Add JIT compiler development skill to cpython-skills plugin#7
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Add a new 'jit' skill covering CPython's experimental JIT compiler development workflow. The skill provides guidance on: - LLVM 21 toolchain setup for stencil generation - JIT configure flags (--enable-experimental-jit options) - The copy-and-patch compilation pipeline (template.c → jit_stencils.h) - Key files in Tools/jit/ and Python/jit.c - Stencil regeneration after bytecode changes - Debugging JIT issues (PYTHON_JIT=0 vs PYTHON_JIT=1) - Supported target platforms and object formats - Key concepts: stencils, holes, preserve_none, musttail, GOT Also updates the dev skill to reference the jit skill as a loadable specialized skill, and updates plugin.json and README.md. https://claude.ai/code/session_01G1etZcjcrhEVk6rnLhJKZP
…g env vars to JIT skill Expand the JIT skill with additional details discovered during research: - Python/optimizer_analysis.c and Python/perf_jit_trampoline.c in key files - Lib/test/test_optimizer.py as the relevant test file - PYTHON_OPT_DEBUG environment variable table for debug tracing https://claude.ai/code/session_01G1etZcjcrhEVk6rnLhJKZP
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Summary
This PR adds a new
jitskill to the cpython-skills plugin, providing comprehensive documentation and guidance for working on CPython's experimental JIT compiler.Key Changes
New skill file:
plugins/cpython-skills/skills/jit/SKILL.md- A detailed guide covering:--enable-experimental-jit(full JIT, interpreter-only, disabled variants)Tools/jit/) and runtime components (Python/jit.c, etc.)Updated plugin configuration:
plugins/cpython-skills/plugin.json- Registered the newjitskillUpdated README:
plugins/cpython-skills/README.md- Added documentation for the new skill and updated skill count from four to fiveUpdated dev skill description:
plugins/cpython-skills/skills/dev/SKILL.md- Updated to reference the new jit skill in the meta-skill coordination listImplementation Details
The JIT skill documentation is comprehensive and practical, covering the full development workflow from environment setup through debugging. It includes:
https://claude.ai/code/session_01G1etZcjcrhEVk6rnLhJKZP