feat: Model selection, parallel agents, and test coverage

.github/workflows/build.yml

@@ -0,0 +1,24 @@
+name: Build 🏗️
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - main
+    paths:
+      - "src/**"
+      - ".github/workflows/build.yml"
+      - "package.json"
+      - "tsconfig.json"
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "20.x"
+      - name: Install Dependencies
+        run: npm ci
+      - name: Build
+        run: npm run compile

.github/workflows/publish.yml

@@ -1,4 +1,4 @@
-name: Publish to VS Code Marketplace
+name: Publish to VS Code Marketplace 🚀
 
 on:
   release:

.github/workflows/test.yml

@@ -0,0 +1,30 @@
+name: Test 🧪
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - main
+    paths:
+      - "src/**"
+      - ".github/workflows/test.yml"
+      - "package.json"
+      - "tsconfig.json"
+      - "esbuild.js"
+      - "jest.config.ts"
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "20.x"
+          cache: "npm"
+      - run: npm ci
+      - name: Run Unit Tests
+        run: npm run test:coverage
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}

.gitignore

@@ -5,6 +5,9 @@
 temp/
 tmp/
 
+# Tests
+coverage/
+
 node_modules/
 dist/
 *.vsix

README.md

@@ -1,6 +1,6 @@
 # <img src="images/clawd-icon.png" height="30"> ClawdCommit
 
-[![Snyk Security Monitored](https://img.shields.io/badge/security-monitored-8A2BE2?logo=snyk)](https://snyk.io/test/github/shiftinbits/clawdcommit) [![License](https://img.shields.io/badge/license-MIT-3DA639?logo=opensourceinitiative&logoColor=white)](LICENSE)
+[![Test Results](https://img.shields.io/github/actions/workflow/status/shiftinbits/clawdcommit/test.yml?branch=main&logo=jest&logoColor=white&label=tests)](https://github.com/shiftinbits/clawdcommit/actions/workflows/test.yml?query=branch%3Amain) [![Code Coverage](https://img.shields.io/codecov/c/github/shiftinbits/clawdcommit?logo=codecov&logoColor=white)](https://app.codecov.io/gh/shiftinbits/clawdcommit/) [![Snyk Security Monitored](https://img.shields.io/badge/security-monitored-8A2BE2?logo=snyk)](https://snyk.io/test/github/shiftinbits/clawdcommit) [![License](https://img.shields.io/badge/license-MIT-3DA639?logo=opensourceinitiative&logoColor=white)](LICENSE)
 
 A VS Code extension that generates git commit messages using the [Claude Code CLI](https://docs.anthropic.com/en/docs/claude-code).
 
@@ -52,6 +52,30 @@ npx @vscode/vsce package
 
 This produces a `.vsix` file you can install in VS Code via **Extensions > Install from VSIX...**.
 
+## Configuration
+
+All settings are available under **Settings > Extensions > ClawdCommit** or via `clawdCommit.*` in `settings.json`.
+
+| Setting | Type | Default | Description |
+|---------|------|---------|-------------|
+| `clawdCommit.analysisModel` | `haiku` \| `sonnet` \| `opus` | `haiku` | Claude model for per-file analysis (map phase). |
+| `clawdCommit.synthesisModel` | `haiku` \| `sonnet` \| `opus` | `sonnet` | Claude model for commit message synthesis (reduce phase). |
+| `clawdCommit.singleCallModel` | `haiku` \| `sonnet` \| `opus` | `sonnet` | Claude model for single-call generation (small commits below the parallel threshold). |
+| `clawdCommit.parallelFileThreshold` | `number` (2–10) | `4` | Minimum changed files to trigger parallel map-reduce analysis. Fewer files use a single call. |
+| `clawdCommit.maxConcurrentAgents` | `number` (1–20) | `5` | Maximum parallel Claude analysis agents. Lower values reduce API load; higher values speed up large commits. |
+| `clawdCommit.includeFileContext` | `boolean` | `true` | Include full staged file content alongside the diff for richer analysis. Disable to reduce token usage. |
+
+### How it works
+
+For small commits (fewer files than `parallelFileThreshold`), ClawdCommit sends a single request to Claude using the `singleCallModel`.
+
+For larger commits, it uses a **map-reduce** strategy:
+
+1. **Map** — Each changed file is analyzed in parallel by an agent using the `analysisModel` (bounded by `maxConcurrentAgents`).
+2. **Reduce** — A synthesis agent combines all per-file analyses into a final commit message using the `synthesisModel`.
+
+If the map-reduce path fails, it automatically falls back to the single-call approach.
+
 ## License
 
-MIT
+MIT — see [LICENSE](./LICENSE).

jest.config.ts

@@ -0,0 +1,30 @@
+import type { Config } from 'jest';
+
+const config: Config = {
+    preset: 'ts-jest',
+    testEnvironment: 'node',
+    roots: ['<rootDir>/src'],
+    testMatch: ['**/__tests__/**/*.test.ts'],
+    moduleNameMapper: {
+        '^vscode$': '<rootDir>/src/__mocks__/vscode.ts',
+    },
+    transform: {
+        '^.+\\.ts$': ['ts-jest', {
+            tsconfig: 'tsconfig.test.json',
+            diagnostics: { ignoreCodes: [151002] },
+        }],
+    },
+    collectCoverageFrom: [
+        'src/**/*.ts',
+        '!src/types/**',
+        '!src/extension.ts',
+        '!src/__mocks__/**',
+        '!src/__tests__/**',
+    ],
+    coverageDirectory: 'coverage',
+    coverageReporters: ['text', 'text-summary', 'lcov'],
+    clearMocks: true,
+    restoreMocks: true,
+};
+
+export default config;