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rig-v0.37.1

cheshire-cat-ai/corerig-v0.37.1Jun 2, 2026by github-actions[bot]

AI Summary

This release introduces schema improvements for tools using schemars, adds streaming metadata support for Gemini, introduces document citations for Anthropic, and fixes several streaming and dependency issues.

Key Highlights

  • Replaced hand-rolled schema with schemars in #[rig_tool]
  • Exposed streaming response metadata for Gemini
  • Added support for document citations in Anthropic
  • Fixed ChatGPT response handling and streaming function-call parsing

New Features

  • Streaming response metadata exposure
  • Document citation support for Anthropic
  • Schema standardization using schemars
  • Function-call argument delta parsing fixes

Full Release Notes

### Added

- *(rig-derive)* replace hand-rolled schema with schemars in #[rig_tool] ([#1576](https://github.com/0xPlaygrounds/rig/pull/1576)) (by @tomasz-feliksik)
- *(gemini)* expose streaming response metadata ([#1790](https://github.com/0xPlaygrounds/rig/pull/1790)) (by @mateobelanger)
- *(anthropic)* support document citations ([#1778](https://github.com/0xPlaygrounds/rig/pull/1778)) (by @temrjan)

### Fixed

- *(chatgpt)* Handle ChatGPT response.completed events without output field ([#1825](https://github.com/0xPlaygrounds/rig/pull/1825)) (by @geraschenko)
- *(rig-gemini-grpc)* populate FunctionDeclaration.parameters from ToolDefinition ([#1763](https://github.com/0xPlaygrounds/rig/pull/1763)) (by @abhicris)
- fix sqlite threshold and null tool call streaming ([#1786](https://github.com/0xPlaygrounds/rig/pull/1786)) (by @gold-silver-copper) - #1786

### Other

- *(deps)* bump mongodb from 3.6.0 to 3.7.0 ([#1848](https://github.com/0xPlaygrounds/rig/pull/1848)) (by @dependabot[bot])
- *(deps)* bump zerocopy from 0.8.48 to 0.8.50 ([#1847](https://github.com/0xPlaygrounds/rig/pull/1847)) (by @dependabot[bot])
- *(deps)* bump google-cloud-aiplatform-v1 from 1.10.0 to 1.11.0 ([#1846](https://github.com/0xPlaygrounds/rig/pull/1846)) (by @dependabot[bot])
- *(deps)* bump serde_json from 1.0.149 to 1.0.150 ([#1845](https://github.com/0xPlaygrounds/rig/pull/1845)) (by @dependabot[bot])
- *(deps)* bump tonic from 0.14.5 to 0.14.6 ([#1844](https://github.com/0xPlaygrounds/rig/pull/1844)) (by @dependabot[bot])
- Fix parsing of streamed function-call argument deltas ([#1828](https://github.com/0xPlaygrounds/rig/pull/1828)) (by @geraschenko) - #1828
- *(deps)* port dependency bumps and Rust 1.91 ([#1842](https://github.com/0xPlaygrounds/rig/pull/1842)) (by @gold-silver-copper)
- *(deps)* bump quick-xml from 0.39.4 to 0.40.1 ([#1818](https://github.com/0xPlaygrounds/rig/pull/1818)) (by @dependabot[bot])
- *(deps)* bump google-cloud-auth from 1.9.0 to 1.10.0 ([#1817](https://github.com/0xPlaygrounds/rig/pull/1817)) (by @dependabot[bot])
- Stabilize MongoDB vector search test ([#1841](https://github.com/0xPlaygrounds/rig/pull/1841)) (by @gold-silver-copper) - #1841
- fix VT Code line grammar in README ([#1824](https://github.com/0xPlaygrounds/rig/pull/1824)) (by @Shaurya-Sethi) - #1824
- [codex] Validate model tool calls ([#1823](https://github.com/0xPlaygrounds/rig/pull/1823)) (by @gold-silver-copper) - #1823
- [codex] apply Anthropic cache control to tools ([#1815](https://github.com/0xPlaygrounds/rig/pull/1815)) (by @gold-silver-copper) - #1815
- *(deps)* bump tokio-tungstenite from 0.23.1 to 0.28.0 ([#1784](https://github.com/0xPlaygrounds/rig/pull/1784)) (by @dependabot[bot])
- *(deps)* bump rmcp from 1.6.0 to 1.7.0 ([#1783](https://github.com/0xPlaygrounds/rig/pull/1783)) (by @dependabot[bot])
- *(deps)* bump tokio from 1.52.1 to 1.52.3 ([#1782](https://github.com/0xPlaygrounds/rig/pull/1782)) (by @dependabot[bot])
- Expose per-completion-call usage in agent responses ([#1787](https://github.com/0xPlaygrounds/rig/pull/1787)) (by @gold-silver-copper) - #1787
- *(gemini)* add streaming metadata cassettes ([#1777](https://github.com/0xPlaygrounds/rig/pull/1777)) (by @gold-silver-copper)
- Add replayable provider cassette tests ([#1769](https://github.com/0xPlaygrounds/rig/pull/1769)) (by @gold-silver-copper) - #1769

### Contributors

* @dependabot[bot]
* @geraschenko
* @tomasz-feliksik
* @gold-silver-copper
* @abhicris
* @Shaurya-Sethi
* @mateobelanger
* @temrjan