feat: type ResultMessage.model_usage as dict[str, ModelUsage]#1143
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qing-ant merged 1 commit intoJul 22, 2026
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Adds a ModelUsage TypedDict mirroring the TypeScript SDK's ModelUsage shape and tightens ResultMessage.model_usage from dict[str, Any] to dict[str, ModelUsage]. The value is passed through verbatim from the CLI's modelUsage field, so this is a type-only change. The two new NotRequired fields (canonicalModel, provider) are emitted by the CLI once anthropics/claude-cli-internal#50283 lands; they give callers a stable key for their own rate-table lookups across provider-specific model ids and aliases. Co-authored-by: benlehrburger-ant <benlehrburger-ant@users.noreply.github.com> No-Verification-Needed: type-annotation-only (TypedDict + __all__ export), no runtime behavior change
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benlehrburger-ant
marked this pull request as ready for review
July 22, 2026 01:50
qing-ant
approved these changes
Jul 22, 2026
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Adds a
ModelUsageTypedDict mirroring the TypeScript SDK'sModelUsageshape and tightensResultMessage.model_usagefromdict[str, Any]todict[str, ModelUsage]. The value is passed through verbatim from the CLI'smodelUsagefield, so this is type-only — no runtime behavior change.The two new
NotRequiredfields (canonicalModel,provider) are emitted by the CLI once anthropics/claude-cli-internal#50283 lands. They give callers a stable key for their own rate-table lookups across provider-specific model ids and aliases (e.g. Bedrock ARNs →claude-opus-4-7), so cost drift like "Opus 4.6/4.7 priced as 4.5" is detectable client-side. Per-token rates were intentionally left out of this pass (not authoritative); may follow separately with a source marker.Verification: type-annotation-only;
py_compileclean on changed files; existingtest_parse_result_message_with_model_usagecovers the passthrough shape.