# Todo 21 EventAgent Context Summary Plan

**Status:** done

## Goal

Make EventAgent configuration part of tool-parameter generation and send a combined EventAgent result summary into the ChatAgent input queue.

## Why

The UI and contracts already expose EventAgent `system_prompt` and `extra_body`, but parameter generation currently only receives event/history. Also, individual tool replies are provider-compatible, but ChatAgent should get a concise aggregate result from EventAgent after all tools in the current event round finish.

## Scope

- Add an EventAgent execution context containing history, system prompt, and extra body.
- Pass EventAgent config from `DebugRuntime` into `EventAgentRequest`.
- Keep individual `tool` replies for Chat Completions compatibility.
- Add one aggregate `user` message after tool replies so the next ChatAgent round sees the combined EventAgent result.

## Verification

- EventAgent tests prove custom resolvers receive `system_prompt` and `extra_body`.
- Runtime tests prove the second ChatAgent round contains tool replies followed by the aggregate summary.
- `uv run pytest` passed: 50 tests, 1 existing Starlette deprecation warning.

## Result

- Added `ToolExecutionContext` for EventAgent parameter generation.
- Passed EventAgent `system_prompt` and `extra_body` from `DebugRuntime` into EventAgent requests.
- Kept individual provider-compatible `tool` replies and added one aggregate `EventAgent results` user message for the next ChatAgent round.