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Susana Ferreira
95328f1ead
## Problem The `provider` label was inconsistent between AI Gateway metrics. Every metric emitted by the gateway labels `provider` with the provider instance name, for example `anthropic-eu`, while `coder_ai_gateway_cost_control_unpriced_token_usage_records_total` used the provider type, for example `anthropic`. The two could not be correlated on `provider`. The metric was also inconsistent with itself: the path where a provider fails to resolve labelled by instance name, and the path where a model has no price labelled by type. The type is still worth exposing, since prices are keyed on `(provider_type, model)` and that is what an operator needs to add a price. ## Changes - Label the metric with `provider` (the instance name, consistent with the other gateway metrics) and add `provider_type` (the configured type the price is keyed on). - Use `unknown` for `provider_type` when the provider does not resolve to a configured type. - Log the unresolved-provider case at `warn` instead of `info`. A missing price is an expected steady state, but a provider that cannot be resolved is not. - Update the metrics docs and the `metricsdocgen` fixture. Closes [AIGOV-574](https://linear.app/codercom/issue/AIGOV-574) > [!NOTE] > Initially generated by Claude Opus 5, modified and reviewed by @ssncferreira