feat(workspace-probe): @metaharness/workspace-probe — eval + Darwin-Mode bridge for workspace-lens (ADR-239)#131
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…ode bridge for workspace-lens (ADR-239)
A thin, pure companion to @metaharness/workspace-lens (ADR-238) that turns Jacobian-Lens interpretability
receipts into evaluation signal:
- workspaceProbeScore(receipts, {driftThreshold}) → { n, score=cleanFraction, meanDrift, flagRate,
criticalRate } — a flywheel-consumable `workspace_probe` surface: the fraction of decisions whose
workspace was clean (no critical trigger AND drift below threshold). Empty set → 0 (nothing witnessed
→ no credit).
- gradeMutationByWorkspace(baseline, mutant, opts) → { keep, reasons, baseline, mutant } — Darwin-Mode
mutation evidence: a VETO that rejects a mutation which raises the critical-trigger rate, destabilizes
the workspace (mean drift up beyond tolerance), or drops the clean fraction — even if final answers
improved ("final answer up, workspace grip down" = structurally brittle). Pairs with the gold/answer
gate (keep only if BOTH pass); never weakens it. meetsPromotionRule untouched.
Depends only on the workspace-lens types; deterministic; $0. Logic was developed + validated in
isolation against the published @metaharness/workspace-lens@0.1.0, then re-homed with a local workspace
dep. 9 synthetic tests; tsc clean; healthcheck 8/8. Wired into build-ordered phase-2 (after workspace-lens)
+ the version-coherence allowlist; ADR-239. (The lockfile also gains the workspace-lens entry that #129
did not add.)
Co-Authored-By: claude-flow <ruv@ruv.net>
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What / why
A thin, pure companion package to
@metaharness/workspace-lens(ADR-238, #129) — the application layer that turns Jacobian-Lens interpretability receipts into evaluation signal:workspaceProbeScore(receipts, {driftThreshold})→{ n, score = cleanFraction, meanDrift, flagRate, criticalRate }— a flywheel-consumableworkspace_probesurface: the fraction of decisions whose workspace was clean (no critical trigger AND drift below threshold). Empty set →0(nothing witnessed → no credit).gradeMutationByWorkspace(baseline, mutant)→{ keep, reasons, baseline, mutant }— Darwin-Mode mutation evidence: a veto that rejects a mutation which raises the critical-trigger rate, destabilizes the workspace (mean drift up beyond tolerance), or drops the clean fraction — even if final answers improved ("final answer up, workspace grip down" = structurally brittle). It pairs with the gold/answer gate (keep only if both pass) and never weakens it;meetsPromotionRuleis untouched.Depends only on the workspace-lens types; deterministic;
$0.Validation
@metaharness/workspace-lens@0.1.0, then re-homed with a local workspace dep.tscclean against the local workspace-lens; healthcheck 8/8.build-orderedphase-2 (builds afterworkspace-lensin phase-1) + the version-coherence allowlist; ADR-239.@metaharness/workspace-lensworkspace entry that feat(workspace-lens): @metaharness/workspace-lens — Jacobian-Lens interpretability primitive (ADR-238) #129 didn't add.🤖 Generated with claude-flow