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Implemented the next parity slice: prompt-budget preflight and context collapse.

Browse Source 
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
This commit is contained in:
Abdelrahman Abdallah
2026-04-11 01:38:19 +02:00
parent aacf0a212a
commit b5e5824a56
23 changed files with 2641 additions and 10 deletions
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tests/test_agent_prompting.py
+17
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@@ -226,6 +226,23 @@ class AgentPromptingTests(unittest.TestCase):
prompt = render_system_prompt(parts)
self.assertIn('# Config', prompt)
def test_prompt_builder_mentions_lsp_when_runtime_is_loaded(self) -> None:
with tempfile.TemporaryDirectory() as tmp_dir:
workspace = Path(tmp_dir)
(workspace / 'sample.py').write_text('def helper(value):\n return value * 2\n', encoding='utf-8')
runtime_config = AgentRuntimeConfig(cwd=workspace)
model_config = ModelConfig(model='Qwen/Qwen3-Coder-30B-A3B-Instruct')
prompt_context = build_prompt_context(runtime_config, model_config)
parts = build_system_prompt_parts(
prompt_context=prompt_context,
runtime_config=runtime_config,
tools=default_tool_registry(),
)
prompt = render_system_prompt(parts)
self.assertIn('# LSP', prompt)
self.assertIn('Use the LSP tool', prompt)
def test_prompt_builder_mentions_tasks_when_runtime_is_loaded(self) -> None:
with tempfile.TemporaryDirectory() as tmp_dir:
workspace = Path(tmp_dir)