Root cause: CompressionCache.compute_frozen_count() stopped at the first
tool_result not in its cache, capping frozen_message_count at 2. Tool
results excluded by content_router (Read/Glob) or skipped (ratio too
high) never entered the cache, so every subsequent message was eligible
for recompression — causing 192 cache busts per session.
Four fixes:
1. Add _stable_hashes set to CompressionCache so excluded/skipped
tool_results don't block the frozen count walk
2. Fix _estimate_message_tokens to count tool_result content and
tool_use input fields (were counted as 0 tokens in Anthropic format)
3. Fix streaming handler to include assistant response and
original_messages in prefix tracker updates (parity with non-streaming)
4. TTL-aware batch recompression: defer first-time compressions within
the 5-min cache TTL window, batching them at the boundary to trade
many small busts for one
- headroom wrap claude is the simplest way to start up claude
- It will also install rtk-ai locally
- rtk-ai is a cli wrapper that can save ~90% tokens for CLI calls made by Claude Code
Features:
- Add field-level learning to TOIN from retrieved items
- CompressionStore now passes retrieved_items to TOIN for learning
- Add FieldSemantics class for tracking field usage patterns
Test improvements:
- Add TestCacheOptimizerInvocation to verify optimizer is actually invoked
- Add TestSemanticCacheIntegration to verify cache hit returns without API call
- Add TestSessionStatsTracking to verify session stats are tracked
- Add TestEndToEndTOINIntegration for full CCR cycle with TOIN
- Add critical field_semantics assertions to catch feedback loop bugs
Fixes:
- Remove unused imports and variables (ruff linting)
Bump version to 0.2.11
