anomalyco / anomalyco/opencode
ACP `usage_update` mislabels non-USD costs as USD
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Since Jul 24, 2026.
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Description
Description
OpenCode's custom provider model configuration accepts numeric token cost rates but does not accept
their currency. The internal assistant-message cost is also stored as a bare number. When OpenCode
projects that number into ACP, it unconditionally emits currency: "USD".
As a result, a custom provider priced in EUR can have the correct numeric amount reported with the
wrong currency. In the deterministic reproduction below, a provider cost of 30 EUR is emitted
as 30 USD.
Plugins
No response
OpenCode version
OpenCode 1.18.3
Steps to reproduce
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Screenshot and/or share link
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Operating System
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Terminal
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