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Claude 328aafae77 Bootstrap hotpath from engineering spec v0.1

Commit the spec and scaffold the system it describes:

- SPEC.md: the full v0.1 engineering spec
- crates/: trust-layer Rust workspace, unit-tested
  - bench-runner: interleaved ABAB scheduling with discarded warm-ups,
    deterministic bootstrap CIs over the ratio of medians,
    CI-lower-bound accept rule, env fingerprinting, and a CLI with
    compare + A/A self-test modes (A/A verified passing end-to-end)
  - diff-test: gate outcome model, sha256 corpus pin verifier that
    refuses on mismatch, per-target equivalence policy parser
    (byte-identical default, explicit fp-tolerance opt-in)
  - ledger: append-only SQLite attempt schema with UPDATE/DELETE
    refused by triggers, anti-double-attempt query
  - report: cores-saved and dollars/yr ROI math over speedup CIs,
    pricing.toml inputs
- playbook/: classes 1-7 with preconditions, procedure, verification
  notes, and known failure modes per class
- agent/: Python package skeleton — six-tool contract and prompting
  spine, harness IPC deferred to Phase 1
- config/: accept.toml (2% threshold, 30 runs/side), pricing.toml
- targets/, corpora/, results/calibration/: layout and policy docs

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

2026-07-06 18:34:51 +00:00

README.md

Bootstrap hotpath from engineering spec v0.1

2026-07-06 18:34:51 +00:00

README.md

targets/

One directory per optimization target. This is the only agent-writable path in the repository (SPEC §10); everything else is trust layer.

Layout

targets/<name>/
  target.toml         # upstream repo URL, pinned commit, build & bench commands
  equivalence.toml    # optional; absent = byte-identical required (SPEC §3.2)
  workspace/          # agent's checkout — patches land here via harness git-apply

Selection criteria (SPEC §6): CPU-bound (>70% user time), meaningful test suite, scriptable workload, permissive license, active but not hyper-optimized, builds cleanly in a container. Good hunting: codecs, parsers, serializers, image processing, compression, static-site generators, linters.

equivalence.toml

Default (no file) is byte-identical outputs. FP-producing targets may declare an explicit tolerance policy:

mode = "fp-tolerance"
abs = 1e-9    # max absolute difference per numeric value
rel = 1e-6    # max relative difference per numeric value

Declaring a tolerance covers output comparison only; FP flag changes still route to needs-human-review (SPEC §8).