fix(provider/openai): file search tool optional query

[callycodes]

Background

When the query param isn't included, tool-output-error chunk is thrown despite the tool executing correctly. Is triggering stopWhen conditions to run until expiry (30 runs for example when stopWhen: stepCountIs(30))

When the search query is not included, the provider determines it.

Summary

Made the query param optional in the file_search openai tool.

Manual Verification

Using this fix in an internal version with positive results.

Tasks

• Tests have been added / updated (for bug fixes / features)
• Documentation has been added / updated (for bug fixes / features)
• A patch changeset for relevant packages has been added (for bug fixes / features - run pnpm changeset in the project root)
• Formatting issues have been fixed (run pnpm prettier-fix in the project root)
• I have reviewed this pull request (self-review)

Future Work

Related Issues

Fixes #8479

[gr2m]

can you add a test for the file_search without using a query?

I tried to find the docs and looked through OpenAI's OpenAPI spec but couldn't find where it lists the arguments for the file_search tool. Can you point me to it?

[callycodes]

can you add a test for the file_search without using a query?

I tried to find the docs and looked through OpenAI's OpenAPI spec but couldn't find where it lists the arguments for the file_search tool. Can you point me to it?

Yeah they don't make it easy to find - https://platform.openai.com/docs/api-reference/responses/create#responses-create-tools. Have to toggle 'Show possible types'

Will add a test shortly

[callycodes]

Closing as this has been resolved in another PR