Pi/omp sessions kept falling into the Claude record when the api field merely started with 'anthropic'. Kimi and other providers that speak the anthropic-messages protocol (kimi-coding) were therefore charged against Claude Code, showing k3 buckets under a Claude tab even for a user without a Claude login. Match the codex collector's provider-only attribution: only sessions whose provider is exactly 'anthropic' count toward Claude usage. Add a test proving a kimi-coding session sharing the anthropic-messages api does not land in the Claude record. Co-authored-by: Luca <luca@itwasarch>