v0.26.0

googleapis/mcp-toolboxv0.26.0Jan 23, 2026by release-please[bot]

AI Summary

Feature-rich release adding Cloud SQL backup/restore tools, embedding model support, and MCP specification updates. Includes breaking changes to tool naming validation.

Key Highlights

Breaking: Tool naming validation now enforced
Breaking: CloudGDA tool description and parameter updates
Cloud SQL create and restore backup tools
Embedding model support in MCP handler
MCP specs version 2025-11-25 support

Breaking Changes

Validate tool naming
Update description and parameter name for cloudgda tool

New Features

user-agent-metadata flag
Add remaining flag to Toolbox server in MCP registry
Embedding model in MCP handler
BigQuery maximum rows configurable
Cloud SQL create backup tool
Cloud SQL restore backup tool
Combining multiple prebuilt configurations
MCP specs version 2025-11-25
valueFromParam support in Tool config

Full Release Notes

## [0.26.0](https://github.com/googleapis/genai-toolbox/compare/v0.25.0...v0.26.0) (2026-01-22)


### ⚠ BREAKING CHANGES

* Validate tool naming ([#2305](https://github.com/googleapis/genai-toolbox/issues/2305)) ([5054212](https://github.com/googleapis/genai-toolbox/commit/5054212fa43017207fe83275d27b9fbab96e8ab5))
* **tools/cloudgda:** Update description and parameter name for cloudgda tool ([#2288](https://github.com/googleapis/genai-toolbox/issues/2288)) ([6b02591](https://github.com/googleapis/genai-toolbox/commit/6b025917032394a66840488259db8ff2c3063016))

### Features

* Add new `user-agent-metadata` flag ([#2302](https://github.com/googleapis/genai-toolbox/issues/2302)) ([adc9589](https://github.com/googleapis/genai-toolbox/commit/adc9589766904d9e3cbe0a6399222f8d4bb9d0cc))
* Add remaining flag to Toolbox server in MCP registry ([#2272](https://github.com/googleapis/genai-toolbox/issues/2272)) ([5e0999e](https://github.com/googleapis/genai-toolbox/commit/5e0999ebf5cdd9046e96857738254b2e0561b6d2))
* **embeddingModel:** Add embedding model to MCP handler ([#2310](https://github.com/googleapis/genai-toolbox/issues/2310)) ([e4f60e5](https://github.com/googleapis/genai-toolbox/commit/e4f60e56335b755ef55b9553d3f40b31858ec8d9))
* **sources/bigquery:** Make maximum rows returned from queries configurable ([#2262](https://github.com/googleapis/genai-toolbox/issues/2262)) ([4abf0c3](https://github.com/googleapis/genai-toolbox/commit/4abf0c39e717d53b22cc61efb65e09928c598236))
* **prebuilt/cloud-sql:** Add create backup tool for Cloud SQL ([#2141](https://github.com/googleapis/genai-toolbox/issues/2141)) ([8e0fb03](https://github.com/googleapis/genai-toolbox/commit/8e0fb0348315a80f63cb47b3c7204869482448f4))
* **prebuilt/cloud-sql:** Add restore backup tool for Cloud SQL ([#2171](https://github.com/googleapis/genai-toolbox/issues/2171)) ([00c3e6d](https://github.com/googleapis/genai-toolbox/commit/00c3e6d8cba54e2ab6cb271c7e6b378895df53e1))
* Support combining multiple prebuilt configurations ([#2295](https://github.com/googleapis/genai-toolbox/issues/2295)) ([e535b37](https://github.com/googleapis/genai-toolbox/commit/e535b372ea81864d644a67135a1b07e4e519b4b4))
* Support MCP specs version 2025-11-25 ([#2303](https://github.com/googleapis/genai-toolbox/issues/2303)) ([4d23a3b](https://github.com/googleapis/genai-toolbox/commit/4d23a3bbf2797b1f7fe328aeb5789e778121da23))
* **tools:** Add `valueFromParam` support to Tool config ([#2333](https://github.com/googleapis/genai-toolbox/issues/2333)) ([15101b1](https://github.com/googleapis/genai-toolbox/commit/15101b1edbe2b85a4a5f9f819c23cf83138f4ee1))


### Bug Fixes

* **tools/cloudhealthcare:** Add check for client authorization before retrieving token string ([#2327](https://github.com/googleapis/genai-toolbox/issues/2327)) ([c25a233](https://github.com/googleapis/genai-toolbox/commit/c25a2330fea2ac382a398842c9e572e4e19bcb08))

| **OS/Architecture**                                                                                       | **Description**                                                                                                          | **SHA256 Hash**                                                     |
| --------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------- |
| [linux/amd64](https://storage.googleapis.com/genai-toolbox/v0.26.0/linux/amd64/toolbox)                   | For **Linux** systems running on **Intel/AMD 64-bit processors**.                                                        | eee872bd31ad3358c84f85262f72b86771f9a57f5e568ddb792ced3d23789f24    |
| [darwin/arm64](https://storage.googleapis.com/genai-toolbox/v0.26.0/darwin/arm64/toolbox)                 | For **macOS** systems running on **Apple Silicon** (M1, M2, M3, etc.) processors.                                        | 107c0171b35ad83e5498aceba7569ffd57c1c6533b1f9446966b59291b6c8807    |
| [darwin/amd64](https://storage.googleapis.com/genai-toolbox/v0.26.0/darwin/amd64/toolbox)                 | For **macOS** systems running on **Intel processors**.                                                                   | ff4523a92fd107bf1945fbe7bbe35ba2c351a4c70199a56c48bab73d88e1d95b    |
| [windows/amd64](https://storage.googleapis.com/genai-toolbox/v0.26.0/windows/amd64/toolbox.exe)           | For **Windows** systems running on **Intel/AMD 64-bit processors**.                                                      | f687822ad99183a942848630f9de27b26939c57f1f080838d8756339dbd3a402    |