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# Document the built-in agents

2026-02-04 · v1.1.51

## Improvements

- **Core:** Revert change that caused headers to be double merged if provider was authenticated in multiple places
- **Core:** Prevent double-prefixing of Bedrock cross-region inference models ([@sergical](https://github.com/sergical))
- **Core:** Prioritize OPENCODE_CONFIG_DIR for AGENTS.md ([@lgladysz](https://github.com/lgladysz))
- **Terminal:** Restore direct OSC52 support
- **Desktop:** Tighten up session padding-top for mobile ([@DNGriffin](https://github.com/DNGriffin))

Released in [v1.1.51](https://github.com/anomalyco/opencode/releases/tag/v1.1.51)

Newer: [Enable Claude 3.5 Sonnet (new) model support](https://opencode.ai/changelog/v1.1.52) (v1.1.52)

Older: [Prevent memory leaks from AbortController closures](https://opencode.ai/changelog/v1.1.50) (v1.1.50)

[All updates](https://opencode.ai/changelog)

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