feat(board): fix gaps A+B — full task status transitions + handoff who→whom

GAP A: extend PATCH /tasks/:id to support all five TaskStatus values
(open, in_progress, review, done, cancelled). Add reviewTask, cancelTask,
reopenTask helpers in taskService. Claim semantics preserved: in_progress
requires assignedTo. Board columns for review and cancelled now reachable
via the API.

GAP B: index fromRole/toRole/fromAgent/toAgent on handoff upsert. SQLite
migration guard adds columns to pre-existing DBs without data loss. Board
renderHandoffs shows "fromRole[@agent] → toRole[@agent]" via → arrow.
GET /handoffs now carries the routing fields in every index entry.

Tests: +14 (56 total, 21 files, all green). Covers every new status
transition, index field presence, board markup assertions, and a guard for
the claim-without-assignedTo 400.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/core/index.ts

@@ -15,6 +15,11 @@ export interface IndexEntry {
   role?: string;
   assignedTo?: string;
   tags?: string;
+  // Handoff-specific routing fields
+  fromRole?: string;
+  toRole?: string;
+  fromAgent?: string;
+  toAgent?: string;
 }
 
 export class Index {
@@ -36,10 +41,24 @@ export class Index {
         status TEXT,
         role TEXT,
         assignedTo TEXT,
-        tags TEXT
+        tags TEXT,
+        fromRole TEXT,
+        toRole TEXT,
+        fromAgent TEXT,
+        toAgent TEXT
       );
       CREATE VIRTUAL TABLE IF NOT EXISTS search USING fts5(id, title, content);
     `);
+
+    // Migration: add handoff-routing columns to existing DBs that pre-date this schema.
+    const existingCols = new Set(
+      (this.db.pragma('table_info(entities)') as Array<{ name: string }>).map((r) => r.name),
+    );
+    for (const col of ['fromRole', 'toRole', 'fromAgent', 'toAgent']) {
+      if (!existingCols.has(col)) {
+        this.db.exec(`ALTER TABLE entities ADD COLUMN ${col} TEXT`);
+      }
+    }
   }
 
   upsert(entry: IndexEntry): void {
@@ -48,16 +67,21 @@ export class Index {
       role: null,
       assignedTo: null,
       tags: null,
+      fromRole: null,
+      toRole: null,
+      fromAgent: null,
+      toAgent: null,
       ...entry,
     };
 
     const insert = this.db.prepare(`
-      INSERT INTO entities (id, type, title, content, filePath, createdAt, updatedAt, status, role, assignedTo, tags)
-      VALUES (@id, @type, @title, @content, @filePath, @createdAt, @updatedAt, @status, @role, @assignedTo, @tags)
+      INSERT INTO entities (id, type, title, content, filePath, createdAt, updatedAt, status, role, assignedTo, tags, fromRole, toRole, fromAgent, toAgent)
+      VALUES (@id, @type, @title, @content, @filePath, @createdAt, @updatedAt, @status, @role, @assignedTo, @tags, @fromRole, @toRole, @fromAgent, @toAgent)
       ON CONFLICT(id) DO UPDATE SET
         type=@type, title=@title, content=@content, filePath=@filePath,
         createdAt=@createdAt, updatedAt=@updatedAt, status=@status, role=@role,
-        assignedTo=@assignedTo, tags=@tags
+        assignedTo=@assignedTo, tags=@tags,
+        fromRole=@fromRole, toRole=@toRole, fromAgent=@fromAgent, toAgent=@toAgent
     `);
     insert.run(params);
 

src/core/services/handoffService.ts

@@ -34,6 +34,10 @@ export function createHandoff(cwd: string, options: Partial<Handoff> = {}): Hand
     filePath,
     createdAt: handoff.createdAt,
     updatedAt: handoff.createdAt,
+    fromRole: handoff.fromRole,
+    toRole: handoff.toRole,
+    fromAgent: handoff.fromAgent,
+    toAgent: handoff.toAgent,
   });
   index.close();
 

src/core/services/taskService.ts

@@ -63,6 +63,18 @@ export function doneTask(cwd: string, id: string): Task {
   return updateTask(cwd, id, { status: 'done' });
 }
 
+export function reviewTask(cwd: string, id: string): Task {
+  return updateTask(cwd, id, { status: 'review' });
+}
+
+export function cancelTask(cwd: string, id: string): Task {
+  return updateTask(cwd, id, { status: 'cancelled' });
+}
+
+export function reopenTask(cwd: string, id: string): Task {
+  return updateTask(cwd, id, { status: 'open' });
+}
+
 function toIndexEntry(task: Task, filePath: string) {
   return {
     id: task.id,

src/server/board.ts

@@ -153,6 +153,8 @@ export function renderBoardHtml(): string {
     .row:first-of-type { border-top: 0; }
     .row .id { color: var(--muted); font-size: 11px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }
     .row .what { flex: 1; }
+    .row .who-cell { font-size: 12px; white-space: nowrap; display: flex; align-items: baseline; gap: 4px; }
+    .row .who { display: flex; align-items: baseline; gap: 4px; color: var(--accent); font-size: 11px; white-space: nowrap; }
     .row .when { color: var(--muted); font-size: 11px; white-space: nowrap; }
   </style>
 </head>
@@ -230,6 +232,14 @@ ${columnSkeleton()}
           : '<div class="empty">—</div>';
       });
     }
+    function handoffRoute(h) {
+      // Build "fromRole[@fromAgent] → toRole[@toAgent]" label
+      var from = esc(h.fromRole || '?');
+      var to   = esc(h.toRole   || '?');
+      if (h.fromAgent) from += '<span class="badge agent">@' + esc(h.fromAgent) + '</span>';
+      if (h.toAgent)   to   += '<span class="badge agent">@' + esc(h.toAgent)   + '</span>';
+      return '<span class="who">' + from + ' &rarr; ' + to + '</span>';
+    }
     function renderHandoffs(items) {
       var el = document.getElementById('handoffs');
       if (!items || !items.length) { el.innerHTML = '<div class="empty">none</div>'; return; }
@@ -237,6 +247,7 @@ ${columnSkeleton()}
         return '<div class="row">' +
           '<span class="id">' + esc(h.id) + '</span>' +
           '<span class="what">' + esc(h.title) + '</span>' +
+          '<span class="who-cell">' + handoffRoute(h) + '</span>' +
           '<span class="when">' + esc(ago(h.createdAt)) + '</span>' +
           '</div>';
       }).join('');

src/server/routes.ts

@@ -1,5 +1,5 @@
 import { FastifyInstance, FastifyReply } from 'fastify';
-import { createTask, listTasks, getTask, claimTask, doneTask } from '../core/services/taskService.js';
+import { createTask, listTasks, getTask, claimTask, doneTask, reviewTask, cancelTask, reopenTask } from '../core/services/taskService.js';
 import { createHandoff, listHandoffs, getHandoff } from '../core/services/handoffService.js';
 import { createDecision, listDecisions } from '../core/services/decisionService.js';
 import { addMemory, searchMemory, listMemory } from '../core/services/memoryService.js';
@@ -53,13 +53,22 @@ export async function registerRoutes(app: FastifyInstance, cwd: string): Promise
   app.patch('/tasks/:id', async (request, reply) => {
     const { id } = request.params as { id: string };
     const patch = request.body as Partial<Task>;
-    if (patch.status === 'in_progress' && patch.assignedTo) {
+
+    switch (patch.status) {
+      case 'in_progress':
+        if (!patch.assignedTo) return badRequest(reply, 'assignedTo is required to claim a task (in_progress)');
         return claimTask(cwd, id, patch.assignedTo);
-    }
-    if (patch.status === 'done') {
+      case 'done':
         return doneTask(cwd, id);
+      case 'review':
+        return reviewTask(cwd, id);
+      case 'cancelled':
+        return cancelTask(cwd, id);
+      case 'open':
+        return reopenTask(cwd, id);
+      default:
+        return badRequest(reply, 'Unsupported patch: status must be one of open, in_progress, review, done, cancelled');
     }
-    return badRequest(reply, 'Unsupported patch');
   });
 
   app.get('/handoffs', async () => listHandoffs(cwd));

tests/handoffService.test.ts

@@ -16,4 +16,34 @@ describe('handoffService', () => {
     expect(getHandoff(cwd, h.id).handoff.summary).toBe('s');
     expect(listHandoffs(cwd)).toHaveLength(1);
   });
+
+  it('listHandoffs carries fromRole and toRole in the index entry', () => {
+    createHandoff(cwd, {
+      fromRole: 'architect',
+      toRole: 'implementer',
+      summary: 'Hand over design',
+      context: 'done',
+    });
+    const items = listHandoffs(cwd);
+    expect(items).toHaveLength(1);
+    expect(items[0].fromRole).toBe('architect');
+    expect(items[0].toRole).toBe('implementer');
+    // agent names default to undefined when not supplied
+    expect(items[0].fromAgent == null).toBe(true);
+    expect(items[0].toAgent == null).toBe(true);
+  });
+
+  it('listHandoffs carries fromAgent and toAgent when supplied', () => {
+    createHandoff(cwd, {
+      fromRole: 'reviewer',
+      toRole: 'implementer',
+      fromAgent: 'claude',
+      toAgent: 'codex',
+      summary: 'Review complete',
+      context: 'lgtm',
+    });
+    const items = listHandoffs(cwd);
+    expect(items[0].fromAgent).toBe('claude');
+    expect(items[0].toAgent).toBe('codex');
+  });
 });

tests/server.test.ts

@@ -47,6 +47,48 @@ describe('server routes', () => {
     expect(res.statusCode).toBe(400);
   });
 
+  it('returns 400 when claiming without assignedTo', async () => {
+    await app.inject({ method: 'POST', url: '/tasks', payload: { title: 'A', role: 'implementer' } });
+    const res = await app.inject({ method: 'PATCH', url: '/tasks/TSK-0001', payload: { status: 'in_progress' } });
+    expect(res.statusCode).toBe(400);
+  });
+
+  it('PATCH /tasks/:id → review', async () => {
+    await app.inject({ method: 'POST', url: '/tasks', payload: { title: 'A', role: 'implementer' } });
+    const res = await app.inject({ method: 'PATCH', url: '/tasks/TSK-0001', payload: { status: 'review' } });
+    expect(res.statusCode).toBe(200);
+    expect(JSON.parse(res.payload).status).toBe('review');
+  });
+
+  it('PATCH /tasks/:id → cancelled', async () => {
+    await app.inject({ method: 'POST', url: '/tasks', payload: { title: 'A', role: 'implementer' } });
+    const res = await app.inject({ method: 'PATCH', url: '/tasks/TSK-0001', payload: { status: 'cancelled' } });
+    expect(res.statusCode).toBe(200);
+    expect(JSON.parse(res.payload).status).toBe('cancelled');
+  });
+
+  it('PATCH /tasks/:id → open (reopen)', async () => {
+    await app.inject({ method: 'POST', url: '/tasks', payload: { title: 'A', role: 'implementer' } });
+    // First cancel it, then reopen
+    await app.inject({ method: 'PATCH', url: '/tasks/TSK-0001', payload: { status: 'cancelled' } });
+    const res = await app.inject({ method: 'PATCH', url: '/tasks/TSK-0001', payload: { status: 'open' } });
+    expect(res.statusCode).toBe(200);
+    expect(JSON.parse(res.payload).status).toBe('open');
+  });
+
+  it('review and cancelled tasks appear in GET /tasks list', async () => {
+    await app.inject({ method: 'POST', url: '/tasks', payload: { title: 'A', role: 'implementer' } });
+    await app.inject({ method: 'POST', url: '/tasks', payload: { title: 'B', role: 'implementer' } });
+    await app.inject({ method: 'PATCH', url: '/tasks/TSK-0001', payload: { status: 'review' } });
+    await app.inject({ method: 'PATCH', url: '/tasks/TSK-0002', payload: { status: 'cancelled' } });
+
+    const allRes = await app.inject({ method: 'GET', url: '/tasks' });
+    const all = JSON.parse(allRes.payload) as Array<{ status: string }>;
+    const statuses = all.map((t) => t.status);
+    expect(statuses).toContain('review');
+    expect(statuses).toContain('cancelled');
+  });
+
   it('updates status via POST /status/update', async () => {
     await app.inject({ method: 'POST', url: '/tasks', payload: { title: 'A', role: 'implementer' } });
     const res = await app.inject({ method: 'POST', url: '/status/update' });
@@ -78,4 +120,37 @@ describe('server routes', () => {
     expect(html).toContain("getJSON('/tasks')");
     expect(html).toContain('setInterval(refresh');
   });
+
+  it('board HTML contains the who-arrow rendering logic', async () => {
+    const res = await app.inject({ method: 'GET', url: '/board' });
+    const html = res.payload;
+    // The handoffRoute helper and the &rarr; arrow must be present
+    expect(html).toContain('handoffRoute');
+    expect(html).toContain('&rarr;');
+    // The who-cell class must be used in renderHandoffs
+    expect(html).toContain('who-cell');
+  });
+
+  it('GET /handoffs returns fromRole and toRole fields', async () => {
+    await app.inject({
+      method: 'POST',
+      url: '/handoffs',
+      payload: {
+        fromRole: 'architect',
+        toRole: 'implementer',
+        fromAgent: 'claude',
+        toAgent: 'codex',
+        summary: 'Design done',
+        context: 'See decisions',
+      },
+    });
+    const res = await app.inject({ method: 'GET', url: '/handoffs' });
+    expect(res.statusCode).toBe(200);
+    const items = JSON.parse(res.payload) as Array<Record<string, unknown>>;
+    expect(items).toHaveLength(1);
+    expect(items[0].fromRole).toBe('architect');
+    expect(items[0].toRole).toBe('implementer');
+    expect(items[0].fromAgent).toBe('claude');
+    expect(items[0].toAgent).toBe('codex');
+  });
 });

tests/taskService.test.ts

@@ -2,7 +2,10 @@ import { describe, it, expect, beforeEach, afterEach } from 'vitest';
 import { mkdtempSync, rmSync } from 'fs';
 import { tmpdir } from 'os';
 import { join } from 'path';
-import { createTask, listTasks, getTask, claimTask, doneTask } from '../src/core/services/taskService.js';
+import {
+  createTask, listTasks, getTask,
+  claimTask, doneTask, reviewTask, cancelTask, reopenTask,
+} from '../src/core/services/taskService.js';
 
 describe('taskService', () => {
   let cwd: string;
@@ -35,4 +38,38 @@ describe('taskService', () => {
     const done = doneTask(cwd, task.id);
     expect(done.status).toBe('done');
   });
+
+  it('transitions a task to review', () => {
+    const task = createTask(cwd, { title: 'C', role: 'implementer' });
+    const inReview = reviewTask(cwd, task.id);
+    expect(inReview.status).toBe('review');
+    // Verify index is updated
+    const listed = listTasks(cwd, { status: 'review' });
+    expect(listed).toHaveLength(1);
+    expect(listed[0].id).toBe(task.id);
+  });
+
+  it('cancels a task', () => {
+    const task = createTask(cwd, { title: 'D', role: 'implementer' });
+    const cancelled = cancelTask(cwd, task.id);
+    expect(cancelled.status).toBe('cancelled');
+    const listed = listTasks(cwd, { status: 'cancelled' });
+    expect(listed).toHaveLength(1);
+  });
+
+  it('reopens a task (any status → open)', () => {
+    const task = createTask(cwd, { title: 'E', role: 'implementer' });
+    cancelTask(cwd, task.id);
+    const reopened = reopenTask(cwd, task.id);
+    expect(reopened.status).toBe('open');
+    const listed = listTasks(cwd, { status: 'open' });
+    expect(listed).toHaveLength(1);
+  });
+
+  it('getTask reads back the correct task', () => {
+    const task = createTask(cwd, { title: 'F', role: 'architect' });
+    const { task: read } = getTask(cwd, task.id);
+    expect(read.title).toBe('F');
+    expect(read.role).toBe('architect');
+  });
 });