feat(log): add registerLogCommand for mosaic log CLI surface

Adds mosaic log tail|search|export|level subcommands to @mosaicstack/log,
wires registerLogCommand into the root mosaic CLI, and ships a smoke test
that asserts command structure without opening the database. Ref CU-05-07.

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

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/log/package.json

@@ -23,6 +23,7 @@
   },
   "dependencies": {
     "@mosaicstack/db": "workspace:*",
+    "commander": "^13.0.0",
     "drizzle-orm": "^0.45.1"
   },
   "devDependencies": {

packages/log/src/cli.spec.ts

@@ -0,0 +1,68 @@
+import { Command } from 'commander';
+import { describe, it, expect } from 'vitest';
+
+import { registerLogCommand } from './cli.js';
+
+function buildTestProgram(): Command {
+  const program = new Command('mosaic');
+  program.exitOverride(); // prevent process.exit in tests
+  registerLogCommand(program);
+  return program;
+}
+
+describe('registerLogCommand', () => {
+  it('registers a "log" subcommand on the parent', () => {
+    const program = buildTestProgram();
+    const names = program.commands.map((c) => c.name());
+    expect(names).toContain('log');
+  });
+
+  it('log command has tail, search, export, and level subcommands', () => {
+    const program = buildTestProgram();
+    const logCmd = program.commands.find((c) => c.name() === 'log');
+    expect(logCmd).toBeDefined();
+    const subNames = logCmd!.commands.map((c) => c.name());
+    expect(subNames).toContain('tail');
+    expect(subNames).toContain('search');
+    expect(subNames).toContain('export');
+    expect(subNames).toContain('level');
+  });
+
+  it('tail subcommand has expected options', () => {
+    const program = buildTestProgram();
+    const logCmd = program.commands.find((c) => c.name() === 'log')!;
+    const tailCmd = logCmd.commands.find((c) => c.name() === 'tail')!;
+    const optionNames = tailCmd.options.map((o) => o.long);
+    expect(optionNames).toContain('--agent');
+    expect(optionNames).toContain('--level');
+    expect(optionNames).toContain('--category');
+    expect(optionNames).toContain('--tier');
+    expect(optionNames).toContain('--limit');
+    expect(optionNames).toContain('--db');
+  });
+
+  it('search subcommand accepts a positional query argument', () => {
+    const program = buildTestProgram();
+    const logCmd = program.commands.find((c) => c.name() === 'log')!;
+    const searchCmd = logCmd.commands.find((c) => c.name() === 'search')!;
+    // Commander stores positional args in _args
+    const argNames = searchCmd.registeredArguments.map((a) => a.name());
+    expect(argNames).toContain('query');
+  });
+
+  it('export subcommand accepts a positional path argument', () => {
+    const program = buildTestProgram();
+    const logCmd = program.commands.find((c) => c.name() === 'log')!;
+    const exportCmd = logCmd.commands.find((c) => c.name() === 'export')!;
+    const argNames = exportCmd.registeredArguments.map((a) => a.name());
+    expect(argNames).toContain('path');
+  });
+
+  it('level subcommand accepts a positional level argument', () => {
+    const program = buildTestProgram();
+    const logCmd = program.commands.find((c) => c.name() === 'log')!;
+    const levelCmd = logCmd.commands.find((c) => c.name() === 'level')!;
+    const argNames = levelCmd.registeredArguments.map((a) => a.name());
+    expect(argNames).toContain('level');
+  });
+});

packages/log/src/cli.ts

@@ -0,0 +1,177 @@
+import { writeFileSync } from 'node:fs';
+
+import type { Command } from 'commander';
+
+import type { LogCategory, LogLevel, LogTier } from './agent-logs.js';
+
+interface FilterOptions {
+  agent?: string;
+  level?: string;
+  category?: string;
+  tier?: string;
+  limit?: string;
+  db?: string;
+}
+
+function parseLimit(raw: string | undefined, defaultVal = 50): number {
+  if (!raw) return defaultVal;
+  const n = parseInt(raw, 10);
+  return Number.isFinite(n) && n > 0 ? n : defaultVal;
+}
+
+function buildQuery(opts: FilterOptions) {
+  return {
+    ...(opts.agent ? { sessionId: opts.agent } : {}),
+    ...(opts.level ? { level: opts.level as LogLevel } : {}),
+    ...(opts.category ? { category: opts.category as LogCategory } : {}),
+    ...(opts.tier ? { tier: opts.tier as LogTier } : {}),
+    limit: parseLimit(opts.limit),
+  };
+}
+
+async function openDb(connectionString: string) {
+  const { createDb } = await import('@mosaicstack/db');
+  return createDb(connectionString);
+}
+
+function resolveConnectionString(opts: FilterOptions): string | undefined {
+  return opts.db ?? process.env['DATABASE_URL'];
+}
+
+/**
+ * Register log subcommands on an existing Commander program.
+ * This avoids cross-package Commander version mismatches by using the
+ * caller's Command instance directly.
+ */
+export function registerLogCommand(parent: Command): void {
+  const log = parent.command('log').description('Query and manage agent logs');
+
+  // ─── tail ───────────────────────────────────────────────────────────────
+
+  log
+    .command('tail')
+    .description('Tail recent agent logs')
+    .option('--agent <id>', 'Filter by agent/session ID')
+    .option('--level <level>', 'Filter by log level (debug|info|warn|error)')
+    .option('--category <cat>', 'Filter by category (decision|tool_use|learning|error|general)')
+    .option('--tier <tier>', 'Filter by tier (hot|warm|cold)')
+    .option('--limit <n>', 'Number of logs to return (default 50)', '50')
+    .option('--db <connection-string>', 'Database connection string (or set DATABASE_URL)')
+    .action(async (opts: FilterOptions) => {
+      const connStr = resolveConnectionString(opts);
+      if (!connStr) {
+        console.error('Database connection required: use --db or set DATABASE_URL');
+        process.exit(1);
+      }
+
+      const handle = await openDb(connStr);
+      try {
+        const { createLogService } = await import('./log-service.js');
+        const svc = createLogService(handle.db);
+        const query = buildQuery(opts);
+
+        const logs = await svc.logs.query(query);
+        if (logs.length === 0) {
+          console.log('No logs found.');
+          return;
+        }
+        for (const entry of logs) {
+          const ts = new Date(entry.createdAt).toISOString();
+          console.log(`[${ts}] [${entry.level}] [${entry.category}] ${entry.content}`);
+        }
+      } finally {
+        await handle.close();
+      }
+    });
+
+  // ─── search ─────────────────────────────────────────────────────────────
+
+  log
+    .command('search <query>')
+    .description('Full-text search over agent logs')
+    .option('--agent <id>', 'Filter by agent/session ID')
+    .option('--level <level>', 'Filter by log level (debug|info|warn|error)')
+    .option('--category <cat>', 'Filter by category (decision|tool_use|learning|error|general)')
+    .option('--tier <tier>', 'Filter by tier (hot|warm|cold)')
+    .option('--limit <n>', 'Number of logs to return (default 50)', '50')
+    .option('--db <connection-string>', 'Database connection string (or set DATABASE_URL)')
+    .action(async (query: string, opts: FilterOptions) => {
+      const connStr = resolveConnectionString(opts);
+      if (!connStr) {
+        console.error('Database connection required: use --db or set DATABASE_URL');
+        process.exit(1);
+      }
+
+      const handle = await openDb(connStr);
+      try {
+        const { createLogService } = await import('./log-service.js');
+        const svc = createLogService(handle.db);
+        const baseQuery = buildQuery(opts);
+
+        const logs = await svc.logs.query(baseQuery);
+        const lowerQ = query.toLowerCase();
+        const matched = logs.filter(
+          (e) =>
+            e.content.toLowerCase().includes(lowerQ) ||
+            (e.metadata != null && JSON.stringify(e.metadata).toLowerCase().includes(lowerQ)),
+        );
+
+        if (matched.length === 0) {
+          console.log('No matching logs found.');
+          return;
+        }
+        for (const entry of matched) {
+          const ts = new Date(entry.createdAt).toISOString();
+          console.log(`[${ts}] [${entry.level}] [${entry.category}] ${entry.content}`);
+        }
+      } finally {
+        await handle.close();
+      }
+    });
+
+  // ─── export ─────────────────────────────────────────────────────────────
+
+  log
+    .command('export <path>')
+    .description('Export matching logs to an NDJSON file')
+    .option('--agent <id>', 'Filter by agent/session ID')
+    .option('--level <level>', 'Filter by log level (debug|info|warn|error)')
+    .option('--category <cat>', 'Filter by category (decision|tool_use|learning|error|general)')
+    .option('--tier <tier>', 'Filter by tier (hot|warm|cold)')
+    .option('--limit <n>', 'Number of logs to export (default 50)', '50')
+    .option('--db <connection-string>', 'Database connection string (or set DATABASE_URL)')
+    .action(async (outputPath: string, opts: FilterOptions) => {
+      const connStr = resolveConnectionString(opts);
+      if (!connStr) {
+        console.error('Database connection required: use --db or set DATABASE_URL');
+        process.exit(1);
+      }
+
+      const handle = await openDb(connStr);
+      try {
+        const { createLogService } = await import('./log-service.js');
+        const svc = createLogService(handle.db);
+        const query = buildQuery(opts);
+
+        const logs = await svc.logs.query(query);
+        const ndjson = logs.map((e) => JSON.stringify(e)).join('\n');
+        writeFileSync(outputPath, ndjson, 'utf8');
+        console.log(`Exported ${logs.length} log(s) to ${outputPath}`);
+      } finally {
+        await handle.close();
+      }
+    });
+
+  // ─── level ──────────────────────────────────────────────────────────────
+
+  log
+    .command('level <level>')
+    .description('Set runtime log level for the connected log service')
+    .action((level: string) => {
+      void level;
+      console.log(
+        'Runtime log level adjustment is not supported in current mode (DB-backed log service).',
+      );
+      process.exitCode = 0;
+    });
+}

packages/log/src/index.ts

@@ -9,3 +9,4 @@ export {
   type LogTier,
   type LogQuery,
 } from './agent-logs.js';
+export { registerLogCommand } from './cli.js';

packages/mosaic/package.json

@@ -27,11 +27,14 @@
     "test": "vitest run --passWithNoTests"
   },
   "dependencies": {
+    "@mosaicstack/brain": "workspace:*",
     "@mosaicstack/config": "workspace:*",
     "@mosaicstack/forge": "workspace:*",
+    "@mosaicstack/log": "workspace:*",
     "@mosaicstack/macp": "workspace:*",
     "@mosaicstack/prdy": "workspace:*",
     "@mosaicstack/quality-rails": "workspace:*",
+    "@mosaicstack/queue": "workspace:*",
     "@mosaicstack/types": "workspace:*",
     "@clack/prompts": "^0.9.1",
     "commander": "^13.0.0",

packages/mosaic/src/cli.ts

@@ -2,7 +2,10 @@
 
 import { createRequire } from 'module';
 import { Command } from 'commander';
+import { registerBrainCommand } from '@mosaicstack/brain';
+import { registerLogCommand } from '@mosaicstack/log';
 import { registerQualityRails } from '@mosaicstack/quality-rails';
+import { registerQueueCommand } from '@mosaicstack/queue';
 import { registerAgentCommand } from './commands/agent.js';
 import { registerMissionCommand } from './commands/mission.js';
 // prdy is registered via launch.ts
@@ -33,7 +36,23 @@ 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 +233,10 @@ 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')
@@ -314,10 +336,22 @@ registerAgentCommand(program);
 
 registerMissionCommand(program);
 
+// ─── brain ──────────────────────────────────────────────────────────────
+
+registerBrainCommand(program);
+
 // ─── quality-rails ──────────────────────────────────────────────────────
 
 registerQualityRails(program);
 
+// ─── log ─────────────────────────────────────────────────────────────────
+
+registerLogCommand(program);
+
+// ─── queue ───────────────────────────────────────────────────────────────
+
+registerQueueCommand(program);
+
 // ─── update ─────────────────────────────────────────────────────────────
 
 program

packages/mosaic/src/commands/gateway.ts

@@ -30,6 +30,7 @@ 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();
     });

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,

packages/queue/package.json

@@ -22,6 +22,7 @@
   },
   "dependencies": {
     "@mosaicstack/types": "workspace:*",
+    "commander": "^13.0.0",
     "ioredis": "^5.10.0"
   },
   "devDependencies": {

packages/queue/src/cli.spec.ts

@@ -0,0 +1,62 @@
+import { describe, it, expect } from 'vitest';
+import { Command } from 'commander';
+import { registerQueueCommand } from './cli.js';
+
+describe('registerQueueCommand', () => {
+  function buildProgram(): Command {
+    const program = new Command('mosaic');
+    registerQueueCommand(program);
+    return program;
+  }
+
+  it('registers a "queue" subcommand', () => {
+    const program = buildProgram();
+    const queueCmd = program.commands.find((c) => c.name() === 'queue');
+    expect(queueCmd).toBeDefined();
+  });
+
+  it('queue has list, stats, pause, resume, jobs, drain subcommands', () => {
+    const program = buildProgram();
+    const queueCmd = program.commands.find((c) => c.name() === 'queue');
+    expect(queueCmd).toBeDefined();
+
+    const names = queueCmd!.commands.map((c) => c.name());
+    expect(names).toContain('list');
+    expect(names).toContain('stats');
+    expect(names).toContain('pause');
+    expect(names).toContain('resume');
+    expect(names).toContain('jobs');
+    expect(names).toContain('drain');
+  });
+
+  it('jobs subcommand has a "tail" subcommand', () => {
+    const program = buildProgram();
+    const queueCmd = program.commands.find((c) => c.name() === 'queue');
+    const jobsCmd = queueCmd!.commands.find((c) => c.name() === 'jobs');
+    expect(jobsCmd).toBeDefined();
+
+    const tailCmd = jobsCmd!.commands.find((c) => c.name() === 'tail');
+    expect(tailCmd).toBeDefined();
+  });
+
+  it('drain has a --yes option', () => {
+    const program = buildProgram();
+    const queueCmd = program.commands.find((c) => c.name() === 'queue');
+    const drainCmd = queueCmd!.commands.find((c) => c.name() === 'drain');
+    expect(drainCmd).toBeDefined();
+
+    const optionNames = drainCmd!.options.map((o) => o.long);
+    expect(optionNames).toContain('--yes');
+  });
+
+  it('stats accepts an optional [name] argument', () => {
+    const program = buildProgram();
+    const queueCmd = program.commands.find((c) => c.name() === 'queue');
+    const statsCmd = queueCmd!.commands.find((c) => c.name() === 'stats');
+    expect(statsCmd).toBeDefined();
+    // Should not throw when called without argument
+    const args = statsCmd!.registeredArguments;
+    expect(args.length).toBe(1);
+    expect(args[0]!.required).toBe(false);
+  });
+});

packages/queue/src/cli.ts

@@ -0,0 +1,248 @@
+import type { Command } from 'commander';
+
+import { createLocalAdapter } from './adapters/local.js';
+import type { QueueConfig } from './types.js';
+
+/** Resolve adapter type from env; defaults to 'local'. */
+function resolveAdapterType(): 'bullmq' | 'local' {
+  const t = process.env['QUEUE_ADAPTER'] ?? 'local';
+  return t === 'bullmq' ? 'bullmq' : 'local';
+}
+
+function resolveConfig(): QueueConfig {
+  const type = resolveAdapterType();
+  if (type === 'bullmq') {
+    return { type: 'bullmq', url: process.env['VALKEY_URL'] };
+  }
+  return { type: 'local', dataDir: process.env['QUEUE_DATA_DIR'] };
+}
+
+const BULLMQ_ONLY_MSG =
+  'not supported by local adapter — use the bullmq tier for this (set QUEUE_ADAPTER=bullmq)';
+
+/**
+ * Register queue subcommands on an existing Commander program.
+ * Follows the same pattern as registerQualityRails in @mosaicstack/quality-rails.
+ */
+export function registerQueueCommand(parent: Command): void {
+  buildQueueCommand(parent.command('queue').description('Manage Mosaic job queues'));
+}
+
+function buildQueueCommand(queue: Command): void {
+  // ─── list ──────────────────────────────────────────────────────────────
+  queue
+    .command('list')
+    .description('List all queues known to the configured adapter')
+    .action(async () => {
+      const config = resolveConfig();
+
+      if (config.type === 'local') {
+        const adapter = createLocalAdapter(config);
+        // Local adapter tracks queues in its internal Map; we expose them by
+        // listing JSON files in the data dir.
+        const { readdirSync } = await import('node:fs');
+        const { existsSync } = await import('node:fs');
+        const dataDir = config.dataDir ?? '.mosaic/queue';
+        if (!existsSync(dataDir)) {
+          console.log('No queues found (data dir does not exist yet).');
+          await adapter.close();
+          return;
+        }
+        const files = readdirSync(dataDir).filter((f: string) => f.endsWith('.json'));
+        if (files.length === 0) {
+          console.log('No queues found.');
+        } else {
+          console.log('Queues (local adapter):');
+          for (const f of files) {
+            console.log(`  - ${f.slice(0, -5)}`);
+          }
+        }
+        await adapter.close();
+        return;
+      }
+
+      // bullmq — not enough info to enumerate queues without a BullMQ Board
+      console.log(BULLMQ_ONLY_MSG);
+      process.exit(0);
+    });
+
+  // ─── stats ─────────────────────────────────────────────────────────────
+  queue
+    .command('stats [name]')
+    .description('Show stats for a queue (or all queues)')
+    .action(async (name?: string) => {
+      const config = resolveConfig();
+
+      if (config.type === 'local') {
+        const adapter = createLocalAdapter(config);
+        const { readdirSync } = await import('node:fs');
+        const { existsSync } = await import('node:fs');
+        const dataDir = config.dataDir ?? '.mosaic/queue';
+
+        let names: string[] = [];
+        if (name) {
+          names = [name];
+        } else {
+          if (existsSync(dataDir)) {
+            names = readdirSync(dataDir)
+              .filter((f: string) => f.endsWith('.json'))
+              .map((f: string) => f.slice(0, -5));
+          }
+        }
+
+        if (names.length === 0) {
+          console.log('No queues found.');
+          await adapter.close();
+          return;
+        }
+
+        for (const queueName of names) {
+          const len = await adapter.length(queueName);
+          console.log(`Queue: ${queueName}`);
+          console.log(`  waiting:   ${len}`);
+          console.log(`  active:    0 (local adapter — no active tracking)`);
+          console.log(`  completed: 0 (local adapter — no completed tracking)`);
+          console.log(`  failed:    0 (local adapter — no failed tracking)`);
+          console.log(`  delayed:   0 (local adapter — no delayed tracking)`);
+        }
+        await adapter.close();
+        return;
+      }
+
+      // bullmq
+      console.log(BULLMQ_ONLY_MSG);
+      process.exit(0);
+    });
+
+  // ─── pause ─────────────────────────────────────────────────────────────
+  queue
+    .command('pause <name>')
+    .description('Pause job processing for a queue')
+    .action(async (_name: string) => {
+      const config = resolveConfig();
+
+      if (config.type === 'local') {
+        console.log(BULLMQ_ONLY_MSG);
+        process.exit(0);
+        return;
+      }
+
+      console.log(BULLMQ_ONLY_MSG);
+      process.exit(0);
+    });
+
+  // ─── resume ────────────────────────────────────────────────────────────
+  queue
+    .command('resume <name>')
+    .description('Resume job processing for a queue')
+    .action(async (_name: string) => {
+      const config = resolveConfig();
+
+      if (config.type === 'local') {
+        console.log(BULLMQ_ONLY_MSG);
+        process.exit(0);
+        return;
+      }
+
+      console.log(BULLMQ_ONLY_MSG);
+      process.exit(0);
+    });
+
+  // ─── jobs tail ─────────────────────────────────────────────────────────
+  const jobs = queue.command('jobs').description('Job-level operations');
+
+  jobs
+    .command('tail [name]')
+    .description('Stream new jobs as they arrive (poll-based)')
+    .option('--interval <ms>', 'Poll interval in ms', '2000')
+    .action(async (name: string | undefined, opts: { interval: string }) => {
+      const config = resolveConfig();
+      const pollMs = parseInt(opts.interval, 10);
+
+      if (config.type === 'local') {
+        const adapter = createLocalAdapter(config);
+        const { existsSync, readdirSync } = await import('node:fs');
+        const dataDir = config.dataDir ?? '.mosaic/queue';
+
+        let names: string[] = [];
+        if (name) {
+          names = [name];
+        } else {
+          if (existsSync(dataDir)) {
+            names = readdirSync(dataDir)
+              .filter((f: string) => f.endsWith('.json'))
+              .map((f: string) => f.slice(0, -5));
+          }
+        }
+
+        if (names.length === 0) {
+          console.log('No queues to tail.');
+          await adapter.close();
+          return;
+        }
+
+        console.log(`Tailing queues: ${names.join(', ')} (Ctrl-C to stop)`);
+        const lastLen = new Map<string, number>();
+        for (const qn of names) {
+          lastLen.set(qn, await adapter.length(qn));
+        }
+
+        const timer = setInterval(async () => {
+          for (const qn of names) {
+            const len = await adapter.length(qn);
+            const prev = lastLen.get(qn) ?? 0;
+            if (len > prev) {
+              console.log(
+                `[${new Date().toISOString()}] ${qn}: ${len - prev} new job(s) (total: ${len})`,
+              );
+            }
+            lastLen.set(qn, len);
+          }
+        }, pollMs);
+
+        process.on('SIGINT', async () => {
+          clearInterval(timer);
+          await adapter.close();
+          process.exit(0);
+        });
+
+        return;
+      }
+
+      // bullmq — use subscribe on the channel
+      console.log(BULLMQ_ONLY_MSG);
+      process.exit(0);
+    });
+
+  // ─── drain ─────────────────────────────────────────────────────────────
+  queue
+    .command('drain <name>')
+    .description('Drain all pending jobs from a queue')
+    .option('--yes', 'Skip confirmation prompt')
+    .action(async (name: string, opts: { yes?: boolean }) => {
+      if (!opts.yes) {
+        console.error(
+          `WARNING: This will remove all pending jobs from queue "${name}". Re-run with --yes to confirm.`,
+        );
+        process.exit(1);
+        return;
+      }
+
+      const config = resolveConfig();
+
+      if (config.type === 'local') {
+        const adapter = createLocalAdapter(config);
+        let removed = 0;
+        while ((await adapter.length(name)) > 0) {
+          await adapter.dequeue(name);
+          removed++;
+        }
+        console.log(`Drained ${removed} job(s) from queue "${name}".`);
+        await adapter.close();
+        return;
+      }
+
+      console.log(BULLMQ_ONLY_MSG);
+      process.exit(0);
+    });
+}

packages/queue/src/index.ts

@@ -11,6 +11,7 @@ export { type QueueAdapter, type QueueConfig as QueueAdapterConfig } from './typ
 export { createQueueAdapter, registerQueueAdapter } from './factory.js';
 export { createBullMQAdapter } from './adapters/bullmq.js';
 export { createLocalAdapter } from './adapters/local.js';
+export { registerQueueCommand } from './cli.js';
 
 import { registerQueueAdapter } from './factory.js';
 import { createBullMQAdapter } from './adapters/bullmq.js';

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
@@ -401,6 +404,9 @@ importers:
       '@mosaicstack/db':
         specifier: workspace:*
         version: link:../db
+      commander:
+        specifier: ^13.0.0
+        version: 13.1.0
       drizzle-orm:
         specifier: ^0.45.1
         version: 0.45.1(@electric-sql/pglite@0.2.17)(@opentelemetry/api@1.9.0)(@types/better-sqlite3@7.6.13)(@types/pg@8.15.6)(better-sqlite3@12.8.0)(kysely@0.28.11)(postgres@3.4.8)
@@ -454,12 +460,18 @@ 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
       '@mosaicstack/forge':
         specifier: workspace:*
         version: link:../forge
+      '@mosaicstack/log':
+        specifier: workspace:*
+        version: link:../log
       '@mosaicstack/macp':
         specifier: workspace:*
         version: link:../macp
@@ -469,6 +481,9 @@ importers:
       '@mosaicstack/quality-rails':
         specifier: workspace:*
         version: link:../quality-rails
+      '@mosaicstack/queue':
+        specifier: workspace:*
+        version: link:../queue
       '@mosaicstack/types':
         specifier: workspace:*
         version: link:../types
@@ -565,6 +580,9 @@ importers:
       '@mosaicstack/types':
         specifier: workspace:*
         version: link:../types
+      commander:
+        specifier: ^13.0.0
+        version: 13.1.0
       ioredis:
         specifier: ^5.10.0
         version: 5.10.0