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Review regressions before expanding the test." ], "measure": "Successful attacks missed, legitimate actions blocked, detection delay, and review cost.", "decision": "Keep the change only if it meets your preselected quality and latency limits and improves the metric you care about after setup and operating costs. Otherwise retain the baseline. This is an exploration plan, not a validated recommendation." }, "builder_review": null, "arxiv_id": "2610.01349", "title": "PACE: Provenance-Aware Capability Enforcement for Tool-Using LLM Agents", "summary": "PACE replaces admission-time vetting of tool metadata, retrieved pages, memory, and skills with per-call mediation that checks each tool call's provenance, schema-defined effects, and authority immediately before execution. 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