Creating trace views requires create prompt permission

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Summary

Issue: Creating a custom trace view fails or is blocked unless the user has the create prompt permission on the project. Cause: Custom views are not a separate object type. They are stored as prompt/function rows with function_type = 'custom_view', alongside other project prompts. Resolution: Grant the user the create prompt permission on the project.

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Resolution steps

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If a user cannot create a custom trace view

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Step 1: Check the user’s project permissions

In Settings > Access control, verify the user has the Prompt: Create permission for the project.

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Step 2: Grant the required permission

Assign a role that includes Prompt: Create, or add the permission to a custom role for that project.

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Background

Custom views use the same storage layer as prompts. When you create a custom trace view, Braintrust stores the view configuration and generated code as a prompt/function row with function_type = 'custom_view'. Because of this, the permission check at creation time is identical to creating a prompt.