agent-lab/docs/plans/todo-34-event-agent-history-boundary.md

Todo 34: EventAgent History Boundary

Status

done

Goal

Ensure EventAgent receives only conversational user and assistant messages, not the full ChatAgent prompt/context list or EventAgent/tool internal replies.

Plan

1. Add a runtime helper that derives EventAgent history from the current conversation.
2. Use it in both direct runtime and WebSocket session turn paths before enqueueing EventAgentRequest.
3. Add regression tests proving system prompts, pre-messages with system role, and internal EventAgent replies are excluded from EventAgent history and audit.

Verification

• uv run pytest tests/test_debug_runtime.py -q passes (21 passed).
• node --check src/agent_lab/presentation/static/app.js passes.
• uv run pytest passes (70 passed, one existing Starlette deprecation warning).
• git diff --check passes.