Handle newer Azure AI Search knowledge bases and those set 'minimal' reasoning effort#1422
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pablocastro merged 6 commits intomicrosoft:mainfrom Feb 3, 2026
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Pull request overview
This PR updates the Azure AI Search tool to support newer versions of Azure AI Search knowledge bases, particularly those configured with 'minimal' reasoning effort. The changes migrate from the deprecated KnowledgeAgent* API to the newer KnowledgeBase* API and add logic to detect and handle minimal reasoning mode appropriately.
Key changes:
- Upgrades Azure.Search.Documents from 11.7.0-beta.7 to 11.8.0-beta.1
- Migrates from KnowledgeAgent API to KnowledgeBase API (naming and namespace changes)
- Adds detection of minimal reasoning effort configuration and routes requests accordingly
- Adds comprehensive unit tests for the new BuildKnowledgeBaseRetrievalRequest method
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.
| File | Description |
|---|---|
| Directory.Packages.props | Updates Azure.Search.Documents package version to support new KnowledgeBase API |
| tools/Azure.Mcp.Tools.Search/src/Services/SearchService.cs | Migrates to KnowledgeBase API, adds minimal reasoning detection, and implements request builder method |
| tools/Azure.Mcp.Tools.Search/tests/Azure.Mcp.Tools.Search.UnitTests/Service/SearchServiceTests.cs | Adds unit tests for BuildKnowledgeBaseRetrievalRequest covering minimal and standard reasoning scenarios |
| servers/Azure.Mcp.Server/changelog-entries/1766191976865.yaml | Documents the bug fix for supporting newer knowledge base versions |
alzimmermsft
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Fixes #1615 |
alzimmermsft
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@alzimmermsft would you mind approving this one more time? Had to update the live test recordings. |
alzimmermsft
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@pablocastro approved! Thanks for fixing this! |
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…reasoning effort (microsoft#1422) * Bump Azure Search SDK version to pick up latest KB support * Handle KBs set to 'minimal' reasoning effort * Adding changelog entry * Incorporate Copilot PR feedback * Updating live tests recording for Search * Updating live tests recording for Search (again)
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What does this PR do?
Updates the Azure AI Search knowledge base retrieve command to handle newer Azure AI Search knowledge bases and those set 'minimal' reasoning effort.
Test note: we need a new live test to catch KB-specific issues. Leaving this for a different PR since there's some coordination needed for live tests.
GitHub issue number?
--
Pre-merge Checklist
servers/Azure.Mcp.Server/CHANGELOG.mdand/orservers/Fabric.Mcp.Server/CHANGELOG.mdfor product changes (features, bug fixes, UI/UX, updated dependencies)servers/Azure.Mcp.Server/README.mdand/orservers/Fabric.Mcp.Server/README.mddocumentationeng/scripts/Process-PackageReadMe.ps1. See Package README/servers/Azure.Mcp.Server/docs/azmcp-commands.mdand/or/docs/fabric-commands.md.\eng\scripts\Update-AzCommandsMetadata.ps1to update tool metadata in azmcp-commands.md (required for CI)ToolDescriptionEvaluatorand obtained a score of0.4or more and a top 3 ranking for all related test promptsconsolidated-tools.json/servers/Azure.Mcp.Server/docs/e2eTestPrompts.mdcrypto mining, spam, data exfiltration, etc.)/azp run mcp - pullrequest - liveto run Live Test Pipeline