{"id":"nr-agent-reliability-now-needs-checks-on-each-action-not-just-the-final-r-9a92f6","slug":"agent-reliability-now-needs-checks-on-each-action-not-just-the-final-r-9a92f6","type":"raw_signal","title":"Agent reliability now needs checks on each action, not just the final result","description":"Research on tool use finds that final task success can conceal invalid intermediate steps, while computer-use failures often come from page-loading races rather than model planning.","observed_at":"2026-10-31","record_date":"2026-10-31","date_kind":"observed_at","novelty":"notable","source_platform":"newruntime.com","topics":["tool-use"],"entities":["Vasundra Srinivasan","HTTP Archive","arXiv","Prefix Executability","BFCL-v3","ToolSandbox","tau^3-bench","Amir H. Rezaeian","Dan Roth","RedberryProducts"],"related_patterns":["verification-bandwidth-is-the-scarce-resource","harness-architecture-outlives-model-choice","goal-scoped-loops-replace-manual-continuation"],"source_url":"https://arxiv.org/abs/2610.39282","source_urls":["https://arxiv.org/abs/2610.39282","https://arxiv.org/abs/2610.40444","https://github.com/RedberryProducts/synapse/releases/tag/v0.3.0"],"why_it_matters":"Research on tool use finds that final task success can conceal invalid intermediate steps, while computer-use failures often come from page-loading races rather than model planning. Agent tooling is therefore adding step inspection and approvals, making executable, observed trajectories a practical reliability target.","verification_level":"source-linked","signal_type":"synthesis","synthesis_of":[{"slug":"paper-computer-use-agents-stale-clicks-come-mostly-74640b","title":"Paper: computer-use agents' stale clicks come mostly from page loading, not planning latency","url":"https://newruntime.com/posts/paper-computer-use-agents-stale-clicks-come-mostly-74640b/"},{"slug":"paper-proposes-prefix-executability-to-score-tool-using-117218","title":"Paper proposes prefix executability to score tool-using agents on whether every step could actually run","url":"https://newruntime.com/posts/paper-proposes-prefix-executability-to-score-tool-using-117218/"},{"slug":"redberry-s-open-source-synapse-dashboard-for-laravel-dedac6","title":"Redberry's open-source Synapse dashboard for Laravel AI SDK agents adds tool approvals and step inspection in v0.3.0","url":"https://newruntime.com/posts/redberry-s-open-source-synapse-dashboard-for-laravel-dedac6/"}],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"signal:agent-reliability-now-needs-checks-on-each-action-not-just-the-final-r-9a92f6","retrieval_nugget":"Research on tool use finds that final task success can conceal invalid intermediate steps, while computer-use failures often come from page-loading races rather than model planning.","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/signals/agent-reliability-now-needs-checks-on-each-action-not-just-the-final-r-9a92f6/","markdown":"https://newruntime.com/signals/agent-reliability-now-needs-checks-on-each-action-not-just-the-final-r-9a92f6.md","json":"https://newruntime.com/signals/agent-reliability-now-needs-checks-on-each-action-not-just-the-final-r-9a92f6.json"},"next_reads":[{"type":"topic","path":"/topics/tool-use/","url":"https://newruntime.com/topics/tool-use/","title":"Tool Use","reason":"Explore the tool-use topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/tool-use.md","json_url":"https://newruntime.com/topics/tool-use.json"},{"type":"collection","path":"/signals/","url":"https://newruntime.com/signals/","title":"Signals","reason":"Open the signals and the raw-signal archive.","media_type":"text/html","json_url":"https://newruntime.com/signals.json"},{"type":"collection","path":"/sources/","url":"https://newruntime.com/sources/","title":"Sources","reason":"See the original sources this archive cites.","media_type":"text/html"}]}