observability SKILL.md skillA

observability from aethrox/doctrine is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add aethrox/doctrine/observability@git:20260809.2a45dbb

Pins git:20260809.2a45dbb in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: aethrox/doctrine
Path: skills/observability/SKILL.md
Versions recorded: 3
Latest version: git:20260809.2a45dbb, committed Aug 9, 2026
First version recorded: Aug 9, 2026
Size: 4,927 bytes
Repository stars: 19
License: MIT

Discipline for making a service's health answerable without reading its code, structured logging, the four golden signals (latency, errors, traffic, saturation), and an SLI/SLO/error-budget definition with alerts that link a runbook. Use when adding logging to a service, instrumenting metrics or tracing, defining what "healthy" means for a service, setting up alerts, or when the user asks how to monitor, debug in production, or know if something is broken.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Observability

A service is not done until someone who has never read its code can answer "is it healthy right now" from its telemetry alone. That means structured logs that a platform can index and correlate, the four golden signals tracked per service, and an explicit SLO with an error budget, not "we'll notice if it breaks."

## Phase 1: Structured logging

- Every log line is a structured record (JSON or the platform's structured format), not a hand-built string; fields are queryable and indexable; a concatenated string is only greppable.
- Every log line inside a request/job carries a **correlation ID** (trace ID / request ID) so a slow request, its trace, and its log lines can be joined without copy-pasting timestamps.
- Log levels mean something consistent across the codebase: `error` = needs human attention, `warn` = degraded but self-recovering, `info` = significant state change (request completed, job started), `debug` = development-time detail, off by default in production.
- Never log a secret, full payload, or PII field directly; log its presence or a redacted/hashed form (same redaction discipline as `diagnosing-bugs` and `secure-coding`).
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add aethrox/doctrine/observability@sha256:21e8e935a7579071

The line at the top of this page pins the label git:20260809.2a45dbb, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_7wx3od2yocqkni3l.svg)](https://markdownregistry.com/a/art_7wx3od2yocqkni3l)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, all committed on Aug 9, 2026.

version	committed	commit	size	audit
git:20260809.2a45dbb latest	2026-08-09	2a45dbb	4,927 B	A	view · diff
git:20260809.5c2aad2	2026-08-09	5c2aad2	4,831 B	A	view · diff
git:20260809.21f29b0	2026-08-09	21f29b0	4,879 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (4927 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

aethrox/doctrine · 19 stars · license MIT · pushed 2026-09-11 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_7wx3od2yocqkni3l
GET https://markdownregistry.com/api/v1/resolve?ref=aethrox/doctrine/observability
GET https://markdownregistry.com/api/v1/blob/21e8e935a7579071b396cd6e27a3224547e60a1f7c7dc0ba40c16506412d1c21

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

More from aethrox/doctrine

api-design-standards SKILL.md skill

aethrox/doctrine · skills/api-design-standards/SKILL.md · API design discipline grounded in the Microsoft/Google REST guidelines, resource and URL conventions, a chosen…