OpenCode identifies clients by request headers, the same way OpenRouter
does. Our opencode-zen and opencode-go profiles never set any, so every
request went out with the OpenAI SDK default "OpenAI/Python x.y.z"
User-Agent and OpenCode had no way to tell the traffic was Hermes Agent.
Two changes:
- Add HTTP-Referer, X-Title, and a HermesAgent User-Agent to both
OpenCode profiles through profile.default_headers, the same path
Fireworks uses. This covers chat_completions, codex_responses,
auxiliary clients, model switches, and the models catalog fetch.
- Merge the same headers in build_anthropic_client for opencode.ai
base URLs. The Anthropic Messages route (Claude on Zen, MiniMax and
Qwen on Go) builds its client there and never sees profile headers.
Verified against the live Go relay with a real key. Both wire formats
return HTTP 200 and the requests now carry X-Title "Hermes Agent",
HTTP-Referer, and User-Agent HermesAgent/0.20.0.
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