# Application metrics setup (/observability--metrics-setup)

/observability--metrics-setup is a Claude Code skill in the Code section. Adds a small set of application metrics to your app using the RED and USE methods, exported via Prometheus or OpenTelemetry, with cardinality kept in check.

- Web version: https://skills.sgomez.dev/en/s/observability--metrics-setup
- Section: [Code](https://skills.sgomez.dev/en/code.md)
- Author: Santiago Gómez de la Torre
- License: MIT
- Source: https://github.com/sgomez-dev/claude-skills/blob/main/skills/observability/metrics-setup.md
- Updated 10 Jul 2026

## How to ask for it

- `/observability--metrics-setup add RED metrics to my API with Prometheus`
- `/observability--metrics-setup instrument my service with OpenTelemetry`
- `/observability--metrics-setup I want error rate and latency per endpoint`

## Install

macOS · Linux:

```
curl -fsSL https://raw.githubusercontent.com/sgomez-dev/claude-skills/main/install.sh | bash
```

Windows:

```
irm https://raw.githubusercontent.com/sgomez-dev/claude-skills/main/install.ps1 | iex
```

Claude Code plugin:

```
/plugin marketplace add sgomez-dev/claude-skills
/plugin install observability-skills@claude-skills-collection
```

## Permissions

- Reads: `**/*`
- Writes: `src/**`, `lib/**`, `app/**`, `config/**`, `**/*.md`, `**/*.yml`, `**/*.yaml`
- Runs: —
- Network: No
- Destructive: No

## Author's description

Instrument app metrics with RED/USE method via Prometheus or OpenTelemetry

- [How we review this](https://skills.sgomez.dev/en/methodology.md)