Add --matrix-spec to scripts/run-benchmark-campaign.py. Deterministically expand candidate revision/binary/build, capability profile, transport, scenario, frontier size, exact cap, and repetition into immutable cells; archive both the source spec and expanded plan before execution.
Include structured parameters and benchmark-incremental-speed.py SHA-256 in cell identity evidence. Keep exact command arrays, binary SHA-256 validation, atomic completion, retained attempts, disk guards, and report/manifests on the existing campaign path.
Teach frontier_coverage_gate() to accept deliberately configured low-cap cells only when they publish containment/full, report frontier_too_large, include affected_paths_truncated=true, and preserve the canonical graph.
Validated with 43 Python tests plus 15 subtests and Ruff. Real -O2 smoke cells proved one-attempt completion/resume and configured cap=4 versus five affected Go files produced incremental_containment with canonical equality and cleanup.
Signed-off-by: Andrew Hundt <ATHundt@gmail.com>
Andrew Hundt
a2aa1250c6