{"type":"post","id":"ibm-researchers-propose-jevact-a-runtime-decision-gate-d734b4","slug":"ibm-researchers-propose-jevact-a-runtime-decision-gate-d734b4","title":"IBM researchers propose JevAct, a runtime decision gate that checks tool-using agents' actions against compiled policies before execution","description":"A new paper proposes JevAct, a runtime gate that evaluates selected tool actions from an LLM agent before they execute.","retrieval_nugget":"A new paper proposes JevAct, a runtime gate that evaluates selected tool actions from an LLM agent before they execute. For AI builders, the important architectural claim is that policy and task-completion checks can reside in an independent verification layer rather than only in prompts, model parameters, or tool code.","published_at":"2026-10-31","updated_at":"2026-10-31","record_date":"2026-10-31","date_kind":"published_at","topics":["agent-security","sandbox"],"entities":["IBM","JevAct","tau2-bench","BFCL"],"related_patterns":["agent-security-moves-to-runtime-boundaries","verification-bandwidth-is-the-scarce-resource"],"novelty_label":"new_fact","what_changed":"IBM researchers introduce JevAct, a compiled-policy runtime gate for tool-using agents; evaluations report reliability gains across 11 agents and benchmarks, extending prior coverage of agent governance and tool-call controls.","prior_refs":["memory:a3a30142-0844-874f-ac3b-1229a79bb7a6","memory:ec8f1854-516f-8d27-a64b-346108c9384d"],"source_url":"https://arxiv.org/abs/2610.38620","source_urls":["https://arxiv.org/abs/2610.38620"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:ibm-researchers-propose-jevact-a-runtime-decision-gate-d734b4","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/ibm-researchers-propose-jevact-a-runtime-decision-gate-d734b4/","markdown":"https://newruntime.com/posts/ibm-researchers-propose-jevact-a-runtime-decision-gate-d734b4.md","json":"https://newruntime.com/posts/ibm-researchers-propose-jevact-a-runtime-decision-gate-d734b4.json"},"next_reads":[{"type":"topic","path":"/topics/agent-security/","url":"https://newruntime.com/topics/agent-security/","title":"Agent Security","reason":"Explore the agent-security topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/agent-security.md","json_url":"https://newruntime.com/topics/agent-security.json"},{"type":"topic","path":"/topics/sandbox/","url":"https://newruntime.com/topics/sandbox/","title":"Sandbox","reason":"Explore the sandbox topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/sandbox.md","json_url":"https://newruntime.com/topics/sandbox.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}