Backport: fix: google.interactions agents dropping File Search tools - #17256
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## Background Deep Research agent calls through google.interactions could not be grounded with File Search because agent requests dropped all tools and only returned a warning. ## Summary Google Interactions now prepares and includes supported tools for agent requests as well as model-id requests, while keeping generation_config omitted for agents. ## Testing Updated the Google Interactions agent regression test to assert that a file_search tool is serialized on an agent request with background enabled and no tools warning is emitted. ## Related Issues Fixes #16368
aayush-kapoor
approved these changes
Jul 14, 2026
aayush-kapoor
enabled auto-merge (squash)
July 14, 2026 21:08
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This is an automated backport of #16593 to the release-v6.0 branch. FYI @lgrammel