fix(aibridge): track Charm Crush client and session ID#24630
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The actual Crush user-agent is Charm-Crush/{version} (hyphenated),
but GuessClient only checked for the space-separated charm crush/ prefix.
Now matches both formats for backwards compatibility.
Adds an explicit ClientCrush case to GuessSessionID. Crush does not
currently send a session ID header, so this returns nil (consistent
with ClientZed, ClientRoo, and ClientCursor).
Ported from coder/aibridge#277
pawbana
approved these changes
Apr 22, 2026
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Disclaimer: implemented by a Coder Agent using Claude Opus 4.6
Porting coder/aibridge#277 to coder/coder after the aibridge code move.
Summary
Fixes client detection and session ID tracking for the Charm Crush AI coding client.
Changes
Bug fix: User-Agent matching
The actual Crush user-agent is
Charm-Crush/{version} (https://charm.land/crush)(hyphenated), butGuessClientonly checked forcharm crush/(space-separated). After lowercasing,Charm-Crush/0.2.0becomescharm-crush/0.2.0, which did not match thecharm crush/prefix.Now matches both formats for backwards compatibility.
Session ID tracking
Adds an explicit
ClientCrushcase toGuessSessionID. Crush does not currently send a session ID header to upstream AI providers, so this returnsnil(consistent with howClientZed,ClientRoo, andClientCursorare handled).Tests
charm_crush_hyphentest case forGuessClientusing the real user-agent format.crush_returns_emptytest case forGuessSessionID.