# Hud agent playbooks

> Hud is a runtime code sensor. It reports per-function and per-endpoint metrics and forensics (the exception, the call path and the slow function) from production. These pages tell coding agents how to read Hud data with the tools they already have.

## Surfaces

- [Hud on the AWS OpenSearch Observability MCP app](https://skills.hud.io/aws-opensearch-observability-stack-mcp?via=index): Playbooks for investigating production errors, slow endpoints and deployment regressions with Hud data through AWS's OpenSearch Observability MCP app: hud_* metrics in Amazon Managed Service for Prometheus (AMP) through metrics_query, and hud.investigation forensics in OpenSearch (logs-otel-v1-*) through ppl_query.