[STG-1045] Add logging at all 4 levels: agent.execute, agent.act/observe/extract, CLICK/HOVER/SCROLL, and CDP #1283
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pirate
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- Add SessionFileLogger class that writes to session-specific directories
- Read BROWSERBASE_CONFIG_DIR from env (defaults to ./.browserbase)
- Create session directory structure: {configDir}/sessions/{sessionId}/
- Create convenience symlink: {configDir}/sessions/latest
- Write to 5 separate log files:
- session.json (sanitized V3Options with secrets masked)
- agent_events.log (TASK level - agent.execute)
- stagehand_events.log (STEP level - act/observe/extract)
- understudy_events.log (ACTION level - CLICK/HOVER/etc)
- cdp_events.log (CDP MSG level)
- All filesystem operations are async, non-blocking, and fail silently
- Logs still also written to stdout via v3Logger for backwards compatibility
- Add .browserbase/ to .gitignore
- Update flowLoggingJourney example to show session log directory
Co-authored-by: Nick Sweeting <pirate@users.noreply.github.com>
…nt ids, cleanup code
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why
Clarify where the execution flow goes when stagehand runs by showing more detailed logs.
what changed
Adds a log line printed at the beginning and end of each layer's execution:
Log lines are written to
./.browserbase/sessions/{sessionId}/{agent,stagehand,understudy,cdp}.logat runtime, and can be followed in a single unified screen by doing:tail -f ./.browserbase/sessions/latest/*.logtest plan
Test by running
pnpm tsx packages/core/examples/flowLoggingJourney.ts & tail -f ./.browserbase/sessions/latest/*(make sureOPENAI_API_KEYis in env).