fix(context): read documented '## P1 — Today' plain tasks in live context (#2186) (#3124)

resolveTodayTasks only matched a bare '## Today' heading and bold-prefixed
'- [ ] **task**' lines, while the daily-task-manager skill's documented
Output Format writes '## P1 — Today' with plain '- [ ] task' lines — so
documented writes surfaced zero tasks in live context.

Reader now accepts both heading forms and both line forms, two-step: the
legacy bold prefix extracts just the task name (dropping trailing metadata),
falling back to the plain full-line form.

Salvaged from PR #2188 (reader-side half). The skill-doc rewrites in that PR
are dropped: master #2938 kept ops/ synced and made put_page write-through
durable, so the 'gbrain get/put ops/tasks' docs are correct as-is. The PR's
single-regex line matcher is replaced with the two-step match because its
alternation captured '**name** — metadata' verbatim for bold lines.

Takeover of #2188. Fixes #2186.

Co-authored-by: Garry Tan <garrytan@gmail.com>
Co-authored-by: caioribeiroclw-pixel <caioribeiroclw-pixel@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

src/core/context-engine.ts

@@ -453,7 +453,14 @@ function resolveActivity(
  * every `assemble()` call. 1 MB is generous for a human-edited task list. */
 const MAX_TASKS_MD_BYTES = 1_000_000;
 
-/** Extract open tasks from ops/tasks.md "## Today" section. */
+/** Extract open tasks from ops/tasks.md Today section.
+ *
+ * The daily-task-manager skill's documented Output Format uses priority
+ * headings (`## P1 — Today`) with plain `- [ ] task` lines; older fixtures
+ * used a bare `## Today` heading with bold task names. Accept both so the
+ * live-context reader matches the documented writer contract instead of
+ * silently surfacing no tasks (#2186).
+ */
 function resolveTodayTasks(workspaceDir: string): string[] {
   try {
     const path = join(workspaceDir, 'ops', 'tasks.md');
@@ -461,14 +468,18 @@ function resolveTodayTasks(workspaceDir: string): string[] {
     // statSync throws if the file doesn't exist; that lands in the outer catch.
     if (statSync(path).size > MAX_TASKS_MD_BYTES) return [];
     const raw = readFileSync(path, 'utf8');
-    const todayMatch = raw.match(/## Today[\s\S]*?(?=\n## |$)/);
+    const todayMatch = raw.match(/^##\s+(?:P\d\s*[—–-]\s*)?Today\b[\s\S]*?(?=\n##\s|$(?![\s\S]))/m);
     if (!todayMatch) return [];
 
     const lines = todayMatch[0].split('\n');
     const open: string[] = [];
     for (const line of lines) {
-      // Match unchecked task lines: - [ ] **task name** ...
-      const m = line.match(/^\s*-\s*\[ \]\s*\*\*(.+?)\*\*/);
+      // Match unchecked task lines. Legacy bold form first (extracts just
+      // the task name, dropping trailing metadata), then the documented
+      // plain form (whole line body is the task).
+      const m =
+        line.match(/^\s*-\s*\[ \]\s*\*\*(.+?)\*\*/) ??
+        line.match(/^\s*-\s*\[ \]\s*(.+?)\s*$/);
       if (m) open.push(sanitizeForPrompt(m[1].trim()));
     }
     return open.slice(0, 5); // cap at 5 to keep prompt lean

test/context-engine.test.ts

@@ -322,6 +322,28 @@ describe('gbrain-context engine', () => {
     expect(result.systemPromptAddition).not.toContain('Something later');
   });
 
+  it('injects documented "## P1 — Today" plain tasks from ops/tasks.md (#2186)', async () => {
+    tmpDir = makeWorkspace({
+      heartbeat: { garryAwake: true },
+      tasks: `# Tasks\n\n## P0 — Urgent\n- [ ] **Escalate outage**\n\n## P1 — Today\n- [ ] Call Alice about launch plan\n- [ ] **Review Bob contract** — due Friday\n- [x] Completed item\n\n## P2 — This Week\n- [ ] Should not surface`,
+    });
+    const engine = createGBrainContextEngine({ workspaceDir: tmpDir });
+
+    const result = await engine.assemble({
+      sessionId: 'test-session',
+      messages: [],
+    });
+
+    expect(result.systemPromptAddition).toContain('Open tasks');
+    expect(result.systemPromptAddition).toContain('Call Alice about launch plan');
+    // Bold form still extracts just the task name, not trailing metadata.
+    expect(result.systemPromptAddition).toContain('Review Bob contract');
+    expect(result.systemPromptAddition).not.toContain('due Friday');
+    expect(result.systemPromptAddition).not.toContain('Escalate outage');
+    expect(result.systemPromptAddition).not.toContain('Completed item');
+    expect(result.systemPromptAddition).not.toContain('Should not surface');
+  });
+
   it('no activity section when calendar is empty and no tasks', async () => {
     tmpDir = makeWorkspace({
       heartbeat: { garryAwake: true },