# Phase 04 Plan 02: Matrix Context Commands Summary

## Outcome

Added Matrix context management for `!save`, `!load`, `!reset`, and `!context`, plus
pending-state interception in the Matrix bot and prototype-state tracking for saved
sessions, current session, and last token usage.

## Commits

- `2720ee2` `feat(04-02): extend prototype and matrix pending state`
- `b52fdc4` `feat(04-02): add matrix context management commands`

## Verification

- `pytest tests/platform/test_prototype_state.py -q`
- `pytest tests/adapter/matrix/test_context_commands.py tests/platform/test_prototype_state.py -q`
- `pytest tests/adapter/matrix/test_dispatcher.py tests/adapter/matrix/test_confirm.py -q`

## Deviations from Plan

### Auto-fixed Issues

1. `[Rule 2 - Critical functionality]` Sanitized save names before using them in save/load prompts.
   This rejects names outside `[A-Za-z0-9_-]` and prevents path-like input from flowing into `/workspace/contexts/{name}.md`.

2. `[Rule 2 - Critical functionality]` Cleared the active current-session marker on reset.
   Without this, `!context` could report a stale loaded session after `!reset`.

## Files Changed

- `sdk/prototype_state.py`
- `adapter/matrix/store.py`
- `adapter/matrix/handlers/__init__.py`
- `adapter/matrix/handlers/context_commands.py`
- `adapter/matrix/bot.py`
- `tests/adapter/matrix/test_context_commands.py`
- `tests/platform/test_prototype_state.py`

## Self-Check: PASSED
