Claude 03113312ad phase3: cJSON cross-language win verified + audited; robustness fix; case studies ...

phase3-cjson-002 (class 5+3): stack-buffer number parsing + strtod
round-trip replacing sscanf. +8.85% median, 95% CI [+7.5%, +10.0%] on
the C target, banked. 100% audit: byte-identical golden replay,
independent ASan+UBSan clean, 10k-input differential fuzz 0 divergences,
patch bounds/free-gating verified by eye.

- verdict: an infrastructure sanitizer-BUILD failure (missing runtime,
  broken toolchain) now caps the accept at needs-human-review and logs
  it, instead of crashing the verdict and losing a measured bench.
- results/phase3/: four public case studies (tokei class-5 wins; build
  flags + allocators; the comrak caught false-accept; the cJSON
  cross-language proof) + README. Compound-speedup claim stated as an
  approximation, not a measured figure (CIs don't multiply).
- .gitignore: cjson build-artifact dirs.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EcKPWQ3MQD4NdEHwar96u2

2026-07-11 23:06:59 +00:00

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