feat(mosaic): gateway token recovery via BetterAuth cookie (CU-03-03..07)

Add mosaic gateway login subcommand with meta.json URL default, config
rotate-token and recover-token subcommands for admin token minting via
BetterAuth session cookie, fix the bootstrapFirstUser dead-end when admin
exists but no token is on file, and add Vitest tests for all new flows.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docs/plans/gateway-token-recovery.md

@@ -0,0 +1,193 @@
+# Gateway Admin Token Recovery — Implementation Plan
+
+**Mission:** `cli-unification-20260404`
+**Task:** `CU-03-01` (planning only — no runtime code changes)
+**Status:** Design locked (Session 1) — BetterAuth cookie-based recovery
+
+---
+
+## 1. Problem Statement
+
+The gateway installer strands operators when the admin user exists but the admin
+API token is missing. Concrete trigger:
+
+- `~/.config/mosaic/gateway/meta.json` was deleted / regenerated.
+- The installer was re-run after a previous successful bootstrap.
+
+Flow today (`packages/mosaic/src/commands/gateway/install.ts:375-400`):
+
+1. `bootstrapFirstUser` hits `GET /api/bootstrap/status`.
+2. Server returns `needsSetup: false` because `users` count > 0.
+3. Installer logs `Admin user already exists — skipping setup. (No admin token on file — sign in via the web UI to manage tokens.)` and returns.
+4. The operator now has:
+   - No token in `meta.json`.
+   - No CLI path to mint a new one (`mosaic gateway <anything>` that needs the token fails).
+   - `POST /api/bootstrap/setup` locked out — it only runs when `users` count is zero (`apps/gateway/src/admin/bootstrap.controller.ts:34-37`).
+   - `POST /api/admin/tokens` gated by `AdminGuard` — requires either a bearer token (which they don't have) or a BetterAuth session (which they don't have in the CLI).
+
+Dead end. The web UI is the only escape hatch today, and for headless installs even that may be inaccessible.
+
+## 2. Design Summary
+
+The BetterAuth session cookie is the authority. The operator runs
+`mosaic gateway login` to sign in with email/password, which persists a session
+cookie via `saveSession` (reusing `packages/mosaic/src/auth.ts`). With a valid
+session, `mosaic gateway config recover-token` (stranded-operator entry point)
+and `mosaic gateway config rotate-token` call the existing authenticated admin
+endpoint `POST /api/admin/tokens` using the cookie, then persist the returned
+plaintext to `meta.json` via `writeMeta`. **No new server endpoints are
+required** — `AdminGuard` already accepts BetterAuth session cookies via its
+`validateSession` path (`apps/gateway/src/admin/admin.guard.ts:90-120`).
+
+## 3. Surface Contract
+
+### 3.1 Server — no changes required
+
+| Endpoint                       | Status          | Notes                                                                                                                    |
+| ------------------------------ | --------------- | ------------------------------------------------------------------------------------------------------------------------ |
+| `POST /api/admin/tokens`       | **Reuse as-is** | `admin-tokens.controller.ts:46-72`. Returns `{ id, label, scope, expiresAt, lastUsedAt, createdAt, plaintext }`.         |
+| `GET  /api/admin/tokens`       | **Reuse**       | Useful for `mosaic gateway config tokens list` follow-on (out of scope for CU-03-01, but trivial once auth path exists). |
+| `DELETE /api/admin/tokens/:id` | **Reuse**       | Used by rotate flow for optional old-token revocation.                                                                   |
+| `POST /api/bootstrap/setup`    | **Unchanged**   | Remains first-user-only; not part of recovery.                                                                           |
+
+`AdminGuard.validateSession` takes BetterAuth cookies from `request.raw.headers`
+via `fromNodeHeaders` and calls `auth.api.getSession({ headers })`. It also
+enforces `role === 'admin'`. This is exactly the path the CLI will hit with
+`Cookie: better-auth.session_token=...`.
+
+**Confirmed feasible** during CU-03-01 investigation.
+
+### 3.2 `mosaic gateway login`
+
+Thin wrapper over the existing top-level `mosaic login`
+(`packages/mosaic/src/cli.ts:42-76`) with gateway-specific defaults pulled from
+`readMeta()`.
+
+| Aspect              | Behavior                                                                                                                        |
+| ------------------- | ------------------------------------------------------------------------------------------------------------------------------- |
+| Default gateway URL | `http://${meta.host}:${meta.port}` from `readMeta()`, fallback `http://localhost:14242`.                                        |
+| Flow                | Prompt email + password -> `signIn()` -> `saveSession()`.                                                                       |
+| Persistence         | `~/.mosaic/session.json` via existing `saveSession` (7-day expiry).                                                             |
+| Decision            | **Thin wrapper**, not alias. Rationale: defaults differ (reads `meta.json`), and discoverability under `mosaic gateway --help`. |
+| Implementation      | Share the sign-in logic by extracting a small `runLogin(gatewayUrl, email?, password?)` helper; both commands call it.          |
+
+### 3.3 `mosaic gateway config rotate-token`
+
+| Aspect       | Behavior                                                                                                                                                                                                                             |
+| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| Precondition | Valid session (via `loadSession` + `validateSession`). On failure, print: "Not signed in — run `mosaic gateway login`" and exit non-zero.                                                                                            |
+| Request      | `POST ${gatewayUrl}/api/admin/tokens` with header `Cookie: <session>`, body `{ label: "CLI token (rotated YYYY-MM-DD)" }`.                                                                                                           |
+| On success   | Read meta via `readMeta()`, set `meta.adminToken = plaintext`, `writeMeta(meta)`. Print the token banner (reuse `printAdminTokenBanner` shape).                                                                                      |
+| Old token    | **Optional `--revoke-old`** flag. When set and a previous `meta.adminToken` existed, call `DELETE /api/admin/tokens/:id` after rotation. Requires listing first to find the id; punt to CU-03-02 decision. Document as nice-to-have. |
+| Exit codes   | `0` success; `1` network error; `2` auth error; `3` server rejection.                                                                                                                                                                |
+
+### 3.4 `mosaic gateway config recover-token`
+
+Superset of `rotate-token` with an inline login nudge — the "stranded operator"
+entry point.
+
+| Step | Action                                                                                                                           |
+| ---- | -------------------------------------------------------------------------------------------------------------------------------- |
+| 1    | `readMeta()` — derive gateway URL. If meta is missing entirely, fall back to `--gateway` flag or default.                        |
+| 2    | `loadSession(gatewayUrl)` then `validateSession`. If either fails, prompt inline: email + password -> `signIn` -> `saveSession`. |
+| 3    | `POST /api/admin/tokens` with cookie, label `"Recovered via CLI YYYY-MM-DDTHH:mm"`.                                              |
+| 4    | Persist plaintext to `meta.json` via `writeMeta`.                                                                                |
+| 5    | Print the token banner and next-steps hints (e.g. `mosaic gateway status`).                                                      |
+| 6    | Exit `0`.                                                                                                                        |
+
+Key property: this command is **runnable with nothing but email+password in hand**.
+It assumes the gateway is up but assumes no prior CLI session state.
+
+### 3.5 File touch list (for CU-03-02..05 execution)
+
+| File                                                  | Change                                                                                     |
+| ----------------------------------------------------- | ------------------------------------------------------------------------------------------ |
+| `packages/mosaic/src/commands/gateway.ts`             | Register `login`, `config recover-token`, `config rotate-token` subcommands under `gw`.    |
+| `packages/mosaic/src/commands/gateway/config.ts`      | Add `runRecoverToken`, `runRotateToken` handlers; export from module.                      |
+| `packages/mosaic/src/commands/gateway/login.ts` (new) | Thin wrapper calling shared `runLogin` helper with meta-derived default URL.               |
+| `packages/mosaic/src/auth.ts`                         | No change expected. Possibly export a `requireSession(gatewayUrl)` helper (reuse pattern). |
+| `packages/mosaic/src/commands/gateway/install.ts`     | `bootstrapFirstUser` branch: "user exists, no token" -> offer recovery (see Section 4).    |
+
+## 4. Installer Fix (CU-03-06 preview)
+
+Current stranding point is `install.ts:388-395`. The fix:
+
+```
+if (!status.needsSetup) {
+  if (meta.adminToken) {
+    // unchanged — happy path
+  } else {
+    // NEW: prompt "Admin exists but no token on file. Recover now? [Y/n]"
+    // If yes -> call runRecoverToken(gatewayUrl) inline (interactive):
+    //   - prompt email + password
+    //   - signIn -> saveSession
+    //   - POST /api/admin/tokens
+    //   - writeMeta(meta) with returned plaintext
+    //   - print banner
+    // If no -> print the current stranded message but include:
+    //   "Run `mosaic gateway config recover-token` when ready."
+  }
+}
+```
+
+Shape notes (actual code lands in CU-03-06):
+
+- Extract the recovery body so it can be called **both** from the standalone
+  command and from `bootstrapFirstUser` without duplicating prompts.
+- Reuse the same `rl` readline interface already open in `bootstrapFirstUser`
+  for the inline prompts.
+- Preserve non-interactive behavior: if `process.stdin.isTTY` is false, skip the
+  prompt and emit the "run recover-token" hint only.
+
+## 5. Test Strategy (CU-03-07 scope)
+
+### 5.1 Happy paths
+
+| Command                               | Scenario                                         | Expected                                                 |
+| ------------------------------------- | ------------------------------------------------ | -------------------------------------------------------- |
+| `mosaic gateway login`                | Valid creds                                      | `session.json` written, 7-day expiry, exit 0             |
+| `mosaic gateway config rotate-token`  | Valid session, server reachable                  | `meta.json` updated, banner printed, new token usable    |
+| `mosaic gateway config recover-token` | No session, valid creds, server reachable        | Prompts for creds, writes session + meta, exit 0         |
+| Installer inline recovery             | Re-run after `meta.json` wipe, operator says yes | Meta restored, banner printed, no manual CLI step needed |
+
+### 5.2 Error paths (must all produce actionable messages and non-zero exit)
+
+| Failure                           | Expected handling                                                                 |
+| --------------------------------- | --------------------------------------------------------------------------------- |
+| Invalid email/password            | BetterAuth 401 surfaced as "Sign-in failed: <server message>", exit 2             |
+| Expired stored session            | Recover command silently re-prompts; rotate command exits 2 with "run login" hint |
+| Gateway down / connection refused | "Could not reach gateway at <url>" exit 1                                         |
+| Server rejects token creation     | Print status + body excerpt, exit 3                                               |
+| Meta file missing (recover)       | Fall back to `--gateway` flag or default; warn that meta will be created          |
+| Non-admin user                    | `AdminGuard` 403 surfaced as "User is not an admin", exit 2                       |
+
+### 5.3 Integration test (recommended)
+
+Spin up gateway in test harness, create admin user via `/api/bootstrap/setup`,
+wipe `meta.json`, invoke `mosaic gateway config recover-token` programmatically,
+assert new `meta.adminToken` works against `GET /api/admin/tokens`.
+
+## 6. Risks & Open Questions
+
+| #   | Item                                                                                                                                                                                    | Severity | Mitigation                                                                                                     |
+| --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------- | -------------------------------------------------------------------------------------------------------------- |
+| 1   | `AdminGuard.validateSession` calls `getSession` with `fromNodeHeaders(request.raw.headers)`. CLI sends `Cookie:` header only. Confirm BetterAuth reads from `Cookie`, not `Set-Cookie`. | Low      | Confirmed — `mosaic login` + `mosaic tui` already use this flow successfully (`cli.ts:137-181`).               |
+| 2   | Session cookie local expiry (7d) vs BetterAuth server-side expiry may drift.                                                                                                            | Low      | `validateSession` hits `get-session`; handle 401 by re-prompting.                                              |
+| 3   | Label collision / unbounded token growth if operators run `recover-token` repeatedly.                                                                                                   | Low      | Include ISO timestamp in label. Optional `--revoke-old` in CU-03-02. Add `tokens list/prune` later.            |
+| 4   | `mosaic login` exists at top level and `mosaic gateway login` is a wrapper — risk of confusion.                                                                                         | Low      | Document that `gateway login` is the preferred entry for gateway operators; top-level stays for compatibility. |
+| 5   | `meta.json` write is not atomic. Crash between token creation and `writeMeta` leaves an orphan token server-side with no plaintext on disk.                                             | Medium   | Accept for now — re-running `recover-token` mints a fresh token. Document as known limitation.                 |
+| 6   | Non-TTY installer runs (CI, headless provisioners) cannot prompt for creds interactively.                                                                                               | Medium   | Installer inline recovery must skip prompt when `!process.stdin.isTTY`; emit the recover-token hint.           |
+| 7   | If `BETTER_AUTH_SECRET` rotates between login and recover, the session cookie is invalid — user must re-login. Acceptable but surface a clear error.                                    | Low      | Error handler maps 401 on recover -> "Session invalid; re-run `mosaic gateway login`".                         |
+| 8   | No MFA today. When MFA lands, BetterAuth sign-in will return a challenge, not a cookie — recovery UX will need a second prompt step.                                                    | Future   | Out of scope for this mission. Flag for future CLI work.                                                       |
+
+## 7. Downstream Task Hooks
+
+| Task     | Scope                                                                      |
+| -------- | -------------------------------------------------------------------------- |
+| CU-03-02 | Implement `mosaic gateway login` wrapper + shared `runLogin` extraction.   |
+| CU-03-03 | Implement `mosaic gateway config rotate-token`.                            |
+| CU-03-04 | Implement `mosaic gateway config recover-token`.                           |
+| CU-03-05 | Wire commands into `gateway.ts` registration, update `--help` copy.        |
+| CU-03-06 | Installer inline recovery hook in `bootstrapFirstUser`.                    |
+| CU-03-07 | Tests per Section 5.                                                       |
+| CU-03-08 | Docs: update gateway install README + operator runbook with recovery flow. |

packages/brain/package.json

@@ -22,7 +22,8 @@
   },
   "dependencies": {
     "@mosaicstack/db": "workspace:^",
-    "@mosaicstack/types": "workspace:*"
+    "@mosaicstack/types": "workspace:*",
+    "commander": "^13.0.0"
   },
   "devDependencies": {
     "typescript": "^5.8.0",

packages/brain/src/cli.spec.ts

@@ -0,0 +1,95 @@
+import { describe, it, expect } from 'vitest';
+import { Command } from 'commander';
+import { registerBrainCommand } from './cli.js';
+
+/**
+ * Smoke test: verifies the command tree is correctly registered.
+ * No database connection is opened — we only inspect Commander metadata.
+ */
+describe('registerBrainCommand', () => {
+  function buildProgram(): Command {
+    const program = new Command('mosaic');
+    // Prevent Commander from calling process.exit on parse errors during tests.
+    program.exitOverride();
+    registerBrainCommand(program);
+    return program;
+  }
+
+  it('registers a top-level "brain" command', () => {
+    const program = buildProgram();
+    const brainCmd = program.commands.find((c) => c.name() === 'brain');
+    expect(brainCmd).toBeDefined();
+  });
+
+  it('registers "brain projects" with "list" and "create" subcommands', () => {
+    const program = buildProgram();
+    const brainCmd = program.commands.find((c) => c.name() === 'brain')!;
+    const projectsCmd = brainCmd.commands.find((c) => c.name() === 'projects');
+    expect(projectsCmd).toBeDefined();
+
+    const subNames = projectsCmd!.commands.map((c) => c.name());
+    expect(subNames).toContain('list');
+    expect(subNames).toContain('create');
+  });
+
+  it('registers "brain missions" with "list" subcommand', () => {
+    const program = buildProgram();
+    const brainCmd = program.commands.find((c) => c.name() === 'brain')!;
+    const missionsCmd = brainCmd.commands.find((c) => c.name() === 'missions');
+    expect(missionsCmd).toBeDefined();
+
+    const subNames = missionsCmd!.commands.map((c) => c.name());
+    expect(subNames).toContain('list');
+  });
+
+  it('registers "brain tasks" with "list" subcommand', () => {
+    const program = buildProgram();
+    const brainCmd = program.commands.find((c) => c.name() === 'brain')!;
+    const tasksCmd = brainCmd.commands.find((c) => c.name() === 'tasks');
+    expect(tasksCmd).toBeDefined();
+
+    const subNames = tasksCmd!.commands.map((c) => c.name());
+    expect(subNames).toContain('list');
+  });
+
+  it('registers "brain conversations" with "list" subcommand', () => {
+    const program = buildProgram();
+    const brainCmd = program.commands.find((c) => c.name() === 'brain')!;
+    const conversationsCmd = brainCmd.commands.find((c) => c.name() === 'conversations');
+    expect(conversationsCmd).toBeDefined();
+
+    const subNames = conversationsCmd!.commands.map((c) => c.name());
+    expect(subNames).toContain('list');
+  });
+
+  it('"brain projects list" accepts --db and --limit options', () => {
+    const program = buildProgram();
+    const brainCmd = program.commands.find((c) => c.name() === 'brain')!;
+    const projectsCmd = brainCmd.commands.find((c) => c.name() === 'projects')!;
+    const listCmd = projectsCmd.commands.find((c) => c.name() === 'list')!;
+
+    const optionNames = listCmd.options.map((o) => o.long);
+    expect(optionNames).toContain('--db');
+    expect(optionNames).toContain('--limit');
+  });
+
+  it('"brain missions list" accepts --project option', () => {
+    const program = buildProgram();
+    const brainCmd = program.commands.find((c) => c.name() === 'brain')!;
+    const missionsCmd = brainCmd.commands.find((c) => c.name() === 'missions')!;
+    const listCmd = missionsCmd.commands.find((c) => c.name() === 'list')!;
+
+    const optionNames = listCmd.options.map((o) => o.long);
+    expect(optionNames).toContain('--project');
+  });
+
+  it('"brain tasks list" accepts --project option', () => {
+    const program = buildProgram();
+    const brainCmd = program.commands.find((c) => c.name() === 'brain')!;
+    const tasksCmd = brainCmd.commands.find((c) => c.name() === 'tasks')!;
+    const listCmd = tasksCmd.commands.find((c) => c.name() === 'list')!;
+
+    const optionNames = listCmd.options.map((o) => o.long);
+    expect(optionNames).toContain('--project');
+  });
+});

packages/brain/src/cli.ts

@@ -0,0 +1,142 @@
+import type { Command } from 'commander';
+import { createDb, type DbHandle } from '@mosaicstack/db';
+import { createBrain } from './brain.js';
+
+/**
+ * Build and attach the `brain` subcommand tree onto an existing Commander program.
+ * Uses the caller's Command instance to avoid cross-package Commander version mismatches.
+ */
+export function registerBrainCommand(parent: Command): void {
+  const brain = parent.command('brain').description('Inspect and manage brain data stores');
+
+  // ─── shared DB option helper ─────────────────────────────────────────────
+
+  function addDbOption(cmd: Command): Command {
+    return cmd.option(
+      '--db <connection-string>',
+      'PostgreSQL connection string (overrides MOSAIC_DB_URL)',
+    );
+  }
+
+  function resolveDb(opts: { db?: string }): ReturnType<typeof createBrain> {
+    const connectionString = opts.db ?? process.env['MOSAIC_DB_URL'];
+    if (!connectionString) {
+      console.error('No DB connection string provided. Pass --db <url> or set MOSAIC_DB_URL.');
+      process.exit(1);
+    }
+    const handle: DbHandle = createDb(connectionString);
+    return createBrain(handle.db);
+  }
+
+  // ─── projects ────────────────────────────────────────────────────────────
+
+  const projects = brain.command('projects').description('Manage projects');
+
+  addDbOption(
+    projects
+      .command('list')
+      .description('List all projects')
+      .option('--limit <n>', 'Maximum number of results', '50'),
+  ).action(async (opts: { db?: string; limit: string }) => {
+    const b = resolveDb(opts);
+    const limit = parseInt(opts.limit, 10);
+    const rows = await b.projects.findAll();
+    const sliced = rows.slice(0, limit);
+    if (sliced.length === 0) {
+      console.log('No projects found.');
+      return;
+    }
+    for (const p of sliced) {
+      console.log(`${p.id}  ${p.name}`);
+    }
+  });
+
+  addDbOption(
+    projects
+      .command('create <name>')
+      .description('Create a new project')
+      .requiredOption('--owner-id <id>', 'Owner user ID'),
+  ).action(async (name: string, opts: { db?: string; ownerId: string }) => {
+    const b = resolveDb(opts);
+    const created = await b.projects.create({
+      name,
+      ownerId: opts.ownerId,
+      ownerType: 'user',
+    });
+    console.log(`Created project: ${created.id}  ${created.name}`);
+  });
+
+  // ─── missions ────────────────────────────────────────────────────────────
+
+  const missions = brain.command('missions').description('Manage missions');
+
+  addDbOption(
+    missions
+      .command('list')
+      .description('List all missions')
+      .option('--limit <n>', 'Maximum number of results', '50')
+      .option('--project <id>', 'Filter by project ID'),
+  ).action(async (opts: { db?: string; limit: string; project?: string }) => {
+    const b = resolveDb(opts);
+    const limit = parseInt(opts.limit, 10);
+    const rows = opts.project
+      ? await b.missions.findByProject(opts.project)
+      : await b.missions.findAll();
+    const sliced = rows.slice(0, limit);
+    if (sliced.length === 0) {
+      console.log('No missions found.');
+      return;
+    }
+    for (const m of sliced) {
+      console.log(`${m.id}  ${m.name}`);
+    }
+  });
+
+  // ─── tasks ────────────────────────────────────────────────────────────────
+
+  const tasks = brain.command('tasks').description('Manage generic tasks');
+
+  addDbOption(
+    tasks
+      .command('list')
+      .description('List all tasks')
+      .option('--limit <n>', 'Maximum number of results', '50')
+      .option('--project <id>', 'Filter by project ID'),
+  ).action(async (opts: { db?: string; limit: string; project?: string }) => {
+    const b = resolveDb(opts);
+    const limit = parseInt(opts.limit, 10);
+    const rows = opts.project ? await b.tasks.findByProject(opts.project) : await b.tasks.findAll();
+    const sliced = rows.slice(0, limit);
+    if (sliced.length === 0) {
+      console.log('No tasks found.');
+      return;
+    }
+    for (const t of sliced) {
+      console.log(`${t.id}  ${t.title}  [${t.status}]`);
+    }
+  });
+
+  // ─── conversations ────────────────────────────────────────────────────────
+
+  const conversations = brain.command('conversations').description('Manage conversations');
+
+  addDbOption(
+    conversations
+      .command('list')
+      .description('List conversations for a user')
+      .option('--limit <n>', 'Maximum number of results', '50')
+      .requiredOption('--user-id <id>', 'User ID to scope the query'),
+  ).action(async (opts: { db?: string; limit: string; userId: string }) => {
+    const b = resolveDb(opts);
+    const limit = parseInt(opts.limit, 10);
+    const rows = await b.conversations.findAll(opts.userId);
+    const sliced = rows.slice(0, limit);
+    if (sliced.length === 0) {
+      console.log('No conversations found.');
+      return;
+    }
+    for (const c of sliced) {
+      console.log(`${c.id}  ${c.title ?? '(untitled)'}`);
+    }
+  });
+}

packages/brain/src/index.ts

@@ -1,4 +1,5 @@
 export { createBrain, type Brain } from './brain.js';
+export { registerBrainCommand } from './cli.js';
 export {
   createProjectsRepo,
   type ProjectsRepo,

packages/mosaic/package.json

@@ -27,6 +27,7 @@
     "test": "vitest run --passWithNoTests"
   },
   "dependencies": {
+    "@mosaicstack/brain": "workspace:*",
     "@mosaicstack/config": "workspace:*",
     "@mosaicstack/forge": "workspace:*",
     "@mosaicstack/macp": "workspace:*",

packages/mosaic/src/cli.ts

@@ -2,6 +2,7 @@
 
 import { createRequire } from 'module';
 import { Command } from 'commander';
+import { registerBrainCommand } from '@mosaicstack/brain';
 import { registerQualityRails } from '@mosaicstack/quality-rails';
 import { registerAgentCommand } from './commands/agent.js';
 import { registerMissionCommand } from './commands/mission.js';
@@ -33,7 +34,23 @@ try {
 
 const program = new Command();
 
-program.name('mosaic').description('Mosaic Stack CLI').version(CLI_VERSION);
+program
+  .name('mosaic')
+  .description('Mosaic Stack CLI')
+  .version(CLI_VERSION)
+  .configureHelp({ sortSubcommands: true })
+  .addHelpText(
+    'after',
+    `
+Command Groups:
+
+  Runtime:    tui, login, sessions
+  Gateway:    gateway
+  Framework:  agent, bootstrap, coord, doctor, init, launch, mission, prdy, seq, sync, upgrade, wizard, yolo
+  Platform:   update
+  Runtimes:   claude, codex, opencode, pi
+`,
+  );
 
 // ─── runtime launchers + framework commands ────────────────────────────
 
@@ -214,7 +231,10 @@ program
 
 // ─── sessions ───────────────────────────────────────────────────────────
 
-const sessionsCmd = program.command('sessions').description('Manage active agent sessions');
+const sessionsCmd = program
+  .command('sessions')
+  .description('Manage active agent sessions')
+  .configureHelp({ sortSubcommands: true });
 
 sessionsCmd
   .command('list')
@@ -314,6 +334,10 @@ registerAgentCommand(program);
 
 registerMissionCommand(program);
 
+// ─── brain ──────────────────────────────────────────────────────────────
+
+registerBrainCommand(program);
+
 // ─── quality-rails ──────────────────────────────────────────────────────
 
 registerQualityRails(program);

packages/mosaic/src/commands/gateway.ts

@@ -6,6 +6,7 @@ import {
   stopDaemon,
   waitForHealth,
 } from './gateway/daemon.js';
+import { getGatewayUrl } from './gateway/login.js';
 
 interface GatewayParentOpts {
   host: string;
@@ -30,6 +31,7 @@ export function registerGatewayCommand(program: Command): void {
     .option('-h, --host <host>', 'Gateway host', 'localhost')
     .option('-p, --port <port>', 'Gateway port', '14242')
     .option('-t, --token <token>', 'Admin API token')
+    .configureHelp({ sortSubcommands: true })
     .action(() => {
       gw.outputHelp();
     });
@@ -118,9 +120,28 @@ export function registerGatewayCommand(program: Command): void {
       await runStatus(opts);
     });
 
+  // ─── login ──────────────────────────────────────────────────────────────
+
+  gw.command('login')
+    .description('Sign in to the gateway (defaults to URL from meta.json)')
+    .option('-g, --gateway <url>', 'Gateway URL (overrides meta.json)')
+    .option('-e, --email <email>', 'Email address')
+    .option('-p, --password <password>', 'Password')
+    .action(async (cmdOpts: { gateway?: string; email?: string; password?: string }) => {
+      const { runLogin } = await import('./gateway/login.js');
+      const url = getGatewayUrl(cmdOpts.gateway);
+      try {
+        await runLogin({ gatewayUrl: url, email: cmdOpts.email, password: cmdOpts.password });
+      } catch (err) {
+        console.error(err instanceof Error ? err.message : String(err));
+        process.exit(1);
+      }
+    });
+
   // ─── config ─────────────────────────────────────────────────────────────
 
-  gw.command('config')
+  const configCmd = gw
+    .command('config')
     .description('View or modify gateway configuration')
     .option('--set <KEY=VALUE>', 'Set a configuration value')
     .option('--unset <KEY>', 'Remove a configuration key')
@@ -130,6 +151,24 @@ export function registerGatewayCommand(program: Command): void {
       await runConfig(cmdOpts);
     });
 
+  configCmd
+    .command('rotate-token')
+    .description('Mint a new admin token using the stored BetterAuth session')
+    .option('-g, --gateway <url>', 'Gateway URL (overrides meta.json)')
+    .action(async (cmdOpts: { gateway?: string }) => {
+      const { runRotateToken } = await import('./gateway/token-ops.js');
+      await runRotateToken(cmdOpts.gateway);
+    });
+
+  configCmd
+    .command('recover-token')
+    .description('Recover an admin token — prompts for login if no valid session exists')
+    .option('-g, --gateway <url>', 'Gateway URL (overrides meta.json)')
+    .action(async (cmdOpts: { gateway?: string }) => {
+      const { runRecoverToken } = await import('./gateway/token-ops.js');
+      await runRecoverToken(cmdOpts.gateway);
+    });
+
   // ─── logs ───────────────────────────────────────────────────────────────
 
   gw.command('logs')

packages/mosaic/src/commands/gateway/install.ts

@@ -388,10 +388,32 @@ async function bootstrapFirstUser(
     if (!status.needsSetup) {
       if (meta.adminToken) {
         console.log('Admin user already exists (token on file).');
-      } else {
+        return;
-        console.log('Admin user already exists — skipping setup.');
-        console.log('(No admin token on file — sign in via the web UI to manage tokens.)');
       }
+
+      // Admin user exists but no token — offer inline recovery when interactive.
+      console.log('Admin user already exists but no admin token is on file.');
+
+      if (process.stdin.isTTY) {
+        const answer = (await prompt(rl, 'Run token recovery now? [Y/n] ')).trim().toLowerCase();
+        if (answer === '' || answer === 'y' || answer === 'yes') {
+          console.log();
+          try {
+            const { ensureSession, mintAdminToken, persistToken } = await import('./token-ops.js');
+            const cookie = await ensureSession(baseUrl);
+            const label = `CLI recovery token (${new Date().toISOString().slice(0, 16).replace('T', ' ')})`;
+            const minted = await mintAdminToken(baseUrl, cookie, label);
+            persistToken(baseUrl, minted);
+          } catch (err) {
+            console.error(
+              `Token recovery failed: ${err instanceof Error ? err.message : String(err)}`,
+            );
+          }
+          return;
+        }
+      }
+
+      console.log('No admin token on file. Run: mosaic gateway config recover-token');
       return;
     }
   } catch {

packages/mosaic/src/commands/gateway/login.spec.ts

@@ -0,0 +1,87 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+
+// Mock auth module
+vi.mock('../../auth.js', () => ({
+  signIn: vi.fn(),
+  saveSession: vi.fn(),
+}));
+
+// Mock daemon to avoid file-system reads
+vi.mock('./daemon.js', () => ({
+  readMeta: vi.fn().mockReturnValue({
+    host: 'localhost',
+    port: 14242,
+    version: '1.0.0',
+    installedAt: '',
+    entryPoint: '',
+  }),
+}));
+
+import { runLogin, getGatewayUrl } from './login.js';
+import { signIn, saveSession } from '../../auth.js';
+import { readMeta } from './daemon.js';
+
+const mockSignIn = vi.mocked(signIn);
+const mockSaveSession = vi.mocked(saveSession);
+const mockReadMeta = vi.mocked(readMeta);
+
+describe('getGatewayUrl', () => {
+  it('returns override URL when provided', () => {
+    expect(getGatewayUrl('http://my-gateway:9999')).toBe('http://my-gateway:9999');
+  });
+
+  it('builds URL from meta.json when no override given', () => {
+    mockReadMeta.mockReturnValueOnce({
+      host: 'myhost',
+      port: 8080,
+      version: '1.0.0',
+      installedAt: '',
+      entryPoint: '',
+    });
+    expect(getGatewayUrl()).toBe('http://myhost:8080');
+  });
+
+  it('falls back to default when meta is null', () => {
+    mockReadMeta.mockReturnValueOnce(null);
+    expect(getGatewayUrl()).toBe('http://localhost:14242');
+  });
+});
+
+describe('runLogin', () => {
+  const consoleLogSpy = vi.spyOn(console, 'log').mockImplementation(() => {});
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('calls signIn and saveSession on success', async () => {
+    const fakeAuth = {
+      cookie: 'better-auth.session_token=abc',
+      userId: 'u1',
+      email: 'admin@test.com',
+    };
+    mockSignIn.mockResolvedValueOnce(fakeAuth);
+
+    await runLogin({
+      gatewayUrl: 'http://localhost:14242',
+      email: 'admin@test.com',
+      password: 'password123',
+    });
+
+    expect(mockSignIn).toHaveBeenCalledWith(
+      'http://localhost:14242',
+      'admin@test.com',
+      'password123',
+    );
+    expect(mockSaveSession).toHaveBeenCalledWith('http://localhost:14242', fakeAuth);
+    expect(consoleLogSpy).toHaveBeenCalledWith(expect.stringContaining('admin@test.com'));
+  });
+
+  it('propagates signIn errors', async () => {
+    mockSignIn.mockRejectedValueOnce(new Error('Sign-in failed (401): invalid credentials'));
+
+    await expect(
+      runLogin({ gatewayUrl: 'http://localhost:14242', email: 'bad@test.com', password: 'wrong' }),
+    ).rejects.toThrow('Sign-in failed (401)');
+  });
+});

packages/mosaic/src/commands/gateway/login.ts

@@ -0,0 +1,39 @@
+import { createInterface } from 'node:readline';
+import { signIn, saveSession } from '../../auth.js';
+import { readMeta } from './daemon.js';
+
+/**
+ * Shared login helper used by both `mosaic login` and `mosaic gateway login`.
+ * Prompts for email/password if not supplied, signs in, and persists the session.
+ */
+export async function runLogin(opts: {
+  gatewayUrl: string;
+  email?: string;
+  password?: string;
+}): Promise<void> {
+  let email = opts.email;
+  let password = opts.password;
+
+  if (!email || !password) {
+    const rl = createInterface({ input: process.stdin, output: process.stdout });
+    const ask = (q: string): Promise<string> => new Promise((resolve) => rl.question(q, resolve));
+
+    if (!email) email = await ask('Email: ');
+    if (!password) password = await ask('Password: ');
+    rl.close();
+  }
+
+  const auth = await signIn(opts.gatewayUrl, email, password);
+  saveSession(opts.gatewayUrl, auth);
+  console.log(`Signed in as ${auth.email} (${opts.gatewayUrl})`);
+}
+
+/**
+ * Derive the gateway base URL from meta.json with a fallback.
+ */
+export function getGatewayUrl(overrideUrl?: string): string {
+  if (overrideUrl) return overrideUrl;
+  const meta = readMeta();
+  if (meta) return `http://${meta.host}:${meta.port.toString()}`;
+  return 'http://localhost:14242';
+}

packages/mosaic/src/commands/gateway/recover-token.spec.ts

@@ -0,0 +1,176 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+
+// ─── Mocks ──────────────────────────────────────────────────────────────────
+
+vi.mock('../../auth.js', () => ({
+  loadSession: vi.fn(),
+  validateSession: vi.fn(),
+  signIn: vi.fn(),
+  saveSession: vi.fn(),
+}));
+
+vi.mock('./daemon.js', () => ({
+  readMeta: vi.fn(),
+  writeMeta: vi.fn(),
+}));
+
+vi.mock('./login.js', () => ({
+  getGatewayUrl: vi.fn().mockReturnValue('http://localhost:14242'),
+}));
+
+// Mock readline so tests don't block on stdin
+vi.mock('node:readline', () => ({
+  createInterface: vi.fn().mockReturnValue({
+    question: vi.fn((_q: string, cb: (a: string) => void) => cb('test-input')),
+    close: vi.fn(),
+  }),
+}));
+
+const mockFetch = vi.fn();
+vi.stubGlobal('fetch', mockFetch);
+
+import { runRecoverToken, ensureSession } from './token-ops.js';
+import { loadSession, validateSession, signIn, saveSession } from '../../auth.js';
+import { readMeta, writeMeta } from './daemon.js';
+
+const mockLoadSession = vi.mocked(loadSession);
+const mockValidateSession = vi.mocked(validateSession);
+const mockSignIn = vi.mocked(signIn);
+const mockSaveSession = vi.mocked(saveSession);
+const mockReadMeta = vi.mocked(readMeta);
+const mockWriteMeta = vi.mocked(writeMeta);
+
+const baseUrl = 'http://localhost:14242';
+const fakeCookie = 'better-auth.session_token=sess123';
+const fakeToken = {
+  id: 'tok-1',
+  label: 'CLI recovery token (2026-04-04 12:00)',
+  plaintext: 'abcdef1234567890',
+};
+const fakeMeta = {
+  version: '1.0.0',
+  installedAt: '',
+  entryPoint: '',
+  host: 'localhost',
+  port: 14242,
+};
+
+describe('ensureSession', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    vi.spyOn(console, 'log').mockImplementation(() => {});
+  });
+
+  it('returns cookie from stored session when valid', async () => {
+    mockLoadSession.mockReturnValueOnce({ cookie: fakeCookie, userId: 'u1', email: 'a@b.com' });
+    mockValidateSession.mockResolvedValueOnce(true);
+
+    const cookie = await ensureSession(baseUrl);
+    expect(cookie).toBe(fakeCookie);
+    expect(mockSignIn).not.toHaveBeenCalled();
+  });
+
+  it('prompts for credentials and signs in when stored session is invalid', async () => {
+    mockLoadSession.mockReturnValueOnce({ cookie: 'old-cookie', userId: 'u1', email: 'a@b.com' });
+    mockValidateSession.mockResolvedValueOnce(false);
+    const newAuth = { cookie: fakeCookie, userId: 'u2', email: 'a@b.com' };
+    mockSignIn.mockResolvedValueOnce(newAuth);
+
+    const cookie = await ensureSession(baseUrl);
+    expect(cookie).toBe(fakeCookie);
+    expect(mockSaveSession).toHaveBeenCalledWith(baseUrl, newAuth);
+  });
+
+  it('prompts for credentials when no session exists', async () => {
+    mockLoadSession.mockReturnValueOnce(null);
+    const newAuth = { cookie: fakeCookie, userId: 'u2', email: 'a@b.com' };
+    mockSignIn.mockResolvedValueOnce(newAuth);
+
+    const cookie = await ensureSession(baseUrl);
+    expect(cookie).toBe(fakeCookie);
+    expect(mockSignIn).toHaveBeenCalled();
+  });
+
+  it('exits non-zero when signIn fails', async () => {
+    mockLoadSession.mockReturnValueOnce(null);
+    mockSignIn.mockRejectedValueOnce(new Error('Sign-in failed (401): bad creds'));
+    const processExitSpy = vi
+      .spyOn(process, 'exit')
+      .mockImplementation((_code?: number | string | null | undefined) => {
+        throw new Error(`process.exit(${String(_code)})`);
+      });
+    const consoleErrorSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
+
+    await expect(ensureSession(baseUrl)).rejects.toThrow('process.exit(2)');
+    expect(processExitSpy).toHaveBeenCalledWith(2);
+
+    processExitSpy.mockRestore();
+    consoleErrorSpy.mockRestore();
+  });
+});
+
+describe('runRecoverToken', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    vi.spyOn(console, 'log').mockImplementation(() => {});
+    vi.spyOn(console, 'error').mockImplementation(() => {});
+  });
+
+  it('prompts for login, mints a token, and persists it when no session exists', async () => {
+    mockLoadSession.mockReturnValueOnce(null);
+    const newAuth = { cookie: fakeCookie, userId: 'u2', email: 'admin@test.com' };
+    mockSignIn.mockResolvedValueOnce(newAuth);
+    mockReadMeta.mockReturnValue(fakeMeta);
+    mockFetch.mockResolvedValueOnce({
+      ok: true,
+      status: 200,
+      json: async () => fakeToken,
+    });
+
+    await runRecoverToken();
+
+    expect(mockSignIn).toHaveBeenCalled();
+    expect(mockFetch).toHaveBeenCalledWith(
+      `${baseUrl}/api/admin/tokens`,
+      expect.objectContaining({ method: 'POST' }),
+    );
+    expect(mockWriteMeta).toHaveBeenCalledWith(
+      expect.objectContaining({ adminToken: fakeToken.plaintext }),
+    );
+  });
+
+  it('skips login when a valid session exists and mints a recovery token', async () => {
+    mockLoadSession.mockReturnValueOnce({ cookie: fakeCookie, userId: 'u1', email: 'a@b.com' });
+    mockValidateSession.mockResolvedValueOnce(true);
+    mockReadMeta.mockReturnValue(fakeMeta);
+    mockFetch.mockResolvedValueOnce({
+      ok: true,
+      status: 200,
+      json: async () => fakeToken,
+    });
+
+    await runRecoverToken();
+
+    expect(mockSignIn).not.toHaveBeenCalled();
+    expect(mockWriteMeta).toHaveBeenCalledWith(
+      expect.objectContaining({ adminToken: fakeToken.plaintext }),
+    );
+  });
+
+  it('uses label containing "recovery token"', async () => {
+    mockLoadSession.mockReturnValueOnce({ cookie: fakeCookie, userId: 'u1', email: 'a@b.com' });
+    mockValidateSession.mockResolvedValueOnce(true);
+    mockReadMeta.mockReturnValue(fakeMeta);
+    mockFetch.mockResolvedValueOnce({
+      ok: true,
+      status: 200,
+      json: async () => fakeToken,
+    });
+
+    await runRecoverToken();
+
+    const call = mockFetch.mock.calls[0] as [string, RequestInit];
+    const body = JSON.parse(call[1].body as string) as { label: string };
+    expect(body.label).toMatch(/CLI recovery token/);
+  });
+});

packages/mosaic/src/commands/gateway/rotate-token.spec.ts

@@ -0,0 +1,205 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+
+// ─── Mocks ──────────────────────────────────────────────────────────────────
+
+vi.mock('../../auth.js', () => ({
+  loadSession: vi.fn(),
+  validateSession: vi.fn(),
+  signIn: vi.fn(),
+  saveSession: vi.fn(),
+}));
+
+vi.mock('./daemon.js', () => ({
+  readMeta: vi.fn(),
+  writeMeta: vi.fn(),
+}));
+
+vi.mock('./login.js', () => ({
+  getGatewayUrl: vi.fn().mockReturnValue('http://localhost:14242'),
+}));
+
+// Mock global fetch
+const mockFetch = vi.fn();
+vi.stubGlobal('fetch', mockFetch);
+
+import { runRotateToken, mintAdminToken, persistToken } from './token-ops.js';
+import { loadSession, validateSession } from '../../auth.js';
+import { readMeta, writeMeta } from './daemon.js';
+
+const mockLoadSession = vi.mocked(loadSession);
+const mockValidateSession = vi.mocked(validateSession);
+const mockReadMeta = vi.mocked(readMeta);
+const mockWriteMeta = vi.mocked(writeMeta);
+
+const baseUrl = 'http://localhost:14242';
+const fakeCookie = 'better-auth.session_token=sess123';
+const fakeToken = {
+  id: 'tok-1',
+  label: 'CLI rotated token (2026-04-04)',
+  plaintext: 'abcdef1234567890',
+};
+const fakeMeta = {
+  version: '1.0.0',
+  installedAt: '',
+  entryPoint: '',
+  host: 'localhost',
+  port: 14242,
+};
+
+describe('mintAdminToken', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('calls the admin tokens endpoint with the session cookie and returns the token', async () => {
+    mockFetch.mockResolvedValueOnce({
+      ok: true,
+      status: 200,
+      json: async () => fakeToken,
+    });
+
+    const result = await mintAdminToken(baseUrl, fakeCookie, fakeToken.label);
+
+    expect(mockFetch).toHaveBeenCalledWith(
+      `${baseUrl}/api/admin/tokens`,
+      expect.objectContaining({
+        method: 'POST',
+        headers: expect.objectContaining({ Cookie: fakeCookie }),
+      }),
+    );
+    expect(result).toEqual(fakeToken);
+  });
+
+  it('exits 2 on 401 from the server', async () => {
+    mockFetch.mockResolvedValueOnce({ ok: false, status: 401, text: async () => 'Unauthorized' });
+    const processExitSpy = vi
+      .spyOn(process, 'exit')
+      .mockImplementation((_code?: number | string | null | undefined) => {
+        throw new Error(`process.exit(${String(_code)})`);
+      });
+
+    await expect(mintAdminToken(baseUrl, fakeCookie, 'label')).rejects.toThrow('process.exit(2)');
+    expect(processExitSpy).toHaveBeenCalledWith(2);
+    processExitSpy.mockRestore();
+  });
+
+  it('exits 2 on 403 from the server', async () => {
+    mockFetch.mockResolvedValueOnce({ ok: false, status: 403, text: async () => 'Forbidden' });
+    const processExitSpy = vi
+      .spyOn(process, 'exit')
+      .mockImplementation((_code?: number | string | null | undefined) => {
+        throw new Error(`process.exit(${String(_code)})`);
+      });
+
+    await expect(mintAdminToken(baseUrl, fakeCookie, 'label')).rejects.toThrow('process.exit(2)');
+    expect(processExitSpy).toHaveBeenCalledWith(2);
+    processExitSpy.mockRestore();
+  });
+
+  it('exits 3 on other non-ok status', async () => {
+    mockFetch.mockResolvedValueOnce({ ok: false, status: 500, text: async () => 'Internal Error' });
+    const processExitSpy = vi
+      .spyOn(process, 'exit')
+      .mockImplementation((_code?: number | string | null | undefined) => {
+        throw new Error(`process.exit(${String(_code)})`);
+      });
+
+    await expect(mintAdminToken(baseUrl, fakeCookie, 'label')).rejects.toThrow('process.exit(3)');
+    expect(processExitSpy).toHaveBeenCalledWith(3);
+    processExitSpy.mockRestore();
+  });
+
+  it('exits 1 on network error', async () => {
+    mockFetch.mockRejectedValueOnce(new Error('connection refused'));
+    const processExitSpy = vi
+      .spyOn(process, 'exit')
+      .mockImplementation((_code?: number | string | null | undefined) => {
+        throw new Error(`process.exit(${String(_code)})`);
+      });
+
+    await expect(mintAdminToken(baseUrl, fakeCookie, 'label')).rejects.toThrow('process.exit(1)');
+    expect(processExitSpy).toHaveBeenCalledWith(1);
+    processExitSpy.mockRestore();
+  });
+});
+
+describe('persistToken', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('writes the new token to meta.json', () => {
+    mockReadMeta.mockReturnValueOnce(fakeMeta);
+    const consoleSpy = vi.spyOn(console, 'log').mockImplementation(() => {});
+
+    persistToken(baseUrl, fakeToken);
+
+    expect(mockWriteMeta).toHaveBeenCalledWith(
+      expect.objectContaining({ adminToken: fakeToken.plaintext }),
+    );
+    consoleSpy.mockRestore();
+  });
+
+  it('prints a masked preview of the token', () => {
+    mockReadMeta.mockReturnValueOnce(fakeMeta);
+    const consoleSpy = vi.spyOn(console, 'log').mockImplementation(() => {});
+
+    persistToken(baseUrl, fakeToken);
+
+    const allOutput = consoleSpy.mock.calls.map((c) => c.join(' ')).join('\n');
+    expect(allOutput).toContain('abcdef12...');
+    consoleSpy.mockRestore();
+  });
+});
+
+describe('runRotateToken', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    vi.spyOn(console, 'error').mockImplementation(() => {});
+    vi.spyOn(console, 'log').mockImplementation(() => {});
+  });
+
+  it('exits 2 when there is no stored session', async () => {
+    mockLoadSession.mockReturnValueOnce(null);
+    const processExitSpy = vi
+      .spyOn(process, 'exit')
+      .mockImplementation((_code?: number | string | null | undefined) => {
+        throw new Error(`process.exit(${String(_code)})`);
+      });
+
+    await expect(runRotateToken()).rejects.toThrow('process.exit(2)');
+    expect(processExitSpy).toHaveBeenCalledWith(2);
+    processExitSpy.mockRestore();
+  });
+
+  it('exits 2 when session is invalid', async () => {
+    mockLoadSession.mockReturnValueOnce({ cookie: fakeCookie, userId: 'u1', email: 'a@b.com' });
+    mockValidateSession.mockResolvedValueOnce(false);
+    const processExitSpy = vi
+      .spyOn(process, 'exit')
+      .mockImplementation((_code?: number | string | null | undefined) => {
+        throw new Error(`process.exit(${String(_code)})`);
+      });
+
+    await expect(runRotateToken()).rejects.toThrow('process.exit(2)');
+    expect(processExitSpy).toHaveBeenCalledWith(2);
+    processExitSpy.mockRestore();
+  });
+
+  it('mints and persists a new token when session is valid', async () => {
+    mockLoadSession.mockReturnValueOnce({ cookie: fakeCookie, userId: 'u1', email: 'a@b.com' });
+    mockValidateSession.mockResolvedValueOnce(true);
+    mockReadMeta.mockReturnValue(fakeMeta);
+    mockFetch.mockResolvedValueOnce({
+      ok: true,
+      status: 200,
+      json: async () => fakeToken,
+    });
+
+    await runRotateToken();
+
+    expect(mockWriteMeta).toHaveBeenCalledWith(
+      expect.objectContaining({ adminToken: fakeToken.plaintext }),
+    );
+  });
+});

packages/mosaic/src/commands/gateway/token-ops.ts

@@ -0,0 +1,149 @@
+import { createInterface } from 'node:readline';
+import { loadSession, validateSession, signIn, saveSession } from '../../auth.js';
+import { readMeta, writeMeta } from './daemon.js';
+import { getGatewayUrl } from './login.js';
+
+interface MintedToken {
+  id: string;
+  label: string;
+  plaintext: string;
+}
+
+/**
+ * Call POST /api/admin/tokens with the session cookie and return the minted token.
+ * Exits the process on network or auth errors.
+ */
+export async function mintAdminToken(
+  gatewayUrl: string,
+  cookie: string,
+  label: string,
+): Promise<MintedToken> {
+  let res: Response;
+  try {
+    res = await fetch(`${gatewayUrl}/api/admin/tokens`, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        Cookie: cookie,
+        Origin: gatewayUrl,
+      },
+      body: JSON.stringify({ label, scope: 'admin' }),
+    });
+  } catch (err) {
+    console.error(
+      `Could not reach gateway at ${gatewayUrl}: ${err instanceof Error ? err.message : String(err)}`,
+    );
+    process.exit(1);
+  }
+
+  if (res.status === 401 || res.status === 403) {
+    console.error(
+      `Session rejected by the gateway (${res.status.toString()}) — your session may be expired.`,
+    );
+    console.error('Run: mosaic gateway login');
+    process.exit(2);
+  }
+
+  if (!res.ok) {
+    const body = await res.text().catch(() => '');
+    console.error(
+      `Gateway rejected token creation (${res.status.toString()}): ${body.slice(0, 200)}`,
+    );
+    process.exit(3);
+  }
+
+  const data = (await res.json()) as { id: string; label: string; plaintext: string };
+  return { id: data.id, label: data.label, plaintext: data.plaintext };
+}
+
+/**
+ * Persist the new token into meta.json and print the confirmation banner.
+ */
+export function persistToken(gatewayUrl: string, minted: MintedToken): void {
+  const meta = readMeta() ?? {
+    version: 'unknown',
+    installedAt: new Date().toISOString(),
+    entryPoint: '',
+    host: new URL(gatewayUrl).hostname,
+    port: parseInt(new URL(gatewayUrl).port || '14242', 10),
+  };
+
+  writeMeta({ ...meta, adminToken: minted.plaintext });
+
+  const preview = `${minted.plaintext.slice(0, 8)}...`;
+  console.log();
+  console.log(`Token minted:  ${minted.label}`);
+  console.log(`Preview:       ${preview}`);
+  console.log('Token saved to meta.json. Use it with admin endpoints.');
+}
+
+/**
+ * Require a valid session for the given gateway URL.
+ * Returns the session cookie or exits if not authenticated.
+ */
+export async function requireSession(gatewayUrl: string): Promise<string> {
+  const session = loadSession(gatewayUrl);
+  if (session) {
+    const valid = await validateSession(gatewayUrl, session.cookie);
+    if (valid) return session.cookie;
+  }
+  console.error('Not signed in or session expired.');
+  console.error('Run: mosaic gateway login');
+  process.exit(2);
+}
+
+/**
+ * Ensure a valid session for the gateway, prompting for credentials if needed.
+ * On sign-in failure, prints the error and exits non-zero.
+ * Returns the session cookie.
+ */
+export async function ensureSession(gatewayUrl: string): Promise<string> {
+  // Try the stored session first
+  const session = loadSession(gatewayUrl);
+  if (session) {
+    const valid = await validateSession(gatewayUrl, session.cookie);
+    if (valid) return session.cookie;
+    console.log('Stored session is invalid or expired. Please sign in again.');
+  } else {
+    console.log(`No session found for ${gatewayUrl}. Please sign in.`);
+  }
+
+  // Prompt for credentials
+  const rl = createInterface({ input: process.stdin, output: process.stdout });
+  const ask = (q: string): Promise<string> => new Promise((resolve) => rl.question(q, resolve));
+
+  const email = (await ask('Email: ')).trim();
+  const password = (await ask('Password: ')).trim();
+  rl.close();
+
+  const auth = await signIn(gatewayUrl, email, password).catch((err: unknown) => {
+    console.error(err instanceof Error ? err.message : String(err));
+    process.exit(2);
+  });
+
+  saveSession(gatewayUrl, auth);
+  console.log(`Signed in as ${auth.email}`);
+  return auth.cookie;
+}
+
+/**
+ * `mosaic gateway config rotate-token` — requires an existing valid session.
+ */
+export async function runRotateToken(gatewayUrl?: string): Promise<void> {
+  const url = getGatewayUrl(gatewayUrl);
+  const cookie = await requireSession(url);
+  const label = `CLI rotated token (${new Date().toISOString().slice(0, 10)})`;
+  const minted = await mintAdminToken(url, cookie, label);
+  persistToken(url, minted);
+}
+
+/**
+ * `mosaic gateway config recover-token` — prompts for login if no session exists.
+ */
+export async function runRecoverToken(gatewayUrl?: string): Promise<void> {
+  const url = getGatewayUrl(gatewayUrl);
+  const cookie = await ensureSession(url);
+  const label = `CLI recovery token (${new Date().toISOString().slice(0, 16).replace('T', ' ')})`;
+  const minted = await mintAdminToken(url, cookie, label);
+  persistToken(url, minted);
+}

packages/mosaic/src/commands/mission.ts

@@ -47,6 +47,7 @@ export function registerMissionCommand(program: Command) {
     .option('--update <idOrName>', 'Update a mission')
     .option('--project <idOrName>', 'Scope to project')
     .argument('[id]', 'Show mission detail by ID')
+    .configureHelp({ sortSubcommands: true })
     .action(
       async (
         id: string | undefined,

pnpm-lock.yaml

@@ -294,6 +294,9 @@ importers:
       '@mosaicstack/types':
         specifier: workspace:*
         version: link:../types
+      commander:
+        specifier: ^13.0.0
+        version: 13.1.0
     devDependencies:
       typescript:
         specifier: ^5.8.0
@@ -454,6 +457,9 @@ importers:
       '@clack/prompts':
         specifier: ^0.9.1
         version: 0.9.1
+      '@mosaicstack/brain':
+        specifier: workspace:*
+        version: link:../brain
       '@mosaicstack/config':
         specifier: workspace:*
         version: link:../config