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Skill Loop Progress

Skill: repeatedly-apply-skill

Target: c-cpp-profi skill workspace

Total Passes: 7

Started: 2026-05-24T17:22:45Z

Status: COMPLETE - 7 of 7

Missions

  1. research-software: Inventory modern C/C++ quality, security, performance, ABI, build, docs, and analysis tools from source-first evidence.
  2. codebase-pattern-extraction: Study elite C/C++ projects cloned to /tmp and extract invariant engineering patterns.
  3. testing-fuzzing: Convert fuzzing, sanitizers, corpus, crash triage, and regression rules into enforceable C/C++ gates.
  4. extreme-software-optimization: Encode profile-first performance methodology for native code, with proof-before-change rules.
  5. multi-pass-bug-hunting: Add repeated audit-fix-rescan structure so agents cannot stop after a single scan.
  6. deadlock-finder-and-fixer: Add native concurrency, memory-model, lock-order, atomics, TSAN, and runtime triage requirements.
  7. simplify-and-refactor-code-isomorphically: Require behavior-preserving C/C++ refactors with ABI/API, layout, timing, and golden-output proofs.

Completed Passes

Pass 1 - research-software - 2026-05-24T17:31:30Z

  • Files changed: skill/c-cpp-systems-engineering/references/TOOLCHAIN-MATRIX.md, skill/c-cpp-systems-engineering/references/C-CPP-EXPERT-CANON.md, skill/c-cpp-systems-engineering/SKILL.md, skill/c-cpp-systems-engineering/references/QUALITY-GATES.md, workspace/ACCEPTANCE.md, workspace/FORWARD-TEST-REPORT.md
  • Changes: Added source-anchored tool families, canonical commands, missing-tool policy, internals/manpage map, expanded acceptance criteria, and links from SKILL.md.
  • Subagent: Nash produced a research-software matrix covering compilers, build systems, dependency managers, analyzers, sanitizers, fuzzers, coverage, ABI, perf, debugging, docs, include analysis, SBOM/security, portability, optional formal/safety/platform tooling, and standards/manpage canon.
  • Verdict: PRODUCTIVE
  • Commit: 457e93d

Pass 2 - codebase-pattern-extraction - 2026-05-24T17:42:30Z

  • Files changed: skill/c-cpp-systems-engineering/references/C-CPP-EXPERT-CANON.md, .skill-loop-progress.md
  • Changes: Expanded the elite-project pattern ledger from simdjson, mimalloc, SQLite, and curl; added a line-backed invariant section and non-generalization guardrails.
  • Subagent: Franklin extracted 15 invariants covering objective-evidence admission, minimized reproducers, sanitizers, fuzz lifecycle, scalar/reference oracles, compile-fail tests, portability matrixes, downstream install checks, ABI/API artifacts, docs-as-tests, protocol transcripts, invariant docs, allocator hardening contracts, benchmark methodology, and hot-path review hazards.
  • Verdict: PRODUCTIVE
  • Commit: a0bdc76

Pass 3 - testing-fuzzing - 2026-05-24T17:49:30Z

  • Files changed: skill/c-cpp-systems-engineering/references/TESTING-FUZZING.md, .skill-loop-progress.md
  • Changes: Added hard fuzz gates, C/C++ target discovery/scoring, sanitizer campaign matrix, harness gotchas, corpus/crash lifecycle, and fuzz/sanitizer evidence packet fields.
  • Subagent: Rawls confirmed additions and recommended explicit oracle/bounds, selected-target justification, fast-vs-sanitized modes, exec/s reporting, crash quarantine, stack-hash deduplication, and permanent regression promotion.
  • Verdict: PRODUCTIVE
  • Commit: 7be08c3

Pass 4 - extreme-software-optimization - 2026-05-24T18:02:30Z

  • Files changed: skill/c-cpp-systems-engineering/references/PERFORMANCE.md, skill/c-cpp-systems-engineering/references/QUALITY-GATES.md, skill/c-cpp-systems-engineering/references/C-CPP-EXPERT-CANON.md, .skill-loop-progress.md
  • Changes: Added hard performance admission rules, benchmark hygiene, baseline/profiling matrix, C/C++ hot-path review checks, optimized backend proof requirements, floating-point and UB cautions, isomorphism fields, and performance evidence packet fields.
  • Subagent: Arendt produced an extreme-software-optimization packet anchored in simdjson benchmarks/backend dispatch, mimalloc benchmark cautions, and curl hot-path review rules.
  • Verdict: PRODUCTIVE
  • Commit: c89ae29

Pass 5 - multi-pass-bug-hunting - 2026-05-24T18:10:30Z

  • Files changed: skill/c-cpp-systems-engineering/SKILL.md, skill/c-cpp-systems-engineering/references/QUALITY-GATES.md, skill/c-cpp-systems-engineering/references/C-CPP-EXPERT-CANON.md, .skill-loop-progress.md
  • Changes: Added enforced audit-fix-rescan loop, fresh-eyes reread requirements, scanner order, finding classification, C/C++ bug class coverage, convergence criteria, anti-patterns, and multi-pass evidence fields.
  • Subagent: Ptolemy produced a read-only multi-pass-bug-hunting packet with scanner order, finding classes, evidence fields, stop conditions, and anti-patterns anchored in the multi-pass skill and elite project evidence.
  • Verdict: PRODUCTIVE
  • Commit: cc6cae6

Pass 6 - deadlock-finder-and-fixer - 2026-05-24T18:18:30Z

  • Files changed: skill/c-cpp-systems-engineering/SKILL.md, skill/c-cpp-systems-engineering/references/QUALITY-GATES.md, skill/c-cpp-systems-engineering/references/C-CPP-EXPERT-CANON.md, skill/c-cpp-systems-engineering/references/CONCURRENCY-DEADLOCKS.md, skill/c-cpp-systems-engineering/scripts/cpp_gate_report.sh, skill/c-cpp-systems-engineering/scripts/cpp_gate_plan.sh, .skill-loop-progress.md
  • Changes: Added dedicated C/C++ concurrency/deadlock reference with lock-order graphs, concrete interleaving proofs, condition-variable rules, atomic memory-order evidence, thread lifecycle/TLS shutdown, signal/fork/loader/allocator/callback reentrancy, validation matrix, dynamic gates, false-positive rules, and evidence packet/report fields.
  • Subagent: Boole produced a read-only deadlock-finder-and-fixer packet anchored in SQLite lock ordering, curl callback/thread rules, mimalloc atomics/loader guards, and the deadlock skill's concrete-interleaving requirements.
  • Verdict: PRODUCTIVE
  • Commit: 0968596

Pass 7 - simplify-and-refactor-code-isomorphically - 2026-05-24T18:28:30Z

  • Files changed: skill/c-cpp-systems-engineering/SKILL.md, skill/c-cpp-systems-engineering/references/QUALITY-GATES.md, skill/c-cpp-systems-engineering/references/C-CPP-EXPERT-CANON.md, skill/c-cpp-systems-engineering/references/REFACTOR-ISOMORPHISM.md, skill/c-cpp-systems-engineering/scripts/cpp_gate_report.sh, skill/c-cpp-systems-engineering/scripts/cpp_gate_plan.sh, .skill-loop-progress.md
  • Changes: Added dedicated behavior-preserving C/C++ refactor reference with baseline-before-edit, duplication/callsite census, opportunity score, one-lever commits, API/ABI/layout/vtable/name-mangling checks, RAII/exception/ownership/template/build-system axes, evidence card, rejection rules, and stop conditions.
  • Subagent: Hooke produced a read-only simplify-and-refactor-code-isomorphically packet with census requirements, opportunity matrix, C/C++ isomorphism axes, evidence packet, rejection rules, and stop conditions.
  • Verdict: PRODUCTIVE
  • Commit: 5db96bf