Core changes:
- Added claw-code/src/token_budget.py for projected prompt size, chat-framing overhead, output reserve, and soft/hard input limits.
- Wired preflight prompt-length validation and auto-compact/context collapse into claw-code/src/agent_runtime.py.
- Extended claw-code/src/compact.py so compaction reports usage back to the runtime.
- Added inspection surfaces in claw-code/src/agent_slash_commands.py and claw-code/src/main.py:
- /token-budget and /budget
- token-budget
- Hardened claw-code/src/tokenizer_runtime.py so arbitrary simple model names fall back cleanly instead of trying a slow Transformers
lookup.
- Exported the new helpers in claw-code/src/__init__.py.
Docs and tracking:
- Updated claw-code/PARITY_CHECKLIST.md to mark prompt-length validation, token-budget calculation, and auto-compact/context collapse as
done.
- Updated claw-code/README.md and claw-code/TESTING_GUIDE.md with the new commands and behavior.
Tests:
- Added claw-code/tests/test_token_budget.py.
- Updated claw-code/tests/test_agent_runtime.py, claw-code/tests/test_agent_slash_commands.py, claw-code/tests/test_main.py, and claw-code/
tests/test_agent_context_usage.py.
- Verified with:
- /data/fs201059/aa17626/miniconda3/bin/python3 -m compileall src tests
- /data/fs201059/aa17626/miniconda3/bin/python3 -m unittest -v tests.test_token_budget
tests.test_agent_runtime.AgentRuntimeTests.test_agent_rejects_prompt_before_backend_when_preflight_input_budget_is_exceeded
tests.test_agent_runtime.AgentRuntimeTests.test_agent_auto_compacts_context_before_next_model_call tests.test_agent_slash_commands
tests.test_main tests.test_compact tests.test_tokenizer_runtime tests.test_agent_context_usage
- Result: 71 tests, OK
Add What's New section with 16 new features, expanded key features table,
plugin system and nested delegation sections, budget/limit/context/structured
output CLI flag tables, zero-dependencies badge, and links to TESTING_GUIDE.md
and PARITY_CHECKLIST.md.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Abdelrahman Abdallah