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Updating authentication middleware with unmapped route dependencies leaves some routes on the old implementation. In a large API, manually auditing every route for middleware usage is error-prone. Build maps every route that depends on the middleware through the knowledge graph, generates the updated implementation, and surfaces every affected file as a diff before applying anything. Request: 
Update the authentication middleware to support OAuth
Build traces:
  • Every route that applies the current middleware
  • Every file that imports or configures it
  • Any tests that cover the existing behavior
Code generation includes:
  • Updated middleware implementation with OAuth support
  • Adjustments to every dependent route where the interface changes
  • Modified test coverage reflecting the new behavior
The complete change set appears as a diff before PR creation. Create the PR directly from the diff view.