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fix(models): don't pass Claude Code's session header to OpenCode - #845
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OpenCode sends requests that name the session to a backend whose validator refuses cache_control, so every new conversation on its DeepSeek failed with a 400. Not telling it the session is enough; this replaces the retry-without-marks of #844. Co-Authored-By: BaoCode <noreply@baocode.dev>
leookun
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Nov 9, 2026
…#847) #845 dropped only X-Claude-Code-Session-Id, but OpenCode still got x-opencode-session (which the proxy adds itself since #75) and the CLI's x-session-id; either one alone still routes the request to the backend that refuses cache_control. Replaying the failing requests from the usage traces: 400 with any session header, 200 with none. So nothing that names a session goes to OpenCode, and the proxy adds x-opencode-session only for Go, which refuses a request without it. Untold, OpenCode's backend refuses `tools: []` (Claude Code's side requests), so an empty list is left out. Co-authored-by: leo <leokuncn@gmail.com> Co-authored-by: BaoCode <noreply@baocode.dev>
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Replaces #844's retry-without-
cache_controlwith a simpler fix: the pass-through no longer forwardsX-Claude-Code-Session-Idtoopencode.ai. With that header, OpenCode routesdeepseek-v4.1-flashto a backend that rejectscache_control; without it the same requests succeed (checked live with a captured Claude Code request).🤖 Generated with BaoCode