feat: add agent configuration support to init command

.husky/pre-commit

@@ -1,4 +1,18 @@
 #!/bin/sh
 # Run linting and build to ensure code quality and dist is up to date
+
+# Get list of staged files before linting
+STAGED_FILES=$(git diff --cached --name-only --diff-filter=ACM)
+
+# Run linting (which may modify files)
 bun run lint
 bun run build
+
+# Re-stage any files that were modified by linting
+if [ -n "$STAGED_FILES" ]; then
+  echo "$STAGED_FILES" | while IFS= read -r file; do
+    if [ -f "$file" ]; then
+      git add "$file"
+    fi
+  done
+fi

README.md

@@ -38,6 +38,9 @@ npm install -D @arittr/commitment
 # 2. Set up git hooks (automatic)
 npx commitment init
 
+# Or configure with a specific AI agent
+npx commitment init --agent gemini
+
 # 3. Make changes and commit
 git add .
 git commit  # Message generated automatically!
@@ -159,6 +162,12 @@ commitment supports multiple hook managers:
 | **simple-git-hooks** | `npx commitment init --hook-manager simple-git-hooks` | Lightweight alternative to husky |
 | **Plain Git Hooks** | `npx commitment init --hook-manager plain` | No dependencies |
 
+**Configure default agent:**
+```bash
+npx commitment init --agent gemini  # Use Gemini by default
+npx commitment init --agent codex   # Use Codex by default
+```
+
 See [docs/HOOKS.md](./docs/HOOKS.md) for detailed hook integration guide.
 
 ## Troubleshooting

src/cli.ts

@@ -126,16 +126,23 @@ async function main(): Promise<void> {
     .command('init')
     .description('Initialize commitment hooks in your project')
     .option('--hook-manager <type>', 'Hook manager to use: husky, simple-git-hooks, plain')
-    .option('--agent <name>', 'AI agent to use: claude, codex, gemini (default: claude)')
+    .option('--agent <name>', 'Default AI agent for hooks: claude, codex, gemini')
     .option('--cwd <path>', 'Working directory', process.cwd())
     .action(
       async (options: {
         cwd: string;
         hookManager?: 'husky' | 'simple-git-hooks' | 'plain';
         agent?: 'claude' | 'codex' | 'gemini';
       }) => {
+        // Parse --agent manually from process.argv due to Commander.js subcommand option conflict
+        const agentFlagIndex = process.argv.indexOf('--agent');
+        const agentValue =
+          agentFlagIndex >= 0 && agentFlagIndex < process.argv.length - 1
+            ? (process.argv[agentFlagIndex + 1] as 'claude' | 'codex' | 'gemini')
+            : undefined;
+
         await initCommand({
-          agent: options.agent,
+          agent: agentValue,
           cwd: options.cwd,
           hookManager: options.hookManager,
         });

src/cli/commands/init.ts

@@ -277,6 +277,9 @@ export async function initCommand(options: InitOptions): Promise<void> {
     // Print next steps
     console.log('');
     console.log(chalk.green('🎉 Setup complete!'));
+    if (options.agent !== undefined) {
+      console.log(chalk.cyan(`   Default agent: ${options.agent}`));
+    }
     console.log('');
     console.log(chalk.cyan('Next steps:'));
     console.log(chalk.white('  1. Stage your changes: ') + chalk.gray('git add .'));