What googleapis/mcp-toolbox shipped
Written by FoxPlug from public releases; not affiliated with Mcp-toolbox. An automatic summary of the public release, pull request and commit data of github.com/googleapis/mcp-toolbox. Mcp-toolbox did not write it and does not use or endorse FoxPlug. Every line links to the public change it describes.
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Week of September 21, 2026
What shipped
- Released v1.13.1 with a revert of the sources connection feature to fix issues in v1.13.0. Release
- Reverted the source connection on first use feature that was breaking oauth2 token sources. Pull request #4137
- Released v1.13.0 with support for deferring source connections until first use and a bigtable prebuilt config. Release
- File resources now accept skill:// URIs so agent skills can declare their resource files. Pull request #3989
- Looker tool now exposes
value_formatandvalue_format_namein field metadata for display formatting. Pull request #4094 - Conversational analytics tool now returns all data agents with support for manual paging instead of truncating results. Pull request #4066
- Fixed parseEnv to consistently substitute environment variables in YAML even when preceded by comment blocks. Pull request #4039
- Added .py to the allowed list of file type resources. Pull request #4121
- Added end-to-end evaluations for cloud-sql-postgres-observability prebuilt config covering all observability tools. Pull request #4020
- Removed non-deterministic assertions from Looker tests to improve test reliability. Pull request #4129
Why it matters
v1.13.1 addresses a critical regression in source connection handling that was breaking oauth2 sources. The fixes and improvements in the week enable better resource handling for agent skills, expanded tool capabilities for analytics and Looker, and broader test coverage for cloud-sql-postgres observability.
Changelog entry
- v1.13.1: Revert "feat(sources): connect sources on first use" to unbreak oauth2 token sources Release
- v1.13.0: Support --defer-source-connect flag for connecting sources on first use Release
- v1.13.0: Add prebuilt config for bigtable Release
- File resources now accept skill:// URIs for agent skill resource declarations Pull request #3989
- Looker tool exposes
value_formatandvalue_format_namein field metadata Pull request #4094 - Conversational analytics tool returns all data agents with optional
page_sizeandpage_tokenparameters Pull request #4066 - Fix parseEnv to consistently handle environment variable substitution with YAML comments Pull request #4039
- Add .py to allowed file type resource extensions Pull request #4121
- Add end-to-end evaluations for cloud-sql-postgres-observability covering
get_system_metricsandget_query_metricsPull request #4020 - Expand cloud-sql-postgres evaluations with health bloat and extension tuning scenarios Pull request #4022
v1.13.1 shipped to fix source connection issues. v1.13.0 added defer-connect, bigtable config, and expanded analytics/Looker tools. File resources now support skill:// URIs.
This week we shipped v1.13.1 to address source connection issues and v1.13.0 with new capabilities including deferred source connection, bigtable prebuilt config, and expanded tool features. File resources now accept skill:// URIs for agent skills, Looker tools expose additional field metadata, and analytics tools support pagination for complete data access. Environment variable parsing was also fixed for YAML comments.
Week of September 14, 2026
What shipped
- Added prebuilt configuration for Google Cloud Bigtable with 27 administration, schema discovery, and SQL tools. Pull request #4068
- Looker tools now expose
certification_metadatain dashboard and look payloads for enterprise content certification features. Pull request #4041 - Fixed looker-generate-embed-url tool to require type and id parameters instead of treating them as optional. Pull request #3913
- Clarified
execute_sqltool description in Cloud SQL PostgreSQL prebuilt config to explain dialect, return format, and usage guidance. Pull request #3884 - Fixed CockroachDB and Redis sources to properly release connection handles when connection attempts fail. Pull request #3933
- Added evals for cloud-sql-mssql covering table listing and SQL Server version queries. Pull request #3942
- Parameterized exit gate configuration to support testing release pipelines in sandbox environments. Pull request #4047
- Documented groups schema and specification for the com.google.cloud/toolbox.v1 extension. Pull request #3937
Why it matters
v1.12.0 expands integration support with new Bigtable configuration and improves existing integrations like Looker and Cloud SQL. Tool parameter handling and documentation refinements help prevent misuse and clarify capabilities for users.
Changelog entry
- feat(bigtable): add prebuilt config for bigtable with 27 administration, schema discovery, and SQL tools Pull request #4068
- feat(tool/looker): expose
certification_metadatain looker dashboard and look tools Pull request #4041 - fix(tool/looker-generate-embed-url): require embed parameters instead of treating as optional Pull request #3913
- fix(prebuilt/cloud-sql-postgres): clarify
execute_sqltool description Pull request #3884 - fix(source/cockroachdb,source/redis): release the handle when a connect attempt fails Pull request #3933
- ci(evals): add cloud-sql-mssql evals Pull request #3942
- ci: parameterize exit gate configuration Pull request #4047
- docs(extensions): add groups schema and specification for com.google.cloud/toolbox.v1 Pull request #3937