{"schema_version":"newruntime-agent-readable-v0.2","type":"raw_signal","stable_id":"signal:codex-hooks-close-the-type-error-loop","id":"nr-09cc7147-codex-hooks","slug":"codex-hooks-close-the-type-error-loop","title":"Codex Hooks Close the Type Error Loop","description":"Codex hooks make validation output an active part of the agent loop, so type errors and checks can be returned before the task drifts.","retrieval_nugget":"Codex hooks make validation output an active part of the agent loop, so type errors and checks can be returned before the task drifts. The most reliable agent loops feed strict validators back to the model quickly. Type errors are no longer only a human review artifact; they become structured runtime feedback. Novelty is notable; verification is source-linked.","observed_at":"2026-07-29","record_date":"2026-07-29","date_kind":"observed_at","why_it_matters":"The most reliable agent loops feed strict validators back to the model quickly. Type errors are no longer only a human review artifact; they become structured runtime feedback.","novelty":"notable","verification_level":"source-linked","signal_type":"tool","evidence_kind":"primary-source","status":"published","source_platform":"newsletter","source_record_id":"09cc7147-codex-hooks","source_url":"https://learn.chatgpt.com/docs/hooks","topics":["coding-agents","ai-infrastructure"],"entities":["OpenAI Codex","hooks","type checking"],"related_patterns":["verification-bandwidth-is-the-scarce-resource","goal-scoped-loops-replace-manual-continuation","harness-architecture-outlives-model-choice"],"source_urls":["https://learn.chatgpt.com/docs/hooks"],"import_batch":"newsletter-09cc7147-e5c3-42b7-8ced-84531f2b390d","routes":{"html":"https://newruntime.com/signals/codex-hooks-close-the-type-error-loop/","markdown":"https://newruntime.com/signals/codex-hooks-close-the-type-error-loop.md","json":"https://newruntime.com/signals/codex-hooks-close-the-type-error-loop.json"},"source_format":"editorial-inbox-sanitized-batch","next_reads":[{"type":"pattern","path":"/patterns/verification-bandwidth-is-the-scarce-resource/","reason":"Pattern connected to this observed signal.","url":"https://newruntime.com/patterns/verification-bandwidth-is-the-scarce-resource/","title":"Verification bandwidth is the scarce engineering resource","media_type":"text/html"},{"type":"pattern","path":"/patterns/goal-scoped-loops-replace-manual-continuation/","reason":"Pattern connected to this observed signal.","url":"https://newruntime.com/patterns/goal-scoped-loops-replace-manual-continuation/","title":"Goal-scoped loops replace manual continuation","media_type":"text/html"},{"type":"pattern","path":"/patterns/harness-architecture-outlives-model-choice/","reason":"Pattern connected to this observed signal.","url":"https://newruntime.com/patterns/harness-architecture-outlives-model-choice/","title":"Harness architecture outlives model choice","media_type":"text/html"},{"type":"topic","path":"/topics/ai-infrastructure/","reason":"Explore the ai infrastructure topic hub.","url":"https://newruntime.com/topics/ai-infrastructure/","title":"AI Infrastructure - New Runtime","media_type":"text/html"},{"type":"topic","path":"/topics/coding-agents/","reason":"Explore the coding agents topic hub.","url":"https://newruntime.com/topics/coding-agents/","title":"Coding agents - New Runtime","media_type":"text/html"}]}