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paseo/docs/DEVELOPMENT.md

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# Development
## Prerequisites
- Node.js (see `.tool-versions` for exact version)
- npm workspaces (comes with Node)
## Running the dev server
```bash
npm run dev
```
The dev script automatically picks an available port. Both the server and Expo app run in a Tmux session — see `CLAUDE.local.md` for system-specific session details.
### Running alongside the main checkout
Set `PASEO_HOME` to isolate state when running a second instance (e.g., in a worktree):
```bash
PASEO_HOME=~/.paseo-blue npm run dev
```
- `PASEO_HOME` — path for runtime state (agents, sockets, etc.). Defaults to `~/.paseo`.
### Default ports
In the main checkout:
- Daemon: `localhost:6767`
- Expo app: `localhost:8081`
In worktrees or with `npm run dev`, ports may differ. Never assume defaults.
### Daemon logs
Check `$PASEO_HOME/daemon.log` for trace-level logs.
## Build sync gotchas
### Relay → Daemon
When changing `packages/relay/src/*`, rebuild before running the daemon:
```bash
npm run build --workspace=@getpaseo/relay
```
The Node daemon imports `@getpaseo/relay` from `packages/relay/dist/*`, not `src/*`.
### Server → CLI
When changing `packages/server/src/client/*` (especially `daemon-client.ts`) or shared WS protocol types, rebuild before running CLI commands:
```bash
npm run build --workspace=@getpaseo/server
```
The CLI imports `@getpaseo/server` via package exports resolving to `dist/*`. Stale `dist` means the CLI speaks an old protocol and fails with handshake warnings or timeouts.
## CLI reference
Use `npm run cli` to run the local CLI (instead of the globally installed `paseo` which points to the main checkout).
```bash
npm run cli -- ls -a -g # List all agents globally
npm run cli -- ls -a -g --json # Same, as JSON
npm run cli -- inspect <id> # Show detailed agent info
npm run cli -- logs <id> # View agent timeline
npm run cli -- daemon status # Check daemon status
```
Use `--host <host:port>` to point the CLI at a different daemon:
```bash
npm run cli -- --host localhost:7777 ls -a
```
## Agent state
Agent data lives at:
```
$PASEO_HOME/agents/{cwd-with-dashes}/{agent-id}.json
```
Find an agent by ID:
```bash
find $PASEO_HOME/agents -name "{agent-id}.json"
```
Find by content:
```bash
rg -l "some title text" $PASEO_HOME/agents/
```
## Provider session files
Get the session ID from the agent JSON (`persistence.sessionId`), then:
**Claude:**
```
~/.claude/projects/{cwd-with-dashes}/{session-id}.jsonl
```
**Codex:**
```
~/.codex/sessions/{YYYY}/{MM}/{DD}/rollout-{timestamp}-{session-id}.jsonl
```
## Testing with Playwright MCP
Use Playwright MCP connecting to Metro at `http://localhost:8081` for UI testing.
Do NOT use browser history (back/forward). Always navigate by clicking UI elements or using `browser_navigate` with the full URL — the app uses client-side routing and browser history breaks state.
## Expo troubleshooting
```bash
npx expo-doctor
```
Diagnoses version mismatches and native module issues.
## Typecheck
Always run typecheck after changes:
```bash
npm run typecheck
```