feat(notes): titlen er første linje, og # foreslår projektet

Titlen var udledt én gang og derefter ladt i fred, så den gik i stå i det øjeblik
nogen skrev begyndelsen om — en note med overskriften "Ny note" stod i listen som
"fdgfgfgh", hvilket var, hvad dens første linje havde været nogle rettelser
tidligere. Den udledes nu ved hver gemning, og ingen kan sætte den ved siden af
teksten: kolonnen er en kopi af kroppen, ikke et felt derudover. Feltet er væk fra
både HTTP-fladen og MCP-værktøjerne, for et felt, serveren ignorerer, er et løfte,
den ikke kan holde.

Skriver man #Kaf, foreslås #Kaffebaren. Ordet læses fra den tekstknude, markøren
står i, og ikke fra hele dokumentet — en note kan nævne tyve projekter, og kun det
under markøren er ved at blive skrevet. Listen ejer piletasterne og retur, mens
den er åben, som enhver anden fuldførelse.

Og under feltet står nu, hvad teksten forstår: # projekt, [[en anden note]], ⌘B,
⌘U. Samme idé som linjen under hurtig tilføjelse — en note er det andet sted i
programmet, hvor det, man skriver, bliver læst for betydning.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

internal/httpapi/mcp_handlers.go

@@ -530,8 +530,7 @@ func (s *Server) registerNoteTools(m *mcp.Server) {
 			"links to a note by its title. Use this to bring notes in from elsewhere — " +
 			"Apple Notes, OneNote, a folder of Markdown — one call per note.",
 		InputSchema: mcp.Schema(map[string]any{
-			"body":       mcp.Str("The note as Markdown. #Projekt and [[note]] become links."),
-			"title":      mcp.Str("A title. Left out, the first line of the body becomes it."),
+			"body":       mcp.Str("The note as Markdown. Its first line becomes the title, so start with one. #Projekt and [[note]] become links."),
 			"project_id": mcp.Str("File it under a project by id. Usually unnecessary — a #tag in the body does the same and is what a person would type."),
 			"pinned":     mcp.Bool("Keep it at the top of the list."),
 		}),
@@ -545,8 +544,7 @@ func (s *Server) registerNoteTools(m *mcp.Server) {
 			"removed.",
 		InputSchema: mcp.Schema(map[string]any{
 			"note_id": mcp.Str("Which note."),
-			"body":    mcp.Str("The whole new text, as Markdown."),
-			"title":   mcp.Str("A new title."),
+			"body":    mcp.Str("The whole new text, as Markdown. The title follows its first line."),
 			"pinned":  mcp.Bool("Pin it or unpin it."),
 		}),
 	}, s.mcpUpdateNote)
@@ -604,7 +602,6 @@ func (s *Server) mcpMayRead(ctx context.Context, n *store.Note, userID string) b
 func (s *Server) mcpCreateNote(ctx context.Context, userID string, args json.RawMessage) (any, error) {
 	var params struct {
 		Body      string `json:"body"`
-		Title     string `json:"title"`
 		ProjectID string `json:"project_id"`
 		Pinned    bool   `json:"pinned"`
 	}
@@ -612,7 +609,6 @@ func (s *Server) mcpCreateNote(ctx context.Context, userID string, args json.Raw
 
 	n := &store.Note{
 		CreatedBy: userID,
-		Title:     params.Title,
 		Body:      params.Body,
 		Pinned:    params.Pinned,
 	}
@@ -638,7 +634,6 @@ func (s *Server) mcpUpdateNote(ctx context.Context, userID string, args json.Raw
 	var params struct {
 		NoteID string  `json:"note_id"`
 		Body   *string `json:"body"`
-		Title  *string `json:"title"`
 		Pinned *bool   `json:"pinned"`
 	}
 	_ = json.Unmarshal(args, &params)
@@ -659,9 +654,6 @@ func (s *Server) mcpUpdateNote(ctx context.Context, userID string, args json.Raw
 	if params.Body != nil {
 		n.Body = *params.Body
 	}
-	if params.Title != nil {
-		n.Title = *params.Title
-	}
 	if params.Pinned != nil {
 		n.Pinned = *params.Pinned
 	}

internal/httpapi/notes_handlers.go

@@ -97,9 +97,10 @@ func (s *Server) handleGetNote(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, n)
 }
 
+// No title. It is the note's first line and is derived on every save — a field
+// here would be a promise this server cannot keep.
 type noteBody struct {
 	ProjectID *string `json:"project_id"`
-	Title     *string `json:"title"`
 	Body      *string `json:"body"`
 	Pinned    *bool   `json:"pinned"`
 }
@@ -119,9 +120,6 @@ func (s *Server) handleCreateNote(w http.ResponseWriter, r *http.Request) {
 		}
 		n.ProjectID = *body.ProjectID
 	}
-	if body.Title != nil {
-		n.Title = *body.Title
-	}
 	if body.Body != nil {
 		n.Body = *body.Body
 	}
@@ -164,9 +162,6 @@ func (s *Server) handleUpdateNote(w http.ResponseWriter, r *http.Request) {
 		}
 		n.ProjectID = *body.ProjectID
 	}
-	if body.Title != nil {
-		n.Title = *body.Title
-	}
 	if body.Body != nil {
 		n.Body = *body.Body
 	}

internal/store/notes.go

@@ -62,11 +62,12 @@ func (db *DB) SaveNote(ctx context.Context, n *Note) error {
 	}
 	n.UpdatedAt = now
 
-	// A note with no title takes its first line, the way Apple Notes does. A list
-	// of untitled notes is a list nobody can read.
-	if strings.TrimSpace(n.Title) == "" {
-		n.Title = firstLine(n.Body)
-	}
+	// The title is always the first line, the way Apple Notes does it. Not "when it
+	// is empty": derived once and then left alone, it goes stale the moment somebody
+	// rewrites the opening of a note, and the list ends up calling a note by a name
+	// that is nowhere in it. The column is a cache of the body, not a field beside
+	// it, and every caller gets the same answer because none of them can set it.
+	n.Title = firstLine(n.Body)
 
 	return db.Tx(ctx, func(tx *sql.Tx) error {
 		var projectID any

internal/store/notes_test.go

@@ -118,10 +118,10 @@ func TestNotesAreFoundInEitherSpelling(t *testing.T) {
 	db, userID := sealedStore(t)
 	ctx := context.Background()
 
+	// The title is the first line now, so that is where it goes.
 	if err := db.SaveNote(ctx, &Note{
 		CreatedBy: userID,
-		Title:     "Grønt regnskab",
-		Body:      "Målt på årsbasis for Århus.",
+		Body:      "Grønt regnskab\n\nMålt på årsbasis for Århus.",
 	}); err != nil {
 		t.Fatal(err)
 	}
@@ -245,3 +245,47 @@ func TestTheProjectCountIsWhatIsLeft(t *testing.T) {
 		t.Errorf("after deleting one, the count is %d, want 1", n)
 	}
 }
+
+// The title follows the first line, always — not only the first time.
+//
+// Derived once and then left alone, it goes stale the moment somebody rewrites
+// the opening, and the list ends up calling a note by a name that is nowhere in
+// it. That is exactly what happened: a note headed "Ny note" was listed as
+// "fdgfgfgh", which was what its first line had been some edits ago.
+func TestTheTitleFollowsTheFirstLine(t *testing.T) {
+	db, userID := sealedStore(t)
+	ctx := context.Background()
+
+	n := &Note{CreatedBy: userID, Body: "Første udgave\n\nnoget tekst"}
+	if err := db.SaveNote(ctx, n); err != nil {
+		t.Fatal(err)
+	}
+	if n.Title != "Første udgave" {
+		t.Fatalf("title started as %q", n.Title)
+	}
+
+	n.Body = "# Ny note\n\nDette er mit nye noteprogram"
+	if err := db.SaveNote(ctx, n); err != nil {
+		t.Fatal(err)
+	}
+	if n.Title != "Ny note" {
+		t.Errorf("after rewriting the first line the title is %q", n.Title)
+	}
+
+	back, err := db.Note(ctx, n.ID)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if back.Title != "Ny note" {
+		t.Errorf("the stored title is %q", back.Title)
+	}
+
+	// And a title cannot be set beside the text, because then the two can disagree.
+	n.Title = "noget andet"
+	if err := db.SaveNote(ctx, n); err != nil {
+		t.Fatal(err)
+	}
+	if n.Title != "Ny note" {
+		t.Errorf("a title set by hand survived as %q", n.Title)
+	}
+}