diff --git a/AGENTS.md b/AGENTS.md
index e7ab45d..d57865b 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -37,7 +37,8 @@ docs/         published docs
 skills/       in-project agent skills (vendored, no external links)
 bin/          self-describing tools bin/{subject}/{method}.go (shebang)
 bin/brain/    search.go, serve.go; libs in internal/brain and internal/httpapi
-internal/     shared Go (brain/rank is cgo-free)
+bin/chats/    sync.go import.go facts.go apply.go; libs in internal/chats
+internal/     shared Go (brain/rank is cgo-free; chats parsers too)
 bin/watch/    corpus watcher (internal via bin/brain/watch later)
 bin/mail/     mail pipeline: sync (Go), import (md), index_mail (rebuild)
 bin/tools/    vendored python libs behind bin/* (kblib, yamlout, websearch)
diff --git a/PLAN.md b/PLAN.md
index d086911..d30673d 100644
--- a/PLAN.md
+++ b/PLAN.md
@@ -57,6 +57,8 @@ detective method: **a fact needs ≥2 independent sources or it is
     brain/search.go         deduction: facts → info → web-search
     kb/get  kb/stats  kb/eval
     brain/serve.go          HTTP API (internal/httpapi)
+    chats/sync.go import.go facts.go apply.go
+                            (libs in internal/chats; no chats index)
     md/import  md/select  md/tables  md/gaps     (mistune)
     brain/extract  brain/audit   brain/deduce    (thinking wrapper)
     web/search               (vendored)
diff --git a/bin/chats/apply.go b/bin/chats/apply.go
new file mode 100755
index 0000000..b03bd88
--- /dev/null
+++ b/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:]))
+}
diff --git a/bin/chats/doc.go b/bin/chats/doc.go
new file mode 100644
index 0000000..4a8cb8d
--- /dev/null
+++ b/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
diff --git a/bin/chats/facts.go b/bin/chats/facts.go
new file mode 100755
index 0000000..3b50580
--- /dev/null
+++ b/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:]))
+}
diff --git a/bin/chats/go.sum b/bin/chats/go.sum
deleted file mode 100644
index e69de29..0000000
diff --git a/bin/chats/import.go b/bin/chats/import.go
new file mode 100755
index 0000000..de020ef
--- /dev/null
+++ b/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:]))
+}
diff --git a/bin/chats/index_cmd.go b/bin/chats/index_cmd.go
deleted file mode 100644
index dcc0ada..0000000
--- a/bin/chats/index_cmd.go
+++ /dev/null
@@ -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
-}
diff --git a/bin/chats/main.go b/bin/chats/main.go
deleted file mode 100644
index 0545209..0000000
--- a/bin/chats/main.go
+++ /dev/null
@@ -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"
-}
diff --git a/bin/chats/sync.go b/bin/chats/sync.go
new file mode 100755
index 0000000..14eaac0
--- /dev/null
+++ b/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)
+	}
+}
diff --git a/bin/tools/test_bin_layout.py b/bin/tools/test_bin_layout.py
index bf7e9e7..203aa9a 100644
--- a/bin/tools/test_bin_layout.py
+++ b/bin/tools/test_bin_layout.py
@@ -34,3 +34,32 @@ class BinLayoutTest(unittest.TestCase):
     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",
+        )
diff --git a/docs/chat-import-plan.md b/docs/chat-import-plan.md
index 2072ebc..91875e0 100644
--- a/docs/chat-import-plan.md
+++ b/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/chat import
-./bin/chat index
-./bin/chat facts
-./bin/chat apply --dry-run
+./bin/chats/sync.go telegram --limit 100
+./bin/chats/import.go
+./bin/chats/facts.go
+./bin/chats/apply.go --dry-run
 ```
+
+JSONL → markdown only. Brain ingest is `bin/brain/index.go` (not a `chats index`).
diff --git a/bin/chats/apply_cmd.go b/internal/chats/apply.go
similarity index 98%
rename from bin/chats/apply_cmd.go
rename to internal/chats/apply.go
index 1b17127..3d200b1 100644
--- a/bin/chats/apply_cmd.go
+++ b/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) {
diff --git a/bin/chats/chats_test.go b/internal/chats/chats_test.go
similarity index 97%
rename from bin/chats/chats_test.go
rename to internal/chats/chats_test.go
index 31b21ed..e9c150a 100644
--- a/bin/chats/chats_test.go
+++ b/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)
 	}
 
diff --git a/bin/chats/facts_cmd.go b/internal/chats/facts.go
similarity index 89%
rename from bin/chats/facts_cmd.go
rename to internal/chats/facts.go
index 0f0786d..8213be0 100644
--- a/bin/chats/facts_cmd.go
+++ b/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) {
-	indexScript := filepath.Join(root, "bin", "kb", "index")
-	if _, err := os.Stat(indexScript); os.IsNotExist(err) {
-		fmt.Fprintf(os.Stderr, "chats facts: kb/index not found, skipping brain write\n")
-		return
-	}
-
-	mdDir := filepath.Join(chatsDir(), "facts")
+// writeFactsMarkdown stores a sidecar for humans. Brain ingest is
+// bin/brain/index.go (not this subject).
+func writeFactsMarkdown(facts []ExtractedFact) {
+	mdDir := filepath.Join(Dir(), "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
 	}
-
-	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()))
+	fmt.Printf("chats facts: markdown %s (index via brain, not chats)\n", factsMD)
 }
diff --git a/bin/chats/import_cmd.go b/internal/chats/import.go
similarity index 98%
rename from bin/chats/import_cmd.go
rename to internal/chats/import.go
index 6a0ac6e..2154e33 100644
--- a/bin/chats/import_cmd.go
+++ b/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")
 
diff --git a/bin/chats/linkedin.go b/internal/chats/linkedin.go
similarity index 99%
rename from bin/chats/linkedin.go
rename to internal/chats/linkedin.go
index 78f9377..33bf500 100644
--- a/bin/chats/linkedin.go
+++ b/internal/chats/linkedin.go
@@ -1,4 +1,4 @@
-package main
+package chats
 
 import (
 	"bufio"
diff --git a/bin/chats/linkedin_test.go b/internal/chats/linkedin_test.go
similarity index 99%
rename from bin/chats/linkedin_test.go
rename to internal/chats/linkedin_test.go
index aeb96dd..cdf4a94 100644
--- a/bin/chats/linkedin_test.go
+++ b/internal/chats/linkedin_test.go
@@ -1,4 +1,4 @@
-package main
+package chats
 
 import (
 	"errors"
diff --git a/bin/chats/mcpclient.go b/internal/chats/mcpclient.go
similarity index 99%
rename from bin/chats/mcpclient.go
rename to internal/chats/mcpclient.go
index 44264d7..306de76 100644
--- a/bin/chats/mcpclient.go
+++ b/internal/chats/mcpclient.go
@@ -1,4 +1,4 @@
-package main
+package chats
 
 import (
 	"bufio"
diff --git a/internal/chats/paths.go b/internal/chats/paths.go
new file mode 100644
index 0000000..a74fcab
--- /dev/null
+++ b/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"
+}
diff --git a/bin/chats/source.go b/internal/chats/source.go
similarity index 98%
rename from bin/chats/source.go
rename to internal/chats/source.go
index 9223d10..677a0ce 100644
--- a/bin/chats/source.go
+++ b/internal/chats/source.go
@@ -1,4 +1,4 @@
-package main
+package chats
 
 import (
 	"context"
diff --git a/bin/chats/sync_linkedin_cmd.go b/internal/chats/sync_linkedin.go
similarity index 96%
rename from bin/chats/sync_linkedin_cmd.go
rename to internal/chats/sync_linkedin.go
index 13a0d81..0b02f1b 100644
--- a/bin/chats/sync_linkedin_cmd.go
+++ b/internal/chats/sync_linkedin.go
@@ -1,4 +1,4 @@
-package main
+package chats
 
 import (
 	"context"
@@ -28,7 +28,7 @@ func checkLinkedInSession(userDataDir string) (bool, error) {
 	return false, nil
 }
 
-func runSyncLinkedIn(args []string) int {
+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")
@@ -72,7 +72,7 @@ func runSyncLinkedIn(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 linkedin: %v\n", err)
 		return 1
 	}
diff --git a/bin/chats/sync_cmd.go b/internal/chats/sync_telegram.go
similarity index 95%
rename from bin/chats/sync_cmd.go
rename to internal/chats/sync_telegram.go
index 50823d5..306ef4d 100644
--- a/bin/chats/sync_cmd.go
+++ b/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
 	}
diff --git a/bin/chats/testdata/linkedin_conversation.json b/internal/chats/testdata/linkedin_conversation.json
similarity index 100%
rename from bin/chats/testdata/linkedin_conversation.json
rename to internal/chats/testdata/linkedin_conversation.json
diff --git a/bin/chats/testdata/linkedin_inbox.json b/internal/chats/testdata/linkedin_inbox.json
similarity index 100%
rename from bin/chats/testdata/linkedin_inbox.json
rename to internal/chats/testdata/linkedin_inbox.json