Files
stack/apps/coordinator/src
Jason Woltje d51b1bd749 feat(#151): Implement context compaction (TDD - GREEN phase)
Implement context compaction to free memory when agents reach 80% context usage.

Features:
- ContextCompactor class for handling compaction operations
- Generates summary prompt asking agent to summarize completed work
- Replaces conversation history with concise summary
- Measures context reduction before/after compaction
- Logs compaction metrics (tokens freed, reduction percentage)
- Integration with ContextMonitor via trigger_compaction() method

Implementation details:
- CompactionResult dataclass tracks before/after metrics
- Target: 40-50% context reduction when triggered at 80%
- Error handling for API failures
- Type-safe with mypy strict mode
- 100% test coverage for new code

Quality gates passed:
 Build (mypy): No type errors
 Lint (ruff): All checks passed
 Tests: 41/41 tests passing
 Coverage: 100% for context_compaction.py, 97% for context_monitor.py

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-02-01 20:30:28 -06:00
..
2026-02-01 18:00:19 -06:00
2026-02-01 17:55:48 -06:00