- tasks.md: all tasks checked; rounds 1-6 recorded with RED evidence,
measured leave-one-out and admission numbers, and the recorded design
deviations.
- spec.json: completed 2026-09-05.
- roadmap: corpus-seeded-mechanisms marked completed; the loop is closed
end to end (export -> improve admits under the holdout clause -> scan
searches -> reports name the mechanism).
Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01T7XD7x5KonMdmGRkp63EQG
Task 1.1 (Req 2.1-2.4). Spec approved by the maintainer in session.
- semantic/variants.py: Shape (language, sink trailing name, arity,
source positions and kinds, closed guard kind, mechanism id) with a
stable text-free key; derive_shape finds the labeled sink call site in
the vulnerable FileIR, traces argument identifiers through binds to a
fact source, a parameter or a container read, and classifies the guard
the fixed side added from the labeled function's added statements
against a closed set (none when unknown). No path, line or literal
enters a shape; a constant-only call teaches nothing.
Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01T7XD7x5KonMdmGRkp63EQG
Two engine specs drafted after the pair-corpus baseline, awaiting owner
approval before implementation:
- corpus-seeded-mechanisms: structural shapes derived from trusted pairs,
export, variant search merged with overlay flows, leave-one-out
measurement, and a closed `mechanisms` lever for the improve loop.
- reachability-flow-model: call graph over FunctionIR, reachability from
entry points to sinks, hunter client preferring HarnessX (task 4.1b).
Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01T7XD7x5KonMdmGRkp63EQG
