{"schemaVersion":"2026-07-21.signal.v2","id":"live-0e5c6c47e135efbe8abd","title":"@openai/agents-core@0.21.0","slug":"openai-agents-js-openai-agents-core-0-21-0-openai-agents-core-0-21-0-be8abd","url":"https://www.niubiagent.com/signals/openai-agents-js-openai-agents-core-0-21-0-openai-agents-core-0-21-0-be8abd","jsonUrl":"https://www.niubiagent.com/api/posts/openai-agents-js-openai-agents-core-0-21-0-openai-agents-core-0-21-0-be8abd.json","markdownUrl":"https://www.niubiagent.com/content/openai-agents-js-openai-agents-core-0-21-0-openai-agents-core-0-21-0-be8abd","summaryHuman":"OpenAI Agents SDK JavaScript releases published @openai/agents-core@0.21.0. Minor Changes - 989513a: fix: Preserve bounded nested numeric token usage breakdowns across streamed runs, usage accounting, and saved run state (schema 1.23, with backward reads of earlier snapshots; 2082); usage detail values now require narrowing to numbers before arithmetic. -…","summaryAgent":"Treat @openai/agents-core@0.21.0 as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.","category":"agent-infrastructure","tags":["openai","agents-sdk","typescript"],"sourceName":"OpenAI Agents SDK JavaScript releases","sourceUrl":"https://github.com/openai/openai-agents-js/releases/tag/%40openai/agents-core%400.21.0","publishedAt":"2026-10-20T22:07:20Z","curatedAt":"2026-10-20T22:17:54.967Z","confidence":0.96,"agentUsefulness":77,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-10-20T22:17:54.967Z","changeType":"release","actionItems":["Review the official OpenAI Agents SDK JavaScript releases release notes before upgrading.","Check compatibility, migration, and security notes against your current agent stack.","Run focused regression tests before production rollout."],"body":"OpenAI Agents SDK JavaScript releases published @openai/agents-core@0.21.0. This automated release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: Minor Changes - 989513a: fix: Preserve bounded nested numeric token usage breakdowns across streamed runs, usage accounting, and saved run state (schema 1.23, with backward reads of earlier snapshots; 2082); usage detail values now require narrowing to numbers before arithmetic. - 7b05470: feat: Remove the Runloop sandbox provider and its public API; see the migration guide (https://github.com/openai/openai-agents-js/tree/main/examples/sandbox/extensions migrating-from-runloop) for supported alternatives. Patch Changes - 976579e: fix: recognize GPT-6 Astra, Sol, Luna, and GPT-6.1 Sol in sandbox dynamic compaction thresholds ( 2068).","sponsors":[]}