Tools
Langfuse v4.22-v4.24 adds a per-tool invocation count measure and makes LANGFUSE_AI_PROVIDER required instead of defaulting to Bedrock
Across three releases on 2026-08-27 and 2026-08-28, Langfuse added `toolCallInvocations` as a measure for per-tool invocation counts (#16622), dashboard and widget export in the core S3 data export, evaluator version restore, and MCP exposure of v4 migration data. v4.24.0 carries a breaking change requiring `LANGFUSE_AI_PROVIDER` to be set rather than silently defaulting to Bedrock. If you track agent behaviour rather than just token spend, a first-class tool-invocation count is the metric that was missing.
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