feat(wave3): add @mosaic/quality-rails — TypeScript code quality scaffolder

- Project detection: detectProjectKind (node/python/rust/unknown)
- Scaffolder: writes ESLint/Biome/pre-commit configs based on profile
- Embedded templates for strict/standard/minimal profiles
- CLI: quality-rails init | check | doctor
- Depends on @mosaic/types workspace:*

packages/cli/bin/mosaic.ts

@@ -0,0 +1,5 @@
+#!/usr/bin/env node
+
+import { rootCommand } from '../src/root-command.js';
+
+rootCommand.parseAsync(process.argv);

packages/cli/eslint.config.js

@@ -0,0 +1,15 @@
+import tsParser from '@typescript-eslint/parser';
+
+export default [
+  {
+    files: ['src/**/*.ts', 'bin/**/*.ts', 'tests/**/*.ts'],
+    languageOptions: {
+      parser: tsParser,
+      parserOptions: {
+        ecmaVersion: 'latest',
+        sourceType: 'module',
+      },
+    },
+    rules: {},
+  },
+];

packages/cli/package.json

@@ -0,0 +1,33 @@
+{
+  "name": "@mosaic/cli",
+  "version": "0.1.0",
+  "type": "module",
+  "description": "Mosaic unified CLI — the mosaic command",
+  "bin": {
+    "mosaic": "./dist/bin/mosaic.js"
+  },
+  "scripts": {
+    "build": "tsc -p tsconfig.json",
+    "typecheck": "tsc --noEmit",
+    "lint": "eslint src/",
+    "test": "vitest run"
+  },
+  "dependencies": {
+    "@mosaic/types": "workspace:*",
+    "@mosaic/coord": "workspace:*",
+    "@mosaic/queue": "workspace:*",
+    "commander": "^13",
+    "picocolors": "^1.1"
+  },
+  "devDependencies": {
+    "@types/node": "^22",
+    "@typescript-eslint/parser": "^8",
+    "eslint": "^9",
+    "typescript": "^5",
+    "vitest": "^2"
+  },
+  "publishConfig": {
+    "registry": "https://git.mosaicstack.dev/api/packages/mosaic/npm",
+    "access": "public"
+  }
+}

packages/cli/src/commands/coord.ts

@@ -0,0 +1,15 @@
+import { Command } from 'commander';
+
+import { buildCoordCli } from '@mosaic/coord/dist/cli.js';
+
+const COMMAND_NAME = 'coord';
+
+export function registerCoordCommand(program: Command): void {
+  const coordCommand = buildCoordCli().commands.find((command) => command.name() === COMMAND_NAME);
+
+  if (coordCommand === undefined) {
+    throw new Error('Expected @mosaic/coord to expose a "coord" command.');
+  }
+
+  program.addCommand(coordCommand);
+}

packages/cli/src/commands/prdy.ts

@@ -0,0 +1,13 @@
+import { Command } from 'commander';
+import pc from 'picocolors';
+
+// TODO(wave3): Replace this temporary shim once @mosaic/prdy lands in main.
+export function registerPrdyCommand(program: Command): void {
+  program
+    .command('prdy')
+    .description('PRD workflow commands')
+    .action(() => {
+      console.error(pc.yellow('@mosaic/prdy CLI is not available in this workspace yet.'));
+      process.exitCode = 1;
+    });
+}

packages/cli/src/commands/quality-rails.ts

@@ -0,0 +1,15 @@
+import { Command } from 'commander';
+import pc from 'picocolors';
+
+// TODO(wave3): Replace this temporary shim once @mosaic/quality-rails lands in main.
+export function registerQualityRailsCommand(program: Command): void {
+  program
+    .command('quality-rails')
+    .description('Quality rail commands')
+    .action(() => {
+      console.error(
+        pc.yellow('@mosaic/quality-rails CLI is not available in this workspace yet.'),
+      );
+      process.exitCode = 1;
+    });
+}

packages/cli/src/commands/queue.ts

@@ -0,0 +1,15 @@
+import { Command } from 'commander';
+
+import { buildQueueCli } from '@mosaic/queue';
+
+const COMMAND_NAME = 'queue';
+
+export function registerQueueCommand(program: Command): void {
+  const queueCommand = buildQueueCli().commands.find((command) => command.name() === COMMAND_NAME);
+
+  if (queueCommand === undefined) {
+    throw new Error('Expected @mosaic/queue to expose a "queue" command.');
+  }
+
+  program.addCommand(queueCommand);
+}

packages/cli/src/index.ts

@@ -0,0 +1 @@
+export { rootCommand } from './root-command.js';

packages/cli/src/root-command.ts

@@ -0,0 +1,17 @@
+import { Command } from 'commander';
+
+import { registerCoordCommand } from './commands/coord.js';
+import { registerPrdyCommand } from './commands/prdy.js';
+import { registerQualityRailsCommand } from './commands/quality-rails.js';
+import { registerQueueCommand } from './commands/queue.js';
+import { VERSION } from './version.js';
+
+export const rootCommand = new Command()
+  .name('mosaic')
+  .version(VERSION)
+  .description('Mosaic — AI agent orchestration platform');
+
+registerCoordCommand(rootCommand);
+registerPrdyCommand(rootCommand);
+registerQueueCommand(rootCommand);
+registerQualityRailsCommand(rootCommand);

packages/cli/src/version.ts

@@ -0,0 +1 @@
+export const VERSION = '0.1.0';

packages/cli/tests/root-command.test.ts

@@ -0,0 +1,18 @@
+import { describe, expect, it } from 'vitest';
+
+import { rootCommand } from '../src/root-command.js';
+
+describe('rootCommand', () => {
+  it('registers all top-level subcommand groups', () => {
+    const registeredSubcommands = rootCommand.commands
+      .map((command) => command.name())
+      .sort((left, right) => left.localeCompare(right));
+
+    expect(registeredSubcommands).toEqual([
+      'coord',
+      'prdy',
+      'quality-rails',
+      'queue',
+    ]);
+  });
+});

packages/cli/tsconfig.json

@@ -0,0 +1,5 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": { "outDir": "dist", "rootDir": "." },
+  "include": ["src", "bin"]
+}

pnpm-lock.yaml

@@ -21,6 +21,40 @@ importers:
         specifier: ^5
         version: 5.9.3
 
+  packages/cli:
+    dependencies:
+      '@mosaic/coord':
+        specifier: workspace:*
+        version: link:../coord
+      '@mosaic/queue':
+        specifier: workspace:*
+        version: link:../queue
+      '@mosaic/types':
+        specifier: workspace:*
+        version: link:../types
+      commander:
+        specifier: ^13
+        version: 13.1.0
+      picocolors:
+        specifier: ^1.1
+        version: 1.1.1
+    devDependencies:
+      '@types/node':
+        specifier: ^22
+        version: 22.19.15
+      '@typescript-eslint/parser':
+        specifier: ^8
+        version: 8.56.1(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3)
+      eslint:
+        specifier: ^9
+        version: 9.39.4(jiti@2.6.1)
+      typescript:
+        specifier: ^5
+        version: 5.9.3
+      vitest:
+        specifier: ^2
+        version: 2.1.9(@types/node@22.19.15)
+
   packages/coord:
     dependencies:
       '@mosaic/queue':