sentry-elixir-sdk

This skill is an opinionated setup wizard for adding the Sentry SDK to Elixir applications, covering error monitoring, tracing, logging, and crons for Phoenix, Plug, LiveView, Oban, and Quantum. It solves the tedious, easy-to-get-wrong task of instrumenting an Elixir app for observability by first scanning the project to understand what is present, then guiding the developer through only the relevant configuration steps.

It runs a detection phase using read-only shell commands (grepping mix.exs and .tool-versions) to find an existing Sentry dependency, the Elixir version, and whether Phoenix, LiveView, Oban, Quantum, or OpenTelemetry are in use, mapping each signal to concrete recommendations such as adding Sentry.PlugCapture and Sentry.PlugContext, wiring Sentry.LiveViewHook, or enabling crons. Reference files break out error monitoring, tracing, logging, and crons in depth. It documents the logging architecture, contrasting the Erlang :logger-based Sentry.LoggerHandler (for issues) with the Sentry Logs protocol (for structured log search), including before_send_log filtering and telemetry processor routing, and notes minimum SDK versions and Elixir ~> 1.13 compatibility. It advises verifying against the official Sentry docs before implementing.

It is aimed at Elixir and Phoenix developers who want production-grade error monitoring and observability. This is a legacy/parent-linked SDK-setup skill with model invocation disabled, invoked when a user explicitly asks to add or configure Sentry for Elixir. Standard credential handling (a Sentry DSN via app config) is documented as normal setup, with no exfiltration or unsafe behavior.