fix: trace Anthropic messages behind proxy path prefixes#167
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ekeith (evanmkeith) merged 1 commit intoJun 25, 2026
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## Summary
Fix Anthropic Go SDK tracing when the Anthropic client is configured with a proxy/base URL that adds a path prefix before `/v1/messages`.
`traceanthropic` previously matched the request path exactly against `/v1/messages`, so paths like `/clapi/transparent/aws_bedrock/v1/messages` returned `nil` from the router and
bypassed tracing. This updates the router to suffix-match the Anthropic Messages endpoint, matching the existing OpenAI tracing behavior for custom/proxy base URLs.
## Test Plan
- Added a regression test for a proxy-prefixed Anthropic Messages path:
`/clapi/transparent/aws_bedrock/v1/messages`
- Ran the focused repro test locally in a disposable copy and confirmed it fails before the fix.
Matt Perpick (clutchski)
approved these changes
Jun 25, 2026
ekeith (evanmkeith)
deleted the
06-25-fix-traceanthropic-proxy-path-matching
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Summary
Fix Anthropic Go SDK tracing when the Anthropic client is configured with a proxy/base URL that adds a path prefix before
/v1/messages.traceanthropicpreviously matched the request path exactly against/v1/messages, so paths like/clapi/transparent/aws_bedrock/v1/messagesreturnednilfrom the router andbypassed tracing. This updates the router to suffix-match the Anthropic Messages endpoint, matching the existing OpenAI tracing behavior for custom/proxy base URLs.
Test Plan
/clapi/transparent/aws_bedrock/v1/messages