feat(server): INGEST_WING_ROUTING wires the Router; remove the classifier path (#208)

Removes the LLM classifier, the substring 'BM25' scorer, the agreement gate, the backtest and the old migrate/wingmigrate tooling: measured at 2 of 55 pages placed (#208), and the migration was built for the per-wing facts layout this branch replaces. wing now holds the decision types, the Router and KnownWings. INGEST_WING_ROUTING=1 builds the Router (default wing INGEST_DEFAULT_WING=web-clip, client pattern from INGEST_CLIENT_BLOCK or CLAUDE_INGEST_CLIENT_BLOCK); a bad default or pattern is fatal at startup. Watcher tests rewritten for the Router, including a deliberate subfolder into any existing wing, typo'd folders parked, forged-key and edit-while-placing cases. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-20 20:18:39 +02:00
parent 409b85096b
commit 8988c291ca
20 changed files with 263 additions and 1752 deletions
@@ -3,9 +3,9 @@ package watcher
 import (
 	"context"
 	"encoding/json"
-	"errors"
 	"os"
 	"path/filepath"
+	"regexp"
 	"strings"
 	"sync/atomic"
 	"testing"
@@ -17,37 +17,11 @@ import (
 	"github.com/mathiasbq/hyperguild/ingestion/internal/wing"
 )

-type stubClassifier struct {
-	s     wing.Suggestion
-	err   error
-	calls atomic.Int32
-}
-
-func (c *stubClassifier) Classify(context.Context, string, []string) (wing.Suggestion, error) {
-	c.calls.Add(1)
-	return c.s, c.err
-}
-
-type stubScorer map[string]float64
-
-func (s stubScorer) Score(string) map[string]float64 { return s }
-
-func wingResolver(c wing.Classifier, s wing.Scorer) *wing.Resolver {
-	return &wing.Resolver{
-		Known:      []string{"radar", "homelab", "client-x"},
-		Eligible:   func(w string) bool { return w != "client-x" },
-		Classifier: c,
-		Scorer:     s,
-		Threshold:  0.8,
-	}
-}
-
-func wingTestCfg(t *testing.T, r wing.Placer, llmCalls *atomic.Int32) (Config, string) {
+func wingTestCfg(t *testing.T, mk func(brainDir string) wing.Placer, llmCalls *atomic.Int32) (Config, string) {
 	t.Helper()
 	brainDir := setupBrainDir(t)
-	return Config{
+	cfg := Config{
 		BrainDir: brainDir,
-		Resolver: r,
 		Pipeline: pipeline.Config{
 			Schema: "# Schema",
 			Complete: func(ctx context.Context, s, u string) (string, error) {
@@ -55,7 +29,21 @@ func wingTestCfg(t *testing.T, r wing.Placer, llmCalls *atomic.Int32) (Config, s
 				return successComplete(pipeline.RawPage{Title: "Talk", Type: "source", Subtype: "video", Content: "## Summary\n\nx\n"})(ctx, s, u)
 			},
 		},
-	}, brainDir
+	}
+	if mk != nil {
+		cfg.Resolver = mk(brainDir)
+	}
+	return cfg, brainDir
+}
+
+// router is the production Router with a client-content marker.
+func router(brainDir string) wing.Placer {
+	return wing.Router{BrainDir: brainDir, Default: "web-clip", ClientBlock: regexp.MustCompile(`(?i)acme-client`)}
+}
+
+func makeWing(t *testing.T, brainDir, name string) {
+	t.Helper()
+	require.NoError(t, os.MkdirAll(filepath.Join(brainDir, "wiki", name, "facts"), 0o755))
 }

 func put(t *testing.T, brainDir, rel, body string) {
@@ -70,70 +58,91 @@ func has(brainDir, rel string) bool {
 	return err == nil
 }

+func mustJSONPages(pages []pipeline.RawPage) string {
+	b, err := json.Marshal(pages)
+	if err != nil {
+		panic(err)
+	}
+	return string(b)
+}
+
+func parkedBody(t *testing.T, brainDir, name string) string {
+	t.Helper()
+	b, err := os.ReadFile(filepath.Join(brainDir, "raw", "needs-review", name))
+	require.NoError(t, err)
+	return string(b)
+}
+
+func linesStartingWith(s, prefix string) int {
+	n := 0
+	for _, l := range strings.Split(s, "\n") {
+		if strings.HasPrefix(l, prefix) {
+			n++
+		}
+	}
+	return n
+}
+
 func TestProcessDir_ASubfolderNamesTheWing(t *testing.T) {
 	var llmCalls atomic.Int32
-	clf := &stubClassifier{}
-	cfg, brainDir := wingTestCfg(t, wingResolver(clf, stubScorer{}), &llmCalls)
+	cfg, brainDir := wingTestCfg(t, router, &llmCalls)
+	makeWing(t, brainDir, "radar")
 	put(t, brainDir, "radar/dark-factory.md", "A talk about factories.")

-	errs := processDir(context.Background(), cfg, "2026-10-20")
+	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))

-	require.Empty(t, errs)
 	assert.True(t, has(brainDir, "wiki/radar/sources/dark-factory.md"), "lands in the named wing")
 	assert.False(t, has(brainDir, "raw/radar/dark-factory.md"), "inbox zero holds for subfolders too")
-	assert.Zero(t, clf.calls.Load(), "an explicit wing costs no classification")
 }

-func TestProcessDir_ANoteTheResolverCannotPlaceIsParkedNotIngested(t *testing.T) {
+func TestProcessDir_ADeliberateSubfolderIntoAnyExistingWingPlaces(t *testing.T) {
 	var llmCalls atomic.Int32
-	clf := &stubClassifier{s: wing.Suggestion{Wing: "radar", Confidence: 0.5, Reason: "maybe"}}
-	cfg, brainDir := wingTestCfg(t, wingResolver(clf, stubScorer{"radar": 3}), &llmCalls)
-	put(t, brainDir, "unsure.md", "Some note.")
+	cfg, brainDir := wingTestCfg(t, router, &llmCalls)
+	makeWing(t, brainDir, "rikatillsammans")
+	put(t, brainDir, "rikatillsammans/meeting.md", "Notes the owner put there on purpose.")

-	errs := processDir(context.Background(), cfg, "2026-10-20")
+	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))
+
+	assert.True(t, has(brainDir, "wiki/rikatillsammans/sources/meeting.md"),
+		"a folder is the owner's deliberate choice; extraction runs on the local model")
+}
+
+func TestProcessDir_ANoteTheRouterCannotPlaceIsParkedNotIngested(t *testing.T) {
+	var llmCalls atomic.Int32
+	cfg, brainDir := wingTestCfg(t, router, &llmCalls)
+	put(t, brainDir, "kickoff.md", "Some note about the ACME-CLIENT kickoff.")
+
+	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))

-	require.Empty(t, errs)
 	assert.Zero(t, llmCalls.Load(), "no extraction runs for an unplaced note")
-	assert.False(t, has(brainDir, "raw/unsure.md"), "leaves the top of raw/")
-	parked, err := os.ReadFile(filepath.Join(brainDir, "raw", "needs-review", "unsure.md"))
-	require.NoError(t, err)
-	assert.Contains(t, string(parked), "proposed_wing: radar")
-	assert.Contains(t, string(parked), "below threshold")
-	assert.Contains(t, string(parked), "Some note.", "the note body is preserved")
+	assert.False(t, has(brainDir, "raw/kickoff.md"), "leaves the top of raw/")
+	parked := parkedBody(t, brainDir, "kickoff.md")
+	assert.Contains(t, parked, "proposal_reason:")
+	assert.Contains(t, parked, "client-content marker")
+	assert.Contains(t, parked, "ACME-CLIENT kickoff", "the note body is preserved")
 }

-func TestProcessDir_ANoteInAClientWingFolderIsParked(t *testing.T) {
+func TestProcessDir_ATypoedWingFolderIsParkedAndNeverCreated(t *testing.T) {
 	var llmCalls atomic.Int32
-	cfg, brainDir := wingTestCfg(t, wingResolver(&stubClassifier{}, stubScorer{}), &llmCalls)
-	put(t, brainDir, "client-x/secret.md", "Client material.")
+	cfg, brainDir := wingTestCfg(t, router, &llmCalls)
+	makeWing(t, brainDir, "homelab")
+	put(t, brainDir, "hoemlab/n.md", "Note.")

 	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))

-	assert.Zero(t, llmCalls.Load())
-	assert.False(t, has(brainDir, "wiki/client-x"), "nothing is ever written into an ineligible wing")
-	assert.True(t, has(brainDir, "raw/needs-review/secret.md"))
-}
-
-func TestProcessDir_ClassifierFailureParksTheNote(t *testing.T) {
-	var llmCalls atomic.Int32
-	cfg, brainDir := wingTestCfg(t, wingResolver(&stubClassifier{err: errors.New("llm down")}, stubScorer{}), &llmCalls)
-	put(t, brainDir, "n.md", "Note.")
-
-	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))
-
-	assert.Zero(t, llmCalls.Load())
+	assert.False(t, has(brainDir, "wiki/hoemlab"))
 	assert.True(t, has(brainDir, "raw/needs-review/n.md"))
+	assert.Zero(t, llmCalls.Load())
 }

 func TestProcessDir_ParkedNotesAreNotReprocessed(t *testing.T) {
 	var llmCalls atomic.Int32
-	clf := &stubClassifier{s: wing.Suggestion{Wing: "radar", Confidence: 0.99}}
-	cfg, brainDir := wingTestCfg(t, wingResolver(clf, stubScorer{"radar": 3}), &llmCalls)
+	cfg, brainDir := wingTestCfg(t, router, &llmCalls)
 	put(t, brainDir, "needs-review/waiting.md", "---\nproposed_wing: radar\n---\nA parked note.")

 	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))

-	assert.Zero(t, clf.calls.Load(), "needs-review/ is a human queue, like rejected/")
+	assert.Zero(t, llmCalls.Load(), "needs-review/ is a human queue, like rejected/")
 	assert.True(t, has(brainDir, "raw/needs-review/waiting.md"))
 }

@@ -147,141 +156,68 @@ func TestProcessDir_WithoutAResolverTheRetiredLayoutIsUnchanged(t *testing.T) {
 	assert.True(t, has(brainDir, "wiki/sources/plain.md"))
 }

-// The reason comes from an LLM and ends up in frontmatter: a newline in it must
-// not be able to start a new key (PR #147: a title once forged `origin:`).
-func TestProcessDir_AProposalReasonCannotForgeFrontmatterKeys(t *testing.T) {
+// The reason comes from file and folder names and ends up in frontmatter: a
+// newline in it must not be able to start a new key (PR #147: a title once
+// forged `origin:`).
+func TestProcessDir_AFolderNameCannotForgeFrontmatterKeys(t *testing.T) {
 	var llmCalls atomic.Int32
-	// A classifier error is the path by which model text reaches the reason.
-	clf := &stubClassifier{err: errors.New("bad reply\norigin: trusted\nwing: homelab")}
-	cfg, brainDir := wingTestCfg(t, wingResolver(clf, stubScorer{}), &llmCalls)
-	put(t, brainDir, "forge.md", "Note.")
+	cfg, brainDir := wingTestCfg(t, router, &llmCalls)
+	put(t, brainDir, "radar\nproposal_confidence: 0.99\nwing: homelab/forge.md", "Note.")

 	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))

-	parked, err := os.ReadFile(filepath.Join(brainDir, "raw", "needs-review", "forge.md"))
+	entries, err := os.ReadDir(filepath.Join(brainDir, "raw", "needs-review"))
 	require.NoError(t, err)
-	assert.NotContains(t, string(parked), "\norigin: trusted", "no injected key at line start")
-	assert.NotContains(t, string(parked), "\nwing: homelab")
+	require.Len(t, entries, 1)
+	b := parkedBody(t, brainDir, entries[0].Name())
+	assert.Equal(t, 1, linesStartingWith(b, "proposal_confidence:"), "exactly one confidence key at line start")
+	assert.Equal(t, 0, linesStartingWith(b, "wing:"), "no injected wing key")
+	assert.Equal(t, 0, linesStartingWith(b, "proposed_wing:"), "a non-plain wing name is never a proposal")
 }

-// Syncthing can bring a removed note back (an offline peer, a restored backup).
-// The source-hash drift check must keep that from costing a second extraction.
-func TestProcessDir_ANoteThatReappearsUnchangedIsNotExtractedAgain(t *testing.T) {
+func TestProcessDir_ANotesOwnProposalKeysDoNotOutrankTheRouters(t *testing.T) {
 	var llmCalls atomic.Int32
-	cfg, brainDir := wingTestCfg(t, wingResolver(&stubClassifier{}, stubScorer{}), &llmCalls)
-
-	put(t, brainDir, "radar/talk.md", "The same talk, byte for byte.")
-	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))
-	require.Equal(t, int32(1), llmCalls.Load(), "positive control: the first drop is extracted")
-	require.False(t, has(brainDir, "raw/radar/talk.md"))
-
-	put(t, brainDir, "radar/talk.md", "The same talk, byte for byte.") // the peer sends it back
-	require.Empty(t, processDir(context.Background(), cfg, "2026-10-21"))
-
-	assert.Equal(t, int32(1), llmCalls.Load(), "an unchanged source is not extracted twice")
-	assert.False(t, has(brainDir, "raw/radar/talk.md"), "and inbox zero still holds")
-}
-
-func TestProcessDir_ANoteThatReappearsChangedIsExtractedAgain(t *testing.T) {
-	var llmCalls atomic.Int32
-	cfg, brainDir := wingTestCfg(t, wingResolver(&stubClassifier{}, stubScorer{}), &llmCalls)
-
-	put(t, brainDir, "radar/talk.md", "Version one.")
-	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))
-	put(t, brainDir, "radar/talk.md", "Version two, edited.")
-	require.Empty(t, processDir(context.Background(), cfg, "2026-10-21"))
-
-	assert.Equal(t, int32(2), llmCalls.Load(), "a real edit must still be picked up")
-}
-
-// The parked copy is the only copy once the original is retired, so two notes
-// that share a name must both survive.
-func TestProcessDir_SameNamedNotesAreAllParkedNoneOverwritten(t *testing.T) {
-	var llmCalls atomic.Int32
-	cfg, brainDir := wingTestCfg(t, wingResolver(&stubClassifier{}, stubScorer{}), &llmCalls)
-	for i, body := range []string{"ONE", "TWO", "THREE", "FOUR"} {
-		put(t, brainDir, filepath.Join("u"+string(rune('1'+i)), "x.md"), body)
-	}
-	// Unknown subfolders: each is an exception, all named x.md.
-	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))
-
-	files, err := filepath.Glob(filepath.Join(brainDir, "raw", "needs-review", "*.md"))
-	require.NoError(t, err)
-	var all string
-	for _, f := range files {
-		b, _ := os.ReadFile(f)
-		all += string(b)
-	}
-	for _, body := range []string{"ONE", "TWO", "THREE", "FOUR"} {
-		assert.Contains(t, all, body, "note %s must not have been overwritten", body)
-	}
-	assert.Len(t, files, 4)
-}
-
-// proposed_wing comes from a model reply or a folder name. It must never be
-// able to start another key, and the note's own proposal keys must not outrank
-// the resolver's (frontmatter.get is first-wins).
-func TestProcessDir_AHostileWingCannotForgeTheProposal(t *testing.T) {
-	var llmCalls atomic.Int32
-	hostile := "radar\nproposal_confidence: 0.99\nproposal_reason: \"approved by operator\""
-	clf := &stubClassifier{s: wing.Suggestion{Wing: hostile, Confidence: 1}}
-	cfg, brainDir := wingTestCfg(t, wingResolver(clf, stubScorer{"radar": 3}), &llmCalls)
-	put(t, brainDir, "n.md", "Note.")
+	cfg, brainDir := wingTestCfg(t, router, &llmCalls)
+	put(t, brainDir, "n.md", "---\nproposed_wing: homelab\nproposal_confidence: 1.00\nproposal_reason: \"self-approved\"\n---\nACME-CLIENT body.")

 	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))

-	b, err := os.ReadFile(filepath.Join(brainDir, "raw", "needs-review", "n.md"))
-	require.NoError(t, err)
-	assert.NotContains(t, string(b), "\nproposal_confidence: 0.99")
-	assert.NotContains(t, string(b), "approved by operator\"\n")
-	assert.Equal(t, 1, linesStartingWith(string(b), "proposal_confidence:"), "exactly one confidence key at line start")
-}
-
-func TestProcessDir_ANotesOwnProposalKeysDoNotOutrankTheResolvers(t *testing.T) {
-	var llmCalls atomic.Int32
-	cfg, brainDir := wingTestCfg(t, wingResolver(&stubClassifier{}, stubScorer{}), &llmCalls)
-	put(t, brainDir, "n.md", "---\nproposed_wing: homelab\nproposal_confidence: 1.00\nproposal_reason: \"self-approved\"\n---\nBody.")
-
-	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))
-
-	b, _ := os.ReadFile(filepath.Join(brainDir, "raw", "needs-review", "n.md"))
-	assert.NotContains(t, string(b), "self-approved")
-	assert.Equal(t, 1, linesStartingWith(string(b), "proposal_reason:"))
+	b := parkedBody(t, brainDir, "n.md")
+	assert.NotContains(t, b, "self-approved")
+	assert.Equal(t, 1, linesStartingWith(b, "proposal_reason:"))
+	assert.Equal(t, 0, linesStartingWith(b, "proposed_wing:"))
 }

 func TestProcessDir_ACRLFNoteWithAWingKeyIsStillRead(t *testing.T) {
 	var llmCalls atomic.Int32
-	clf := &stubClassifier{}
-	cfg, brainDir := wingTestCfg(t, wingResolver(clf, stubScorer{}), &llmCalls)
+	cfg, brainDir := wingTestCfg(t, router, &llmCalls)
+	makeWing(t, brainDir, "radar")
 	put(t, brainDir, "n.md", "---\r\nwing: radar\r\n---\r\nBody.\r\n")

 	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))

 	assert.True(t, has(brainDir, "wiki/radar/sources/n.md"), "the declared wing is honoured")
-	assert.Zero(t, clf.calls.Load())
 }

-// linesStartingWith counts frontmatter-style keys: a key quoted inside another
-// value is not at the start of a line and is not a key.
-func linesStartingWith(s, prefix string) int {
-	n := 0
-	for _, l := range strings.Split(s, "\n") {
-		if strings.HasPrefix(l, prefix) {
-			n++
-		}
-	}
-	return n
+// editingPlacer rewrites the note while the placement decision is being made,
+// then parks it: the realistic window is a slow decision with Syncthing
+// delivering a newer version meanwhile.
+type editingPlacer struct{ edit func() }
+
+func (e editingPlacer) Resolve(context.Context, wing.Note) wing.Decision {
+	e.edit()
+	return wing.Decision{Source: wing.Exception, Reason: "test: parked after an edit"}
 }

-// Resolving costs an LLM call. If Syncthing delivers a newer version of the note
-// meanwhile, deleting the original loses that version: the parked copy is stale.
-func TestProcessDir_ANoteEditedWhileTheResolverRunsIsNotDeleted(t *testing.T) {
+func TestProcessDir_ANoteEditedWhileItIsBeingPlacedIsNotDeleted(t *testing.T) {
 	var llmCalls atomic.Int32
 	var notePath string
-	clf := &editingClassifier{}
-	cfg, brainDir := wingTestCfg(t, wingResolver(clf, stubScorer{}), &llmCalls)
+	cfg, brainDir := wingTestCfg(t, func(string) wing.Placer {
+		return editingPlacer{edit: func() {
+			require.NoError(t, os.WriteFile(notePath, []byte("NEWER and longer version"), 0o644))
+		}}
+	}, &llmCalls)
 	notePath = filepath.Join(brainDir, "raw", "n.md")
-	clf.edit = func() { require.NoError(t, os.WriteFile(notePath, []byte("NEWER and longer version"), 0o644)) }
 	put(t, brainDir, "n.md", "ORIGINAL")

 	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))
@@ -291,21 +227,14 @@ func TestProcessDir_ANoteEditedWhileTheResolverRunsIsNotDeleted(t *testing.T) {
 	assert.Equal(t, "NEWER and longer version", string(got))
 }

-type editingClassifier struct{ edit func() }
-
-func (c *editingClassifier) Classify(context.Context, string, []string) (wing.Suggestion, error) {
-	c.edit()
-	return wing.Suggestion{}, nil
-}
-
 // A planted symlink at raw/needs-review must not redirect a parked note out of
 // the brain, nor lose it from the review queue.
 func TestProcessDir_AParkedNoteIsNeverWrittenThroughASymlinkedNeedsReview(t *testing.T) {
 	var llmCalls atomic.Int32
-	cfg, brainDir := wingTestCfg(t, wingResolver(&stubClassifier{}, stubScorer{}), &llmCalls)
+	cfg, brainDir := wingTestCfg(t, router, &llmCalls)
 	outside := t.TempDir()
 	require.NoError(t, os.Symlink(outside, filepath.Join(brainDir, "raw", "needs-review")))
-	put(t, brainDir, "n.md", "Note.")
+	put(t, brainDir, "n.md", "ACME-CLIENT note.")

 	errs := processDir(context.Background(), cfg, "2026-10-20")

@@ -331,10 +260,57 @@ func TestWithProposal_ANonFenceDashLineDoesNotCloseTheBlock(t *testing.T) {
 	assert.NotContains(t, strings.Join(lines[:closing], "\n"), "foo: bar", "the unfenced note is body, not part of the block")
 }

-func mustJSONPages(pages []pipeline.RawPage) string {
-	b, err := json.Marshal(pages)
-	if err != nil {
-		panic(err)
+// The parked copy is the only copy once the original is retired, so two notes
+// that share a name must both survive.
+func TestProcessDir_SameNamedNotesAreAllParkedNoneOverwritten(t *testing.T) {
+	var llmCalls atomic.Int32
+	cfg, brainDir := wingTestCfg(t, router, &llmCalls)
+	for i, body := range []string{"ONE", "TWO", "THREE", "FOUR"} {
+		put(t, brainDir, filepath.Join("typo"+string(rune('1'+i)), "x.md"), body)
 	}
-	return string(b)
+	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))
+
+	files, err := filepath.Glob(filepath.Join(brainDir, "raw", "needs-review", "*.md"))
+	require.NoError(t, err)
+	var all string
+	for _, f := range files {
+		b, _ := os.ReadFile(f)
+		all += string(b)
+	}
+	for _, body := range []string{"ONE", "TWO", "THREE", "FOUR"} {
+		assert.Contains(t, all, body, "note %s must not have been overwritten", body)
+	}
+	assert.Len(t, files, 4)
+}
+
+// Syncthing can bring a removed note back (an offline peer, a restored backup).
+// The source-hash drift check must keep that from costing a second extraction.
+func TestProcessDir_ANoteThatReappearsUnchangedIsNotExtractedAgain(t *testing.T) {
+	var llmCalls atomic.Int32
+	cfg, brainDir := wingTestCfg(t, router, &llmCalls)
+	makeWing(t, brainDir, "radar")
+
+	put(t, brainDir, "radar/talk.md", "The same talk, byte for byte.")
+	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))
+	require.Equal(t, int32(1), llmCalls.Load(), "positive control: the first drop is extracted")
+	require.False(t, has(brainDir, "raw/radar/talk.md"))
+
+	put(t, brainDir, "radar/talk.md", "The same talk, byte for byte.") // the peer sends it back
+	require.Empty(t, processDir(context.Background(), cfg, "2026-10-21"))
+
+	assert.Equal(t, int32(1), llmCalls.Load(), "an unchanged source is not extracted twice")
+	assert.False(t, has(brainDir, "raw/radar/talk.md"), "and inbox zero still holds")
+}
+
+func TestProcessDir_ANoteThatReappearsChangedIsExtractedAgain(t *testing.T) {
+	var llmCalls atomic.Int32
+	cfg, brainDir := wingTestCfg(t, router, &llmCalls)
+	makeWing(t, brainDir, "radar")
+
+	put(t, brainDir, "radar/talk.md", "Version one.")
+	require.Empty(t, processDir(context.Background(), cfg, "2026-10-20"))
+	put(t, brainDir, "radar/talk.md", "Version two, edited.")
+	require.Empty(t, processDir(context.Background(), cfg, "2026-10-21"))
+
+	assert.Equal(t, int32(2), llmCalls.Load(), "a real edit must still be picked up")
 }