feat(tools/looker): Enable Get All Lookml Tests, Run LookML Tests, and Create View From Table tools for Looker by Anthrino · Pull Request #2522 · googleapis/mcp-toolbox

Anthrino · 2026-02-19T17:07:49Z

Description

Adds a new MCP tool to fetch all available LookML tests for a project that can be executed for validation of changes via the toolbox.

Invokes the Looker API Get All LookML Tests (AllLookmlTests sdk method), which can fetch all defined tests and use the project_id and file_id parameters to narrow the scope as required.

Adds a new MCP tool to run a LookML test for a project.

Adds a new MCP tool to create a new view from a table.

PR Checklist

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🛠️ Fixes #2447, #2448, #2450

gemini-code-assist · 2026-02-19T17:08:11Z

Summary of Changes

Hello @Anthrino, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly enhances the Looker integration within the toolbox by adding a new capability to retrieve LookML tests. This new tool allows users to programmatically fetch and inspect LookML tests defined in a Looker project, facilitating automated validation and deeper insights into data model integrity.

Highlights

New Looker Tool Added: A new Looker tool, looker-get-lookml-tests, has been introduced to fetch all available LookML tests for a specified project.
LookML Test Retrieval: This tool integrates with the Looker API's AllLookmlTests method, allowing users to retrieve tests for validation of LookML code and underlying data, with optional filtering by file ID.
Configuration and Integration: The tool's configuration, including its description, required parameters (project_id), and optional parameters (file_id), has been added to the looker.yaml prebuilt configuration and integrated into the looker_tools toolset.

Changelog

cmd/root.go
- Imported the new lookergetlookmltests package to register the tool.
internal/prebuiltconfigs/tools/looker.yaml
- Defined the get_lookml_tests tool with its kind, source, description, and parameters (project_id, file_id).
- Added get_lookml_tests to the looker_tools toolset.
internal/tools/looker/lookergetlookmltests/lookergetlookmltests.go
- Implemented the core logic for the looker-get-lookml-tests tool, including configuration parsing, tool initialization, and invocation of the Looker SDK's AllLookmlTests method.
internal/tools/looker/lookergetlookmltests/lookergetlookmltests_test.go
- Added unit tests to verify the correct parsing of the looker-get-lookml-tests tool configuration from YAML.
tests/looker/looker_integration_test.go
- Updated the Looker integration test suite to include the new get_lookml_tests tool, ensuring its proper registration and parameter handling.

Activity

The pull request introduces a new feature to enable the "Get All LookML Tests" tool for Looker.
Initial implementation and configuration changes have been committed.
Unit and integration tests have been added to cover the new functionality.

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Code Review

This pull request introduces the get_lookml_tests tool for Looker, enabling users to fetch LookML tests for a specific project. The implementation is generally sound and follows the established patterns for Looker tools in this repository. The identified issues regarding parameter handling in the SDK call, documentation clarity for the LLM, and a mismatch in the integration tests are valid and should be addressed to ensure correctness and maintainability.

drstrangelooker · 2026-02-20T15:28:45Z

/gcbrun

drstrangelooker · 2026-02-20T15:36:20Z

You need to add an import for the tool at cmd/internal/imports.go. You will also need to add the new tool to the prebuilt config test in cmd/internal/tools_file_test.go. Plus add docs under /docs/en/resources/tools/looker and in docs/en/reference/prebuilt-tools.md.

drstrangelooker · 2026-02-20T16:23:17Z

/gcbrun

drstrangelooker · 2026-02-20T16:24:48Z

I fixed this up, please pull it down before adding the documents.

drstrangelooker · 2026-02-20T16:31:27Z

Use the changes I made here as a guide for your other two tools. Also, you may want to collapse all three tools into one PR

drstrangelooker · 2026-02-20T16:31:54Z

/gcbrun

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

…fig test. fixes for integration tests

drstrangelooker · 2026-02-26T17:24:51Z

/gcbrun

drstrangelooker · 2026-02-26T17:26:25Z

internal/tools/looker/lookercreateviewfromtable/lookercreateviewfromtable.go should have a copyright year of 2026
internal/tools/looker/lookercreateviewfromtable/lookercreateviewfromtable_test.go should have a copyright year of 2026
internal/tools/looker/lookerrunlookmltests/lookerrunlookmltests.go should have a copyright year of 2026
internal/tools/looker/lookerrunlookmltests/lookerrunlookmltests_test.go should have a copyright year of 2026

drstrangelooker · 2026-02-26T20:28:32Z

/gcbrun

drstrangelooker · 2026-02-26T20:35:45Z

/gcbrun

drstrangelooker · 2026-02-27T14:01:31Z

/gcbrun

duwenxin99 · 2026-02-27T16:09:54Z

/gcbrun

Anthrino requested review from a team February 19, 2026 17:07

blunderbuss-gcf Bot assigned Yuan325 Feb 19, 2026

gemini-code-assist Bot reviewed Feb 19, 2026

View reviewed changes

Comment thread internal/tools/looker/lookergetlookmltests/lookergetlookmltests.go

Comment thread internal/tools/looker/lookergetlookmltests/lookergetlookmltests.go Outdated

Comment thread tests/looker/looker_integration_test.go Outdated

drstrangelooker added the tests: run Label to trigger Github Action tests. label Feb 20, 2026

github-actions Bot removed the tests: run Label to trigger Github Action tests. label Feb 20, 2026

Anthrino and others added 8 commits February 26, 2026 15:37

feat(tools/looker): Enable Get All Lookml Tests tool for Looker

7fa7437

Fix optional query param file_id to use *string pointer

a68f60a

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Improve parameter descriptions as per AI review suggestions

f49c65e

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Update copyright year for new file lookergetlookmltests.go

638cd93

Update copyright year for new file lookergetlookmltests_test.go

469c745

fixes for the return type of invoke, the import, and the prebuilt con…

b353c52

…fig test. fixes for integration tests

feat(tools/looker): Enable Run Lookml Tests tool for Looker

4110140

feat(tools/looker): Enable Lookml View creation from table in Looker

e84d1ec

Anthrino force-pushed the looker-get-all-tests branch from dd2a308 to e84d1ec Compare February 26, 2026 16:12

Anthrino requested review from a team as code owners February 26, 2026 16:12

drstrangelooker added the tests: run Label to trigger Github Action tests. label Feb 26, 2026

github-actions Bot removed the tests: run Label to trigger Github Action tests. label Feb 26, 2026

drstrangelooker approved these changes Feb 26, 2026

View reviewed changes

chore: fix error return types, add proper imports.

a43fc92

drstrangelooker added the tests: run Label to trigger Github Action tests. label Feb 26, 2026

github-actions Bot removed the tests: run Label to trigger Github Action tests. label Feb 26, 2026

disable unsupported test

699037d

drstrangelooker added the tests: run Label to trigger Github Action tests. label Feb 26, 2026

github-actions Bot removed the tests: run Label to trigger Github Action tests. label Feb 26, 2026

Merge branch 'main' into looker-get-all-tests

7aef485

drstrangelooker added the tests: run Label to trigger Github Action tests. label Feb 27, 2026

github-actions Bot removed the tests: run Label to trigger Github Action tests. label Feb 27, 2026

Merge branch 'main' into looker-get-all-tests

c51b397

duwenxin99 added the tests: run Label to trigger Github Action tests. label Feb 27, 2026

github-actions Bot removed the tests: run Label to trigger Github Action tests. label Feb 27, 2026

duwenxin99 approved these changes Feb 27, 2026

View reviewed changes

duwenxin99 merged commit e01139a into googleapis:main Feb 27, 2026

release-please Bot mentioned this pull request Feb 27, 2026

chore(main): release 0.28.0 #2472

Merged

BrewTestBot mentioned this pull request Mar 3, 2026

mcp-toolbox 0.28.0 Homebrew/homebrew-core#270280

Merged

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Anthrino commented Feb 19, 2026 •

edited by drstrangelooker

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