first-class corpus (retrievable through the same search):
 
 ```bash
 bin/mail/sync.go --source onlyoffice,gmail --workers 8 --out var/mail  # raw sync (Go)
-bin/mail/import --from-raw var/mail                                     # JSON → markdown
+bin/mail/import.go --from-raw var/mail                                  # JSON → markdown
-bin/mail/index_mail                                                     # rebuild brain incl. mail
+bin/brain/index.go --rebuild                                            # rebuild brain (incl. mail)
-bin/kb/search "Mietwagen Nürnberg invoice"                              # now answers from mail
+bin/brain/search.go "invoice from last week"                            # same search over mail leafs
 ```
 
 ## Storage
@@ -109,7 +129,7 @@ bin/kb/search "Mietwagen Nürnberg invoice"                              # now a
   readers. **Never `DROP INDEX` FTS/VECTOR** on Ladybug 0.19: DROP leaves
   ghost catalog tables (`_0_Leaf_vec_UPPER`) so recreate fails while
   `SHOW_INDEXES` omits HNSW. Fresh indexes = delete `var/kb.lbug` +
-  `bin/kb/index --rebuild`. Use `ensure_indexes()` after upserts.
+  `bin/brain/index.go --rebuild`. Use `ensure_indexes()` after upserts.
 - **model2vec** — `potion-multilingual-128M` static embeddings (256-dim),
   CPU-fast, deterministic, no Ollama runtime dependency.
 - facts and info split semantically by `root` column but written inside the
@@ -117,10 +137,10 @@ bin/kb/search "Mietwagen Nürnberg invoice"                              # now a
 
 ## Tooling conventions
 
-`bin/{subject}/{method}` — self-describing: shebang on line 1, usage comment
+`bin/{subject}/{method}.go` — self-describing: shebang on line 1, usage comment
-from line 2. bash + python primary; golang via the Go shebang when a compiled
+from line 2. Shared code in `internal/`. YAML default output, `--json` for
-helper is right. YAML default output, `--json` for machines. Everything that
+machines. Tests gate every commit. HTTP: `bin/brain/serve.go` calls
-touches network/db is read-only, throttled, cached. Tests gate every commit.
+`internal/brain` in-process (`/health` `/search` `/get` `/stats` `/audit` `/ingest`).
 
 ## Development
 
@@ -136,7 +156,7 @@ Docker (optional, cached model + var volumes):
 ```bash
 docker compose run --rm brain index            # (re)index corpus
 docker compose run --rm brain search "query"   # one-shot query
-docker compose run --rm brain serve            # async Go HTTP server
+docker compose run --rm brain serve            # bin/brain/serve.go
 docker compose up brain-watch                  # auto re-index on change
 ```
 
@@ -148,4 +168,7 @@ docker compose up brain-watch                  # auto re-index on change
   skills (`web-search`, `db-yaml`, …) that 2dph integrates
 - detective method — the two-source method
 
-See [PLAN.md](PLAN.md) for decisions, execution status, and v2 open questions.
+Work board (issues): [git.produktor.io/eSlider/2dph/issues](https://git.produktor.io/eSlider/2dph/issues).
+PRs and CI: GitHub [`eSlider/2dph`](https://github.com/eSlider/2dph).
+
+See [PLAN.md](PLAN.md) for decisions, execution status, and v2 open questions.

bin/brain/doc.go

@@ -0,0 +1,3 @@
+// Commands in this directory are shebang mains (search.go, serve.go, index.go,
+// get.go, stats.go, eval.go, watch.go), each behind an exclusive build tag.
+package main

bin/brain/eval.go

@@ -0,0 +1,20 @@
+//usr/bin/env go run -tags=brain_eval "$0" "$@"; exit
+//go:build brain_eval
+//
+// bin/brain/eval.go - recall@5 gate.
+//
+//	./bin/brain/eval.go
+//	./bin/brain/eval.go --json
+//
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/cmdbin"
+)
+
+func main() {
+	os.Exit(cmdbin.ExecFile("bin/kb/eval", os.Args[1:]))
+}

bin/brain/get.go

@@ -0,0 +1,20 @@
+//usr/bin/env go run -tags=brain_get "$0" "$@"; exit
+//go:build brain_get
+//
+// bin/brain/get.go - read one leaf by id.
+//
+//	./bin/brain/get.go <id>
+//	./bin/brain/get.go <id> --body
+//
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/cmdbin"
+)
+
+func main() {
+	os.Exit(cmdbin.ExecFile("bin/kb/get", os.Args[1:]))
+}

bin/brain/index.go

@@ -0,0 +1,24 @@
+//usr/bin/env go run -tags=brain_index "$0" "$@"; exit
+//go:build brain_index
+//
+// bin/brain/index.go - rebuild the Ladybug graph (Python write path).
+//
+//	./bin/brain/index.go --rebuild
+//	./bin/brain/index.go --rebuild --with-mail
+//	./bin/brain/index.go --dry-run --with-mail
+//
+// v1 write is always a rebuild when mail is included (live FTS/HNSW + bulk
+// insert corrupts Ladybug 0.19 WAL). `add` is v2.
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/cmdbin"
+)
+
+func main() {
+	args := append([]string{"--with-mail"}, os.Args[1:]...)
+	os.Exit(cmdbin.ExecFile("bin/kb/index", args))
+}

bin/brain/search.go

@@ -0,0 +1,23 @@
+//usr/bin/env go run -tags=system_ladybug "$0" "$@"; exit
+//go:build cgo && system_ladybug
+//
+// bin/brain/search.go - deduction search over the 2dph brain.
+//
+//	./bin/brain/search.go "query" [--root facts|info] [--repo P] [-n N] [--json] [--no-web]
+//	./bin/brain/search.go serve [port]
+//	./bin/brain/search.go --list-model
+//
+// Needs CGO + libladybug (CGO_CFLAGS/CGO_LDFLAGS). Prefer the wrapper
+// bin/kb/search which sets those and builds a binary for the embed daemon.
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/brain"
+)
+
+func main() {
+	os.Exit(brain.Main(os.Args[1:]))
+}

bin/brain/serve.go

@@ -0,0 +1,31 @@
+//usr/bin/env go run -tags=brain_serve,system_ladybug "$0" "$@"; exit
+//go:build brain_serve && cgo && system_ladybug
+//
+// bin/brain/serve.go - HTTP API (in-process ladybug search).
+//
+//	KB_ROOT=/path/to/2dph ./bin/brain/serve.go
+//	KB_WORKERS=4 KB_PORT=8630 ./bin/brain/serve.go
+//
+// Needs CGO + libladybug (same as bin/brain/search.go).
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"log"
+	"os"
+
+	"github.com/eSlider/2dph/internal/brain"
+	"github.com/eSlider/2dph/internal/httpapi"
+)
+
+func main() {
+	if os.Getenv("KB_ROOT") == "" {
+		if wd, err := os.Getwd(); err == nil {
+			os.Setenv("KB_ROOT", wd)
+		}
+	}
+	if err := brain.Ready(); err != nil {
+		log.Fatal(err)
+	}
+	httpapi.Run(brain.HTTP{})
+}

bin/brain/serve_exec.go

@@ -0,0 +1,20 @@
+//go:build brain_serve && !system_ladybug
+//
+// Fallback serve when ladybug cgo is not in the build (CI / tags=brain_serve).
+// Production shebang is serve.go (in-process).
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/httpapi"
+)
+
+func main() {
+	if os.Getenv("KB_ROOT") == "" {
+		if wd, err := os.Getwd(); err == nil {
+			os.Setenv("KB_ROOT", wd)
+		}
+	}
+	httpapi.Run(nil)
+}

bin/brain/stats.go

@@ -0,0 +1,20 @@
+//usr/bin/env go run -tags=brain_stats "$0" "$@"; exit
+//go:build brain_stats
+//
+// bin/brain/stats.go - index health.
+//
+//	./bin/brain/stats.go
+//	./bin/brain/stats.go --json
+//
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/cmdbin"
+)
+
+func main() {
+	os.Exit(cmdbin.ExecFile("bin/kb/stats", os.Args[1:]))
+}

bin/brain/watch.go

@@ -0,0 +1,20 @@
+//usr/bin/env go run -tags=brain_watch "$0" "$@"; exit
+//go:build brain_watch
+//
+// bin/brain/watch.go - re-index when corpus files change.
+//
+//	./bin/brain/watch.go [dir...]
+//	KB_WATCH_INTERVAL=15 ./bin/brain/watch.go
+//
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/bin/watch"
+)
+
+func main() {
+	watch.Run(os.Args[1:])
+}

bin/chats/apply.go

@@ -0,0 +1,19 @@
+//usr/bin/env go run -tags=chats_apply "$0" "$@"; exit
+//go:build chats_apply
+//
+// bin/chats/apply.go - push extracted chat facts to OnlyOffice CRM.
+//
+//	./bin/chats/apply.go [--dry-run]
+//
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/chats"
+)
+
+func main() {
+	os.Exit(chats.RunApply(os.Args[1:]))
+}

bin/chats/doc.go

@@ -0,0 +1,4 @@
+// Commands in this directory are shebang mains (sync.go, import.go, facts.go,
+// apply.go), each behind an exclusive build tag so `go build ./bin/chats`
+// does not see two mains. Shared code lives in internal/chats.
+package main

bin/chats/facts.go

@@ -0,0 +1,20 @@
+//usr/bin/env go run -tags=chats_facts "$0" "$@"; exit
+//go:build chats_facts
+//
+// bin/chats/facts.go - extract phone/email/linkedin facts from JSONL.
+//
+//	./bin/chats/facts.go
+//
+// Writes var/chats/facts/. Does not index the brain.
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/chats"
+)
+
+func main() {
+	os.Exit(chats.RunFacts(os.Args[1:]))
+}

bin/chats/go.mod

@@ -1,3 +0,0 @@
-module github.com/eSlider/2dph/bin/chats
-
-go 1.25.0

bin/chats/import.go

@@ -0,0 +1,20 @@
+//usr/bin/env go run -tags=chats_import "$0" "$@"; exit
+//go:build chats_import
+//
+// bin/chats/import.go - JSONL → markdown under var/chats/md/.
+//
+//	./bin/chats/import.go
+//
+// Conversion only. Brain ingest is bin/brain/index.go, not this command.
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/chats"
+)
+
+func main() {
+	os.Exit(chats.RunImport(os.Args[1:]))
+}

bin/chats/index_cmd.go

@@ -1,56 +0,0 @@
-package main
-
-import (
-	"bytes"
-	"flag"
-	"fmt"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"strings"
-)
-
-func runIndex(args []string) int {
-	fs := flag.NewFlagSet("chats index", flag.ContinueOnError)
-	help := fs.Bool("help", false, "")
-	fs.SetOutput(os.Stderr)
-	if err := fs.Parse(args); err != nil {
-		return 2
-	}
-	if *help {
-		fmt.Fprintln(os.Stderr, "usage: chats index")
-		return 0
-	}
-
-	root := repoRoot()
-	mdDir := filepath.Join(chatsDir(), "md")
-
-	_, err := os.Stat(mdDir)
-	if os.IsNotExist(err) {
-		fmt.Fprintf(os.Stderr, "chats index: no chat markdown at %s; run 'chats import' first\n", mdDir)
-		return 1
-	}
-
-	indexScript := filepath.Join(root, "bin", "kb", "index")
-	if _, err := os.Stat(indexScript); os.IsNotExist(err) {
-		fmt.Fprintf(os.Stderr, "chats index: %s not found\n", indexScript)
-		return 1
-	}
-
-	cmd := exec.Command(indexScript, "--corpus", mdDir)
-	var outBuf, errBuf bytes.Buffer
-	cmd.Stdout = &outBuf
-	cmd.Stderr = &errBuf
-	cmd.Dir = root
-
-	if err := cmd.Run(); err != nil {
-		fmt.Fprintf(os.Stderr, "chats index: %v\n%s", err, errBuf.String())
-		return 1
-	}
-	result := strings.TrimSpace(outBuf.String())
-	if result == "" {
-		result = strings.TrimSpace(errBuf.String())
-	}
-	fmt.Printf("chats index: %s\n", result)
-	return 0
-}

bin/chats/linkedin.go

@@ -1,356 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"context"
-	"encoding/json"
-	"fmt"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"strings"
-	"time"
-)
-
-type LinkedInMCPSource struct {
-	userDataDir string
-	limit       int
-}
-
-type lnInboxItem struct {
-	ThreadID         string `json:"thread_id"`
-	Participants     string `json:"participants"`
-	LastMessage      string `json:"last_message"`
-	LastMessageDate  string `json:"last_message_date"`
-	Unread           bool   `json:"unread"`
-}
-
-type lnInboxEnvelope struct {
-	Results    []lnInboxItem `json:"results"`
-	HasMore    bool          `json:"hasMore"`
-}
-
-type lnMessage struct {
-	From       string `json:"from"`
-	Date       string `json:"date"`
-	Text       string `json:"text"`
-}
-
-type lnConvEnvelope struct {
-	Results    []lnMessage `json:"results"`
-	HasMore    bool        `json:"hasMore"`
-	TotalCount int         `json:"total_count"`
-}
-
-func NewLinkedInMCPSource(userDataDir string) *LinkedInMCPSource {
-	return &LinkedInMCPSource{userDataDir: userDataDir}
-}
-
-func (s *LinkedInMCPSource) Name() string { return "linkedin" }
-
-func (s *LinkedInMCPSource) Sync(ctx context.Context, outDir string, limit int) error {
-	if limit > 0 {
-		s.limit = limit
-	}
-
-	client, err := newLinkedInMCP(ctx, s.userDataDir)
-	if err != nil {
-		return fmt.Errorf("linkedin mcp: %w", err)
-	}
-	defer client.Close()
-
-	inbox, err := client.GetInbox(ctx, 50)
-	if err != nil {
-		return fmt.Errorf("get_inbox: %w", err)
-	}
-	if len(inbox) == 0 {
-		fmt.Println("chats: no LinkedIn conversations found")
-		return nil
-	}
-
-	fmt.Printf("chats: found %d LinkedIn conversations\n", len(inbox))
-
-	for _, conv := range inbox {
-		convID := sanitizeDir(conv.ThreadID)
-		if convID == "" {
-			convID = fmt.Sprintf("conv_%d", time.Now().UnixNano())
-		}
-
-		parts := strings.SplitN(conv.Participants, ",", 2)
-		chatName := strings.TrimSpace(parts[0])
-		if chatName == "" {
-			chatName = convID
-		}
-
-		chatDir := filepath.Join(outDir, "linkedin", convID)
-		if err := os.MkdirAll(chatDir, 0755); err != nil {
-			fmt.Fprintf(os.Stderr, "chats: mkdir %s: %v\n", chatDir, err)
-			continue
-		}
-
-		msgLimit := 100
-		if s.limit > 0 {
-			msgLimit = s.limit
-		}
-
-		msgs, err := client.GetConversation(ctx, "", conv.ThreadID, msgLimit)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "chats: get_conversation %s: %v\n", convID, err)
-			continue
-		}
-
-		jsonlPath := filepath.Join(chatDir, "messages.jsonl")
-		f, err := os.Create(jsonlPath)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "chats: create %s: %v\n", jsonlPath, err)
-			continue
-		}
-
-		enc := json.NewEncoder(f)
-		written := 0
-		for i, m := range msgs {
-			text := m.Text
-			if text == "" {
-				continue
-			}
-
-			ts := m.Date
-			if t, err := time.Parse("2006-01-02T15:04:05Z07:00", m.Date); err == nil {
-				ts = t.UTC().Format(time.RFC3339)
-			} else if t, err := time.Parse(time.RFC3339, m.Date); err == nil {
-				ts = t.UTC().Format(time.RFC3339)
-			}
-
-			chatMsg := Message{
-				ID:        fmt.Sprintf("li_%s_%d", convID, i),
-				Timestamp: ts,
-				From:      m.From,
-				Text:      text,
-				Platform:  "linkedin",
-			}
-			if err := enc.Encode(chatMsg); err != nil {
-				fmt.Fprintf(os.Stderr, "chats: encode: %v\n", err)
-				continue
-			}
-			written++
-		}
-		f.Close()
-
-		fmt.Printf("chats: synced %s (%s) — %d messages\n", chatName, convID, written)
-	}
-
-	return nil
-}
-
-type linkedInMCPClient struct {
-	cmd    *exec.Cmd
-	stdin  *bufio.Writer
-	stdout *bufio.Scanner
-	msgID  int
-}
-
-func newLinkedInMCP(ctx context.Context, userDataDir string) (*linkedInMCPClient, error) {
-	args := []string{
-		"mcp-server-linkedin@latest",
-		"--user-data-dir", userDataDir,
-		"--no-auto-import",
-		"--transport", "stdio",
-		"--login-timeout", "10",
-		"--browser-wait", "1",
-		"--browser-idle-timeout", "10",
-		"--log-level", "ERROR",
-	}
-
-	cmd := exec.CommandContext(ctx, "uvx", args...)
-	cmd.Env = os.Environ()
-
-	stdin, err := cmd.StdinPipe()
-	if err != nil {
-		return nil, fmt.Errorf("stdin pipe: %w", err)
-	}
-	stdout, err := cmd.StdoutPipe()
-	if err != nil {
-		return nil, fmt.Errorf("stdout pipe: %w", err)
-	}
-	cmd.Stderr = os.Stderr
-
-	if err := cmd.Start(); err != nil {
-		return nil, fmt.Errorf("start: %w", err)
-	}
-
-	c := &linkedInMCPClient{
-		cmd:    cmd,
-		stdin:  bufio.NewWriter(stdin),
-		stdout: bufio.NewScanner(stdout),
-		msgID:  0,
-	}
-	c.stdout.Buffer(make([]byte, 1<<20), 1<<20)
-
-	if err := c.initialize(ctx); err != nil {
-		c.Close()
-		return nil, fmt.Errorf("init: %w", err)
-	}
-	return c, nil
-}
-
-func (c *linkedInMCPClient) nextID() int {
-	c.msgID++
-	return c.msgID
-}
-
-func (c *linkedInMCPClient) initialize(ctx context.Context) error {
-	params := map[string]interface{}{
-		"protocolVersion": "2024-11-05",
-		"capabilities":    map[string]interface{}{},
-		"clientInfo": map[string]string{
-			"name":    "chats-sync",
-			"version": "0.1.0",
-		},
-	}
-	_, err := c.send(ctx, "initialize", params)
-	return err
-}
-
-func (c *linkedInMCPClient) send(ctx context.Context, method string, params interface{}) (json.RawMessage, error) {
-	id := c.nextID()
-	req := map[string]interface{}{
-		"jsonrpc": "2.0",
-		"id":      id,
-		"method":  method,
-	}
-	if params != nil {
-		req["params"] = params
-	}
-	body, err := json.Marshal(req)
-	if err != nil {
-		return nil, fmt.Errorf("marshal: %w", err)
-	}
-
-	if _, err := c.stdin.Write(body); err != nil {
-		return nil, fmt.Errorf("write: %w", err)
-	}
-	if err := c.stdin.WriteByte('\n'); err != nil {
-		return nil, fmt.Errorf("newline: %w", err)
-	}
-	if err := c.stdin.Flush(); err != nil {
-		return nil, fmt.Errorf("flush: %w", err)
-	}
-
-	for c.stdout.Scan() {
-		line := c.stdout.Text()
-		if line == "" {
-			continue
-		}
-		var resp struct {
-			JSONRPC string          `json:"jsonrpc"`
-			ID      int             `json:"id"`
-			Result  json.RawMessage `json:"result,omitempty"`
-			Error   *struct {
-				Code    int    `json:"code"`
-				Message string `json:"message"`
-			} `json:"error,omitempty"`
-		}
-		if err := json.Unmarshal([]byte(line), &resp); err != nil {
-			return nil, fmt.Errorf("unmarshal: %w\nline: %s", err, line[:min(len(line), 500)])
-		}
-		if resp.Error != nil {
-			return nil, fmt.Errorf("rpc error %d: %s", resp.Error.Code, resp.Error.Message)
-		}
-		return resp.Result, nil
-	}
-	return nil, fmt.Errorf("no response: %w", c.stdout.Err())
-}
-
-func (c *linkedInMCPClient) GetInbox(ctx context.Context, limit int) ([]lnInboxItem, error) {
-	params := map[string]interface{}{
-		"limit": limit,
-	}
-	result, err := c.send(ctx, "tools/call", map[string]interface{}{
-		"name":      "get_inbox",
-		"arguments": params,
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	var toolRes struct {
-		Content []struct {
-			Type string `json:"type"`
-			Text string `json:"text"`
-		} `json:"content"`
-		IsError bool `json:"isError"`
-	}
-	if err := json.Unmarshal(result, &toolRes); err != nil {
-		return nil, fmt.Errorf("unmarshal tool: %w", err)
-	}
-	if toolRes.IsError {
-		return nil, fmt.Errorf("get_inbox error")
-	}
-	if len(toolRes.Content) == 0 {
-		return nil, nil
-	}
-
-	text := toolRes.Content[0].Text
-	var env lnInboxEnvelope
-	if err := json.Unmarshal([]byte(text), &env); err != nil {
-		var arr []lnInboxItem
-		if err2 := json.Unmarshal([]byte(text), &arr); err2 == nil {
-			return arr, nil
-		}
-		return nil, fmt.Errorf("parse inbox: %w", err)
-	}
-	return env.Results, nil
-}
-
-func (c *linkedInMCPClient) GetConversation(ctx context.Context, username, threadID string, limit int) ([]lnMessage, error) {
-	params := map[string]interface{}{
-		"linkedin_username": username,
-		"thread_id":         threadID,
-		"index":             limit,
-	}
-	result, err := c.send(ctx, "tools/call", map[string]interface{}{
-		"name":      "get_conversation",
-		"arguments": params,
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	var toolRes struct {
-		Content []struct {
-			Type string `json:"type"`
-			Text string `json:"text"`
-		} `json:"content"`
-		IsError bool `json:"isError"`
-	}
-	if err := json.Unmarshal(result, &toolRes); err != nil {
-		return nil, fmt.Errorf("unmarshal tool: %w", err)
-	}
-	if toolRes.IsError {
-		return nil, nil
-	}
-	if len(toolRes.Content) == 0 {
-		return nil, nil
-	}
-
-	text := toolRes.Content[0].Text
-	var env lnConvEnvelope
-	if err := json.Unmarshal([]byte(text), &env); err != nil {
-		var arr []lnMessage
-		if err2 := json.Unmarshal([]byte(text), &arr); err2 == nil {
-			return arr, nil
-		}
-		return nil, fmt.Errorf("parse conv: %w", err)
-	}
-	return env.Results, nil
-}
-
-func (c *linkedInMCPClient) Close() error {
-	if c.stdin != nil {
-		c.stdin.Flush()
-	}
-	if c.cmd != nil && c.cmd.Process != nil {
-		c.cmd.Process.Kill()
-	}
-	return nil
-}

bin/chats/main.go

@@ -1,115 +0,0 @@
-// bin/chats - sync, import, index, extract facts, and apply chat data
-// from Telegram, WhatsApp, LinkedIn into the brain and OnlyOffice CRM.
-//
-// Usage:
-//
-//	chats sync telegram   [--limit N] [--since DATE] [--phone PHONE]
-//	chats sync whatsapp   [--qr] [--limit N]
-//	chats sync linkedin   [--limit N]
-//	chats import                           # JSONL → MD (all sources)
-//	chats index                            # rebuild var/kb.lbug with chats
-//	chats facts                            # extract + cross-check
-//	chats apply          [--dry-run]       # push to OnlyOffice CRM
-package main
-
-import (
-	"fmt"
-	"os"
-	"strings"
-)
-
-func main() {
-	if len(os.Args) < 2 {
-		usage()
-		os.Exit(2)
-	}
-	cmd := os.Args[1]
-	args := os.Args[2:]
-	switch cmd {
-	case "sync":
-		if len(args) < 1 {
-			usage()
-			os.Exit(2)
-		}
-		platform := args[0]
-		platformArgs := args[1:]
-		switch platform {
-		case "telegram":
-			os.Exit(runSyncTelegram(platformArgs))
-		case "whatsapp":
-			fmt.Fprintf(os.Stderr, "chats: WhatsApp not implemented yet\n")
-			os.Exit(1)
-		case "linkedin":
-			os.Exit(runSyncLinkedIn(platformArgs))
-		default:
-			fmt.Fprintf(os.Stderr, "chats: unknown platform %q\n", platform)
-			os.Exit(2)
-		}
-	case "import":
-		os.Exit(runImport(args))
-	case "index":
-		os.Exit(runIndex(args))
-	case "facts":
-		os.Exit(runFacts(args))
-	case "apply":
-		os.Exit(runApply(args))
-	case "help", "-h", "--help":
-		usage()
-		return
-	default:
-		fmt.Fprintf(os.Stderr, "chats: unknown command %q\n", cmd)
-		usage()
-		os.Exit(2)
-	}
-}
-
-func usage() {
-	w := os.Stderr
-	fmt.Fprintln(w, `Usage: chats <command> [args]
-
-Commands:
-  sync telegram  [--limit N] [--since DATE] [--phone PHONE]
-  sync whatsapp  [--qr] [--limit N]
-  sync linkedin  [--limit N]
-  import                             JSONL → MD (all sources)
-  index                              rebuild var/kb.lbug with chats
-  facts                              extract + cross-check facts
-  apply             [--dry-run]      push to OnlyOffice CRM
-
-Output layout:
-  var/chats/<platform>/<chat_id>/messages.jsonl
-  var/chats/md/<platform>/<chat_name>/messages.md`)
-}
-
-// repoRoot locates the 2dph project root by walking up from the binary.
-func repoRoot() string {
-	if v := os.Getenv("KB_ROOT"); v != "" {
-		return v
-	}
-	wd, err := os.Getwd()
-	if err != nil {
-		return "."
-	}
-	for i := 0; i < 10; i++ {
-		if _, err := os.Stat(wd + "/var"); err == nil {
-			return wd
-		}
-		if _, err := os.Stat(wd + "/.git"); err == nil {
-			return wd
-		}
-		parent := wd
-		if idx := strings.LastIndex(wd, "/"); idx >= 0 {
-			parent = wd[:idx]
-		}
-		if parent == wd {
-			break
-		}
-		wd = parent
-	}
-	return "."
-}
-
-// chatsDir returns var/chats under the repo root.
-func chatsDir() string {
-	return repoRoot() + "/var/chats"
-}

bin/chats/refresh-linkedin-session

@@ -0,0 +1,155 @@
+#!/usr/bin/env python3
+"""chats/refresh-linkedin-session - refresh LinkedIn MCP session from webtop CDP.
+
+  bin/chats/refresh-linkedin-session [--cdp URL] [--root DIR]
+"""
+
+Reads the current LinkedIn cookies out of the running Thorium browser in the
+work-webtop container via CDP (Network.getAllCookies), copies the live browser
+profile onto the source profile directory, and rewrites the portable
+cookies.json + source-state.json that mcp-server-linkedin requires.
+
+Usage:
+  refresh-linkedin-session [--cdp http://127.0.0.1:9222] [--root /var/tmp/liprofile]
+                           [--container work-webtop] [--profile thorium-profile]
+
+After the headless driver uses a copied profile, LinkedIn rotates the session
+in that copy, so this must run before every sync.
+"""
+
+import asyncio
+import json
+import os
+import shutil
+import subprocess
+import sys
+import tempfile
+import urllib.request
+
+import websockets
+
+
+def cdp_tab(ws_json):
+    for t in ws_json:
+        if t.get("webSocketDebuggerUrl"):
+            return t["webSocketDebuggerUrl"]
+    return None
+
+
+async def get_cookies(ws_url):
+    async with websockets.connect(ws_url, max_size=50_000_000) as ws:
+        await ws.send(json.dumps({"id": 1, "method": "Network.getAllCookies", "params": {}}))
+        resp = await ws.recv()
+        return json.loads(resp).get("result", {}).get("cookies", [])
+
+
+def write_source_state(root, profile_dir):
+    # Reuse the linkedin-mcp-server session_state module to write a valid
+    # source-state.json (same schema the daemon reads).
+    try:
+        from linkedin_mcp_server.session_state import canonical, write_source_state
+
+        write_source_state(canonical(__import__("pathlib").Path(profile_dir)))
+        return
+    except Exception:
+        pass
+    # Fallback: minimal schema-compatible state.
+    import uuid
+
+    state = {
+        "version": 1,
+        "source_runtime_id": "linux-amd64-host",
+        "login_generation": str(uuid.uuid4()),
+        "created_at": None,
+        "profile_path": profile_dir,
+        "cookies_path": os.path.join(root, "cookies.json"),
+    }
+    from datetime import datetime, timezone
+
+    state["created_at"] = datetime.now(timezone.utc).isoformat()
+    with open(os.path.join(root, "source-state.json"), "w") as f:
+        json.dump(state, f, indent=2)
+
+
+def main():
+    args = sys.argv[1:]
+    cdp = "http://127.0.0.1:9222"
+    root = "/var/tmp/liprofile"
+    container = "work-webtop"
+    cprofile = "thorium-profile"
+    for i in range(0, len(args), 2):
+        k = args[i]
+        v = args[i + 1] if i + 1 < len(args) else ""
+        if k == "--cdp":
+            cdp = v
+        elif k == "--root":
+            root = v
+        elif k == "--container":
+            container = v
+        elif k == "--profile":
+            cprofile = v
+
+    profile_dir = os.path.join(root, "profile")
+    os.makedirs(profile_dir, exist_ok=True)
+
+    # 1. Clear stale daemon/browser locks so the server can claim the profile.
+    for lock in ("profile-claim.lock", "profile.lock", "daemon.lock", "lease.lock"):
+        p = os.path.join(root, lock)
+        if os.path.exists(p):
+            os.remove(p)
+    for name in os.listdir(profile_dir):
+        if name.startswith("Singleton"):
+            os.remove(os.path.join(profile_dir, name))
+    for name in os.listdir(root):
+        if name.startswith("invalid-state-"):
+            shutil.rmtree(os.path.join(root, name), ignore_errors=True)
+
+    # 1. Copy the live browser profile (cookies DB + Local State) so the
+    #    session the driver launches carries the current login.
+    subprocess.run(
+        ["docker", "cp", f"{container}:/config/{cprofile}/Default", os.path.join(profile_dir, "Default")],
+        check=True, capture_output=True,
+    )
+    subprocess.run(
+        ["docker", "cp", f"{container}:/config/{cprofile}/Local State", os.path.join(profile_dir, "Local State")],
+        check=True, capture_output=True,
+    )
+    for lock in ("SingletonLock", "SingletonCookie", "SingletonSocket"):
+        p = os.path.join(profile_dir, lock)
+        if os.path.exists(p):
+            os.remove(p)
+
+    # 2. Pull the live cookies out of the running browser.
+    with urllib.request.urlopen(f"{cdp}/json", timeout=5) as r:
+        tabs = json.loads(r.read())
+    ws_url = cdp_tab(tabs)
+    if not ws_url:
+        sys.stderr.write("refresh-linkedin-session: no CDP tab\n")
+        sys.exit(1)
+    cookies = asyncio.run(get_cookies(ws_url))
+
+    li = [c for c in cookies if "linkedin" in c.get("domain", "")]
+    out = []
+    for c in li:
+        domain = c.get("domain", "")
+        if domain in (".www.linkedin.com", "www.linkedin.com"):
+            domain = ".linkedin.com"
+        out.append({
+            "name": c["name"],
+            "value": c["value"].strip('"'),
+            "domain": domain,
+            "path": c.get("path", "/"),
+            "expires": c.get("expires", -1),
+            "httpOnly": c.get("httpOnly", False),
+            "secure": c.get("secure", False),
+            "sameSite": c.get("sameSite", "None"),
+        })
+    with open(os.path.join(root, "cookies.json"), "w") as f:
+        json.dump(out, f, indent=2)
+
+    write_source_state(root, profile_dir)
+    sys.stderr.write(f"refresh-linkedin-session: {len(out)} cookies, profile refreshed\n")
+
+
+if __name__ == "__main__":
+    main()

bin/chats/sync.go

@@ -0,0 +1,41 @@
+//usr/bin/env go run -tags=chats_sync "$0" "$@"; exit
+//go:build chats_sync
+//
+// bin/chats/sync.go - download chat messages to var/chats/<platform>/.
+//
+//	./bin/chats/sync.go telegram [--limit N] [--phone PHONE]
+//	./bin/chats/sync.go linkedin [--limit N] [--refresh]
+//
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/eSlider/2dph/internal/chats"
+)
+
+func main() {
+	if len(os.Args) < 2 {
+		fmt.Fprintln(os.Stderr, `usage: bin/chats/sync.go telegram|linkedin [flags]`)
+		os.Exit(2)
+	}
+	platform := os.Args[1]
+	args := os.Args[2:]
+	switch platform {
+	case "telegram":
+		os.Exit(chats.RunSyncTelegram(args))
+	case "linkedin":
+		os.Exit(chats.RunSyncLinkedIn(args))
+	case "whatsapp":
+		fmt.Fprintln(os.Stderr, "chats: WhatsApp not implemented yet")
+		os.Exit(1)
+	case "help", "-h", "--help":
+		fmt.Fprintln(os.Stderr, `usage: bin/chats/sync.go telegram|linkedin [flags]`)
+		return
+	default:
+		fmt.Fprintf(os.Stderr, "chats: unknown platform %q\n", platform)
+		os.Exit(2)
+	}
+}

bin/chats/sync_linkedin_cmd.go

@@ -1,69 +0,0 @@
-package main
-
-import (
-	"context"
-	"flag"
-	"fmt"
-	"os"
-	"os/exec"
-	"strings"
-	"time"
-)
-
-func checkLinkedInSession(userDataDir string) (bool, error) {
-	cmd := exec.Command("uvx", "mcp-server-linkedin@latest",
-		"--user-data-dir", userDataDir,
-		"--no-auto-import",
-		"--status",
-	)
-	out, err := cmd.CombinedOutput()
-	if err != nil {
-		return true, fmt.Errorf("status check: %w\n%s", err, string(out))
-	}
-	return !strings.Contains(string(out), "✅"), nil
-}
-
-func runSyncLinkedIn(args []string) int {
-	fs := flag.NewFlagSet("chats sync linkedin", flag.ContinueOnError)
-	limit := fs.Int("limit", 0, "max messages per conversation (0 = all)")
-	help := fs.Bool("help", false, "")
-	fs.SetOutput(os.Stderr)
-	if err := fs.Parse(args); err != nil {
-		return 2
-	}
-	if *help {
-		fmt.Fprintln(os.Stderr, "usage: chats sync linkedin [--limit N]")
-		return 0
-	}
-
-	userDataDir := envVar("LINKEDIN_USER_DATA_DIR", "")
-	if userDataDir == "" {
-		home, _ := os.UserHomeDir()
-		userDataDir = home + "/.linkedin-mcp/profile"
-	}
-
-	// Check session first
-	loginNeeded, err := checkLinkedInSession(userDataDir)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "chats: linkedin status check: %v\n", err)
-	}
-	if loginNeeded {
-		fmt.Fprintf(os.Stderr, "chats: LinkedIn session expired. Run:\n")
-		fmt.Fprintf(os.Stderr, "  uvx mcp-server-linkedin@latest --user-data-dir %s --login\n", userDataDir)
-		fmt.Fprintf(os.Stderr, "Then retry 'chats sync linkedin'\n")
-		return 1
-	}
-
-	src := NewLinkedInMCPSource(userDataDir)
-
-	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Minute)
-	defer cancel()
-
-	start := time.Now()
-	if err := src.Sync(ctx, chatsDir(), *limit); err != nil {
-		fmt.Fprintf(os.Stderr, "chats sync linkedin: %v\n", err)
-		return 1
-	}
-	fmt.Printf("chats sync linkedin: completed in %s\n", time.Since(start).Round(time.Millisecond))
-	return 0
-}

bin/doc.go

@@ -0,0 +1,2 @@
+// Deprecated shebang mains at bin root (serve.go is tagged brain_serve).
+package main

bin/docker-entrypoint

@@ -2,10 +2,10 @@
 # bin/docker-entrypoint - run 2dph tools inside the container.
 #
 #   brain                 shell (default)
-#   brain search <q>      bin/kb/search
+#   brain search <q>      bin/brain/search.go
-#   brain index           bin/kb/index
+#   brain index           bin/kb/index --with-mail
-#   brain watch <dir>     watchdog re-indexer (bin/kb/watch)
+#   brain watch <dir>     compiled /app/bin/watch (bin/brain/watch.go)
-#   brain serve           async Go HTTP server (bin/serve)
+#   brain serve           compiled /app/bin/serve (bin/brain/serve.go)
 #   brain extract         bin/facts/extract (docker×compose pairing)
 #   brain audit           bin/facts/audit
 #
@@ -18,7 +18,7 @@ shift || true
 case "$CMD" in
   shell) exec bash ;;
   search) exec "$KB_PY" /app/bin/kb/search "$@" ;;
-  index) exec "$KB_PY" /app/bin/kb/index "$@" ;;
+  index) exec "$KB_PY" /app/bin/kb/index --with-mail "$@" ;;
   watch) exec /app/bin/watch "$@" ;;
   serve) exec /app/bin/serve "$@" ;;
   extract) exec "$KB_PY" /app/bin/facts/extract "$@" ;;

bin/git/import

@@ -1,154 +1,26 @@
 #!/usr/bin/env python3
-"""git/import - import git history (commits, authors, files) into the brain.
+"""git/import — deprecated. Use bin/git/import.go (go-git, no git binary).
 
-  bin/git/import [REPO]                 import all commits -> leafs + graph
+  bin/git/import.go [REPO] [--json] [--limit N] [--since DATE]
-  bin/git/import --json                 emit import leafs as JSON, no write
-  bin/git/import --limit 100            cap commits processed
-  bin/git/import --since 2026-01-01     only recent commits
-  bin/git/import --root DIR             run per repo dir under DIR
-  bin/git/import --no-env               never read .env anywhere (default: true)
-
-Reads `git log --no-merges --name-only` from the repo, maps commits to
-`info` leafs (root=info, type=commit) and writes the version graph
-`File -[:HAS_VERSION]-> Commit -[:AUTHORED]-> Person` into var/kb.lbug.
-Idempotent: leaf MERGE by (source,text via leaf_id), graph MERGE by sha.
 """
 from __future__ import annotations
 
-import json
+import os
-import subprocess
 import sys
 from pathlib import Path
 
 ROOT = Path(__file__).resolve().parents[2]
-sys.path.insert(0, str(ROOT / "bin" / "tools"))
-
-from kblib import (  # noqa: E402
-    connect, ensure_indexes, init_schema, upsert_leaf,
-)
-from gitimport import commits_to_leafs, ensure_git_schema, index_commits, parse_log  # noqa: E402
-
-LOG_FMT = "--format=%x1e%H%x1f%an%x1f%ae%x1f%aI%x1f%s"
-
-
-def git_log(repo: Path, limit: int = 0, since: str = "") -> str:
-    cmd = ["git", "-C", str(repo), "log", "--no-merges", "--name-only", LOG_FMT]
-    if since:
-        cmd += ["--since", since]
-    if limit:
-        cmd += ["-n", str(limit)]
-    try:
-        out = subprocess.run(cmd, capture_output=True, text=True, timeout=120)
-    except (FileNotFoundError, subprocess.TimeoutExpired):
-        return ""
-    if out.returncode != 0:
-        print(f"git/import: {repo}: {out.stderr.strip()}", file=sys.stderr)
-        return ""
-    return out.stdout
-
-
-def repo_name(repo: Path) -> str:
-    try:
-        out = subprocess.run(
-            ["git", "-C", str(repo), "remote", "get-url", "origin"],
-            capture_output=True, text=True, timeout=20)
-        url = out.stdout.strip()
-        return url.rstrip("/").split("/")[-1].removesuffix(".git") if url else repo.name
-    except (FileNotFoundError, subprocess.TimeoutExpired):
-        return repo.name
-
-
-def embedder():
-    from model2vec import StaticModel
-    model = StaticModel.from_pretrained("minishlab/potion-multilingual-128M")
-    return lambda text: model.encode([text])[0].astype(float).tolist()
-
-
-def import_repo(conn, repo: Path, embed, limit: int, since: str,
-                no_write: bool = False) -> tuple[int, int]:
-    raw = git_log(repo, limit, since)
-    commits = parse_log(raw)
-    leafs = commits_to_leafs(commits, repo_name(repo))
-    if no_write:
-        return len(commits), 0
-    written = 0
-    for lf in leafs:
-        query = f"{lf['heading']}\n\n{lf['text']}"
-        emb = embed(lf["text"]) if lf["text"] else None
-        upsert_leaf(conn, text=query, root="info", confidence="confirmed",
-                    source=lf["source"], source_rev="git", how="git/import",
-                    loc=lf["source"], type_=lf.get("type", "commit"),
-                    embedding=emb)
-        written += 1
-    index_commits(conn, commits, repo_name(repo))
-    return len(commits), written
 
 
 def main(argv: list[str]) -> int:
-    import argparse
+    print(
-    p = argparse.ArgumentParser(description="import git history into the brain")
+        "bin/git/import is deprecated; use bin/git/import.go (go-git)",
-    p.add_argument("repo", nargs="?", default=None)
+        file=sys.stderr,
-    p.add_argument("--root", default=None, help="directory of repos to import (each git dir separately)")
+    )
-    p.add_argument("--limit", type=int, default=0)
+    target = ROOT / "bin" / "git" / "import.go"
-    p.add_argument("--since", default="")
+    os.execvp("go", ["go", "run", str(target), *argv])
-    p.add_argument("--json", action="store_true")
+    return 1
-    p.add_argument("--dry-run", action="store_true", help="parse + report, no db write")
-    a = p.parse_args(argv)
-
-    repos: list[Path] = []
-    if a.repo:
-        repos = [Path(a.repo)]
-    elif a.root:
-        root = Path(a.root)
-        if root.is_file():
-            repos = [root]
-        else:
-            repos = [dp for dp in sorted(root.iterdir()) if (dp / ".git").exists() or dp.is_file()]
-    else:
-        repos = [ROOT]
-
-    total_commits = 0
-    results: list[dict] = []
-    if a.dry_run:
-        for repo in repos:
-            if not repo.exists():
-                continue
-            commits = parse_log(git_log(repo, a.limit, a.since))
-            name = repo_name(repo)
-            total_commits += len(commits)
-            results.append({"repo": name, "commits": len(commits),
-                            "leafs": len(commits_to_leafs(commits, name)), "path": str(repo)})
-        if a.json:
-            print(json.dumps(results, indent=2))
-        else:
-            for r in results:
-                print(f"{r['repo']:<24} {r['commits']:>5} commits -> {r['leafs']} leafs  {r['path']}")
-        return 0
-
-    # Never DROP FTS/VECTOR (ghost catalog). Upsert while indexes exist is OK;
-    # ensure_indexes only CREATEs when missing.
-    db, conn = connect(ROOT / "var" / "kb.lbug", read_only=False)
-    init_schema(conn)
-    embed = embedder()
-    rows: list[dict] = []
-    for repo in repos:
-        if not repo.exists():
-            continue
-        reached, written = import_repo(conn, repo, embed, a.limit, a.since)
-        total_commits += reached
-        rows.append({"repo": repo_name(repo), "commits": reached, "written": written})
-    ensure_indexes(conn)
-    conn.close()
-    db.close()
-
-    if a.json:
-        print(json.dumps(rows, indent=2))
-    else:
-        for r in rows:
-            print(f"imported {r['commits']:>5} commits -> {r['written']} leafs  {r['repo']}")
-        print(f"total: {total_commits} commits")
-    return 0
 
 
 if __name__ == "__main__":
-    sys.exit(main(sys.argv[1:]))
+    sys.exit(main(sys.argv[1:]))

bin/git/import.go

@@ -0,0 +1,143 @@
+//usr/bin/env go run "$0" "$@"; exit
+//
+// bin/git/import.go - read git history with go-git (no git binary).
+//
+//	./bin/git/import.go [REPO]
+//	./bin/git/import.go --json
+//	./bin/git/import.go --limit 100 --since 2026-01-01
+//	./bin/git/import.go --root DIR
+//
+// Conversion only: prints commit leafs. Brain write is bin/brain/index.go.
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strconv"
+	"time"
+
+	"github.com/eSlider/2dph/internal/cmdbin"
+	"github.com/eSlider/2dph/internal/gitlog"
+)
+
+func main() {
+	os.Exit(run(os.Args[1:]))
+}
+
+func run(args []string) int {
+	var repo, root, since string
+	limit := 0
+	jsonOut := false
+	i := 0
+	for i < len(args) {
+		a := args[i]
+		switch {
+		case a == "--json":
+			jsonOut = true
+		case a == "--limit" && i+1 < len(args):
+			i++
+			n, err := strconv.Atoi(args[i])
+			if err != nil || n < 0 {
+				fmt.Fprintf(os.Stderr, "git/import: --limit must be a non-negative integer\n")
+				return 2
+			}
+			limit = n
+		case a == "--since" && i+1 < len(args):
+			i++
+			since = args[i]
+		case a == "--root" && i+1 < len(args):
+			i++
+			root = args[i]
+		case a == "-h" || a == "--help":
+			fmt.Fprintln(os.Stderr, `usage: bin/git/import.go [REPO] [--json] [--limit N] [--since DATE] [--root DIR]`)
+			return 0
+		case len(a) > 0 && a[0] != '-':
+			repo = a
+		default:
+			fmt.Fprintf(os.Stderr, "git/import: unknown flag %s\n", a)
+			return 2
+		}
+		i++
+	}
+
+	var sinceT time.Time
+	if since != "" {
+		var err error
+		sinceT, err = parseSince(since)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "git/import: %v\n", err)
+			return 2
+		}
+	}
+
+	repos := []string{}
+	if repo != "" {
+		repos = []string{repo}
+	} else if root != "" {
+		entries, err := os.ReadDir(root)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "git/import: %v\n", err)
+			return 1
+		}
+		for _, e := range entries {
+			p := filepath.Join(root, e.Name())
+			if _, err := os.Stat(filepath.Join(p, ".git")); err == nil {
+				repos = append(repos, p)
+			}
+		}
+	} else {
+		repos = []string{cmdbin.Root()}
+	}
+
+	opt := gitlog.Options{Limit: limit, Since: sinceT}
+	type row struct {
+		Repo    string         `json:"repo"`
+		Path    string         `json:"path"`
+		Commits int            `json:"commits"`
+		Leafs   []gitlog.Leaf  `json:"leafs,omitempty"`
+	}
+	var rows []row
+	for _, p := range repos {
+		name, err := gitlog.RepoName(p)
+		if err != nil && name == "" {
+			fmt.Fprintf(os.Stderr, "git/import: %s: %v\n", p, err)
+			continue
+		}
+		cs, err := gitlog.Log(p, opt)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "git/import: %s: %v\n", p, err)
+			return 1
+		}
+		leafs := make([]gitlog.Leaf, 0, len(cs))
+		for _, c := range cs {
+			leafs = append(leafs, gitlog.ToLeaf(c, name))
+		}
+		rows = append(rows, row{Repo: name, Path: p, Commits: len(cs), Leafs: leafs})
+	}
+
+	if jsonOut {
+		enc := json.NewEncoder(os.Stdout)
+		enc.SetIndent("", "  ")
+		enc.SetEscapeHTML(false)
+		if err := enc.Encode(rows); err != nil {
+			return 1
+		}
+		return 0
+	}
+	for _, r := range rows {
+		fmt.Printf("%-24s %5d commits  %s\n", r.Repo, r.Commits, r.Path)
+	}
+	return 0
+}
+
+func parseSince(s string) (time.Time, error) {
+	for _, layout := range []string{time.RFC3339, "2006-01-02"} {
+		if t, err := time.Parse(layout, s); err == nil {
+			return t, nil
+		}
+	}
+	return time.Time{}, fmt.Errorf("cannot parse --since %q", s)
+}

bin/kb/index

@@ -26,6 +26,7 @@ from kblib import (  # noqa: E402
     open_readonly, stats,
 )
 from mdleaves import read_markdown, to_all, walk_markdown  # noqa: E402
+from mailleafs import from_mail_root  # noqa: E402
 
 CORPUS_DEFAULTS = ["README.md", "PLAN.md", "AGENTS.md", "docs", "skills"]
 
@@ -99,6 +100,9 @@ def main(argv: list[str]) -> int:
     p = argparse.ArgumentParser(description="build the 2dph brain index")
     p.add_argument("--corpus", action="append", help="extra markdown dir/file to index (may repeat)")
     p.add_argument("--rebuild", action="store_true", help="fresh db + indexes")
+    p.add_argument("--with-mail", action="store_true", help="include var/mail message.md leafs")
+    p.add_argument("--since", default="", help="with --with-mail, only messages dated >= YYYY-MM-DD")
+    p.add_argument("--dry-run", action="store_true", help="count leafs, write nothing")
     p.add_argument(
         "--skip-indexes",
         action="store_true",
@@ -109,14 +113,26 @@ def main(argv: list[str]) -> int:
     a = p.parse_args(argv)
 
     from kblib import DB_PATH, VAR
-    VAR.mkdir(exist_ok=True)
-    if a.rebuild and DB_PATH.exists():
-        DB_PATH.unlink()
 
     leafs = load_corpus(ROOT)
     if a.corpus:
         for source in a.corpus:
             leafs.extend(load_corpus_glob(source))
+    mail_n = 0
+    if a.with_mail:
+        mail = from_mail_root(ROOT / "var" / "mail", since=a.since)
+        mail_n = len(mail)
+        leafs.extend(mail)
+
+    if a.dry_run:
+        msg = {"indexed": 0, "corpus_total": len(leafs), "mail_leafs": mail_n, "dry_run": True}
+        print(json.dumps(msg, indent=2) if a.json else
+              f"brain/index: {len(leafs)} leafs would be indexed (mail={mail_n})")
+        return 0
+
+    VAR.mkdir(exist_ok=True)
+    if a.rebuild and DB_PATH.exists():
+        DB_PATH.unlink()
 
     db, conn = connect(DB_PATH, read_only=False)
     init_schema(conn)

bin/kb/search

@@ -1,34 +1,37 @@
 #!/usr/bin/env bash
-# bin/kb/search - Go deduction search over the brain (model served by daemon).
+# bin/kb/search — deprecated wrapper. Use bin/brain/search.go.
-# Builds the kbsearch binary on first run / when source changes, then execs it.
+# Sets CGO for ladybug, builds a binary (embed daemon needs a real executable),
+# then execs it. Prints one deprecation line.
 set -euo pipefail
 
-KB="$(cd "$(dirname "$0")/../.." && pwd)"
+ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
-BIN="$KB/var/bin/kbsearch"
+BIN="$ROOT/var/bin/brain-search"
-SRC="$KB/bin/kbsearch"
+SRC="$ROOT/internal/brain"
+CMD="$ROOT/bin/brain"
 
-mkdir -p "$KB/var/bin"
+mkdir -p "$ROOT/var/bin"
 
-# Rebuild if binary missing or any .go source newer
 need_build=0
 if [ ! -x "$BIN" ]; then
-    need_build=1
+	need_build=1
 else
-    # Check if any .go in kbsearch is newer than binary
+	while IFS= read -r -d '' f; do
-    while IFS= read -r -d '' f; do
+		if [ "$f" -nt "$BIN" ]; then
-        if [ "$f" -nt "$BIN" ]; then
+			need_build=1
-            need_build=1
+			break
-            break
+		fi
-        fi
+	done < <(find "$SRC" "$CMD" -name '*.go' -print0 2>/dev/null)
-    done < <(find "$SRC" -name '*.go' -print0 2>/dev/null)
 fi
 
 if [ "$need_build" -eq 1 ]; then
-    echo "Building kbsearch..." >&2
+	echo "Building brain/search..." >&2
-    (cd "$SRC" && \
+	(
-        CGO_CFLAGS="-I$KB/lib-ladybug" \
+		cd "$ROOT" &&
-        CGO_LDFLAGS="-L$KB/lib-ladybug -Wl,-rpath,$KB/lib-ladybug" \
+			CGO_CFLAGS="-I$ROOT/lib-ladybug" \
-        go build -tags system_ladybug -o "$BIN" .) || exit 1
+			CGO_LDFLAGS="-L$ROOT/lib-ladybug -Wl,-rpath,$ROOT/lib-ladybug" \
+			go build -tags system_ladybug -o "$BIN" ./bin/brain
+	) || exit 1
 fi
 
-exec "$BIN" "$@"
+echo "bin/kb/search is deprecated; use bin/brain/search.go" >&2
+exec "$BIN" "$@"

bin/kb/watch.go

@@ -1,5 +1,5 @@
 //usr/bin/env go run "$0" "$@"; exit
-// bin/kb/watch.go - re-index the 2dph brain when corpus files change.
+// bin/kb/watch.go — deprecated. Use bin/brain/watch.go.
 //
 // Usage:
 //

bin/kbsearch/go.mod

@@ -1,23 +0,0 @@
-module github.com/eSlider/2dph/bin/kbsearch
-
-go 1.26.0
-
-require (
-	github.com/LadybugDB/go-ladybug v0.17.0
-	github.com/chewxy/math32 v1.11.2
-	github.com/daulet/tokenizers v1.27.0
-)
-
-require (
-	github.com/apache/arrow-go/v18 v18.6.0 // indirect
-	github.com/goccy/go-json v0.10.6 // indirect
-	github.com/google/flatbuffers v25.12.19+incompatible // indirect
-	github.com/google/uuid v1.6.0 // indirect
-	github.com/klauspost/compress v1.18.5 // indirect
-	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
-	github.com/pierrec/lz4/v4 v4.1.26 // indirect
-	github.com/shopspring/decimal v1.4.0 // indirect
-	github.com/zeebo/xxh3 v1.1.0 // indirect
-	golang.org/x/exp v0.0.0-20260112195511-716be5621a96 // indirect
-	golang.org/x/sys v0.43.0 // indirect
-)

bin/kbsearch/go.sum

@@ -1,44 +0,0 @@
-github.com/LadybugDB/go-ladybug v0.17.0 h1:RXDbkBjrbRmLdEbhGl4CLOIEzSt09gbP0n9UbKDEfwI=
-github.com/LadybugDB/go-ladybug v0.17.0/go.mod h1:GeIXmE8XyF5TFS94NAuTag7vgCC+no/HTBMRA6Rd5Cs=
-github.com/andybalholm/brotli v1.2.1 h1:R+f5xP285VArJDRgowrfb9DqL18yVK0gKAW/F+eTWro=
-github.com/andybalholm/brotli v1.2.1/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
-github.com/apache/arrow-go/v18 v18.6.0 h1:GX/Jyd3R7mCLiECAwY9FWbbaYblie2WXBSz4Sw8fNpM=
-github.com/apache/arrow-go/v18 v18.6.0/go.mod h1:gm3MiPpY82fLYK5VKPB3WoJbsiLVDfT7flD5/vHReKw=
-github.com/apache/thrift v0.22.0 h1:r7mTJdj51TMDe6RtcmNdQxgn9XcyfGDOzegMDRg47uc=
-github.com/apache/thrift v0.22.0/go.mod h1:1e7J/O1Ae6ZQMTYdy9xa3w9k+XHWPfRvdPyJeynQ+/g=
-github.com/chewxy/math32 v1.11.2 h1:IufN08Zwr1NKuWfY+4Tz55BcwKmyKKNdOP7KtumehnM=
-github.com/chewxy/math32 v1.11.2/go.mod h1:dOB2rcuFrCn6UHrze36WSLVPKtzPMRAQvBvUwkSsLqs=
-github.com/daulet/tokenizers v1.27.0 h1:MmFYAEDFz69s/nNQfHg59DWqHz3v94m99kEZ/JbL+s4=
-github.com/daulet/tokenizers v1.27.0/go.mod h1:YjFY1o1HGMyWkQgbXJDghhvke/yFDp2vGdIO2hYs4MQ=
-github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
-github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/goccy/go-json v0.10.6 h1:p8HrPJzOakx/mn/bQtjgNjdTcN+/S6FcG2CTtQOrHVU=
-github.com/goccy/go-json v0.10.6/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
-github.com/google/flatbuffers v25.12.19+incompatible h1:haMV2JRRJCe1998HeW/p0X9UaMTK6SDo0ffLn2+DbLs=
-github.com/google/flatbuffers v25.12.19+incompatible/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
-github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
-github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/klauspost/compress v1.18.5 h1:/h1gH5Ce+VWNLSWqPzOVn6XBO+vJbCNGvjoaGBFW2IE=
-github.com/klauspost/compress v1.18.5/go.mod h1:cwPg85FWrGar70rWktvGQj8/hthj3wpl0PGDogxkrSQ=
-github.com/klauspost/cpuid/v2 v2.3.0 h1:S4CRMLnYUhGeDFDqkGriYKdfoFlDnMtqTiI/sFzhA9Y=
-github.com/klauspost/cpuid/v2 v2.3.0/go.mod h1:hqwkgyIinND0mEev00jJYCxPNVRVXFQeu1XKlok6oO0=
-github.com/pierrec/lz4/v4 v4.1.26 h1:GrpZw1gZttORinvzBdXPUXATeqlJjqUG/D87TKMnhjY=
-github.com/pierrec/lz4/v4 v4.1.26/go.mod h1:EoQMVJgeeEOMsCqCzqFm2O0cJvljX2nGZjcRIPL34O4=
-github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
-github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k=
-github.com/shopspring/decimal v1.4.0/go.mod h1:gawqmDU56v4yIKSwfBSFip1HdCCXN8/+DMd9qYNcwME=
-github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
-github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
-github.com/zeebo/assert v1.3.0 h1:g7C04CbJuIDKNPFHmsk4hwZDO5O+kntRxzaUoNXj+IQ=
-github.com/zeebo/assert v1.3.0/go.mod h1:Pq9JiuJQpG8JLJdtkwrJESF0Foym2/D9XMU5ciN/wJ0=
-github.com/zeebo/xxh3 v1.1.0 h1:s7DLGDK45Dyfg7++yxI0khrfwq9661w9EN78eP/UZVs=
-github.com/zeebo/xxh3 v1.1.0/go.mod h1:IisAie1LELR4xhVinxWS5+zf1lA4p0MW4T+w+W07F5s=
-golang.org/x/exp v0.0.0-20260112195511-716be5621a96 h1:Z/6YuSHTLOHfNFdb8zVZomZr7cqNgTJvA8+Qz75D8gU=
-golang.org/x/exp v0.0.0-20260112195511-716be5621a96/go.mod h1:nzimsREAkjBCIEFtHiYkrJyT+2uy9YZJB7H1k68CXZU=
-golang.org/x/sys v0.43.0 h1:Rlag2XtaFTxp19wS8MXlJwTvoh8ArU6ezoyFsMyCTNI=
-golang.org/x/sys v0.43.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
-gonum.org/v1/gonum v0.17.0 h1:VbpOemQlsSMrYmn7T2OUvQ4dqxQXU+ouZFQsZOx50z4=
-gonum.org/v1/gonum v0.17.0/go.mod h1:El3tOrEuMpv2UdMrbNlKEh9vd86bmQ6vqIcDwxEOc1E=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

bin/kbsearch/main.go

@@ -1,44 +0,0 @@
-// bin/kbsearch - the Go implementation of bin/kb/search (nested module so the
-// root `go test ./...` and CI never compile it against native ladyships).
-//
-// Usage (built/run by ./bin/kb/search):
-//
-//	kbsearch "query" [--root facts|info] [--repo P] [-n N] [--json]
-//	kbsearch serve [port]           start the embedding daemon
-//	kbsearch --list-model           print the resolved model dir
-//
-// The potion-multilingual model is loaded only in `serve`; a CLI reuses the
-// daemon over localhost HTTP (falling back to in-process embedding).
-package main
-
-import (
-	"fmt"
-	"log"
-	"os"
-	"strconv"
-)
-
-func main() {
-	if len(os.Args) > 1 && os.Args[1] == "serve" {
-		port := 17830
-		if len(os.Args) > 2 {
-			if p, err := strconv.Atoi(os.Args[2]); err == nil {
-				port = p
-			}
-		}
-		if err := serve(port); err != nil {
-			log.Fatalf("kbsearch serve: %v", err)
-		}
-		return
-	}
-	if len(os.Args) > 1 && os.Args[1] == "--list-model" {
-		dir, err := modelDir()
-		if err != nil {
-			fmt.Fprintln(os.Stderr, err)
-			os.Exit(1)
-		}
-		fmt.Println(dir)
-		return
-	}
-	os.Exit(runSearch(os.Args[1:]))
-}

bin/kbsearch/types.go

@@ -1,16 +0,0 @@
-// Common types and helpers for kbsearch.
-package main
-
-import "os"
-
-func eps() string { return os.Getenv("KBTEST_EPS") }
-
-// Hit is one search result, mirroring the python script's dict shape.
-type Hit struct {
-	ID      string  `json:"id"`
-	Text    string  `json:"text"`
-	Root    string  `json:"root"`
-	Source  string  `json:"-"` // for repo filtering, not in output
-	Score   float64 `json:"score"`
-	Snippet string  `json:"snippet,omitempty"`
-}

bin/mail/import

@@ -15,8 +15,8 @@ Writes one directory per message: var/mail/{folder}/{message_id}/
   attachments/              raw attachment files (zips unpacked to _unpacked/)
   attachments/*.md          converted attachment content
 
-Indexing is a separate step (bin/mail/index_mail): conversion can crash in
+Indexing is a separate step (`bin/brain/index.go --rebuild`): conversion can
-native docling and must not leave the brain DB mid-transaction.
+crash in native docling and must not leave the brain DB mid-transaction.
 
 Requires ONLYOFFICE_URL/USER/PASS in .env (or env). Idempotent: a message
 already present (message.md exists) is skipped unless --force.

bin/mail/import.go

@@ -0,0 +1,20 @@
+//usr/bin/env go run -tags=mail_import "$0" "$@"; exit
+//go:build mail_import
+//
+// bin/mail/import.go - message.json → markdown (no brain write).
+//
+//	./bin/mail/import.go --from-raw var/mail
+//
+// Indexing is bin/brain/index.go --rebuild, not this command.
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/cmdbin"
+)
+
+func main() {
+	os.Exit(cmdbin.ExecFile("bin/mail/import", os.Args[1:]))
+}

bin/mail/index_mail

@@ -1,135 +1,26 @@
 #!/usr/bin/env python3
-"""mail/index_mail - rebuild the brain with every markdown under var/mail.
+"""mail/index_mail — deprecated. Use bin/brain/index.go --rebuild --with-mail.
 
-Ladybug corrupts its WAL when brand-new leafs are bulk-inserted while the
+Ladybug corrupts its WAL on bulk-insert into an already-indexed DB, so this
-FTS/VECTOR indexes already exist, so indexing ALWAYS runs as a fresh rebuild
+shim always rebuilds (repo corpus + var/mail). Conversion stays in mail/import.
-(repo corpus + var/mail), matching the proven-safe `kb/index --rebuild` path.
-Conversion and indexing stay separate: conversion can crash in native docling
-and must not leave the brain DB mid-transaction.
-
-  bin/mail/index_mail                 rebuild the index incl. all mail
-  bin/mail/index_mail --dry-run       count without writing
-  bin/mail/index_mail --limit N       cap messages included
-  bin/mail/index_mail --since D       only messages dated >= D (YYYY-MM-DD)
 """
 from __future__ import annotations
 
-import argparse
+import os
-import json
 import sys
 from pathlib import Path
 
 ROOT = Path(__file__).resolve().parents[2]
-sys.path.insert(0, str(ROOT / "bin" / "tools"))
-
-from kblib import DB_PATH, VAR, connect, ensure_indexes, init_schema, stats, upsert_leaf  # noqa: E402
-from mdleaves import read_markdown, to_all, walk_markdown  # noqa: E402
-
-
-def msg_date(md: Path) -> str:
-    j = md.parent / "message.json"
-    try:
-        d = json.loads(j.read_text(encoding="utf-8"))
-        return (d.get("receivedDate") or d.get("receivedAt") or "")[:10]
-    except Exception:
-        return ""
-
-
-def mail_leafs(limit: int, since: str, repo: str = "ooMail") -> list[dict]:
-    root = ROOT / "var" / "mail"
-    mds = sorted(root.rglob("message.md"))
-    if since:
-        mds = [m for m in mds if msg_date(m) >= since]
-    if limit:
-        mds = mds[:limit]
-    leafs: list[dict] = []
-    for md in mds:
-        files = [md] + sorted((md.parent / "attachments").glob("*.md"))
-        for f in files:
-            if not f.exists():
-                continue
-            for lf in to_all(read_markdown(f), f, repo=repo):
-                lf["source"] = f"ooMail:{md.parent.name}:{f.name}"
-                lf["how"] = "mail/import"
-                leafs.append(lf)
-    return leafs
 
 
 def main(argv: list[str]) -> int:
-    p = argparse.ArgumentParser(description="rebuild the brain incl. all mail")
+    print(
-    p.add_argument("--dry-run", action="store_true", help="count only, write nothing")
+        "bin/mail/index_mail is deprecated; use bin/brain/index.go --rebuild --with-mail",
-    p.add_argument("--limit", type=int, default=0, help="cap messages included")
+        file=sys.stderr,
-    p.add_argument("--since", default="", help="only messages dated >= YYYY-MM-DD")
+    )
-    p.add_argument("--json", action="store_true")
+    index = ROOT / "bin" / "kb" / "index"
-    a = p.parse_args(argv)
+    os.execv(sys.executable, [sys.executable, str(index), "--rebuild", "--with-mail", *argv])
-
+    return 1
-    mail = mail_leafs(a.limit, a.since)
-    if a.dry_run:
-        print(f"mail/index_mail: {len(mail)} mail leafs would be indexed")
-        return 0
-
-    # Fresh rebuild: delete DB, index repo corpus + mail, create indexes once
-    # at the end. Never insert into an already-indexed DB (WAL corruption).
-    VAR.mkdir(exist_ok=True)
-    if DB_PATH.exists():
-        DB_PATH.unlink()
-
-    corpus = _load_corpus()
-    leafs = corpus + mail
-
-    db, conn = connect(DB_PATH, read_only=False)
-    init_schema(conn)
-    embed = _embedder()
-    done, total = _index_leafs(conn, leafs, embed)
-    ensure_indexes(conn)
-    s = stats(conn)
-    conn.close()
-    db.close()
-
-    result = {"indexed": done, "corpus_total": total, "mail_leafs": len(mail),
-              **{k: v for k, v in s.items() if k in ("total", "by_root")}}
-    print(json.dumps(result, indent=2) if a.json else
-          f"mail/index_mail: indexed {done}/{total} leafs (mail={len(mail)}); db total {s['total']}")
-    return 0
-
-
-CORPUS_DEFAULTS = ["README.md", "PLAN.md", "AGENTS.md", "docs", "skills"]
-
-
-def _load_corpus() -> list[dict]:
-    files: list[Path] = []
-    for entry in CORPUS_DEFAULTS:
-        p = ROOT / entry
-        if p.is_file():
-            files.append(p)
-        elif p.is_dir():
-            files.extend(walk_markdown(p))
-    leafs: list[dict] = []
-    for path in files:
-        try:
-            leafs.extend(to_all(read_markdown(path), path, repo="eSlider/2dph"))
-        except OSError as e:
-            print(f"mail/index_mail: skip {path}: {e}", file=sys.stderr)
-    return leafs
-
-
-def _index_leafs(conn, leafs: list[dict], embed_fn) -> tuple[int, int]:
-    count = 0
-    for lf in leafs:
-        query = f"{lf['heading']}\n\n{lf['text']}"
-        emb = embed_fn(lf["text"]) if lf["text"] else None
-        upsert_leaf(conn, text=query, root="info", confidence="confirmed",
-                    source=lf["source"], source_rev="mail" if lf.get("how") == "mail/import" else "working-tree",
-                    how=lf.get("how", "kb/index"), loc=lf["source"], type_=lf.get("type", "reference"),
-                    embedding=emb)
-        count += 1
-    return count, len(leafs)
-
-
-def _embedder():
-    from model2vec import StaticModel
-    model = StaticModel.from_pretrained("minishlab/potion-multilingual-128M")
-    return lambda text: model.encode([text])[0].astype(float).tolist()
 
 
 if __name__ == "__main__":

bin/mail/sync.go

@@ -6,7 +6,7 @@
 //	./bin/mail/sync.go --dry-run
 //
 // Writes raw message.json + attachments under var/mail/<folder>/<id>/; run
-// bin/mail/import --from-raw afterwards to convert everything to markdown.
+// bin/mail/import.go --from-raw afterwards to convert everything to markdown.
 //
 // Shebang trick: first line is a Go `//` comment; the real code lives in the
 // importable package (module path, never a relative import).

bin/mail/sync/cli.go

@@ -32,6 +32,7 @@ func ParseCLI(args []string) (CLIConfig, int, error) {
 		offset = fs.Int("offset", 0, "skip first N messages per source")
 		force  = fs.Bool("force", false, "overwrite existing message.json + attachments")
 		dryRun = fs.Bool("dry-run", false, "list message counts without writing")
+		query  = fs.String("query", "in:inbox", "Gmail search query (gmail source only)")
 		srcs   = fs.String("source", "onlyoffice", "comma list: onlyoffice,gmail (default onlyoffice)")
 		help   = fs.Bool("help", false, "usage")
 	)
@@ -60,6 +61,7 @@ func ParseCLI(args []string) (CLIConfig, int, error) {
 		Offset:  *offset,
 		Force:   *force,
 		DryRun:  *dryRun,
+		Query:   *query,
 		Policy:  RetryPolicy{},
 	}
 	cli := CLIConfig{Sync: cfg, Env: *env, Sources: *srcs}
@@ -95,7 +97,7 @@ func Main(args []string) int {
 		return code
 	}
 	if cli.Help {
-		fmt.Fprintln(os.Stderr, "usage: bin/mail/sync.go [--source onlyoffice,gmail] [--limit N] [--offset N] [--workers N] [--force] [--dry-run]")
+		fmt.Fprintln(os.Stderr, "usage: bin/mail/sync.go [--source onlyoffice,gmail] [--query GMAIL_Q] [--limit N] [--offset N] [--workers N] [--force] [--dry-run]")
 		return 0
 	}
 	ctx, cancel := context.WithTimeout(context.Background(), 6*time.Hour)

bin/mail/sync/sync.go

@@ -112,6 +112,7 @@ type SyncConfig struct {
 	Offset  int                // skip first N messages per source
 	Force   bool               // overwrite existing message.json + attachments
 	DryRun  bool               // list without writing
+	Query   string             // Gmail search query; default in:inbox
 	Policy  RetryPolicy
 }
 
@@ -136,9 +137,17 @@ type ooSource struct {
 	c    *OOClient
 	page int
 }
+// gmailAPI is the Gmail client surface gmailSource needs. *GmailClient implements it.
+type gmailAPI interface {
+	ListIDs(ctx context.Context, q string, maxIDs int, pageToken string) ([]string, string, error)
+	GetMessage(ctx context.Context, id string) (*Message, error)
+	DownloadAttachment(ctx context.Context, msgID, attID string) ([]byte, error)
+}
+
 type gmailSource struct {
-	c   *GmailClient
+	c     gmailAPI
-	cur string
+	cur   string
+	query string
 }
 
 func (s *ooSource) Folder() string      { return "inbox" }
@@ -171,7 +180,11 @@ func (s *ooSource) DownloadAttachment(ctx context.Context, msg *Message, att Att
 }
 
 func (s *gmailSource) ListIDs(ctx context.Context, limit int, cursor string) ([]string, string, error) {
-	ids, next, err := s.c.ListIDs(ctx, "in:inbox", limit, cursor)
+	q := s.query
+	if q == "" {
+		q = "in:inbox"
+	}
+	ids, next, err := s.c.ListIDs(ctx, q, limit, cursor)
 	return ids, next, err
 }
 
@@ -207,7 +220,7 @@ func Run(ctx context.Context, cfg SyncConfig) (*SyncStats, error) {
 		if err != nil {
 			return nil, fmt.Errorf("gmail init: %w", err)
 		}
-		sources = append(sources, &gmailSource{c: gm})
+		sources = append(sources, &gmailSource{c: gm, query: cfg.Query})
 	}
 	if len(sources) == 0 {
 		return nil, errors.New("sync: no source configured (need OO, Gmail, or both)")

bin/mail/sync/sync_test.go

@@ -221,6 +221,71 @@ func TestCollectParts(t *testing.T) {
 	}
 }
 
+type fakeGmailAPI struct {
+	lastQ     string
+	lastLimit int
+	ids       []string
+}
+
+func (f *fakeGmailAPI) ListIDs(_ context.Context, q string, maxIDs int, _ string) ([]string, string, error) {
+	f.lastQ = q
+	f.lastLimit = maxIDs
+	return f.ids, "", nil
+}
+func (f *fakeGmailAPI) GetMessage(context.Context, string) (*Message, error) {
+	return nil, errors.New("unused")
+}
+func (f *fakeGmailAPI) DownloadAttachment(context.Context, string, string) ([]byte, error) {
+	return nil, errors.New("unused")
+}
+
+func TestGmailSourcePassesQueryToListIDs(t *testing.T) {
+	fake := &fakeGmailAPI{ids: []string{"m1"}}
+	src := &gmailSource{c: fake, query: "from:alice@example.com"}
+	ids, _, err := src.ListIDs(context.Background(), 10, "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if fake.lastQ != "from:alice@example.com" {
+		t.Fatalf("ListIDs q=%q, want from:alice@example.com", fake.lastQ)
+	}
+	if fake.lastLimit != 10 {
+		t.Fatalf("ListIDs limit=%d, want 10", fake.lastLimit)
+	}
+	if len(ids) != 1 || ids[0] != "m1" {
+		t.Fatalf("ids=%v", ids)
+	}
+}
+
+func TestGmailSourceEmptyQueryDefaultsToInbox(t *testing.T) {
+	fake := &fakeGmailAPI{}
+	src := &gmailSource{c: fake, query: ""}
+	if _, _, err := src.ListIDs(context.Background(), 5, ""); err != nil {
+		t.Fatal(err)
+	}
+	if fake.lastQ != "in:inbox" {
+		t.Fatalf("empty query q=%q, want in:inbox", fake.lastQ)
+	}
+}
+
+func TestParseCLIGmailQuery(t *testing.T) {
+	cli, code, err := ParseCLI([]string{
+		"--source", "gmail",
+		"--query", "from:letrado@example.com",
+		"--out", t.TempDir(),
+		"--dry-run",
+	})
+	if err != nil || code != 0 {
+		t.Fatalf("ParseCLI: code=%d err=%v", code, err)
+	}
+	if cli.Sync.Query != "from:letrado@example.com" {
+		t.Fatalf("query=%q", cli.Sync.Query)
+	}
+	if cli.Sync.Gmail == nil {
+		t.Fatal("gmail source not configured")
+	}
+}
+
 func b64(s string) string {
 	return base64.URLEncoding.EncodeToString([]byte(s))
 }

bin/markdown/doc.go

@@ -0,0 +1,3 @@
+// Commands in this directory are shebang mains (import.go), tagged so
+// `go build ./bin/markdown` does not see two mains.
+package main

bin/markdown/import.go

@@ -0,0 +1,20 @@
+//usr/bin/env go run -tags=markdown_import "$0" "$@"; exit
+//go:build markdown_import
+//
+// bin/markdown/import.go - split markdown into leafs (mistune).
+//
+//	./bin/markdown/import.go [dir]
+//	./bin/markdown/import.go --files a.md,b.md --json
+//
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/cmdbin"
+)
+
+func main() {
+	os.Exit(cmdbin.ExecFile("bin/md/import", os.Args[1:]))
+}

bin/postgres/doc.go

@@ -0,0 +1,2 @@
+// Commands in this directory are shebang mains (query.go).
+package main

bin/postgres/query.go

@@ -0,0 +1,20 @@
+//usr/bin/env go run -tags=postgres_query "$0" "$@"; exit
+//go:build postgres_query
+//
+// bin/postgres/query.go - read-only Postgres as YAML.
+//
+//	./bin/postgres/query.go --profile onlyoffice -c 'SELECT 1'
+//
+// Profiles: $HOME/.config/brain/db-profiles.yml (credentials stay out of git).
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/cmdbin"
+)
+
+func main() {
+	os.Exit(cmdbin.ExecFile("bin/db/psql-yq", os.Args[1:]))
+}

bin/serve.go

@@ -1,27 +1,22 @@
-//usr/bin/env go run "$0" "$@"; exit
+//usr/bin/env go run -tags=brain_serve "$0" "$@"; exit
-// bin/serve.go - async Go HTTP server for the 2dph brain (see bin/server).
+//go:build brain_serve
 //
-//	KB_ROOT=/path/to/2dph ./bin/serve.go        # serve the brain
+// bin/serve.go — deprecated; use bin/brain/serve.go.
-//	KB_SEARCH_CMD=... KB_WORKERS=4 KB_PORT=8630 ./bin/serve.go
-//
-// Shebang trick: the first line is a Go `//` comment; when executed, env runs
-// `go run "$0"` so this file doubles as an executable script. The real code
-// lives in the importable package (module path, never a relative import).
-// NOTE: never run `gofmt -w` on this file - it rewrites `//usr/bin/env` to
-// `// usr/...` and breaks the shebang.
 package main
 
 import (
+	"fmt"
 	"os"
 
-	"github.com/eSlider/2dph/bin/server"
+	"github.com/eSlider/2dph/internal/httpapi"
 )
 
 func main() {
-	if env := os.Getenv("KB_ROOT"); env == "" {
+	fmt.Fprintln(os.Stderr, "bin/serve.go is deprecated; use bin/brain/serve.go")
+	if os.Getenv("KB_ROOT") == "" {
 		if wd, err := os.Getwd(); err == nil {
 			os.Setenv("KB_ROOT", wd)
 		}
 	}
-	server.Run()
+	httpapi.Run(nil)
 }

bin/server/server.go

@@ -1,154 +0,0 @@
-// Package server serves the 2dph brain over HTTP.
-//
-// Async by design: every request runs on its own goroutine, and CPU-heavy
-// searches are serialized through a bounded worker pool (a counting
-// semaphore) so N requests can't spawn N Python interpreters at once.
-//
-// Used by bin/serve.go which is a self-executing shebang script:
-//
-//	///usr/bin/env go run "$0" "$@"; exit
-//	package main
-//	import "github.com/eSlider/2dph/bin/server"
-//	func main() { server.Run() }
-package server
-
-import (
-	"context"
-	"encoding/json"
-	"errors"
-	"log"
-	"net/http"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"strconv"
-	"strings"
-	"time"
-)
-
-type Searcher interface {
-	Search(ctx context.Context, query string, limit int) ([]byte, error)
-}
-
-type Server struct {
-	searcher  Searcher
-	semaphore chan struct{}
-}
-
-const defaultPort = 8630
-
-func NewServer(searcher Searcher, workers int) http.Handler {
-	return &Server{
-		searcher:  searcher,
-		semaphore: make(chan struct{}, workers),
-	}
-}
-
-func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-	switch {
-	case r.URL.Path == "/health":
-		writeJSON(w, http.StatusOK, map[string]any{"status": "ok"})
-	case r.URL.Path == "/search":
-		s.handleSearch(w, r)
-	default:
-		writeJSON(w, http.StatusNotFound, map[string]any{"error": "not found"})
-	}
-}
-
-func (s *Server) handleSearch(w http.ResponseWriter, r *http.Request) {
-	q := strings.TrimSpace(r.URL.Query().Get("q"))
-	if q == "" {
-		writeJSON(w, http.StatusBadRequest, map[string]any{"error": "q required"})
-		return
-	}
-	limit := 10
-	if raw := r.URL.Query().Get("n"); raw != "" {
-		n, err := strconv.Atoi(raw)
-		if err != nil || n < 1 || n > 100 {
-			writeJSON(w, http.StatusBadRequest, map[string]any{"error": "n must be int 1..100"})
-			return
-		}
-		limit = n
-	}
-
-	// Worker pool: block until a slot frees, so burst concurrency still
-	// bounds memory (no unbounded python processes).
-	select {
-	case s.semaphore <- struct{}{}:
-		defer func() { <-s.semaphore }()
-	case <-r.Context().Done():
-		return
-	}
-
-	body, err := s.searcher.Search(r.Context(), q, limit)
-	if err != nil {
-		writeJSON(w, http.StatusGatewayTimeout, map[string]any{"error": err.Error()})
-		return
-	}
-	writeRaw(w, http.StatusOK, body)
-}
-
-func writeJSON(w http.ResponseWriter, code int, obj any) {
-	body, _ := json.Marshal(obj)
-	writeRaw(w, code, body)
-}
-
-func writeRaw(w http.ResponseWriter, code int, body []byte) {
-	w.Header().Set("Content-Type", "application/json")
-	w.Header().Set("Content-Length", strconv.Itoa(len(body)))
-	w.WriteHeader(code)
-	w.Write(body)
-}
-
-// brainSearcher shells out to bin/kb/search --json. A single python search
-// is bounded and short-lived; the worker pool keeps at most N live.
-type brainSearcher struct {
-	cmdPath string
-	timeout time.Duration
-}
-
-func (b *brainSearcher) Search(ctx context.Context, query string, limit int) ([]byte, error) {
-	ctx, cancel := context.WithTimeout(ctx, b.timeout)
-	defer cancel()
-	cmd := exec.CommandContext(ctx, b.cmdPath, "--json", "-n", strconv.Itoa(limit), query)
-	out, err := cmd.Output()
-	if err != nil {
-		var exitErr *exec.ExitError
-		if errors.As(err, &exitErr) {
-			return nil, errors.New("search backend failed: " + strings.TrimSpace(string(exitErr.Stderr)))
-		}
-		return nil, err
-	}
-	return out, nil
-}
-
-// Run starts the HTTP server. Reads env: KB_SEARCH_CMD (default bin/kb/search,
-// relative to the repo root given by KB_ROOT), KB_WORKERS (default 4), KB_PORT
-// (default 8630).
-func Run() {
-	root := os.Getenv("KB_ROOT")
-	searchPath := os.Getenv("KB_SEARCH_CMD")
-	if searchPath == "" {
-		searchPath = filepath.Join(root, "bin", "kb", "search")
-	}
-	workers := 4
-	if raw := os.Getenv("KB_WORKERS"); raw != "" {
-		if n, err := strconv.Atoi(raw); err == nil && n > 0 {
-			workers = n
-		}
-	}
-	port := defaultPort
-	if raw := os.Getenv("KB_PORT"); raw != "" {
-		if n, err := strconv.Atoi(raw); err == nil && n > 0 {
-			port = n
-		}
-	}
-
-	searcher := &brainSearcher{cmdPath: searchPath, timeout: 60 * time.Second}
-	handler := NewServer(searcher, workers)
-	addr := "127.0.0.1:" + strconv.Itoa(port)
-	log.Printf("serve: %s (workers=%d)", addr, workers)
-	if err := http.ListenAndServe(addr, handler); err != nil {
-		log.Fatal(err)
-	}
-}

bin/tools/gitimport.py

@@ -1,21 +1,12 @@
-"""gitimport - parse `git log` output and turn commits into brain leafs.
+"""gitimport - Ladybug graph writes for Commit/File/Person (no git binary).
 
-Pure, testable functions. Field grammar (see bin/git/import):
+Commit records come from bin/git/import.go (go-git). This module only MERGEs
-
+the version graph File-[:HAS_VERSION]->Commit-[:AUTHORED]->Person.
-  git log --no-merges --name-only \
-      --format='%x1e%H%x1f%an%x1f%ae%x1f%aI%x1f%s'
-
-  0x1e = record separator, 0x1f = field separator.
-  Files: newline-separated lines following each record's subject.
 """
-
 from __future__ import annotations
 
 from dataclasses import dataclass, field
 
-REC_SEP = "\x1e"
-FIELD_SEP = "\x1f"
-
 
 @dataclass
 class Commit:
@@ -26,54 +17,6 @@ class Commit:
     subject: str
     files: list[str] = field(default_factory=list)
 
-    def leaf_text(self, repo: str) -> str:
-        head = f"commit {self.sha[:12]} in {repo} — {self.subject}"
-        body = [head, f"Author: {self.author} <{self.email}>", f"Date: {self.date}"]
-        if self.files:
-            body.append("Changing: " + ", ".join(self.files))
-        return "\n".join(body)
-
-
-def parse_log(text: str) -> list[Commit]:
-    """Parse `git log` output into Commit records.
-
-    Records are separated by 0x1e. A record is fields joined by 0x1f,
-    followed by optional newline-separated file paths inside the next
-    segment (git emits blank line + files after each record).
-    """
-    commits: list[Commit] = []
-    # field records and file lists alternate; simpler: split on REC_SEP,
-    # each chunk = header line, possibly followed by newline + files.
-    for chunk in text.split(REC_SEP):
-        chunk = chunk.strip("\n")
-        if not chunk:
-            continue
-        lines = chunk.split("\n", 1)
-        header = lines[0].split(FIELD_SEP)
-        if len(header) < 5:
-            continue
-        sha, author, email, date, subject = header[:5]
-        files = [ln.strip() for ln in lines[1].splitlines() if ln.strip()] if len(lines) > 1 else []
-        commits.append(Commit(sha=sha, author=author, email=email,
-                              date=date, subject=subject, files=files))
-    return commits
-
-
-def commits_to_leafs(commits: list[Commit], repo: str) -> list[dict]:
-    """Map commits to the leaf shape bin/kb/index expects (source/repo/...)."""
-    out: list[dict] = []
-    for c in commits:
-        out.append({
-            "source": f"{repo}@{c.sha}",
-            "repo": repo,
-            "heading": f"commit {c.sha[:12]} — {c.subject}",
-            "text": c.leaf_text(repo),
-            "type": "commit",
-            "status": "current",
-            "related": ",".join(c.files),
-        })
-    return out
-
 
 GIT_SCHEMA = (
     "CREATE NODE TABLE IF NOT EXISTS Commit (id STRING, repo STRING, subject STRING, "
@@ -114,4 +57,4 @@ def index_commits(conn, commits: list[Commit], repo: str) -> int:
             conn.execute("MATCH (f:File {id:$fid}), (c:Commit {id:$sha}) "
                          "MERGE (f)-[:HAS_VERSION]->(c)",
                          parameters={"fid": f"{repo}:{path}", "sha": c.sha})
-    return len(commits)
+    return len(commits)

bin/tools/kblib.py

@@ -135,7 +135,7 @@ def create_fts_and_vector(conn: ladybug.Connection, force: bool = False) -> None
 
     `force=True` is accepted for API compatibility but does **not** drop.
     Fresh indexes require deleting `var/kb.lbug` and rebuilding
-    (`bin/kb/index --rebuild`).
+    (`bin/brain/index.go --rebuild`).
     """
     del force  # API compat; DROP is unsafe — see docstring
     names = leaf_index_names(conn)
@@ -145,7 +145,7 @@ def create_fts_and_vector(conn: ladybug.Connection, force: bool = False) -> None
         except Exception as e:
             raise RuntimeError(
                 "CREATE_FTS_INDEX failed (often ghost catalog after DROP INDEX). "
-                "Delete var/kb.lbug and run bin/kb/index --rebuild. "
+                "Delete var/kb.lbug and run bin/brain/index.go --rebuild. "
                 f"Cause: {e}"
             ) from e
     if "Leaf_vec" not in names:
@@ -158,7 +158,7 @@ def create_fts_and_vector(conn: ladybug.Connection, force: bool = False) -> None
             raise RuntimeError(
                 "CREATE_VECTOR_INDEX failed (often ghost catalog after DROP INDEX "
                 "Leaf.Leaf_vec → `_0_Leaf_vec_UPPER already exists in catalog`). "
-                "Delete var/kb.lbug and run bin/kb/index --rebuild. "
+                "Delete var/kb.lbug and run bin/brain/index.go --rebuild. "
                 f"Cause: {e}"
             ) from e
     names = leaf_index_names(conn)
@@ -237,6 +237,6 @@ def stats(conn: ladybug.Connection) -> dict:
 
 def open_readonly() -> tuple[ladybug.Database, ladybug.Connection]:
     if not DB_PATH.exists():
-        raise FileNotFoundError(f"{DB_PATH} missing - run bin/kb/index first")
+        raise FileNotFoundError(f"{DB_PATH} missing - run bin/brain/index.go --rebuild first")
     db, conn = connect(read_only=True)
     return db, conn

bin/tools/mailleafs.py

@@ -0,0 +1,37 @@
+"""Mail markdown under var/mail → info leafs. Conversion stays off the brain DB."""
+from __future__ import annotations
+
+import json
+from pathlib import Path
+
+from mdleaves import read_markdown, to_all
+
+
+def msg_date(md: Path) -> str:
+    j = md.parent / "message.json"
+    try:
+        d = json.loads(j.read_text(encoding="utf-8"))
+        return (d.get("receivedDate") or d.get("receivedAt") or "")[:10]
+    except (OSError, json.JSONDecodeError, TypeError):
+        return ""
+
+
+def from_mail_root(root: Path, limit: int = 0, since: str = "", repo: str = "ooMail") -> list[dict]:
+    if not root.is_dir():
+        return []
+    mds = sorted(root.rglob("message.md"))
+    if since:
+        mds = [m for m in mds if msg_date(m) >= since]
+    if limit:
+        mds = mds[:limit]
+    leafs: list[dict] = []
+    for md in mds:
+        files = [md] + sorted((md.parent / "attachments").glob("*.md"))
+        for f in files:
+            if not f.exists():
+                continue
+            for lf in to_all(read_markdown(f), f, repo=repo):
+                lf["source"] = f"ooMail:{md.parent.name}:{f.name}"
+                lf["how"] = "mail/import"
+                leafs.append(lf)
+    return leafs

bin/tools/test_bin_layout.py

@@ -0,0 +1,121 @@
+"""D14 layout: bin/{subject}/{method}.go, libs in internal/, one go.mod."""
+from __future__ import annotations
+
+import unittest
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[2]
+
+
+class BinLayoutTest(unittest.TestCase):
+    def test_brain_search_shebang_exists(self) -> None:
+        p = ROOT / "bin" / "brain" / "search.go"
+        self.assertTrue(p.is_file(), "missing bin/brain/search.go")
+        first = p.read_text().splitlines()[0]
+        self.assertTrue(
+            first.startswith("//usr/bin/env go run"),
+            f"shebang first line, got {first!r}",
+        )
+
+    def test_no_nested_go_mod_under_bin(self) -> None:
+        nested = list((ROOT / "bin").rglob("go.mod"))
+        self.assertEqual(nested, [], f"nested go.mod files: {nested}")
+
+    def test_rank_lives_in_internal_brain(self) -> None:
+        self.assertTrue(
+            (ROOT / "internal" / "brain" / "rank" / "rank.go").is_file(),
+            "ranking must live in internal/brain/rank (cgo-free)",
+        )
+        self.assertFalse(
+            (ROOT / "bin" / "kbsearch").exists(),
+            "bin/kbsearch nested module must be gone",
+        )
+
+    def test_no_main_go_under_bin_brain(self) -> None:
+        main = ROOT / "bin" / "brain" / "main.go"
+        self.assertFalse(main.exists(), "bin/brain/main.go is not a method")
+
+    def test_chats_methods_are_shebangs_not_main(self) -> None:
+        chats = ROOT / "bin" / "chats"
+        self.assertFalse(
+            (chats / "main.go").exists(),
+            "bin/chats/main.go is a dispatcher, not a method",
+        )
+        self.assertFalse(
+            (chats / "index_cmd.go").exists(),
+            "chats index is a brain write hiding under the wrong subject",
+        )
+        for method in ("sync.go", "import.go", "facts.go", "apply.go"):
+            p = chats / method
+            self.assertTrue(p.is_file(), f"missing bin/chats/{method}")
+            first = p.read_text().splitlines()[0]
+            self.assertTrue(
+                first.startswith("//usr/bin/env go run"),
+                f"{method} shebang, got {first!r}",
+            )
+
+    def test_chats_lib_lives_in_internal(self) -> None:
+        self.assertTrue(
+            (ROOT / "internal" / "chats" / "linkedin.go").is_file(),
+            "LinkedIn parser must live in internal/chats",
+        )
+        self.assertFalse(
+            (ROOT / "bin" / "chats" / "linkedin.go").exists(),
+            "parser must not stay under bin/chats as a second main",
+        )
+
+    def _assert_shebang(self, rel: str) -> None:
+        p = ROOT / rel
+        self.assertTrue(p.is_file(), f"missing {rel}")
+        first = p.read_text().splitlines()[0]
+        self.assertTrue(
+            first.startswith("//usr/bin/env go run"),
+            f"{rel} shebang, got {first!r}",
+        )
+
+    def test_brain_methods_are_shebangs(self) -> None:
+        for method in ("index.go", "get.go", "stats.go", "eval.go", "watch.go"):
+            self._assert_shebang(f"bin/brain/{method}")
+
+    def test_mail_import_is_shebang_not_brain_write(self) -> None:
+        self._assert_shebang("bin/mail/import.go")
+        index_mail = (ROOT / "bin" / "mail" / "index_mail").read_text()
+        self.assertIn(
+            "bin/brain/index.go",
+            index_mail,
+            "index_mail must point at bin/brain/index.go",
+        )
+
+    def test_markdown_import_is_shebang(self) -> None:
+        self._assert_shebang("bin/markdown/import.go")
+
+    def test_postgres_query_is_shebang(self) -> None:
+        self._assert_shebang("bin/postgres/query.go")
+
+    def test_git_import_is_gogit_shebang(self) -> None:
+        self._assert_shebang("bin/git/import.go")
+        py = (ROOT / "bin" / "git" / "import").read_text()
+        self.assertNotIn(
+            '["git"',
+            py,
+            "Python git/import must not subprocess the git binary",
+        )
+        self.assertIn("bin/git/import.go", py)
+
+    def test_web_search_is_shebang(self) -> None:
+        self._assert_shebang("bin/web/search.go")
+        py = (ROOT / "bin" / "web" / "search").read_text()
+        self.assertIn("bin/web/search.go", py)
+
+    def test_gitimport_py_has_no_git_binary(self) -> None:
+        py = (ROOT / "bin" / "tools" / "gitimport.py").read_text()
+        self.assertNotIn("subprocess", py)
+        self.assertNotIn("git log", py)
+
+    def test_gogit_is_direct_go_mod_require(self) -> None:
+        text = (ROOT / "go.mod").read_text()
+        first = text.split("require (")[1].split(")")[0]
+        self.assertRegex(first, r"github.com/go-git/go-git/v5\s+v")
+        for line in first.splitlines():
+            if "go-git/go-git" in line:
+                self.assertNotIn("indirect", line)

bin/tools/test_gitgraph.py

@@ -9,12 +9,6 @@ sys.path.insert(0, str(Path(__file__).resolve().parent))
 import kblib  # noqa: E402
 import gitimport  # noqa: E402
 
-SAMPLE = (
-    "\x1e" + "a1b2c3d" + "\x1f" + "Ada Lovelace" + "\x1f" + "ada@example.com"
-    + "\x1f" + "2026-08-10T12:00:00+01:00" + "\x1f" + "feat: first commit"
-    + "\n\nREADME.md\nsrc/main.c\n"
-)
-
 COMMIT_PERSON_SCHEMA = (
     "CREATE NODE TABLE IF NOT EXISTS Commit (id STRING, repo STRING, subject STRING, "
     "author STRING, email STRING, date STRING, PRIMARY KEY(id))"
@@ -26,6 +20,17 @@ HAS_VERSION_SCHEMA = "CREATE REL TABLE IF NOT EXISTS HAS_VERSION (FROM File TO C
 AUTHORED_SCHEMA = "CREATE REL TABLE IF NOT EXISTS AUTHORED (FROM Commit TO Person)"
 
 
+def sample_commit() -> gitimport.Commit:
+    return gitimport.Commit(
+        sha="a1b2c3d",
+        author="Ada Lovelace",
+        email="ada@example.com",
+        date="2026-08-10T12:00:00+01:00",
+        subject="feat: first commit",
+        files=["README.md", "src/main.c"],
+    )
+
+
 class GitGraphTest(unittest.TestCase):
     def setUp(self):
         self.dir = tempfile.mkdtemp()
@@ -42,14 +47,12 @@ class GitGraphTest(unittest.TestCase):
         self.db.close()
 
     def test_index_commits_creates_nodes_and_edges(self):
-        cs = gitimport.parse_log(SAMPLE)
+        gitimport.index_commits(self.conn, [sample_commit()], "sample-repo")
-        gitimport.index_commits(self.conn, cs, "sample-repo")
         rp = self.conn.execute("MATCH (p:Person) RETURN p.name, p.email").get_all()
         self.assertEqual([tuple(r) for r in rp], [("Ada Lovelace", "ada@example.com")])
         rc = self.conn.execute("MATCH (c:Commit) RETURN c.id, c.repo").get_all()
         self.assertEqual(len(rc), 1)
         self.assertEqual(rc[0][1], "sample-repo")
-        # File -[:HAS_VERSION]-> Commit -[:AUTHORED]-> Person
         rf = self.conn.execute(
             "MATCH (f:File)-[:HAS_VERSION]->(c:Commit)-[:AUTHORED]->(p:Person) "
             "RETURN f.path, c.id, p.email").get_all()
@@ -58,7 +61,7 @@ class GitGraphTest(unittest.TestCase):
         self.assertTrue(all(r[2] == "ada@example.com" for r in rf))
 
     def test_index_commits_idempotent(self):
-        cs = gitimport.parse_log(SAMPLE)
+        cs = [sample_commit()]
         gitimport.index_commits(self.conn, cs, "sample-repo")
         gitimport.index_commits(self.conn, cs, "sample-repo")
         n = self.conn.execute("MATCH (c:Commit) RETURN count(*)").get_all()[0][0]
@@ -68,4 +71,4 @@ class GitGraphTest(unittest.TestCase):
 
 
 if __name__ == "__main__":
-    unittest.main()
+    unittest.main()

bin/tools/test_gitimport.py

@@ -1,57 +0,0 @@
-import sys
-import unittest
-from pathlib import Path
-
-sys.path.insert(0, str(Path(__file__).resolve().parent))
-
-import gitimport  # noqa: E402
-
-SAMPLE = (
-    "\x1e" + "a1b2c3d" + "\x1f" + "Ada Lovelace" + "\x1f" + "ada@example.com"
-    + "\x1f" + "2026-08-10T12:00:00+01:00" + "\x1f" + "feat: first commit"
-    + "\n\nREADME.md\nsrc/main.c\n"
-    + "\x1e" + "e4f5a6b" + "\x1f" + "Bob Babbage" + "\x1f" + "bob@example.com"
-    + "\x1f" + "2026-08-11T09:30:00+01:00" + "\x1f" + "fix: typo"
-    + "\n\ndocs/notes.md"
-)
-
-
-class GitparseTest(unittest.TestCase):
-    def test_parses_records(self):
-        cs = gitimport.parse_log(SAMPLE)
-        self.assertEqual(len(cs), 2)
-
-    def test_parses_commit_fields(self):
-        cs = gitimport.parse_log(SAMPLE)
-        c = cs[0]
-        self.assertEqual(c.sha, "a1b2c3d")
-        self.assertEqual(c.author, "Ada Lovelace")
-        self.assertEqual(c.email, "ada@example.com")
-        self.assertEqual(c.date, "2026-08-10T12:00:00+01:00")
-        self.assertEqual(c.subject, "feat: first commit")
-
-    def test_parses_changed_files(self):
-        cs = gitimport.parse_log(SAMPLE)
-        self.assertEqual(cs[0].files, ["README.md", "src/main.c"])
-        self.assertEqual(cs[1].files, ["docs/notes.md"])
-
-    def test_ignores_empty(self):
-        self.assertEqual(gitimport.parse_log(""), [])
-
-    def test_skip_malformed_record(self):
-        self.assertEqual(gitimport.parse_log("\x1eweird\x1e"), [])
-
-    def test_commit_leaf_shape(self):
-        leafs = gitimport.commits_to_leafs(gitimport.parse_log(SAMPLE), "sample-repo")
-        self.assertEqual(len(leafs), 2)
-        lf = leafs[0]
-        self.assertEqual(lf["type"], "commit")
-        self.assertEqual(lf["repo"], "sample-repo")
-        self.assertEqual(lf["source"], "sample-repo@a1b2c3d")
-        self.assertIn("Ada Lovelace", lf["text"])
-        self.assertIn("README.md", lf["related"])
-        self.assertIn("feat: first commit", lf["heading"])
-
-
-if __name__ == "__main__":
-    unittest.main()

bin/tools/test_mailleafs.py

@@ -0,0 +1,46 @@
+"""Mail markdown → leafs (no Ladybug). Brain index --with-mail uses this."""
+from __future__ import annotations
+
+import json
+import sys
+import tempfile
+import unittest
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parent))
+
+import mailleafs  # noqa: E402
+
+
+class MailLeafsTest(unittest.TestCase):
+    def test_message_md_becomes_info_leaf(self) -> None:
+        root = Path(tempfile.mkdtemp())
+        msg = root / "inbox" / "alice-1"
+        msg.mkdir(parents=True)
+        (msg / "message.json").write_text(
+            json.dumps({"receivedDate": "2026-01-15T10:00:00Z", "subject": "Hello"}),
+            encoding="utf-8",
+        )
+        (msg / "message.md").write_text(
+            "---\nroot: info\n---\n\n# Hello\n\nFrom Alice to Bob.\n",
+            encoding="utf-8",
+        )
+        leafs = mailleafs.from_mail_root(root)
+        self.assertEqual(len(leafs), 1)
+        self.assertIn("Alice", leafs[0]["text"])
+        self.assertTrue(leafs[0]["source"].startswith("ooMail:"))
+        self.assertEqual(leafs[0]["how"], "mail/import")
+
+    def test_since_filters_by_message_json_date(self) -> None:
+        root = Path(tempfile.mkdtemp())
+        for name, day in (("old", "2025-01-01"), ("new", "2026-06-01")):
+            d = root / "inbox" / name
+            d.mkdir(parents=True)
+            (d / "message.json").write_text(
+                json.dumps({"receivedDate": f"{day}T00:00:00Z"}),
+                encoding="utf-8",
+            )
+            (d / "message.md").write_text(f"# {name}\n\nbody\n", encoding="utf-8")
+        leafs = mailleafs.from_mail_root(root, since="2026-01-01")
+        self.assertEqual(len(leafs), 1)
+        self.assertIn("new", leafs[0]["text"])

bin/tools/test_published_docs.py

@@ -0,0 +1,84 @@
+"""Published docs must match live commands (Gitea SoT, brain/search, no fake --hop)."""
+from __future__ import annotations
+
+import re
+import unittest
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[2]
+
+
+class PublishedDocsTest(unittest.TestCase):
+    def test_readme_points_issues_at_gitea(self) -> None:
+        text = (ROOT / "README.md").read_text()
+        self.assertIn(
+            "https://git.produktor.io/eSlider/2dph/issues",
+            text,
+            "README must point issues at Gitea",
+        )
+
+    def test_plan_d15_names_gitea_origin(self) -> None:
+        text = (ROOT / "PLAN.md").read_text()
+        self.assertIn("D15", text)
+        self.assertIn("git.produktor.io/eSlider/2dph", text)
+
+    def test_readme_primary_search_is_brain(self) -> None:
+        text = (ROOT / "README.md").read_text()
+        self.assertIn(
+            "bin/brain/search.go",
+            text,
+            "README deduction search must name bin/brain/search.go",
+        )
+
+    def test_readme_index_is_brain_not_index_mail(self) -> None:
+        text = (ROOT / "README.md").read_text()
+        self.assertIn("bin/brain/index.go", text)
+        self.assertNotIn(
+            "bin/mail/index_mail",
+            text,
+            "mail index is a brain write; README must name bin/brain/index.go",
+        )
+
+    def test_readme_git_import_is_gogit(self) -> None:
+        text = (ROOT / "README.md").read_text()
+        self.assertIn("bin/git/import.go", text)
+        self.assertIn("go-git", text)
+        self.assertIn("D19", (ROOT / "PLAN.md").read_text())
+
+    def test_web_search_is_go_not_ops_host(self) -> None:
+        readme = (ROOT / "README.md").read_text()
+        self.assertIn("bin/web/search.go", readme)
+        skill = (ROOT / "skills" / "web-search" / "SKILL.md").read_text()
+        self.assertIn("bin/web/search.go", skill)
+        self.assertNotIn("search.ops.io", skill)
+        self.assertNotIn("search.ops.io", readme)
+        compose = (ROOT / "compose.yaml").read_text()
+        self.assertIn("searxng", compose)
+        self.assertNotIn("search.ops.io", compose)
+        settings = (ROOT / "deploy" / "searxng" / "settings.yml").read_text()
+        self.assertNotIn("password", settings.lower())
+        self.assertIn("json", settings)
+
+    def test_readme_search_escalates_web(self) -> None:
+        text = (ROOT / "README.md").read_text()
+        self.assertIn("--no-web", text)
+        self.assertIn("D17", (ROOT / "PLAN.md").read_text())
+        skill = (ROOT / "skills" / "brain" / "SKILL.md").read_text()
+        self.assertIn("`web` block", skill)
+
+    def test_docs_do_not_claim_hop_walks(self) -> None:
+        paths = [
+            ROOT / "README.md",
+            ROOT / "docs" / "design.md",
+            ROOT / "skills" / "brain" / "SKILL.md",
+            ROOT / "skills" / "diataxis-docs" / "SKILL.md",
+        ]
+        # Command-style `--hop 1` / `--hop N` plus follow/walk = the old lie.
+        # Honest "not implemented" notes must not match.
+        lie = re.compile(r"--hop (?:N|1).*(?:follow|walk)", re.I | re.S)
+        for path in paths:
+            text = path.read_text()
+            self.assertIsNone(
+                lie.search(text),
+                f"{path.relative_to(ROOT)} still claims --hop walks the graph",
+            )

bin/tools/test_skills_bin_paths.py

@@ -0,0 +1,33 @@
+"""Every bin/ path named in skills/ must exist on disk."""
+from __future__ import annotations
+
+import re
+import unittest
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[2]
+BIN_PATH = re.compile(r"\b(bin/[A-Za-z0-9_./-]+)")
+
+
+class SkillsBinPathsTest(unittest.TestCase):
+    def test_agent_cost_skill_is_gone(self) -> None:
+        self.assertFalse(
+            (ROOT / "skills" / "agent-cost").exists(),
+            "skills/agent-cost documents bin/agents/cost which does not exist",
+        )
+
+    def test_brain_skill_replaces_kb_search(self) -> None:
+        self.assertTrue((ROOT / "skills" / "brain" / "SKILL.md").is_file())
+        self.assertFalse((ROOT / "skills" / "kb-search").exists())
+
+    def test_skill_bin_paths_exist(self) -> None:
+        missing: list[str] = []
+        for skill in sorted((ROOT / "skills").rglob("SKILL.md")):
+            text = skill.read_text()
+            for match in BIN_PATH.findall(text):
+                rel = match.rstrip("`'.,")
+                if rel.endswith(".go") or Path(rel).suffix == "" or Path(rel).suffix in {".go", ".py"}:
+                    p = ROOT / rel
+                    if not p.exists():
+                        missing.append(f"{skill.relative_to(ROOT)}: {rel}")
+        self.assertEqual(missing, [], "SKILL.md names bin/ paths that do not exist")

bin/watch/watch.go

@@ -1,4 +1,4 @@
-// Package watch polls corpus directories for changes and re-runs bin/kb/index.
+// Package watch polls corpus directories for changes and re-runs brain/index.
 //
 // Port of the former bin/kb-watch bash script to an importable, testable Go
 // package. Polls file mtimes (no inotify deps); cheap and reliable.
@@ -18,8 +18,8 @@ import (
 type Options struct {
 	Dirs     []string
 	Interval time.Duration
-	// IndexCmd is the kb/index command template. %s is replaced by the repo
+	// IndexCmd is the index command template. %s is replaced by the repo
-	// root (from KB_ROOT). Defaults to `python3 <root>/bin/kb/index`.
+	// root (from KB_ROOT). Defaults to `python3 <root>/bin/kb/index --with-mail`.
 	IndexCmd string
 }
 
@@ -67,7 +67,7 @@ func fromEnv(args []string) Options {
 	if pys == "" {
 		pys = "python3"
 	}
-	opts.IndexCmd = pys + " <root>/bin/kb/index"
+	opts.IndexCmd = pys + " <root>/bin/kb/index --with-mail"
 	return opts
 }
 

bin/watch/watch_test.go

@@ -3,6 +3,7 @@ package watch
 import (
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
 	"time"
 )
@@ -43,7 +44,10 @@ func TestFromEnvDefaults(t *testing.T) {
 	if opts.Interval != 30*time.Second {
 		t.Fatalf("default interval = %s, want 30s", opts.Interval)
 	}
-	if opts.IndexCmd == "" {
+	if !strings.Contains(opts.IndexCmd, "kb/index") {
-		t.Fatal("default index cmd is empty")
+		t.Fatalf("default index cmd = %q, want kb/index", opts.IndexCmd)
+	}
+	if !strings.Contains(opts.IndexCmd, "--with-mail") {
+		t.Fatalf("default index cmd must include --with-mail, got %q", opts.IndexCmd)
 	}
 }

bin/web/search

@@ -1,150 +1,26 @@
 #!/usr/bin/env python3
-"""web/search - web search through the self-hosted SearXNG at search.ops.io.
+"""web/search — deprecated. Use bin/web/search.go (SearXNG, no Python client).
 
-  bin/web/search "LadybugDB vector search"
+  bin/web/search.go QUERY [--json] [-n N] [--site HOST]
-  bin/web/search "model2vec multilingual" --site github.com
-  bin/web/search "uclancy" --category it -n 3 --json | jq -r '.results[].url'
-  bin/web/search "sqlite-vec" --refresh          # ignore the cached answer
-
-This complements bin/kb/search: the knowledge base holds our own facts, this
-reaches the public web. Use it as the second, independent source that the
-detective method asks for.
-
-Exit codes: 0 results, 2 refused as possible PII, 3 throttled (not "nothing
-found" - the instance answers 200 with an empty list when it throttles).
 """
 from __future__ import annotations
 
-import argparse
-import fcntl
-import json
 import os
 import sys
-import time
-import urllib.parse
-import urllib.request
 from pathlib import Path
 
-TOOLS = Path(__file__).resolve().parents[1] / "tools"
+ROOT = Path(__file__).resolve().parents[2]
-sys.path.insert(0, str(TOOLS))
-sys.path.insert(0, str(TOOLS / "web-search"))
-
-import websearch as ws          # noqa: E402
-from yamlout import to_yaml     # noqa: E402
-
-CONFIG = Path(os.environ.get("BRAIN_SEARCH_ENV", Path.home() / ".config/brain/search.env"))
-CACHE = Path(os.environ.get("BRAIN_SEARCH_CACHE", Path.home() / ".cache/brain/web-search.sqlite"))
-LOCK = CACHE.with_suffix(".lock")
 
 
-def load_config() -> dict:
+def main(argv: list[str]) -> int:
-    if not CONFIG.exists():
+    print(
-        sys.exit(f"no credentials at {CONFIG} (mode 600, BRAIN_SEARCH_URL/USER/PASS)")
+        "bin/web/search is deprecated; use bin/web/search.go",
-    conf = {}
+        file=sys.stderr,
-    for line in CONFIG.read_text().splitlines():
+    )
-        line = line.strip()
+    target = ROOT / "bin" / "web" / "search.go"
-        if not line or line.startswith("#") or "=" not in line:
+    os.execvp("go", ["go", "run", str(target), *argv])
-            continue
+    return 1
-        key, _, value = line.partition("=")
-        conf[key.strip()] = value.strip().strip("\"'")
-    missing = {"BRAIN_SEARCH_URL", "BRAIN_SEARCH_USER", "BRAIN_SEARCH_PASS"} - conf.keys()
-    if missing:
-        sys.exit(f"{CONFIG} is missing {', '.join(sorted(missing))}")
-    return conf
-
-
-def fetch(conf: dict, query: str, params: dict, timeout: int) -> dict:
-    args = {"q": query, "format": "json", **params}
-    url = f"{conf['BRAIN_SEARCH_URL'].rstrip('/')}/search?{urllib.parse.urlencode(args)}"
-    request = urllib.request.Request(url)
-    token = f"{conf['BRAIN_SEARCH_USER']}:{conf['BRAIN_SEARCH_PASS']}".encode()
-    import base64
-    request.add_header("Authorization", "Basic " + base64.b64encode(token).decode())
-    with urllib.request.urlopen(request, timeout=timeout) as response:
-        return json.loads(response.read().decode())
-
-
-def main() -> int:
-    parser = argparse.ArgumentParser(description="web search via SearXNG")
-    parser.add_argument("query")
-    parser.add_argument("-n", "--limit", type=int, default=ws.DEFAULT_LIMIT)
-    parser.add_argument("--site", help="restrict to one domain")
-    parser.add_argument("--lang", help="language code, e.g. de")
-    parser.add_argument("--fresh", choices=["day", "week", "month", "year"],
-                        help="time range")
-    parser.add_argument("--category", help="SearXNG category, e.g. it, science, news")
-    parser.add_argument("--engines", help="comma separated engine list")
-    parser.add_argument("--json", action="store_true")
-    parser.add_argument("--refresh", action="store_true", help="bypass the cache")
-    parser.add_argument("--ttl", type=float, default=ws.CACHE_TTL)
-    parser.add_argument("--timeout", type=int, default=25)
-    parser.add_argument("--force", action="store_true",
-                        help="send even if the query looks like PII")
-    args = parser.parse_args()
-
-    query = f"site:{args.site} {args.query}" if args.site else args.query
-
-    reason = ws.phi_reason(query)
-    if reason and not args.force:
-        print(f"refused: {reason}. This query would leave the host.", file=sys.stderr)
-        print("Rephrase without identifiers, or pass --force if it is genuinely public.",
-              file=sys.stderr)
-        return 2
-
-    params = {}
-    if args.lang:
-        params["language"] = args.lang
-    if args.fresh:
-        params["time_range"] = args.fresh
-    if args.category:
-        params["categories"] = args.category
-    if args.engines:
-        params["engines"] = args.engines
-
-    key = ws.cache_key(query, params)
-    conn = ws.open_cache(CACHE)
-
-    if not args.refresh:
-        cached = ws.cache_get(conn, key, ttl=args.ttl)
-        if cached is not None:
-            out = ws.project(cached, limit=args.limit)
-            out["cached"] = True
-            sys.stdout.write(json.dumps(out, indent=2, ensure_ascii=False) + "\n"
-                             if args.json else to_yaml(out))
-            return 0
-
-    conf = load_config()
-    LOCK.parent.mkdir(parents=True, exist_ok=True)
-
-    # One request at a time across every agent on this host: the instance
-    # suspends engines for minutes when several of us ask at once.
-    with open(LOCK, "w") as lock:
-        fcntl.flock(lock, fcntl.LOCK_EX)
-
-        payload = None
-        for attempt in range(1 + len(ws.RETRY_BACKOFF)):
-            delay = ws.wait_for(ws.last_call(conn), time.time())
-            if delay:
-                time.sleep(delay)
-            ws.mark_call(conn)
-            try:
-                payload = fetch(conf, query, params, args.timeout)
-            except Exception as error:              # noqa: BLE001 - report, do not crash
-                print(f"request failed: {error}", file=sys.stderr)
-                return 3
-            if ws.classify(payload) == "ok":
-                break
-            if attempt < len(ws.RETRY_BACKOFF):
-                time.sleep(ws.RETRY_BACKOFF[attempt])
-
-    if ws.classify(payload) == "ok":
-        ws.cache_put(conn, key, payload)
-
-    out = ws.project(payload, limit=args.limit)
-    sys.stdout.write(json.dumps(out, indent=2, ensure_ascii=False) + "\n"
-                     if args.json else to_yaml(out))
-    return 0 if out["status"] == "ok" else 3
 
 
 if __name__ == "__main__":
-    sys.exit(main())
+    sys.exit(main(sys.argv[1:]))

bin/web/search.go

@@ -0,0 +1,232 @@
+//usr/bin/env go run "$0" "$@"; exit
+//
+// bin/web/search.go - SearXNG as the second independent source (D3).
+//
+//	./bin/web/search.go "LadybugDB vector search"
+//	./bin/web/search.go "model2vec" --category it --json
+//	./bin/web/search.go "postgres" --site github.com --fresh year
+//
+// Empty results mean throttled, not "nothing exists". Exit 2 = PII refuse, 3 = throttled.
+// Config: $BRAIN_SEARCH_ENV (default $HOME/.config/brain/search.env).
+// NOTE: never run `gofmt -w` on this file — it breaks the shebang.
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+	"strconv"
+	"time"
+
+	"github.com/eSlider/2dph/internal/websearch"
+	"golang.org/x/sys/unix"
+)
+
+func main() {
+	os.Exit(run(os.Args[1:]))
+}
+
+func run(args []string) int {
+	var (
+		query, site, lang, fresh, category, engines string
+		limit                                       = websearch.DefaultLimit
+		jsonOut, refresh, force                     bool
+		ttl                                         = float64(websearch.CacheTTL)
+		timeout                                     = 25
+	)
+	i := 0
+	for i < len(args) {
+		a := args[i]
+		switch {
+		case a == "--json":
+			jsonOut = true
+		case a == "--refresh":
+			refresh = true
+		case a == "--force":
+			force = true
+		case (a == "-n" || a == "--limit") && i+1 < len(args):
+			i++
+			n, err := strconv.Atoi(args[i])
+			if err != nil || n < 0 {
+				fmt.Fprintln(os.Stderr, "web/search: --limit must be a non-negative integer")
+				return 2
+			}
+			limit = n
+		case a == "--site" && i+1 < len(args):
+			i++
+			site = args[i]
+		case a == "--lang" && i+1 < len(args):
+			i++
+			lang = args[i]
+		case a == "--fresh" && i+1 < len(args):
+			i++
+			fresh = args[i]
+		case a == "--category" && i+1 < len(args):
+			i++
+			category = args[i]
+		case a == "--engines" && i+1 < len(args):
+			i++
+			engines = args[i]
+		case a == "--ttl" && i+1 < len(args):
+			i++
+			v, err := strconv.ParseFloat(args[i], 64)
+			if err != nil {
+				fmt.Fprintln(os.Stderr, "web/search: --ttl must be a number")
+				return 2
+			}
+			ttl = v
+		case a == "--timeout" && i+1 < len(args):
+			i++
+			n, err := strconv.Atoi(args[i])
+			if err != nil || n <= 0 {
+				fmt.Fprintln(os.Stderr, "web/search: --timeout must be a positive integer")
+				return 2
+			}
+			timeout = n
+		case a == "-h" || a == "--help":
+			fmt.Fprintln(os.Stderr, `usage: bin/web/search.go QUERY [--json] [-n N] [--site HOST] [--lang LANG] [--fresh day|week|month|year] [--category CAT] [--engines LIST] [--refresh] [--force]`)
+			return 0
+		case len(a) > 0 && a[0] != '-' && query == "":
+			query = a
+		default:
+			fmt.Fprintf(os.Stderr, "web/search: unknown flag %s\n", a)
+			return 2
+		}
+		i++
+	}
+	if query == "" {
+		fmt.Fprintln(os.Stderr, "web/search: query required")
+		return 2
+	}
+	if site != "" {
+		query = "site:" + site + " " + query
+	}
+	if reason := websearch.PHIReason(query); reason != "" && !force {
+		fmt.Fprintf(os.Stderr, "refused: %s. This query would leave the host.\n", reason)
+		fmt.Fprintln(os.Stderr, "Rephrase without identifiers, or pass --force if it is genuinely public.")
+		return 2
+	}
+
+	params := map[string]string{}
+	if lang != "" {
+		params["language"] = lang
+	}
+	if fresh != "" {
+		params["time_range"] = fresh
+	}
+	if category != "" {
+		params["categories"] = category
+	}
+	if engines != "" {
+		params["engines"] = engines
+	}
+
+	cachePath := os.Getenv("BRAIN_SEARCH_CACHE")
+	if cachePath == "" {
+		cachePath = os.Getenv("HOME") + "/.cache/brain/web-search.sqlite"
+	}
+	cache, err := websearch.OpenCache(cachePath)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "web/search: cache: %v\n", err)
+		return 1
+	}
+	defer cache.Close()
+
+	key := websearch.CacheKey(query, params)
+	now := float64(time.Now().Unix())
+	if !refresh {
+		if cached, err := cache.Get(key, ttl, now); err != nil {
+			fmt.Fprintf(os.Stderr, "web/search: cache: %v\n", err)
+			return 1
+		} else if cached != nil {
+			out := websearch.Project(*cached, limit, websearch.DefaultSnippetChars)
+			out.Cached = true
+			return writeOut(out, jsonOut)
+		}
+	}
+
+	envPath := os.Getenv("BRAIN_SEARCH_ENV")
+	if envPath == "" {
+		envPath = os.Getenv("HOME") + "/.config/brain/search.env"
+	}
+	conf, err := websearch.LoadConfig(envPath)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "web/search: %v\n", err)
+		return 1
+	}
+
+	lockPath := cachePath + ".lock"
+	lock, err := os.OpenFile(lockPath, os.O_CREATE|os.O_RDWR, 0o600)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "web/search: lock: %v\n", err)
+		return 1
+	}
+	defer lock.Close()
+	if err := unix.Flock(int(lock.Fd()), unix.LOCK_EX); err != nil {
+		fmt.Fprintf(os.Stderr, "web/search: lock: %v\n", err)
+		return 1
+	}
+	defer unix.Flock(int(lock.Fd()), unix.LOCK_UN)
+
+	var payload websearch.Payload
+	attempts := 1 + len(websearch.RetryBackoff)
+	client := &http.Client{}
+	for attempt := 0; attempt < attempts; attempt++ {
+		last, err := cache.LastCall()
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "web/search: cache: %v\n", err)
+			return 1
+		}
+		if delay := websearch.WaitFor(last, float64(time.Now().Unix()), websearch.MinInterval); delay > 0 {
+			time.Sleep(time.Duration(delay * float64(time.Second)))
+		}
+		if err := cache.MarkCall(float64(time.Now().Unix())); err != nil {
+			fmt.Fprintf(os.Stderr, "web/search: cache: %v\n", err)
+			return 1
+		}
+		payload, err = websearch.Fetch(client, conf, query, params, time.Duration(timeout)*time.Second)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "request failed: %v\n", err)
+			return 3
+		}
+		if websearch.Classify(payload) == websearch.StatusOK {
+			break
+		}
+		if attempt < len(websearch.RetryBackoff) {
+			time.Sleep(time.Duration(websearch.RetryBackoff[attempt] * float64(time.Second)))
+		}
+	}
+
+	if websearch.Classify(payload) == websearch.StatusOK {
+		if err := cache.Put(key, payload, float64(time.Now().Unix())); err != nil {
+			fmt.Fprintf(os.Stderr, "web/search: cache: %v\n", err)
+		}
+	}
+	out := websearch.Project(payload, limit, websearch.DefaultSnippetChars)
+	code := writeOut(out, jsonOut)
+	if out.Status != websearch.StatusOK && code == 0 {
+		return 3
+	}
+	return code
+}
+
+func writeOut(out websearch.Output, jsonOut bool) int {
+	if jsonOut {
+		enc := json.NewEncoder(os.Stdout)
+		enc.SetIndent("", "  ")
+		enc.SetEscapeHTML(false)
+		if err := enc.Encode(out); err != nil {
+			return 1
+		}
+		if out.Status != websearch.StatusOK {
+			return 3
+		}
+		return 0
+	}
+	fmt.Print(out.YAML())
+	if out.Status != websearch.StatusOK {
+		return 3
+	}
+	return 0
+}

compose.yaml

@@ -61,6 +61,21 @@ services:
     restart: unless-stopped
     stop_grace_period: 20s
 
+  # Optional local SearXNG (D3). Skip if BRAIN_SEARCH_URL already points at a
+  # live instance — do not run a second copy on that host.
+  #   SEARXNG_SECRET=$(openssl rand -hex 32) docker compose --profile searxng up -d
+  searxng:
+    profiles: ["searxng"]
+    image: docker.io/searxng/searxng:2026.8.10-0a118066d
+    ports:
+      - "127.0.0.1:8888:8080"
+    environment:
+      SEARXNG_SECRET: ${SEARXNG_SECRET:-}
+    volumes:
+      - ./deploy/searxng/settings.yml:/etc/searxng/settings.yml:ro
+      - ./deploy/searxng/limiter.toml:/etc/searxng/limiter.toml:ro
+    restart: unless-stopped
+
 volumes:
   kb-model:
   kb-var:

deploy/searxng/limiter.toml

@@ -0,0 +1,7 @@
+[botdetection.ip_lists]
+# RFC1918 only. Do not copy a live instance egress IP into git.
+pass_ip = [
+  "10.0.0.0/8",
+  "172.16.0.0/12",
+  "192.168.0.0/16",
+]

deploy/searxng/settings.yml

@@ -0,0 +1,28 @@
+use_default_settings: true
+
+general:
+  instance_name: "2dph"
+
+search:
+  formats:
+    - html
+    - json
+  suspended_times:
+    SearxEngineCaptcha: 300
+    SearxEngineTooManyRequests: 120
+    SearxEngineAccessDenied: 300
+
+server:
+  limiter: true
+  image_proxy: false
+  # secret_key comes from SEARXNG_SECRET (never commit a real secret)
+
+engines:
+  - name: bing
+    disabled: false
+  - name: google
+    disabled: false
+  - name: duckduckgo
+    disabled: false
+  - name: wikipedia
+    disabled: false

docs/README.md

@@ -6,5 +6,10 @@ Brain/ops/eSlider stack. Facts need proof or they are
 
 - [PLAN.md](../PLAN.md) — decisions, execution order, open questions (v2)
 - [design](design.md) — schema, deduction model, sources
+- [Gitea issues](https://git.produktor.io/eSlider/2dph/issues) — work board (origin)
 
-Published docs live here and mirror the project state.
+Search: `bin/brain/search.go "query"` (HTTP: `bin/brain/serve.go` —
+`/health` `/search` `/get` `/stats` `/audit` `/ingest`). `--hop` is
+not a walk; the flag errors until File/FROM_FILE edges exist.
+
+Published docs live here and mirror the project state.

docs/chat-import-plan.md

@@ -15,9 +15,10 @@ OO_CLI                     (default: $HOME/go/bin/oo)
 ## Quick reference
 
 ```
-./bin/chat sync telegram --limit 100
+./bin/chats/sync.go telegram --limit 100
-./bin/chat import
+./bin/chats/import.go
-./bin/chat index
+./bin/chats/facts.go
-./bin/chat facts
+./bin/chats/apply.go --dry-run
-./bin/chat apply --dry-run
 ```
+
+JSONL → markdown only. Brain ingest is `bin/brain/index.go` (not a `chats index`).

docs/design.md

@@ -17,14 +17,16 @@ as one consistent state.
 ## Deduction search
 
 ```
-bin/kb/search "question"
+bin/brain/search.go "question"
   1. facts root   — confirmed answers only   → return with evidence links
   2. info  root   — supporting narrative     → snippets, marked (not confirmed)
   3. web-search   — second independent source → upgrade hypothesis to confirmed
+     (`web` block from `bin/web/search.go` when no facts hit; status `throttled`
+     is not evidence of absence; `--no-web` / `--root` skip it)
 ```
 
-`--hop N` follows graph edges (sibling leaves under a heading, owning file,
+`--hop` is not implemented yet (needs File/FROM_FILE edges). The flag is an
-`related:` files, vector-neighbour leaves) — the deduction walk.
+error; it is not a graph walk.
 
 ## Who / What / How / Where / When + evidence
 
@@ -46,7 +48,8 @@ Every assertion edge carries:
 Content leafs: `sha256`, `observed_at`, `source_rev`, `confidence`. Stale = a
 file changed on disk (git HEAD/mtime) after its last observed `source_rev`.
 `File-[:HAS_VERSION]->Commit-[:AUTHORED]->Person` records the history of every
-content leaf.
+content leaf. Commit records come from `bin/git/import.go` (go-git, no git
+binary); conversion prints leafs, brain write is `bin/brain/index.go`.
 
 `bin/facts/audit stale` flags leafs whose observed revision is behind the
 corpus HEAD.

go.mod

@@ -1,8 +1,52 @@
 module github.com/eSlider/2dph
 
-go 1.25.0
+go 1.26
 
 require (
+	github.com/LadybugDB/go-ladybug v0.17.0
 	github.com/arran4/golang-ical v0.3.5
+	github.com/chewxy/math32 v1.11.2
+	github.com/daulet/tokenizers v1.27.0
+	github.com/go-git/go-git/v5 v5.19.2
+	golang.org/x/sys v0.47.0
 	golang.org/x/text v0.40.0
+	modernc.org/sqlite v1.56.0
+)
+
+require (
+	dario.cat/mergo v1.0.0 // indirect
+	github.com/Microsoft/go-winio v0.6.2 // indirect
+	github.com/ProtonMail/go-crypto v1.1.6 // indirect
+	github.com/apache/arrow-go/v18 v18.6.0 // indirect
+	github.com/cloudflare/circl v1.6.3 // indirect
+	github.com/cyphar/filepath-securejoin v0.6.1 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/emirpasic/gods v1.18.1 // indirect
+	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
+	github.com/go-git/go-billy/v5 v5.9.0 // indirect
+	github.com/goccy/go-json v0.10.6 // indirect
+	github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 // indirect
+	github.com/google/flatbuffers v25.12.19+incompatible // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
+	github.com/kevinburke/ssh_config v1.2.0 // indirect
+	github.com/klauspost/compress v1.18.5 // indirect
+	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
+	github.com/mattn/go-isatty v0.0.24 // indirect
+	github.com/ncruces/go-strftime v1.0.0 // indirect
+	github.com/pierrec/lz4/v4 v4.1.26 // indirect
+	github.com/pjbgf/sha1cd v0.6.0 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 // indirect
+	github.com/shopspring/decimal v1.4.0 // indirect
+	github.com/skeema/knownhosts v1.3.1 // indirect
+	github.com/xanzy/ssh-agent v0.3.3 // indirect
+	github.com/zeebo/xxh3 v1.1.0 // indirect
+	golang.org/x/crypto v0.53.0 // indirect
+	golang.org/x/exp v0.0.0-20260410095643-746e56fc9e2f // indirect
+	golang.org/x/net v0.56.0 // indirect
+	gopkg.in/warnings.v0 v0.1.2 // indirect
+	modernc.org/libc v1.74.4 // indirect
+	modernc.org/mathutil v1.7.1 // indirect
+	modernc.org/memory v1.11.0 // indirect
 )

go.sum

@@ -1,14 +1,184 @@
+dario.cat/mergo v1.0.0 h1:AGCNq9Evsj31mOgNPcLyXc+4PNABt905YmuqPYYpBWk=
+dario.cat/mergo v1.0.0/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
+github.com/LadybugDB/go-ladybug v0.17.0 h1:RXDbkBjrbRmLdEbhGl4CLOIEzSt09gbP0n9UbKDEfwI=
+github.com/LadybugDB/go-ladybug v0.17.0/go.mod h1:GeIXmE8XyF5TFS94NAuTag7vgCC+no/HTBMRA6Rd5Cs=
+github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY=
+github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
+github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
+github.com/ProtonMail/go-crypto v1.1.6 h1:ZcV+Ropw6Qn0AX9brlQLAUXfqLBc7Bl+f/DmNxpLfdw=
+github.com/ProtonMail/go-crypto v1.1.6/go.mod h1:rA3QumHc/FZ8pAHreoekgiAbzpNsfQAosU5td4SnOrE=
+github.com/andybalholm/brotli v1.2.1 h1:R+f5xP285VArJDRgowrfb9DqL18yVK0gKAW/F+eTWro=
+github.com/andybalholm/brotli v1.2.1/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
+github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be h1:9AeTilPcZAjCFIImctFaOjnTIavg87rW78vTPkQqLI8=
+github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be/go.mod h1:ySMOLuWl6zY27l47sB3qLNK6tF2fkHG55UZxx8oIVo4=
+github.com/apache/arrow-go/v18 v18.6.0 h1:GX/Jyd3R7mCLiECAwY9FWbbaYblie2WXBSz4Sw8fNpM=
+github.com/apache/arrow-go/v18 v18.6.0/go.mod h1:gm3MiPpY82fLYK5VKPB3WoJbsiLVDfT7flD5/vHReKw=
+github.com/apache/thrift v0.22.0 h1:r7mTJdj51TMDe6RtcmNdQxgn9XcyfGDOzegMDRg47uc=
+github.com/apache/thrift v0.22.0/go.mod h1:1e7J/O1Ae6ZQMTYdy9xa3w9k+XHWPfRvdPyJeynQ+/g=
+github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=
+github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
 github.com/arran4/golang-ical v0.3.5 h1:bbz6ld4dC+MmCKiFfOd6SkmIGnhNMBACZ485ULh7p9A=
 github.com/arran4/golang-ical v0.3.5/go.mod h1:OnguFgjN0Hmx8jzpmWcC+AkHio94ujmLHKoaef7xQh8=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/chewxy/math32 v1.11.2 h1:IufN08Zwr1NKuWfY+4Tz55BcwKmyKKNdOP7KtumehnM=
+github.com/chewxy/math32 v1.11.2/go.mod h1:dOB2rcuFrCn6UHrze36WSLVPKtzPMRAQvBvUwkSsLqs=
+github.com/cloudflare/circl v1.6.3 h1:9GPOhQGF9MCYUeXyMYlqTR6a5gTrgR/fBLXvUgtVcg8=
+github.com/cloudflare/circl v1.6.3/go.mod h1:2eXP6Qfat4O/Yhh8BznvKnJ+uzEoTQ6jVKJRn81BiS4=
+github.com/cyphar/filepath-securejoin v0.6.1 h1:5CeZ1jPXEiYt3+Z6zqprSAgSWiggmpVyciv8syjIpVE=
+github.com/cyphar/filepath-securejoin v0.6.1/go.mod h1:A8hd4EnAeyujCJRrICiOWqjS1AX0a9kM5XL+NwKoYSc=
+github.com/daulet/tokenizers v1.27.0 h1:MmFYAEDFz69s/nNQfHg59DWqHz3v94m99kEZ/JbL+s4=
+github.com/daulet/tokenizers v1.27.0/go.mod h1:YjFY1o1HGMyWkQgbXJDghhvke/yFDp2vGdIO2hYs4MQ=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/elazarl/goproxy v1.7.2 h1:Y2o6urb7Eule09PjlhQRGNsqRfPmYI3KKQLFpCAV3+o=
+github.com/elazarl/goproxy v1.7.2/go.mod h1:82vkLNir0ALaW14Rc399OTTjyNREgmdL2cVoIbS6XaE=
+github.com/emirpasic/gods v1.18.1 h1:FXtiHYKDGKCW2KzwZKx0iC0PQmdlorYgdFG9jPXJ1Bc=
+github.com/emirpasic/gods v1.18.1/go.mod h1:8tpGGwCnJ5H4r6BWwaV6OrWmMoPhUl5jm/FMNAnJvWQ=
+github.com/gliderlabs/ssh v0.3.8 h1:a4YXD1V7xMF9g5nTkdfnja3Sxy1PVDCj1Zg4Wb8vY6c=
+github.com/gliderlabs/ssh v0.3.8/go.mod h1:xYoytBv1sV0aL3CavoDuJIQNURXkkfPA/wxQ1pL1fAU=
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+modernc.org/memory v1.11.0/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw=
+modernc.org/opt v0.2.0 h1:tGyef5ApycA7FSEOMraay9SaTk5zmbx7Tu+cJs4QKZg=
+modernc.org/opt v0.2.0/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
+modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w=
+modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE=
+modernc.org/sqlite v1.56.0 h1:/D8e2RfFqoy/Zc6PuC76U28zFwmI/sYx1Kjm4yEn9e0=
+modernc.org/sqlite v1.56.0/go.mod h1:yCJ2cmAaIkHQ25oXWrF8H4O1lIfPYPR26yCEDj2P3pQ=
+modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0=
+modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A=
+modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
+modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=

go.work

@@ -0,0 +1,3 @@
+go 1.26
+
+use .

internal/brain/db.go

@@ -1,10 +1,12 @@
-// Brain connection management using go-ladybug.
+//go:build cgo && system_ladybug
-package main
+
+package brain
 
 import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"strings"
 
 	lbug "github.com/LadybugDB/go-ladybug"
 )
@@ -44,10 +46,10 @@ func dbPath() string {
 }
 
 func openBrain() error {
-	return openWithOpts(2, eps())
+	return openWithSandbox(eps())
 }
 
-func openWithOpts(allow int, epsv string) error {
+func openWithSandbox(epsv string) error {
 	cfg := lbug.DefaultSystemConfig()
 	cfg.MaxNumThreads = 8
 	cfg.BufferPoolSize = 1 << 30 // 1GB
@@ -57,20 +59,30 @@ func openWithOpts(allow int, epsv string) error {
 	if err != nil {
 		return fmt.Errorf("OpenDatabase: %w", err)
 	}
-	if epsv != "" {
-		if _, err := conn.Query("SET STREAM_SANDBOX = '" + epsv + "'"); err != nil {
-			return err
-		}
-	}
 
 	conn, err = lbug.OpenConnection(db)
 	if err != nil {
+		closeBrain()
 		return fmt.Errorf("OpenConnection: %w", err)
 	}
+	// Session settings need a live connection; running this before
+	// OpenConnection dereferenced a nil *Connection.
+	if epsv != "" {
+		if strings.ContainsAny(epsv, "'\\") {
+			closeBrain()
+			return fmt.Errorf("SET STREAM_SANDBOX: invalid value")
+		}
+		if _, err := conn.Query("SET STREAM_SANDBOX = '" + epsv + "'"); err != nil {
+			closeBrain()
+			return fmt.Errorf("SET STREAM_SANDBOX: %w", err)
+		}
+	}
 	if _, err := conn.Query("LOAD EXTENSION FTS"); err != nil {
+		closeBrain()
 		return fmt.Errorf("LOAD EXTENSION FTS: %w", err)
 	}
 	if _, err := conn.Query("LOAD EXTENSION VECTOR"); err != nil {
+		closeBrain()
 		return fmt.Errorf("LOAD EXTENSION VECTOR: %w", err)
 	}
 	return nil
@@ -85,4 +97,4 @@ func closeBrain() {
 		db.Close()
 		db = nil
 	}
-}
+}

internal/brain/doc.go

@@ -0,0 +1,3 @@
+// Package brain is deduction search over Ladybug (FTS + HNSW).
+// Query/embed code that needs cgo lives behind the system_ladybug tag.
+package brain

internal/brain/http.go

@@ -0,0 +1,159 @@
+//go:build cgo && system_ladybug
+
+package brain
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+
+	"github.com/eSlider/2dph/internal/brain/rank"
+)
+
+// Ready opens the Ladybug file for the life of the serve process.
+func Ready() error {
+	return openBrain()
+}
+
+// HTTP is the in-process API used by bin/brain/serve.go.
+type HTTP struct{}
+
+func (HTTP) Search(ctx context.Context, query string, limit int) ([]byte, error) {
+	hits, err := searchHits(query, "", "", limit)
+	if err != nil {
+		return nil, err
+	}
+	for i := range hits {
+		if hits[i].Text != "" {
+			runes := []rune(hits[i].Text)
+			if len(runes) > 280 {
+				runes = runes[:280]
+			}
+			hits[i].Snippet = string(runes)
+		}
+	}
+	webOut := rank.Deduce(hits, query, "", false, func(q string) rank.SecondSource {
+		return lookupWeb(ctx, q)
+	})
+	var buf bytes.Buffer
+	enc := json.NewEncoder(&buf)
+	enc.SetEscapeHTML(false)
+	if err := enc.Encode(toJSONOut(hits, query, "", webOut)); err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
+func (HTTP) Get(_ context.Context, id string, body bool) ([]byte, error) {
+	if conn == nil {
+		return nil, fmt.Errorf("brain not open")
+	}
+	stmt, err := conn.Prepare(
+		"MATCH (l:Leaf {id:$id}) RETURN l.id, l.text, l.root, l.confidence, l.source, l.type",
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer stmt.Close()
+	res, err := conn.Execute(stmt, map[string]any{"id": id})
+	if err != nil {
+		return nil, err
+	}
+	if !res.HasNext() {
+		return nil, fmt.Errorf("no leaf %s", id)
+	}
+	row, err := res.Next()
+	if err != nil {
+		return nil, err
+	}
+	vals, err := row.GetAsSlice()
+	if err != nil || len(vals) < 6 {
+		return nil, fmt.Errorf("leaf row")
+	}
+	out := map[string]any{
+		"id":         fmt.Sprint(vals[0]),
+		"root":       fmt.Sprint(vals[2]),
+		"confidence": fmt.Sprint(vals[3]),
+		"source":     fmt.Sprint(vals[4]),
+		"type":       fmt.Sprint(vals[5]),
+	}
+	if body {
+		out["text"] = fmt.Sprint(vals[1])
+	}
+	return json.Marshal(out)
+}
+
+func (HTTP) Stats(context.Context) ([]byte, error) {
+	if conn == nil {
+		return nil, fmt.Errorf("brain not open")
+	}
+	res, err := conn.Query("MATCH (l:Leaf) RETURN l.root, count(*)")
+	if err != nil {
+		return nil, err
+	}
+	byRoot := map[string]int{}
+	total := 0
+	for res.HasNext() {
+		row, err := res.Next()
+		if err != nil {
+			return nil, err
+		}
+		vals, err := row.GetAsSlice()
+		if err != nil || len(vals) < 2 {
+			continue
+		}
+		n := int(asInt(vals[1]))
+		byRoot[fmt.Sprint(vals[0])] = n
+		total += n
+	}
+	return json.Marshal(map[string]any{"total": total, "by_root": byRoot, "db": dbPath()})
+}
+
+func (HTTP) Audit(context.Context) ([]byte, error) {
+	if conn == nil {
+		return nil, fmt.Errorf("brain not open")
+	}
+	res, err := conn.Query("MATCH (l:Leaf) RETURN l.root, l.confidence, count(*)")
+	if err != nil {
+		return nil, err
+	}
+	var rows []map[string]any
+	for res.HasNext() {
+		row, err := res.Next()
+		if err != nil {
+			return nil, err
+		}
+		vals, err := row.GetAsSlice()
+		if err != nil || len(vals) < 3 {
+			continue
+		}
+		rows = append(rows, map[string]any{
+			"root":       fmt.Sprint(vals[0]),
+			"confidence": fmt.Sprint(vals[1]),
+			"count":      asInt(vals[2]),
+		})
+	}
+	return json.Marshal(map[string]any{"status": "ok", "by_confidence": rows})
+}
+
+func (HTTP) Ingest(context.Context) ([]byte, error) {
+	return json.Marshal(map[string]any{
+		"mode":    "rebuild",
+		"command": "bin/brain/index.go --rebuild",
+		"add":     "v2",
+	})
+}
+
+func asInt(v any) int64 {
+	switch n := v.(type) {
+	case int64:
+		return n
+	case int:
+		return int64(n)
+	case float64:
+		return int64(n)
+	default:
+		return 0
+	}
+}

internal/brain/model.go

@@ -1,9 +1,11 @@
+//go:build cgo && system_ladybug
+
 // StaticModel wraps the potion-multilingual-128m embedding model.
 //
 // Mirrors model2vec.StaticModel: tokenizer (daulet Unigram) + safetensors matrix.
 // Embed(text) applies the same preprocessing: median_token_length pre-truncation,
 // add_special_tokens=false, drop unk (id=1), truncate to 512, mean pool, L2 normalize +1e-32.
-package main
+package brain
 
 import (
 	"encoding/json"

internal/brain/modeldir.go

@@ -1,5 +1,4 @@
-// modelDir returns the resolved potion-multilingual-128m model directory.
+package brain
-package main
 
 import (
 	"fmt"

internal/brain/rank/args.go

@@ -0,0 +1,75 @@
+package rank
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+const Usage = `usage: bin/brain/search.go "query" [--root facts|info] [--repo REPO] [-n N] [--json] [--no-web]
+       bin/brain/search.go serve [port]
+       bin/brain/search.go --list-model`
+
+type Options struct {
+	Query     string
+	Root      string
+	Repo      string
+	Limit     int
+	JSONOut   bool
+	ListModel bool
+	NoWeb     bool
+}
+
+// ParseArgs reads flags. Unknown flags are an error: silently dropping them
+// meant `--hop 1` vanished and its argument `1` was appended to the query.
+// --hop is recognised so it cannot be swallowed; it is not implemented until
+// File/FROM_FILE edges exist.
+func ParseArgs(args []string) (Options, error) {
+	opt := Options{Limit: 20}
+	var queryArgs []string
+
+	for i := 0; i < len(args); i++ {
+		arg := args[i]
+		wantsValue := arg == "--root" || arg == "--repo" || arg == "-n" || arg == "--hop"
+		if wantsValue && i+1 >= len(args) {
+			return opt, fmt.Errorf("%s needs a value", arg)
+		}
+		switch arg {
+		case "--root":
+			i++
+			opt.Root = args[i]
+			if opt.Root != "facts" && opt.Root != "info" {
+				return opt, fmt.Errorf("--root must be facts or info, got %q", opt.Root)
+			}
+		case "--repo":
+			i++
+			opt.Repo = args[i]
+		case "-n":
+			i++
+			n, err := strconv.Atoi(args[i])
+			if err != nil || n < 1 {
+				return opt, fmt.Errorf("-n must be a positive integer, got %q", args[i])
+			}
+			opt.Limit = n
+		case "--hop":
+			return opt, fmt.Errorf("--hop is not implemented yet (needs File/FROM_FILE edges)")
+		case "--json":
+			opt.JSONOut = true
+		case "--no-web":
+			opt.NoWeb = true
+		case "--list-model":
+			opt.ListModel = true
+		default:
+			if strings.HasPrefix(arg, "-") {
+				return opt, fmt.Errorf("unknown flag %q", arg)
+			}
+			queryArgs = append(queryArgs, arg)
+		}
+	}
+
+	opt.Query = strings.TrimSpace(strings.Join(queryArgs, " "))
+	if opt.Query == "" && !opt.ListModel {
+		return opt, fmt.Errorf("no query given")
+	}
+	return opt, nil
+}

internal/brain/rank/escalate.go

@@ -0,0 +1,43 @@
+package rank
+
+// SecondSource is the web-search block on a deduction answer.
+// Kept apart from graph hits so "ours" and "not ours" stay visible.
+type SecondSource struct {
+	Status  string            `json:"status"`
+	Note    string            `json:"note,omitempty"`
+	Cached  bool              `json:"cached,omitempty"`
+	Results []SecondSourceHit `json:"results,omitempty"`
+}
+
+type SecondSourceHit struct {
+	Rank    int    `json:"rank"`
+	Title   string `json:"title"`
+	URL     string `json:"url"`
+	Snippet string `json:"snippet"`
+	Engine  string `json:"engine"`
+}
+
+type WebFn func(query string) SecondSource
+
+// ShouldEscalate is true when the default deduction path has no facts hit.
+// `--root facts|info` is a single-root ask: do not mix in the web.
+func ShouldEscalate(hits []Hit, rootFilter string) bool {
+	if rootFilter != "" {
+		return false
+	}
+	for _, h := range hits {
+		if h.Root == "facts" {
+			return false
+		}
+	}
+	return true
+}
+
+// Deduce returns the second-source block, or nil when web must not run.
+func Deduce(hits []Hit, query, rootFilter string, noWeb bool, web WebFn) *SecondSource {
+	if noWeb || web == nil || !ShouldEscalate(hits, rootFilter) {
+		return nil
+	}
+	out := web(query)
+	return &out
+}

internal/brain/rank/escalate_test.go

@@ -0,0 +1,78 @@
+package rank
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestShouldEscalateWhenNoFacts(t *testing.T) {
+	if !ShouldEscalate(nil, "") {
+		t.Fatal("empty local graph must escalate")
+	}
+	if !ShouldEscalate([]Hit{h("i", "info", "docs/a.md")}, "") {
+		t.Fatal("info-only must escalate (not confirmed)")
+	}
+}
+
+func TestShouldNotEscalateWhenFactsConfirm(t *testing.T) {
+	hits := []Hit{h("f", "facts", "docker ps x compose"), h("i", "info", "docs/a.md")}
+	if ShouldEscalate(hits, "") {
+		t.Fatal("facts hit is already confirmed; do not mix web")
+	}
+}
+
+func TestShouldNotEscalateWhenRootFilterSet(t *testing.T) {
+	if ShouldEscalate(nil, "facts") {
+		t.Fatal("--root facts must stay local")
+	}
+	if ShouldEscalate([]Hit{h("i", "info", "x")}, "info") {
+		t.Fatal("--root info must stay local")
+	}
+}
+
+func TestDeduceCallsWebOnlyWhenEscalating(t *testing.T) {
+	called := 0
+	web := func(q string) SecondSource {
+		called++
+		if q != "LadybugDB" {
+			t.Fatalf("query = %q", q)
+		}
+		return SecondSource{Status: "ok", Results: []SecondSourceHit{{Title: "t", URL: "http://example.com"}}}
+	}
+	got := Deduce([]Hit{h("i", "info", "x")}, "LadybugDB", "", false, web)
+	if called != 1 || got == nil || got.Status != "ok" {
+		t.Fatalf("got %+v called=%d", got, called)
+	}
+}
+
+func TestDeduceNilWhenFactsOrNoWeb(t *testing.T) {
+	web := func(string) SecondSource {
+		t.Fatal("web must not run")
+		return SecondSource{}
+	}
+	if Deduce([]Hit{h("f", "facts", "x")}, "q", "", false, web) != nil {
+		t.Fatal("facts")
+	}
+	if Deduce([]Hit{h("i", "info", "x")}, "q", "", true, web) != nil {
+		t.Fatal("--no-web")
+	}
+	if Deduce(nil, "q", "facts", false, web) != nil {
+		t.Fatal("--root facts")
+	}
+	if Deduce(nil, "q", "", false, nil) != nil {
+		t.Fatal("nil web fn")
+	}
+}
+
+func TestParseNoWeb(t *testing.T) {
+	opt, err := ParseArgs([]string{"query", "--no-web", "--json"})
+	if err != nil || !opt.NoWeb || !opt.JSONOut || opt.Query != "query" {
+		t.Fatalf("got %+v err=%v", opt, err)
+	}
+}
+
+func TestUsageNamesNoWeb(t *testing.T) {
+	if !strings.Contains(Usage, "--no-web") {
+		t.Fatalf("usage must name --no-web, got:\n%s", Usage)
+	}
+}

internal/brain/rank/query.go

@@ -0,0 +1,9 @@
+package rank
+
+// BM25 ranks best-first, so the top hits are the *highest* scores; cosine
+// distance ranks best-first ascending. Both mirror kblib.py.
+const FTSStmt = "CALL QUERY_FTS_INDEX('Leaf', 'id', $q) " +
+	"RETURN node.id, node.text, node.root, node.source, score ORDER BY score DESC LIMIT $n"
+
+const VecStmt = "CALL QUERY_VECTOR_INDEX('Leaf', 'Leaf_vec', $q, $n) " +
+	"RETURN node.id, node.text, node.root, node.source, distance ORDER BY distance LIMIT $n"

internal/brain/rank/rank.go

@@ -0,0 +1,100 @@
+// Package rank is the cgo-free ranking and CLI parsing for brain search.
+// CI can `go test ./rank` without the native ladybug library.
+package rank
+
+import (
+	"sort"
+	"strings"
+)
+
+// Hit is one search result, mirroring the python script's dict shape.
+type Hit struct {
+	ID      string  `json:"id"`
+	Text    string  `json:"text"`
+	Root    string  `json:"root"`
+	Source  string  `json:"-"`
+	Score   float64 `json:"score"`
+	Snippet string  `json:"snippet,omitempty"`
+}
+
+// rrfK dampens the contribution of low ranks; same constant as kblib.py.
+const rrfK = 60
+
+// RankAndFilter fuses the two hit lists, applies --root/--repo, then cuts to
+// limit. Cutting first dropped every matching leaf ranked below the cut, so
+// `--root facts` came back empty whenever info leafs filled the top N.
+// limit <= 0 keeps everything.
+func RankAndFilter(fts, vec []Hit, root, repo string, limit int) []Hit {
+	out := Hybrid(fts, vec, 0)
+	if root != "" {
+		out = FilterRoot(out, root)
+	}
+	if repo != "" {
+		out = FilterRepo(out, repo)
+	}
+	if limit > 0 && len(out) > limit {
+		out = out[:limit]
+	}
+	return out
+}
+
+// Hybrid merges FTS and vector hits by reciprocal rank fusion.
+// limit <= 0 returns the full fused list.
+func Hybrid(fts, vec []Hit, limit int) []Hit {
+	byID := make(map[string]Hit, len(fts)+len(vec))
+	rrf := make(map[string]float64, len(fts)+len(vec))
+
+	for i, h := range fts {
+		byID[h.ID] = h
+		rrf[h.ID] += 1.0 / (rrfK + float64(i+1))
+	}
+	for i, h := range vec {
+		if existing, ok := byID[h.ID]; !ok {
+			byID[h.ID] = h
+		} else if existing.Score == 0 {
+			existing.Score = h.Score
+			byID[h.ID] = existing
+		}
+		rrf[h.ID] += 1.0 / (rrfK + float64(i+1))
+	}
+
+	ids := make([]string, 0, len(rrf))
+	for id := range rrf {
+		ids = append(ids, id)
+	}
+	sort.Slice(ids, func(i, j int) bool {
+		if rrf[ids[i]] != rrf[ids[j]] {
+			return rrf[ids[i]] > rrf[ids[j]]
+		}
+		return ids[i] < ids[j]
+	})
+	if limit > 0 && len(ids) > limit {
+		ids = ids[:limit]
+	}
+
+	out := make([]Hit, 0, len(ids))
+	for _, id := range ids {
+		out = append(out, byID[id])
+	}
+	return out
+}
+
+func FilterRoot(hits []Hit, root string) []Hit {
+	var out []Hit
+	for _, h := range hits {
+		if h.Root == root {
+			out = append(out, h)
+		}
+	}
+	return out
+}
+
+func FilterRepo(hits []Hit, repo string) []Hit {
+	var out []Hit
+	for _, h := range hits {
+		if strings.Contains(h.Source, repo) {
+			out = append(out, h)
+		}
+	}
+	return out
+}

internal/brain/rank/rank_test.go

@@ -0,0 +1,149 @@
+// Unit tests for ranking/filtering and CLI parsing (no db, no model, offline).
+package rank
+
+import (
+	"strings"
+	"testing"
+)
+
+func h(id, root, source string) Hit {
+	return Hit{ID: id, Text: id, Root: root, Source: source}
+}
+
+func ids(hits []Hit) []string {
+	out := make([]string, len(hits))
+	for i, hit := range hits {
+		out[i] = hit.ID
+	}
+	return out
+}
+
+func eq(t *testing.T, got []Hit, want ...string) {
+	t.Helper()
+	g := ids(got)
+	if len(g) != len(want) {
+		t.Fatalf("got %v, want %v", g, want)
+	}
+	for i := range want {
+		if g[i] != want[i] {
+			t.Fatalf("got %v, want %v", g, want)
+		}
+	}
+}
+
+// A facts leaf that ranks below the limit in the unfiltered list must still
+// be returned for --root facts. Filtering after truncation loses it.
+func TestRankAndFilterFiltersBeforeLimit(t *testing.T) {
+	fts := []Hit{
+		h("i1", "info", "docs/a.md"),
+		h("i2", "info", "docs/b.md"),
+		h("i3", "info", "docs/c.md"),
+		h("f1", "facts", "docker ps x compose"),
+	}
+	eq(t, RankAndFilter(fts, nil, "facts", "", 2), "f1")
+}
+
+func TestRankAndFilterRepoFiltersBeforeLimit(t *testing.T) {
+	fts := []Hit{
+		h("a", "info", "eSlider/2dph:README.md"),
+		h("b", "info", "eSlider/2dph:PLAN.md"),
+		h("c", "info", "eSlider/ops:compose.yaml"),
+	}
+	eq(t, RankAndFilter(fts, nil, "", "ops", 2), "c")
+}
+
+func TestRankAndFilterTruncatesToLimit(t *testing.T) {
+	fts := []Hit{h("a", "info", "x"), h("b", "info", "x"), h("c", "info", "x")}
+	eq(t, RankAndFilter(fts, nil, "", "", 2), "a", "b")
+}
+
+func TestRankAndFilterLimitZeroKeepsAll(t *testing.T) {
+	fts := []Hit{h("a", "info", "x"), h("b", "info", "x")}
+	eq(t, RankAndFilter(fts, nil, "", "", 0), "a", "b")
+}
+
+func TestHybridFusesBothRetrievers(t *testing.T) {
+	fts := []Hit{h("only-fts", "info", "x"), h("both", "info", "x")}
+	vec := []Hit{h("only-vec", "info", "x"), h("both", "info", "x")}
+	eq(t, Hybrid(fts, vec, 0), "both", "only-fts", "only-vec")
+}
+
+func TestHybridTiesAreDeterministic(t *testing.T) {
+	fts := []Hit{h("b", "info", "x"), h("a", "info", "x")}
+	first := ids(Hybrid(fts, nil, 0))
+	for i := 0; i < 50; i++ {
+		got := ids(Hybrid(fts, nil, 0))
+		for j := range first {
+			if got[j] != first[j] {
+				t.Fatalf("unstable order: %v then %v", first, got)
+			}
+		}
+	}
+}
+
+func TestHybridKeepsVectorScoreForSharedHit(t *testing.T) {
+	fts := []Hit{{ID: "x", Root: "info", Score: 0}}
+	vec := []Hit{{ID: "x", Root: "info", Score: 0.87}}
+	got := Hybrid(fts, vec, 0)
+	if len(got) != 1 || got[0].Score != 0.87 {
+		t.Fatalf("got %+v, want score 0.87", got)
+	}
+}
+
+// The old parser dropped unknown flags and appended their arguments to the
+// query, so `search "q" --hop 1` searched for "q 1". --hop is not implemented
+// here (needs File edges); it must still fail closed instead of changing q.
+func TestParseHopIsNotSwallowedIntoTheQuery(t *testing.T) {
+	_, err := ParseArgs([]string{"what runs on arc-2", "--hop", "1"})
+	if err == nil {
+		t.Fatal("expected --hop to error (not implemented), not be swallowed")
+	}
+	if !strings.Contains(err.Error(), "--hop") {
+		t.Fatalf("error should name --hop, got %v", err)
+	}
+}
+
+func TestParseRejectsUnknownFlags(t *testing.T) {
+	if _, err := ParseArgs([]string{"query", "--nope"}); err == nil {
+		t.Fatal("unknown flag accepted")
+	}
+}
+
+func TestParseRejectsBadValues(t *testing.T) {
+	for _, args := range [][]string{
+		{"q", "-n", "zero"},
+		{"q", "-n", "0"},
+		{"q", "--root", "nonsense"},
+		{"q", "--hop"},
+		{"--json"},
+	} {
+		if _, err := ParseArgs(args); err == nil {
+			t.Errorf("accepted %v", args)
+		}
+	}
+}
+
+func TestParseDefaults(t *testing.T) {
+	opt, err := ParseArgs([]string{"two", "words", "--json"})
+	if err != nil || opt.Query != "two words" || opt.Limit != 20 || !opt.JSONOut {
+		t.Fatalf("got %+v err=%v", opt, err)
+	}
+}
+
+func TestListModelNeedsNoQuery(t *testing.T) {
+	if _, err := ParseArgs([]string{"--list-model"}); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+}
+
+func TestUsageNamesBrainSearch(t *testing.T) {
+	if !strings.Contains(Usage, "bin/brain/search.go") {
+		t.Fatalf("usage must name bin/brain/search.go, got:\n%s", Usage)
+	}
+}
+
+func TestFTSQueryOrdersByScoreDescending(t *testing.T) {
+	if !strings.Contains(FTSStmt, "ORDER BY score DESC") {
+		t.Fatalf("FTS query must order by score DESC, got:\n%s", FTSStmt)
+	}
+}

internal/brain/search.go

@@ -1,5 +1,6 @@
-// Hybrid FTS + vector search implementation, plus daemon client/server.
+//go:build cgo && system_ladybug
-package main
+
+package brain
 
 import (
 	"bytes"
@@ -13,12 +14,12 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
-	"sort"
 	"strconv"
-	"strings"
+	"syscall"
 	"time"
 
 	lbug "github.com/LadybugDB/go-ladybug"
+	"github.com/eSlider/2dph/internal/brain/rank"
 )
 
 const defaultPort = 17830
@@ -26,45 +27,15 @@ const daemonPath = "/embed"
 const healthPath = "/health"
 
 func runSearch(args []string) int {
-	// Manual flag parsing to allow flags after query (like Python argparse)
+	opt, err := rank.ParseArgs(args)
-	root := ""
+	if err != nil {
-	repo := ""
+		fmt.Fprintf(os.Stderr, "brain/search: %v\n%s\n", err, rank.Usage)
-	limit := 20
+		return 2
-	jsonOut := false
-	listModel := false
-
-	var queryArgs []string
-	for i := 0; i < len(args); i++ {
-		switch args[i] {
-		case "--root":
-			if i+1 < len(args) {
-				root = args[i+1]
-				i++
-			}
-		case "--repo":
-			if i+1 < len(args) {
-				repo = args[i+1]
-				i++
-			}
-		case "-n":
-			if i+1 < len(args) {
-				if n, err := strconv.Atoi(args[i+1]); err == nil {
-					limit = n
-				}
-				i++
-			}
-		case "--json":
-			jsonOut = true
-		case "--list-model":
-			listModel = true
-		default:
-			if !strings.HasPrefix(args[i], "-") {
-				queryArgs = append(queryArgs, args[i])
-			}
-		}
 	}
+	root, repo, limit, query := opt.Root, opt.Repo, opt.Limit, opt.Query
+	jsonOut := opt.JSONOut
 
-	if listModel {
+	if opt.ListModel {
 		dir, err := modelDir()
 		if err != nil {
 			fmt.Fprintln(os.Stderr, err)
@@ -74,47 +45,19 @@ func runSearch(args []string) int {
 		return 0
 	}
 
-	query := strings.TrimSpace(strings.Join(queryArgs, " "))
-	if query == "" {
-		fmt.Fprintln(os.Stderr, "usage: kbsearch \"query\" [--root facts|info] [--repo REPO] [-n N] [--json]")
-		return 1
-	}
-
 	if err := openBrain(); err != nil {
 		fmt.Fprintf(os.Stderr, "open brain: %v\n", err)
 		return 1
 	}
 	defer closeBrain()
 
-	emb, err := embedQuery(query)
+	hits, err := searchHits(query, root, repo, limit)
 	if err != nil {
-		fmt.Fprintf(os.Stderr, "embed: %v\n", err)
+		fmt.Fprintf(os.Stderr, "search: %v\n", err)
 		return 1
 	}
 
-	fts, err := queryFTS(query, limit*3)
+	results := hits
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "fts: %v\n", err)
-		return 1
-	}
-
-	var vec []Hit
-	if vec, err = queryVector(emb, limit*3); err != nil {
-		fmt.Fprintf(os.Stderr, "vec: %v\n", err)
-	}
-
-	results := hybrid(fts, vec, limit)
-
-	if root != "" {
-		results = filterRoot(results, root)
-	}
-	if repo != "" {
-		results = filterRepo(results, repo)
-	}
-	if len(results) > limit {
-		results = results[:limit]
-	}
-
 	for i := range results {
 		if results[i].Text != "" {
 			runes := []rune(results[i].Text)
@@ -125,23 +68,46 @@ func runSearch(args []string) int {
 		}
 	}
 
+	webOut := rank.Deduce(results, query, root, opt.NoWeb, func(q string) rank.SecondSource {
+		return lookupWeb(context.Background(), q)
+	})
+
 	out := Dict{
 		{"query", query},
 		{"root_filter", root},
 		{"count", len(results)},
 		{"results", resultsToDicts(results)},
 	}
+	if webOut != nil {
+		out = append(out, KV{"web", secondToDict(*webOut)})
+	}
 
 	if jsonOut {
 		enc := json.NewEncoder(os.Stdout)
 		enc.SetIndent("", "  ")
 		enc.SetEscapeHTML(false)
-		return b2i(enc.Encode(toJSONOut(results, query, root)))
+		return b2i(enc.Encode(toJSONOut(results, query, root, webOut)))
 	}
 	fmt.Print(toYAML(out, 0))
 	return 0
 }
 
+func searchHits(query, root, repo string, limit int) ([]Hit, error) {
+	emb, err := embedQuery(query)
+	if err != nil {
+		return nil, fmt.Errorf("embed: %w", err)
+	}
+	fts, err := queryFTS(query, limit*3)
+	if err != nil {
+		return nil, fmt.Errorf("fts: %w", err)
+	}
+	var vec []Hit
+	if vec, err = queryVector(emb, limit*3); err != nil {
+		fmt.Fprintf(os.Stderr, "vec: %v\n", err)
+	}
+	return rank.RankAndFilter(fts, vec, root, repo, limit), nil
+}
+
 func b2i(err error) int {
 	if err != nil {
 		return 1
@@ -150,10 +116,7 @@ func b2i(err error) int {
 }
 
 func queryFTS(text string, limit int) ([]Hit, error) {
-	stmt, err := conn.Prepare(
+	stmt, err := conn.Prepare(rank.FTSStmt)
-		"CALL QUERY_FTS_INDEX('Leaf', 'id', $q) " +
-			"RETURN node.id, node.text, node.root, node.source, score ORDER BY score LIMIT $n",
-	)
 	if err != nil {
 		return nil, err
 	}
@@ -170,10 +133,7 @@ func queryVector(emb []float64, limit int) ([]Hit, error) {
 	for i, v := range emb {
 		embList[i] = v
 	}
-	stmt, err := conn.Prepare(
+	stmt, err := conn.Prepare(rank.VecStmt)
-		"CALL QUERY_VECTOR_INDEX('Leaf', 'Leaf_vec', $q, $n) " +
-			"RETURN node.id, node.text, node.root, node.source, distance ORDER BY distance LIMIT $n",
-	)
 	if err != nil {
 		return nil, err
 	}
@@ -215,10 +175,11 @@ func rowsToHits(res *lbug.QueryResult) ([]Hit, error) {
 
 // JSON output types
 type jsonOut struct {
-	Query      string     `json:"query"`
+	Query      string             `json:"query"`
-	RootFilter string     `json:"root_filter"`
+	RootFilter string             `json:"root_filter"`
-	Count      int        `json:"count"`
+	Count      int                `json:"count"`
-	Results    []jsonHit  `json:"results"`
+	Results    []jsonHit          `json:"results"`
+	Web        *rank.SecondSource `json:"web,omitempty"`
 }
 
 type jsonHit struct {
@@ -229,7 +190,7 @@ type jsonHit struct {
 	Snippet string  `json:"snippet,omitempty"`
 }
 
-func toJSONOut(hits []Hit, query, rootFilter string) *jsonOut {
+func toJSONOut(hits []Hit, query, rootFilter string, web *rank.SecondSource) *jsonOut {
 	out := make([]jsonHit, len(hits))
 	for i, h := range hits {
 		out[i] = jsonHit{
@@ -245,73 +206,10 @@ func toJSONOut(hits []Hit, query, rootFilter string) *jsonOut {
 		RootFilter: rootFilter,
 		Count:      len(hits),
 		Results:    out,
+		Web:        web,
 	}
 }
 
-func hybrid(fts, vec []Hit, limit int) []Hit {
-	byID := make(map[string]Hit)
-	rrf := make(map[string]float64)
-
-	for rank, h := range fts {
-		byID[h.ID] = h
-		rrf[h.ID] += 1.0 / (60 + float64(rank+1))
-	}
-	for rank, h := range vec {
-		if _, ok := byID[h.ID]; !ok {
-			byID[h.ID] = h
-		} else {
-			existing := byID[h.ID]
-			if existing.Score == 0 {
-				existing.Score = h.Score
-				byID[h.ID] = existing
-			}
-		}
-		rrf[h.ID] += 1.0 / (60 + float64(rank+1))
-	}
-
-	type scored struct {
-		id  string
-		rrf float64
-	}
-	var scoredList []scored
-	for id, v := range rrf {
-		scoredList = append(scoredList, scored{id, v})
-	}
-	sort.Slice(scoredList, func(i, j int) bool {
-		return scoredList[i].rrf > scoredList[j].rrf
-	})
-
-	var out []Hit
-	for i, s := range scoredList {
-		if i >= limit {
-			break
-		}
-		h := byID[s.id]
-		out = append(out, h)
-	}
-	return out
-}
-
-func filterRoot(hits []Hit, root string) []Hit {
-	var out []Hit
-	for _, h := range hits {
-		if h.Root == root {
-			out = append(out, h)
-		}
-	}
-	return out
-}
-
-func filterRepo(hits []Hit, repo string) []Hit {
-	var out []Hit
-	for _, h := range hits {
-		if strings.Contains(h.Source, repo) {
-			out = append(out, h)
-		}
-	}
-	return out
-}
-
 func resultsToDicts(hits []Hit) []any {
 	out := make([]any, len(hits))
 	for i, h := range hits {
@@ -363,7 +261,7 @@ func serve(port int) error {
 	})
 
 	addr := fmt.Sprintf("127.0.0.1:%d", port)
-	log.Printf("kbsearch daemon listening on %s", addr)
+	log.Printf("brain search daemon listening on %s", addr)
 	return http.ListenAndServe(addr, mux)
 }
 
@@ -382,10 +280,16 @@ func embedQuery(text string) ([]float64, error) {
 			port = p
 		}
 	}
-	emb, err := tryDaemon(text, port)
+	if emb, err := tryDaemon(text, port); err == nil {
-	if err == nil {
 		return emb, nil
 	}
+	if os.Getenv("KBSEARCH_NO_DAEMON") == "" {
+		if err := ensureDaemon(port); err == nil {
+			if emb, err := tryDaemon(text, port); err == nil {
+				return emb, nil
+			}
+		}
+	}
 
 	model, err := loadModel()
 	if err != nil {
@@ -447,9 +351,13 @@ func ensureDaemon(port int) error {
 	cmd.Dir, _ = filepath.Split(self)
 	cmd.Stdout = nil
 	cmd.Stderr = nil
+	cmd.SysProcAttr = &syscall.SysProcAttr{Setsid: true}
 	if err := cmd.Start(); err != nil {
 		return err
 	}
+	if cmd.Process != nil {
+		_ = cmd.Process.Release()
+	}
 
 	for i := 0; i < 40; i++ {
 		time.Sleep(250 * time.Millisecond)
@@ -462,4 +370,22 @@ func ensureDaemon(port int) error {
 		}
 	}
 	return fmt.Errorf("daemon failed to start on port %d", port)
-}
+}
+
+// Main is the bin/brain/search.go entry: search, serve, or --list-model.
+func Main(args []string) int {
+	if len(args) > 0 && args[0] == "serve" {
+		port := defaultPort
+		if len(args) > 1 {
+			if p, err := strconv.Atoi(args[1]); err == nil {
+				port = p
+			}
+		}
+		if err := serve(port); err != nil {
+			log.Printf("brain/search serve: %v", err)
+			return 1
+		}
+		return 0
+	}
+	return runSearch(args)
+}

internal/brain/types.go

@@ -0,0 +1,13 @@
+package brain
+
+import (
+	"os"
+
+	"github.com/eSlider/2dph/internal/brain/rank"
+)
+
+func eps() string { return os.Getenv("KBTEST_EPS") }
+
+// Hit is the search hit type; ranking lives in package rank so CI can test
+// it without the native ladybug library.
+type Hit = rank.Hit

internal/brain/web.go

@@ -0,0 +1,56 @@
+package brain
+
+import (
+	"context"
+
+	"github.com/eSlider/2dph/internal/brain/rank"
+	"github.com/eSlider/2dph/internal/websearch"
+)
+
+func lookupWeb(ctx context.Context, query string) rank.SecondSource {
+	o := websearch.Lookup(ctx, query, websearch.LookupOpt{Limit: 5})
+	return toSecond(o)
+}
+
+func toSecond(o websearch.Output) rank.SecondSource {
+	hits := make([]rank.SecondSourceHit, 0, len(o.Results))
+	for _, h := range o.Results {
+		hits = append(hits, rank.SecondSourceHit{
+			Rank:    h.Rank,
+			Title:   h.Title,
+			URL:     h.URL,
+			Snippet: h.Snippet,
+			Engine:  h.Engine,
+		})
+	}
+	return rank.SecondSource{
+		Status:  o.Status,
+		Note:    o.Note,
+		Cached:  o.Cached,
+		Results: hits,
+	}
+}
+
+func secondToDict(w rank.SecondSource) Dict {
+	d := Dict{
+		{"status", w.Status},
+	}
+	if w.Note != "" {
+		d = append(d, KV{"note", w.Note})
+	}
+	if w.Cached {
+		d = append(d, KV{"cached", true})
+	}
+	rows := make([]any, 0, len(w.Results))
+	for _, h := range w.Results {
+		rows = append(rows, Dict{
+			{"rank", h.Rank},
+			{"title", h.Title},
+			{"url", h.URL},
+			{"snippet", h.Snippet},
+			{"engine", h.Engine},
+		})
+	}
+	d = append(d, KV{"results", rows})
+	return d
+}

internal/brain/yaml.go

@@ -1,5 +1,5 @@
 // YAML emitter ported from bin/kb/yamlout.py — preserves insertion order.
-package main
+package brain
 
 import (
 	"fmt"

internal/chats/apply.go

@@ -1,4 +1,4 @@
-package main
+package chats
 
 import (
 	"bytes"
@@ -24,7 +24,7 @@ type ooContact struct {
 	} `json:"commonData"`
 }
 
-func runApply(args []string) int {
+func RunApply(args []string) int {
 	fs := flag.NewFlagSet("chats apply", flag.ContinueOnError)
 	dryRun := fs.Bool("dry-run", false, "show what would be done without writing")
 	help := fs.Bool("help", false, "")
@@ -176,7 +176,7 @@ func runApply(args []string) int {
 }
 
 func loadFacts() ([]ExtractedFact, error) {
-	factsPath := filepath.Join(chatsDir(), "facts", "chat-facts.json")
+	factsPath := filepath.Join(Dir(), "facts", "chat-facts.json")
 	data, err := os.ReadFile(factsPath)
 	if err != nil {
 		if os.IsNotExist(err) {

internal/chats/chats_test.go

@@ -3,7 +3,7 @@
 // These are integration tests using real data and real Telegram API (when
 // credentials are available). They follow the TDD workflow pattern:
 // sync → import → facts → verify.
-package main
+package chats
 
 import (
 	"encoding/json"
@@ -48,7 +48,7 @@ func TestChatsImport(t *testing.T) {
 	t.Cleanup(func() { os.Chdir(cwd) })
 	t.Setenv("KB_ROOT", dir)
 
-	exitCode := runImport([]string{})
+	exitCode := RunImport([]string{})
 	if exitCode != 0 {
 		t.Fatalf("import exit code %d", exitCode)
 	}
@@ -140,7 +140,7 @@ func TestChatsImportEmpty(t *testing.T) {
 	t.Cleanup(func() { os.Chdir(cwd) })
 	t.Setenv("KB_ROOT", dir)
 
-	exitCode := runImport([]string{})
+	exitCode := RunImport([]string{})
 	if exitCode == 0 {
 		t.Fatal("expected non-zero exit for empty data dir")
 	}
@@ -171,7 +171,7 @@ func TestChatsRoundTrip(t *testing.T) {
 	t.Cleanup(func() { os.Chdir(cwd) })
 	t.Setenv("KB_ROOT", dir)
 
-	if code := runImport([]string{}); code != 0 {
+	if code := RunImport([]string{}); code != 0 {
 		t.Fatalf("import exit %d", code)
 	}
 

internal/chats/facts.go

@@ -1,13 +1,11 @@
-package main
+package chats
 
 import (
 	"bufio"
-	"bytes"
 	"encoding/json"
 	"flag"
 	"fmt"
 	"os"
-	"os/exec"
 	"path/filepath"
 	"regexp"
 	"strings"
@@ -77,7 +75,7 @@ type ExtractedFact struct {
 	MessageID string `json:"message_id"`
 }
 
-func runFacts(args []string) int {
+func RunFacts(args []string) int {
 	fs := flag.NewFlagSet("chats facts", flag.ContinueOnError)
 	help := fs.Bool("help", false, "")
 	fs.SetOutput(os.Stderr)
@@ -89,7 +87,7 @@ func runFacts(args []string) int {
 		return 0
 	}
 
-	root := chatsDir()
+	root := Dir()
 	telegramDir := filepath.Join(root, "telegram")
 
 	entries, err := os.ReadDir(telegramDir)
@@ -149,7 +147,7 @@ func runFacts(args []string) int {
 	}
 	fmt.Printf("chats facts: saved to %s\n", factsPath)
 
-	writeFactsToBrain(root, allFacts)
+	writeFactsMarkdown(allFacts)
 
 	return 0
 }
@@ -273,14 +271,10 @@ func filterFacts(facts []ExtractedFact, factType string) []ExtractedFact {
 	return result
 }
 
-func writeFactsToBrain(root string, facts []ExtractedFact) {
+// writeFactsMarkdown stores a sidecar for humans. Brain ingest is
-	indexScript := filepath.Join(root, "bin", "kb", "index")
+// bin/brain/index.go (not this subject).
-	if _, err := os.Stat(indexScript); os.IsNotExist(err) {
+func writeFactsMarkdown(facts []ExtractedFact) {
-		fmt.Fprintf(os.Stderr, "chats facts: kb/index not found, skipping brain write\n")
+	mdDir := filepath.Join(Dir(), "facts")
-		return
-	}
-
-	mdDir := filepath.Join(chatsDir(), "facts")
 	if err := os.MkdirAll(mdDir, 0755); err != nil {
 		fmt.Fprintf(os.Stderr, "chats facts: mkdir %s: %v\n", mdDir, err)
 		return
@@ -288,7 +282,7 @@ func writeFactsToBrain(root string, facts []ExtractedFact) {
 
 	var sb strings.Builder
 	sb.WriteString("---\n")
-	sb.WriteString("root: facts\n")
+	sb.WriteString("root: info\n")
 	sb.WriteString("---\n\n")
 	sb.WriteString("# Chat-Derived Facts\n\n")
 	for _, f := range facts {
@@ -302,15 +296,5 @@ func writeFactsToBrain(root string, facts []ExtractedFact) {
 		fmt.Fprintf(os.Stderr, "chats facts: write %s: %v\n", factsMD, err)
 		return
 	}
-
+	fmt.Printf("chats facts: markdown %s (index via brain, not chats)\n", factsMD)
-	cmd := exec.Command(indexScript, "--corpus", mdDir, "--skip-indexes")
-	var outBuf, errBuf bytes.Buffer
-	cmd.Stdout = &outBuf
-	cmd.Stderr = &errBuf
-	cmd.Dir = root
-	if err := cmd.Run(); err != nil {
-		fmt.Fprintf(os.Stderr, "chats facts: brain index: %v\n%s", err, errBuf.String())
-		return
-	}
-	fmt.Printf("chats facts: written to brain (%s)\n", strings.TrimSpace(outBuf.String()))
 }

internal/chats/import.go

@@ -1,4 +1,4 @@
-package main
+package chats
 
 import (
 	"bufio"
@@ -13,7 +13,7 @@ import (
 	"strings"
 )
 
-func runImport(args []string) int {
+func RunImport(args []string) int {
 	fs := flag.NewFlagSet("chats import", flag.ContinueOnError)
 	help := fs.Bool("help", false, "")
 	fs.SetOutput(os.Stderr)
@@ -25,7 +25,7 @@ func runImport(args []string) int {
 		return 0
 	}
 
-	root := chatsDir()
+	root := Dir()
 	mdRoot := filepath.Join(root, "md")
 	glob := filepath.Join(root, "telegram", "*", "messages.jsonl")
 

internal/chats/linkedin.go

@@ -0,0 +1,669 @@
+package chats
+
+import (
+	"bufio"
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"time"
+)
+
+type LinkedInMCPSource struct {
+	userDataDir string
+	limit       int
+}
+
+type lnInboxItem struct {
+	ThreadID         string `json:"thread_id"`
+	Participants     string `json:"participants"`
+	LastMessage      string `json:"last_message"`
+	LastMessageDate  string `json:"last_message_date"`
+	Unread           bool   `json:"unread"`
+}
+
+// mcp-server-linkedin v4.22 returns get_inbox / get_conversation as
+// {url, sections:{inbox|conversation: textblob}, references:{...}}.
+// The conversation list lives in references (kind=conversation); messages live
+// in the sections text blob, delimited by "<From> sent the following message
+// at <time>" markers. See testdata/linkedin_*.json for the wire shape.
+
+type lnEnvelope struct {
+	URL        string          `json:"url"`
+	Sections   map[string]any  `json:"sections"`
+	References map[string]any  `json:"references"`
+}
+
+type lnReference struct {
+	Kind    string `json:"kind"`
+	URL     string `json:"url"`
+	Text    string `json:"text"`
+	Context string `json:"context"`
+}
+
+type lnMessage struct {
+	From string `json:"from"`
+	Date string `json:"date"`
+	Text string `json:"text"`
+}
+
+var (
+	lnWeekdays = map[string]time.Weekday{
+		"SUNDAY": time.Sunday, "MONDAY": time.Monday, "TUESDAY": time.Tuesday,
+		"WEDNESDAY": time.Wednesday, "THURSDAY": time.Thursday,
+		"FRIDAY": time.Friday, "SATURDAY": time.Saturday,
+	}
+	lnMsgStartRe = regexp.MustCompile(`^(.+?) sent the following messages? at (.+)$`)
+	lnTimeRe     = regexp.MustCompile(`\d{1,2}:\d{2}\s*[AP]M`)
+)
+
+func isWeekdayLine(s string) bool {
+	if _, ok := lnWeekdays[s]; ok {
+		return true
+	}
+	switch s {
+	case "TODAY", "YESTERDAY", "THIS WEEK", "LAST WEEK":
+		return true
+	}
+	return lnMonthDayRe.MatchString(s)
+}
+
+var lnMonthDayRe = regexp.MustCompile(`^[A-Z]{3}\s+\d{1,2}$`)
+
+// parseLinkedInInbox extracts conversations from a get_inbox response.
+func parseLinkedInInbox(text string) []lnInboxItem {
+	var env lnEnvelope
+	if err := json.Unmarshal([]byte(text), &env); err != nil {
+		return nil
+	}
+	refs, _ := env.References["inbox"].([]any)
+	var items []lnInboxItem
+	for _, r := range refs {
+		rr, ok := r.(map[string]any)
+		if !ok {
+			continue
+		}
+		if rr["kind"] != "conversation" {
+			continue
+		}
+		u, _ := rr["url"].(string)
+		tid := threadIDFromURL(u)
+		if !validThreadID(tid) {
+			continue
+		}
+		name, _ := rr["text"].(string)
+		items = append(items, lnInboxItem{
+			ThreadID:     tid,
+			Participants: name,
+		})
+	}
+	return items
+}
+
+// parseLinkedInConversation parses the sections.conversation text blob into
+// messages. Messages are delimited by "<From> sent the following message(s) at
+// <time>" lines; each message body runs until the next marker. Day headers
+// (all-caps weekdays) provide date context; times are mapped to the most
+// recent matching weekday.
+func parseLinkedInConversation(text string) []lnMessage {
+	var env lnEnvelope
+	if err := json.Unmarshal([]byte(text), &env); err != nil {
+		return nil
+	}
+	blob, _ := env.Sections["conversation"].(string)
+	if blob == "" {
+		return nil
+	}
+
+	var msgs []lnMessage
+	var cur *lnMessage
+	var body []string
+	day := ""
+
+	flush := func() {
+		if cur == nil {
+			return
+		}
+		cur.Text = strings.TrimSpace(strings.Join(body, "\n"))
+		if ts := linkedInTimestamp(day, cur.Date); ts != "" {
+			cur.Date = ts
+		}
+		if cur.Text != "" {
+			msgs = append(msgs, *cur)
+		}
+		cur = nil
+		body = nil
+	}
+
+	for _, raw := range strings.Split(blob, "\n") {
+		line := strings.TrimSpace(raw)
+		if line == "" {
+			continue
+		}
+		if isWeekdayLine(line) {
+			if line != day {
+				// A new day header terminates the previous message,
+				// which must keep the earlier date context.
+				flush()
+			}
+			day = line
+			continue
+		}
+		if m := lnMsgStartRe.FindStringSubmatch(line); m != nil {
+			flush()
+			cur = &lnMessage{From: strings.TrimSpace(m[1]), Date: strings.TrimSpace(m[2])}
+			continue
+		}
+		if cur == nil {
+			continue
+		}
+		// Skip "View X's profile" and the "<From> (pronouns) <time>" header.
+		if strings.HasPrefix(line, "View ") && strings.HasSuffix(line, "'s profile") {
+			continue
+		}
+		if strings.HasPrefix(line, cur.From) && lnTimeRe.MatchString(line) {
+			continue
+		}
+		body = append(body, line)
+	}
+	flush()
+	return msgs
+}
+
+// linkedInTimestamp maps a weekday, relative, or MON DD date header + clock
+// string to a timestamp, or returns "" when the clock cannot be parsed.
+func linkedInTimestamp(day, clock string) string {
+	t, err := time.Parse("3:04 PM", clock)
+	if err != nil {
+		return ""
+	}
+	now := time.Now()
+	var d time.Time
+	if wd, ok := lnWeekdays[day]; ok {
+		diff := (int(now.Weekday()) - int(wd) + 7) % 7
+		d = now.AddDate(0, 0, -diff)
+	} else {
+		switch day {
+		case "TODAY":
+			d = now
+		case "YESTERDAY":
+			d = now.AddDate(0, 0, -1)
+		case "THIS WEEK":
+			diff := int(now.Weekday())
+			d = now.AddDate(0, 0, -diff)
+		case "LAST WEEK":
+			diff := int(now.Weekday()) + 7
+			d = now.AddDate(0, 0, -diff)
+		default:
+			if m := lnMonthDayRe.FindStringSubmatch(day); m != nil {
+				// MON DD without a year: resolve to the most recent
+				// occurrence that is not in the future.
+				d = monthDayDate(day, now)
+				if d.IsZero() {
+					return t.Format("15:04")
+				}
+			} else {
+				// No date context; keep bare clock time.
+				return t.Format("15:04")
+			}
+		}
+	}
+	res := time.Date(d.Year(), d.Month(), d.Day(), t.Hour(), t.Minute(), 0, 0, time.UTC)
+	return res.UTC().Format(time.RFC3339)
+}
+
+var lnMonths = map[string]time.Month{
+	"JAN": time.January, "FEB": time.February, "MAR": time.March,
+	"APR": time.April, "MAY": time.May, "JUN": time.June,
+	"JUL": time.July, "AUG": time.August, "SEP": time.September,
+	"OCT": time.October, "NOV": time.November, "DEC": time.December,
+}
+
+// monthDayDate resolves "MON DD" to the most recent occurrence of that date,
+// preferring the current year and falling back to the previous year when the
+// date is in the future. Returns zero time when unresolvable.
+func monthDayDate(day string, now time.Time) time.Time {
+	parts := strings.Fields(day)
+	if len(parts) != 2 {
+		return time.Time{}
+	}
+	mo, ok := lnMonths[parts[0]]
+	if !ok {
+		return time.Time{}
+	}
+	var dd int
+	if _, err := fmt.Sscanf(parts[1], "%d", &dd); err != nil {
+		return time.Time{}
+	}
+	if dd < 1 || dd > 31 {
+		return time.Time{}
+	}
+	d := time.Date(now.Year(), mo, dd, 0, 0, 0, 0, time.UTC)
+	if d.After(now) {
+		d = d.AddDate(-1, 0, 0)
+	}
+	if d.After(now) {
+		return time.Time{}
+	}
+	return d
+}
+
+func threadIDFromURL(u string) string {
+	u = strings.TrimSuffix(u, "/")
+	idx := strings.LastIndex(u, "/")
+	if idx < 0 {
+		return ""
+	}
+	return u[idx+1:]
+}
+
+// validThreadID rejects path segments that are not real thread ids (e.g. the
+// literal "thread" or an empty trailing segment).
+func validThreadID(id string) bool {
+	if id == "" || id == "thread" {
+		return false
+	}
+	return true
+}
+
+func NewLinkedInMCPSource(userDataDir string) *LinkedInMCPSource {
+	return &LinkedInMCPSource{userDataDir: userDataDir}
+}
+
+func (s *LinkedInMCPSource) Name() string { return "linkedin" }
+
+func (s *LinkedInMCPSource) Sync(ctx context.Context, outDir string, limit int) error {
+	if limit > 0 {
+		s.limit = limit
+	}
+
+	// getConversation fetches one thread, recreating the MCP server when it
+	// wedges. A single 429 makes mcp-server-linkedin close its browser and
+	// refuse every later call ("still has a browser open"), so a broken server
+	// must be restarted rather than hammered.
+	getConversation := func(threadID string) ([]lnMessage, error) {
+		client, err := newLinkedInMCP(ctx, s.userDataDir)
+		if err != nil {
+			return nil, fmt.Errorf("linkedin mcp: %w", err)
+		}
+		defer client.Close()
+		msgs, err := client.GetConversation(ctx, "", threadID, msgLimitFor(s.limit))
+		if err != nil && wedged(err) {
+			fmt.Fprintf(os.Stderr, "chats: %s: server wedged, restarting broker\n", threadID)
+			time.Sleep(5 * time.Second)
+			client2, cerr := newLinkedInMCP(ctx, s.userDataDir)
+			if cerr == nil {
+				defer client2.Close()
+				msgs, err = client2.GetConversation(ctx, "", threadID, msgLimitFor(s.limit))
+			}
+		}
+		return msgs, err
+	}
+
+	client, err := newLinkedInMCP(ctx, s.userDataDir)
+	if err != nil {
+		return fmt.Errorf("linkedin mcp: %w", err)
+	}
+	inbox, err := client.GetInbox(ctx, 50)
+	if err != nil {
+		client.Close()
+		return fmt.Errorf("get_inbox: %w", err)
+	}
+	client.Close()
+	if len(inbox) == 0 {
+		fmt.Println("chats: no LinkedIn conversations found")
+		return nil
+	}
+
+	fmt.Printf("chats: found %d LinkedIn conversations\n", len(inbox))
+
+	for _, conv := range inbox {
+		convID := sanitizeDir(conv.ThreadID)
+		if convID == "" {
+			convID = fmt.Sprintf("conv_%d", time.Now().UnixNano())
+		}
+
+		parts := strings.SplitN(conv.Participants, ",", 2)
+		chatName := strings.TrimSpace(parts[0])
+		if chatName == "" {
+			chatName = convID
+		}
+
+		chatDir := filepath.Join(outDir, "linkedin", convID)
+		if err := os.MkdirAll(chatDir, 0755); err != nil {
+			fmt.Fprintf(os.Stderr, "chats: mkdir %s: %v\n", chatDir, err)
+			continue
+		}
+
+		msgs, err := getConversation(conv.ThreadID)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "chats: get_conversation %s: %v\n", convID, err)
+			continue
+		}
+
+		jsonlPath := filepath.Join(chatDir, "messages.jsonl")
+
+		// A rate-limited response can parse to zero messages. Never clobber
+		// previously synced data with an empty file.
+		if len(msgs) == 0 {
+			fmt.Fprintf(os.Stderr, "chats: %s (%s): 0 messages parsed, keeping existing file\n", chatName, convID)
+			continue
+		}
+
+		f, err := os.Create(jsonlPath)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "chats: create %s: %v\n", jsonlPath, err)
+			continue
+		}
+
+		enc := json.NewEncoder(f)
+		written := 0
+		for i, m := range msgs {
+			text := m.Text
+			if text == "" {
+				continue
+			}
+
+			ts := m.Date
+			if t, err := time.Parse("2006-01-02T15:04:05Z07:00", m.Date); err == nil {
+				ts = t.UTC().Format(time.RFC3339)
+			} else if t, err := time.Parse(time.RFC3339, m.Date); err == nil {
+				ts = t.UTC().Format(time.RFC3339)
+			}
+
+			chatMsg := Message{
+				ID:        fmt.Sprintf("li_%s_%d", convID, i),
+				Timestamp: ts,
+				From:      m.From,
+				Text:      text,
+				Platform:  "linkedin",
+			}
+			if err := enc.Encode(chatMsg); err != nil {
+				fmt.Fprintf(os.Stderr, "chats: encode: %v\n", err)
+				continue
+			}
+			written++
+		}
+		f.Close()
+
+		fmt.Printf("chats: synced %s (%s) — %d messages\n", chatName, convID, written)
+
+		// Pause between conversations to reduce LinkedIn rate limiting.
+		select {
+		case <-ctx.Done():
+			return ctx.Err()
+		case <-time.After(2 * time.Second):
+		}
+	}
+
+	return nil
+}
+
+type linkedInMCPClient struct {
+	cmd    *exec.Cmd
+	stdin  *bufio.Writer
+	stdout *bufio.Scanner
+	msgID  int
+}
+
+func newLinkedInMCP(ctx context.Context, userDataDir string) (*linkedInMCPClient, error) {
+	args := []string{
+		"mcp-server-linkedin@latest",
+		"--user-data-dir", userDataDir,
+		"--no-auto-import",
+		"--no-daemon",
+		"--transport", "stdio",
+		"--login-timeout", "10",
+		"--browser-wait", "1",
+		"--browser-idle-timeout", "10",
+		"--log-level", "ERROR",
+	}
+
+	cmd := exec.CommandContext(ctx, "uvx", args...)
+	cmd.Env = os.Environ()
+
+	stdin, err := cmd.StdinPipe()
+	if err != nil {
+		return nil, fmt.Errorf("stdin pipe: %w", err)
+	}
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return nil, fmt.Errorf("stdout pipe: %w", err)
+	}
+	cmd.Stderr = os.Stderr
+
+	if err := cmd.Start(); err != nil {
+		return nil, fmt.Errorf("start: %w", err)
+	}
+
+	c := &linkedInMCPClient{
+		cmd:    cmd,
+		stdin:  bufio.NewWriter(stdin),
+		stdout: bufio.NewScanner(stdout),
+		msgID:  0,
+	}
+	c.stdout.Buffer(make([]byte, 1<<20), 1<<20)
+
+	if err := c.initialize(ctx); err != nil {
+		c.Close()
+		return nil, fmt.Errorf("init: %w", err)
+	}
+	return c, nil
+}
+
+func (c *linkedInMCPClient) nextID() int {
+	c.msgID++
+	return c.msgID
+}
+
+func (c *linkedInMCPClient) initialize(ctx context.Context) error {
+	params := map[string]interface{}{
+		"protocolVersion": "2024-11-05",
+		"capabilities":    map[string]interface{}{},
+		"clientInfo": map[string]string{
+			"name":    "chats-sync",
+			"version": "0.1.0",
+		},
+	}
+	_, err := c.send(ctx, "initialize", params)
+	return err
+}
+
+func (c *linkedInMCPClient) send(ctx context.Context, method string, params interface{}) (json.RawMessage, error) {
+	id := c.nextID()
+	req := map[string]interface{}{
+		"jsonrpc": "2.0",
+		"id":      id,
+		"method":  method,
+	}
+	if params != nil {
+		req["params"] = params
+	}
+	body, err := json.Marshal(req)
+	if err != nil {
+		return nil, fmt.Errorf("marshal: %w", err)
+	}
+
+	if _, err := c.stdin.Write(body); err != nil {
+		return nil, fmt.Errorf("write: %w", err)
+	}
+	if err := c.stdin.WriteByte('\n'); err != nil {
+		return nil, fmt.Errorf("newline: %w", err)
+	}
+	if err := c.stdin.Flush(); err != nil {
+		return nil, fmt.Errorf("flush: %w", err)
+	}
+
+	for c.stdout.Scan() {
+		line := c.stdout.Text()
+		if line == "" {
+			continue
+		}
+		var resp struct {
+			JSONRPC string          `json:"jsonrpc"`
+			ID      int             `json:"id"`
+			Result  json.RawMessage `json:"result,omitempty"`
+			Error   *struct {
+				Code    int    `json:"code"`
+				Message string `json:"message"`
+			} `json:"error,omitempty"`
+		}
+		if err := json.Unmarshal([]byte(line), &resp); err != nil {
+			return nil, fmt.Errorf("unmarshal: %w\nline: %s", err, line[:min(len(line), 500)])
+		}
+		if resp.Error != nil {
+			return nil, fmt.Errorf("rpc error %d: %s", resp.Error.Code, resp.Error.Message)
+		}
+		return resp.Result, nil
+	}
+	return nil, fmt.Errorf("no response: %w", c.stdout.Err())
+}
+
+// msgLimitFor returns the per-conversation message cap for a sync.
+func msgLimitFor(limit int) int {
+	if limit > 0 {
+		return limit
+	}
+	return 100
+}
+
+// wedged reports whether a conversation fetch failure means the MCP server
+// closed its browser and will refuse every later call.
+func wedged(err error) bool {
+	return strings.Contains(err.Error(), "still has a browser open")
+}
+
+// callTool invokes an MCP tool, retrying transient (rate-limit) failures.
+func (c *linkedInMCPClient) callTool(ctx context.Context, name string, params map[string]interface{}) (json.RawMessage, error) {
+	var lastErr error
+	for attempt := 0; attempt < 3; attempt++ {
+		if attempt > 0 {
+			delay := time.Duration(1<<uint(attempt)) * 5 * time.Second
+			select {
+			case <-ctx.Done():
+				return nil, ctx.Err()
+			case <-time.After(delay):
+			}
+		}
+		result, err := c.send(ctx, "tools/call", map[string]interface{}{
+			"name":      name,
+			"arguments": params,
+		})
+		if err == nil {
+			// Tool-level errors surface as a successful RPC with an
+			// isError=true content entry.
+			if hint := toolErrorHint(result); hint != "" {
+				lastErr = fmt.Errorf("%s error: %s", name, hint)
+				if !isTransientLinkedInError(lastErr.Error()) {
+					return nil, lastErr
+				}
+				continue
+			}
+			return result, nil
+		}
+		lastErr = err
+		if !isTransientLinkedInError(err.Error()) {
+			return nil, err
+		}
+	}
+	return nil, fmt.Errorf("%s: %w", name, lastErr)
+}
+
+// toolErrorHint returns the tool's error text when the result has isError set.
+func toolErrorHint(result json.RawMessage) string {
+	var toolRes struct {
+		Content []struct {
+			Type string `json:"type"`
+			Text string `json:"text"`
+		} `json:"content"`
+		IsError bool `json:"isError"`
+	}
+	if err := json.Unmarshal(result, &toolRes); err != nil || !toolRes.IsError {
+		return ""
+	}
+	if len(toolRes.Content) > 0 {
+		return toolRes.Content[0].Text
+	}
+	return "unknown tool error"
+}
+
+// isTransientLinkedInError reports whether a fetch failed due to rate limiting
+// or a transient server error, which may succeed on retry.
+func isTransientLinkedInError(msg string) bool {
+	return strings.Contains(msg, "503") || strings.Contains(msg, "429") ||
+		strings.Contains(msg, "ERR_HTTP_RESPONSE_CODE_FAILURE") ||
+		strings.Contains(msg, "ERR_ABORTED") ||
+		strings.Contains(msg, "Error calling tool") ||
+		strings.Contains(msg, "Unexpected error") ||
+		strings.Contains(msg, "still has a browser open")
+}
+
+func (c *linkedInMCPClient) GetInbox(ctx context.Context, limit int) ([]lnInboxItem, error) {
+	params := map[string]interface{}{
+		"limit": limit,
+	}
+	result, err := c.callTool(ctx, "get_inbox", params)
+	if err != nil {
+		return nil, err
+	}
+
+	var toolRes struct {
+		Content []struct {
+			Type string `json:"type"`
+			Text string `json:"text"`
+		} `json:"content"`
+		IsError bool `json:"isError"`
+	}
+	if err := json.Unmarshal(result, &toolRes); err != nil {
+		return nil, fmt.Errorf("unmarshal tool: %w", err)
+	}
+	if len(toolRes.Content) == 0 {
+		return nil, nil
+	}
+
+	text := toolRes.Content[0].Text
+	return parseLinkedInInbox(text), nil
+}
+
+func (c *linkedInMCPClient) GetConversation(ctx context.Context, username, threadID string, limit int) ([]lnMessage, error) {
+	params := map[string]interface{}{
+		"linkedin_username": username,
+		"thread_id":         threadID,
+		"index":             limit,
+	}
+	result, err := c.callTool(ctx, "get_conversation", params)
+	if err != nil {
+		return nil, err
+	}
+
+	var toolRes struct {
+		Content []struct {
+			Type string `json:"type"`
+			Text string `json:"text"`
+		} `json:"content"`
+		IsError bool `json:"isError"`
+	}
+	if err := json.Unmarshal(result, &toolRes); err != nil {
+		return nil, fmt.Errorf("unmarshal tool: %w", err)
+	}
+	if len(toolRes.Content) == 0 {
+		return nil, nil
+	}
+
+	text := toolRes.Content[0].Text
+	return parseLinkedInConversation(text), nil
+}
+
+func (c *linkedInMCPClient) Close() error {
+	if c.stdin != nil {
+		c.stdin.Flush()
+	}
+	if c.cmd != nil && c.cmd.Process != nil {
+		c.cmd.Process.Kill()
+	}
+	return nil
+}

internal/chats/linkedin_test.go

@@ -0,0 +1,215 @@
+package chats
+
+import (
+	"errors"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+)
+
+func readFixture(t *testing.T, name string) string {
+	t.Helper()
+	data, err := os.ReadFile(filepath.Join("testdata", name))
+	if err != nil {
+		t.Fatal(err)
+	}
+	return string(data)
+}
+
+// TestParseLinkedInInbox verifies get_inbox parsing against the v4.22 wire
+// format (testdata/linkedin_inbox.json — synthetic Alice/Bob/Charlie).
+func TestParseLinkedInInbox(t *testing.T) {
+	text := readFixture(t, "linkedin_inbox.json")
+	items := parseLinkedInInbox(text)
+	if len(items) != 2 {
+		t.Fatalf("expected 2 conversations (empty thread url skipped), got %d", len(items))
+	}
+
+	first := items[0]
+	if first.ThreadID == "" {
+		t.Error("expected thread id extracted from reference url")
+	}
+	if first.Participants != "Alice Example" {
+		t.Errorf("participants=%q, want Alice Example", first.Participants)
+	}
+	if !strings.HasPrefix(first.ThreadID, "2-") {
+		t.Errorf("unexpected thread id format %q", first.ThreadID)
+	}
+	if items[1].Participants != "Charlie Example" {
+		t.Errorf("second participant=%q, want Charlie Example", items[1].Participants)
+	}
+}
+
+// TestParseLinkedInInboxBadJSON verifies a non-JSON response yields no items
+// rather than a panic or error.
+func TestParseLinkedInInboxBadJSON(t *testing.T) {
+	if got := parseLinkedInInbox("Session expired"); len(got) != 0 {
+		t.Fatalf("expected no items for non-JSON, got %d", len(got))
+	}
+}
+
+// TestParseLinkedInConversation verifies message extraction from the sections
+// blob (testdata/linkedin_conversation.json — synthetic Alice/Bob).
+func TestParseLinkedInConversation(t *testing.T) {
+	text := readFixture(t, "linkedin_conversation.json")
+	msgs := parseLinkedInConversation(text)
+	if len(msgs) != 2 {
+		t.Fatalf("expected 2 messages, got %d", len(msgs))
+	}
+
+	if msgs[0].From != "Alice Example" {
+		t.Errorf("from=%q, want Alice Example", msgs[0].From)
+	}
+	if !strings.Contains(msgs[0].Text, "Senior Software Engineer") {
+		t.Errorf("alice text missing role, got %q", msgs[0].Text)
+	}
+	if msgs[0].Date == "" {
+		t.Error("expected message date")
+	}
+	if msgs[1].From != "Bob Example" {
+		t.Errorf("from=%q, want Bob Example", msgs[1].From)
+	}
+}
+
+// TestParseLinkedInConversationEmpty verifies empty/non-JSON blobs parse to
+// zero messages.
+func TestParseLinkedInConversationEmpty(t *testing.T) {
+	if got := parseLinkedInConversation("no data here"); len(got) != 0 {
+		t.Fatalf("expected 0 messages, got %d", len(got))
+	}
+}
+
+// TestLinkedInTimestamp verifies weekday+clock resolution to a recent UTC date.
+func TestLinkedInTimestamp(t *testing.T) {
+	// The most recent Wednesday before/equal to "now".
+	ts := linkedInTimestamp("WEDNESDAY", "10:02 AM")
+	parsed, err := time.Parse(time.RFC3339, ts)
+	if err != nil {
+		t.Fatalf("unparseable timestamp %q: %v", ts, err)
+	}
+	if parsed.Weekday() != time.Wednesday {
+		t.Errorf("expected Wednesday, got %s", parsed.Weekday())
+	}
+	if parsed.Hour() != 10 || parsed.Minute() != 2 {
+		t.Errorf("expected 10:02, got %02d:%02d", parsed.Hour(), parsed.Minute())
+	}
+
+	now := time.Now()
+	diff := now.Sub(parsed)
+	if diff < 0 || diff > 7*24*time.Hour {
+		t.Errorf("timestamp %s is not within the last week of %s", parsed, now)
+	}
+
+	if got := linkedInTimestamp("MONDAY", "garbage"); got != "" {
+		t.Errorf("expected empty for bad clock, got %q", got)
+	}
+	if got := linkedInTimestamp("", "1:22 PM"); got != "13:22" {
+		t.Errorf("expected bare 13:22 for missing weekday, got %q", got)
+	}
+
+	// Relative day headers must resolve to full dates, not bare clocks.
+	today := linkedInTimestamp("TODAY", "9:42 AM")
+	yp, err := time.Parse(time.RFC3339, today)
+	if err != nil {
+		t.Fatalf("TODAY unparseable %q: %v", today, err)
+	}
+	if yp.Year() != now.Year() || yp.Month() != now.Month() || yp.Day() != now.Day() {
+		t.Errorf("TODAY expected %v, got %v", now, yp)
+	}
+	yest := linkedInTimestamp("YESTERDAY", "3:00 PM")
+	yp, err = time.Parse(time.RFC3339, yest)
+	if err != nil {
+		t.Fatalf("YESTERDAY unparseable %q: %v", yest, err)
+	}
+	if yp.Day() != now.AddDate(0, 0, -1).Day() {
+		t.Errorf("YESTERDAY expected day %d, got %d", now.AddDate(0, 0, -1).Day(), yp.Day())
+	}
+
+	// MON DD header (e.g. "JUN 25"): must resolve to a full date. The
+	// timestamp should fall within the current year (falling back to the
+	// prior year if the date would be in the future).
+	md := linkedInTimestamp("JUN 25", "10:48 AM")
+	mp, err := time.Parse(time.RFC3339, md)
+	if err != nil {
+		t.Fatalf("MON DD unparseable %q: %v", md, err)
+	}
+	if mp.Year() != now.Year() && mp.Year() != now.Year()-1 {
+		t.Errorf("JUN 25 expected year %d or %d, got %d", now.Year(), now.Year()-1, mp.Year())
+	}
+	if mp.Month() != time.June || mp.Day() != 25 {
+		t.Errorf("JUN 25 expected Jun 25, got %s %d", mp.Month(), mp.Day())
+	}
+	if mp.After(now) {
+		t.Errorf("JUN 25 resolved to the future: %s > %s", mp, now)
+	}
+}
+
+// TestTransientLinkedInError verifies rate-limit errors are retryable but
+// genuine failures are not.
+func TestTransientLinkedInError(t *testing.T) {
+	retryable := []string{
+		"get_conversation error: Error calling tool 'get_conversation'",
+		"get_conversation error: Unexpected error in get_conversation: net::ERR_HTTP_RESPONSE_CODE_FAILURE",
+		"rpc error 503: rate limited",
+		"rpc error 429: too many requests",
+		"get_conversation: get_conversation error: This server still has a browser open on the profile.",
+	}
+	for _, msg := range retryable {
+		if !isTransientLinkedInError(msg) {
+			t.Errorf("expected %q to be transient", msg)
+		}
+	}
+	permanent := []string{
+		"get_inbox error: bad credentials",
+		"rpc error -32602: Invalid request parameters",
+		"unmarshal: unexpected end of JSON input",
+	}
+	for _, msg := range permanent {
+		if isTransientLinkedInError(msg) {
+			t.Errorf("expected %q to be permanent", msg)
+		}
+	}
+}
+
+// TestMsgLimitFor verifies the per-conversation message cap resolution.
+func TestMsgLimitFor(t *testing.T) {
+	if got := msgLimitFor(0); got != 100 {
+		t.Errorf("expected default 100, got %d", got)
+	}
+	if got := msgLimitFor(5); got != 5 {
+		t.Errorf("expected 5, got %d", got)
+	}
+}
+
+// TestWedged verifies the browser-open failure is recognized as a wedge.
+func TestWedged(t *testing.T) {
+	if !wedged(errors.New("get_conversation error: This server still has a browser open on the profile")) {
+		t.Error("expected wedged error to be recognized")
+	}
+	if wedged(errors.New("get_conversation error: bad thing")) {
+		t.Error("unexpected wedge detection")
+	}
+}
+
+// TestThreadIDFromURL verifies thread id extraction.
+func TestThreadIDFromURL(t *testing.T) {
+	cases := []struct {
+		url, want string
+	}{
+		{"/messaging/thread/2-abc123/", "2-abc123"},
+		{"/messaging/thread/2-abc123", "2-abc123"},
+		{"", ""},
+		{"/messaging/thread/", ""},
+	}
+	for _, c := range cases {
+		got := threadIDFromURL(c.url)
+		if c.want == "" && validThreadID(got) {
+			t.Errorf("threadIDFromURL(%q) = %q, want empty", c.url, got)
+		}
+		if c.want != "" && got != c.want {
+			t.Errorf("threadIDFromURL(%q) = %q, want %q", c.url, got, c.want)
+		}
+	}
+}

internal/chats/mcpclient.go

@@ -1,4 +1,4 @@
-package main
+package chats
 
 import (
 	"bufio"

internal/chats/paths.go

@@ -0,0 +1,39 @@
+package chats
+
+import (
+	"os"
+	"strings"
+)
+
+// Root locates the 2dph project root (KB_ROOT, or walk up for var/ or .git).
+func Root() string {
+	if v := os.Getenv("KB_ROOT"); v != "" {
+		return v
+	}
+	wd, err := os.Getwd()
+	if err != nil {
+		return "."
+	}
+	for i := 0; i < 10; i++ {
+		if _, err := os.Stat(wd + "/var"); err == nil {
+			return wd
+		}
+		if _, err := os.Stat(wd + "/.git"); err == nil {
+			return wd
+		}
+		parent := wd
+		if idx := strings.LastIndex(wd, "/"); idx >= 0 {
+			parent = wd[:idx]
+		}
+		if parent == wd {
+			break
+		}
+		wd = parent
+	}
+	return "."
+}
+
+// Dir is var/chats under the project root.
+func Dir() string {
+	return Root() + "/var/chats"
+}

internal/chats/source.go

@@ -1,4 +1,4 @@
-package main
+package chats
 
 import (
 	"context"

internal/chats/sync_linkedin.go

@@ -0,0 +1,105 @@
+package chats
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"time"
+)
+
+func checkLinkedInSession(userDataDir string) (bool, error) {
+	// Validate the source-session files without launching a browser. A full
+	// `--status` run spawns Chromium and loads /feed/, doubling the automation
+	// exposed to LinkedIn (429 rate limits) before the sync even starts.
+	root := filepath.Dir(userDataDir)
+	sessionFiles := []string{
+		filepath.Join(root, "source-state.json"),
+		filepath.Join(root, "cookies.json"),
+		filepath.Join(userDataDir, "Default", "Cookies"),
+	}
+	for _, f := range sessionFiles {
+		if _, err := os.Stat(f); err != nil {
+			return true, fmt.Errorf("missing session file %s", f)
+		}
+	}
+	return false, nil
+}
+
+func RunSyncLinkedIn(args []string) int {
+	fs := flag.NewFlagSet("chats sync linkedin", flag.ContinueOnError)
+	limit := fs.Int("limit", 0, "max messages per conversation (0 = all)")
+	refresh := fs.Bool("refresh", false, "refresh session from live webtop browser before sync")
+	help := fs.Bool("help", false, "")
+	fs.SetOutput(os.Stderr)
+	if err := fs.Parse(args); err != nil {
+		return 2
+	}
+	if *help {
+		fmt.Fprintln(os.Stderr, "usage: chats sync linkedin [--limit N] [--refresh]")
+		return 0
+	}
+
+	userDataDir := envVar("LINKEDIN_USER_DATA_DIR", "")
+	if userDataDir == "" {
+		home, _ := os.UserHomeDir()
+		userDataDir = home + "/.linkedin-mcp/profile"
+	}
+
+	if *refresh {
+		if code := refreshLinkedInSession(userDataDir); code != 0 {
+			return code
+		}
+	}
+
+	// Check session files first (no browser launch).
+	loginNeeded, err := checkLinkedInSession(userDataDir)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "chats: linkedin status check: %v\n", err)
+	}
+	if loginNeeded {
+		fmt.Fprintf(os.Stderr, "chats: LinkedIn session missing. Run:\n")
+		fmt.Fprintf(os.Stderr, "  chats sync linkedin --refresh\n")
+		fmt.Fprintf(os.Stderr, "or point LINKEDIN_USER_DATA_DIR at a valid session\n")
+		return 1
+	}
+
+	src := NewLinkedInMCPSource(userDataDir)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Minute)
+	defer cancel()
+
+	start := time.Now()
+	if err := src.Sync(ctx, Dir(), *limit); err != nil {
+		fmt.Fprintf(os.Stderr, "chats sync linkedin: %v\n", err)
+		return 1
+	}
+	fmt.Printf("chats sync linkedin: completed in %s\n", time.Since(start).Round(time.Millisecond))
+	return 0
+}
+
+// refreshLinkedInSession re-syncs the LinkedIn source session from the live
+// webtop browser via the vendored refresh-linkedin-session helper.
+func refreshLinkedInSession(userDataDir string) int {
+	exe, err := os.Executable()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "chats: resolve executable: %v\n", err)
+		return 1
+	}
+	helper := filepath.Join(filepath.Dir(exe), "refresh-linkedin-session")
+	if _, err := os.Stat(helper); err != nil {
+		// Fall back to the source tree helper next to this command file.
+		helper = "bin/chats/refresh-linkedin-session"
+	}
+	root := filepath.Dir(userDataDir)
+	cmd := exec.Command(helper, "--root", root)
+	cmd.Stdout = os.Stderr
+	cmd.Stderr = os.Stderr
+	if err := cmd.Run(); err != nil {
+		fmt.Fprintf(os.Stderr, "chats: linkedin session refresh: %v\n", err)
+		return 1
+	}
+	return 0
+}

internal/chats/sync_telegram.go

@@ -1,4 +1,4 @@
-package main
+package chats
 
 import (
 	"context"
@@ -11,7 +11,7 @@ import (
 	"time"
 )
 
-func runSyncTelegram(args []string) int {
+func RunSyncTelegram(args []string) int {
 	fs := flag.NewFlagSet("chats sync telegram", flag.ContinueOnError)
 	limit := fs.Int("limit", 0, "max messages per chat (0 = all)")
 	phone := fs.String("phone", "", "phone number (default env TELEGRAM_PHONE)")
@@ -78,7 +78,7 @@ func runSyncTelegram(args []string) int {
 	defer cancel()
 
 	start := time.Now()
-	if err := src.Sync(ctx, chatsDir(), *limit); err != nil {
+	if err := src.Sync(ctx, Dir(), *limit); err != nil {
 		fmt.Fprintf(os.Stderr, "chats sync telegram: %v\n", err)
 		return 1
 	}

internal/chats/testdata/linkedin_conversation.json

@@ -0,0 +1,12 @@
+{
+  "url": "https://www.linkedin.com/messaging/thread/2-YWxpY2UtYm9iLXRocmVhZC0xMjM=/",
+  "sections": {
+    "conversation": "WEDNESDAY\nAlice Example sent the following message at 10:02 AM\nView Alice Example's profile\nAlice Example  (She/Her)  10:02 AM\nHi Bob, we have a Senior Software Engineer role that matches your Go and Python background. Happy to share more if you are open to a chat.\n\nBob Example sent the following messages at 1:22 PM\nView Bob Example's profile\nBob Example  1:22 PM\nHi Alice, thanks for reaching out — yes, I am open to exploring a Senior Software Engineer role. Happy to do a short video call.\n"
+  },
+  "references": {
+    "conversation": [
+      {"kind": "person", "url": "/in/alice-example/", "text": "Alice Example"},
+      {"kind": "person", "url": "/in/bob-example/", "text": "Bob Example"}
+    ]
+  }
+}

internal/chats/testdata/linkedin_inbox.json

@@ -0,0 +1,34 @@
+{
+  "url": "https://www.linkedin.com/messaging/",
+  "sections": {
+    "inbox": "Messaging\nInbox\nConversation List\nAlice Example\nExciting opportunity for a senior software engineer\n"
+  },
+  "references": {
+    "inbox": [
+      {
+        "kind": "conversation",
+        "url": "/messaging/thread/2-YWxpY2UtYm9iLXRocmVhZC0xMjM=/",
+        "context": "inbox",
+        "text": "Alice Example"
+      },
+      {
+        "kind": "person",
+        "url": "/in/alice-example/",
+        "text": "Alice Example",
+        "context": "inbox"
+      },
+      {
+        "kind": "conversation",
+        "url": "/messaging/thread/2-Y2hhcmxpZS1ib2ItdGhyZWFkLTQ1Ng==/",
+        "context": "inbox",
+        "text": "Charlie Example"
+      },
+      {
+        "kind": "conversation",
+        "url": "/messaging/thread/",
+        "context": "inbox",
+        "text": "should-be-skipped"
+      }
+    ]
+  }
+}