# Todo 47.2 Plugin Token and Compatibility Boundaries Plan

**Status:** done

## Result

Closed negation and malformed numeric side-effect gaps, canonicalized integral floats, preserved fallback provenance, restored standard RFC3339 behavior, and kept positional definition constructors compatible.

## Goal

Close the remaining quality-gate findings without expanding plugin behavior or generic orchestration scope.

## Scope

- Reject `不静音`, `不用静音`, `无需静音`, `no mute`, and equivalent negations as substantive invalid input with no LLM fallback or port call.
- Reject decimal/grouped numeric phrases such as `40.5`, `10.5`, and `1,000` without truncating them into valid integers.
- Canonicalize JSON Schema integral floats (`2.0`, `40.0`) to Python `int` for volume, search, and schedule numeric fields before ports/cache keys.
- Preserve `used_fallback=True` when a post-fallback normalizer fails.
- Use the standard `jsonschema` RFC3339 `date-time` checker; keep only the custom `iana-timezone` checker.
- Move newly added dataclass fields to the end so existing positional `EventDefinition` and `ToolDefinition` construction keeps its historical meaning.

## Files

- Modify: `src/agent_lab/application/events/models.py`
- Modify: `src/agent_lab/application/events/kernel.py`
- Modify: `src/agent_lab/application/events/registry.py`
- Modify: `src/agent_lab/application/events/builtin_plugins.py`
- Modify: `src/agent_lab/application/tools.py`
- Modify: `tests/test_event_kernel.py`
- Modify: `tests/test_builtin_event_plugins.py`

## Requirement Execution Loop

### Plan

1. Add RED tests for all named negation and malformed numeric phrases; assert zero fallback and zero port calls.
2. Add RED canonical-number tests proving ports/cache treat integral floats as integers and equivalent values share cache keys.
3. Add RED post-fallback normalizer failure and positional-constructor compatibility tests.
4. Add RED lowercase `t`/`z` RFC3339 acceptance while retaining invalid-calendar rejection.
5. Implement the smallest parser/normalizer/kernel/dataclass changes and run final bounded reviews.

### Observe / Update

Close Todo 47 only when no Critical/Important findings remain and all external side effects are protected by canonical validated arguments.

## Verification

- `UV_CACHE_DIR=.uv-cache uv run pytest tests/test_event_kernel.py tests/test_builtin_event_plugins.py -q`
- `UV_CACHE_DIR=.uv-cache uv run pytest`
- `git diff --check`