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.agents/skills/turborepo/references/watch/RULE.md

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+# turbo watch
+
+Full docs: https://turborepo.dev/docs/reference/watch
+
+Re-run tasks automatically when code changes. Dependency-aware.
+
+```bash
+turbo watch [tasks]
+```
+
+## Basic Usage
+
+```bash
+# Watch and re-run build task when code changes
+turbo watch build
+
+# Watch multiple tasks
+turbo watch build test lint
+```
+
+Tasks re-run in order configured in `turbo.json` when source files change.
+
+## With Persistent Tasks
+
+Persistent tasks (`"persistent": true`) won't exit, so they can't be depended on. They work the same in `turbo watch` as `turbo run`.
+
+### Dependency-Aware Persistent Tasks
+
+If your tool has built-in watching (like `next dev`), use its watcher:
+
+```json
+{
+  "tasks": {
+    "dev": {
+      "persistent": true,
+      "cache": false
+    }
+  }
+}
+```
+
+### Non-Dependency-Aware Tools
+
+For tools that don't detect dependency changes, use `interruptible`:
+
+```json
+{
+  "tasks": {
+    "dev": {
+      "persistent": true,
+      "interruptible": true,
+      "cache": false
+    }
+  }
+}
+```
+
+`turbo watch` will restart interruptible tasks when dependencies change.
+
+## Limitations
+
+### Caching
+
+Caching is experimental with watch mode:
+
+```bash
+turbo watch your-tasks --experimental-write-cache
+```
+
+### Task Outputs in Source Control
+
+If tasks write files tracked by git, watch mode may loop infinitely. Watch mode uses file hashes to prevent this but it's not foolproof.
+
+**Recommendation**: Remove task outputs from git.
+
+## vs turbo run
+
+| Feature           | `turbo run` | `turbo watch` |
+| ----------------- | ----------- | ------------- |
+| Runs once         | Yes         | No            |
+| Re-runs on change | No          | Yes           |
+| Caching           | Full        | Experimental  |
+| Use case          | CI, one-off | Development   |
+
+## Common Patterns
+
+### Development Workflow
+
+```bash
+# Run dev servers and watch for build changes
+turbo watch dev build
+```
+
+### Type Checking During Development
+
+```bash
+# Watch and re-run type checks
+turbo watch check-types
+```