agent-evals-and-observability SKILL.md skillA

agent-evals-and-observability from magnus919/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add magnus919/agent-skills/agent-evals-and-observability@git:20261020.92c327e

Pins git:20261020.92c327e in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
magnus919/agent-skills
Path
agent-evals-and-observability/SKILL.md
Versions recorded
10
Latest version
git:20261020.92c327e, committed Oct 20, 2026
First version recorded
Jul 13, 2026
Size
8,666 bytes
Repository stars
140
License
MIT

Design, run, review, or release framework- and vendor-neutral evaluations and observability for AI agents. Use when defining agent evals, datasets, graders, trajectory review, regression analysis, release gates, production traces, or privacy-aware telemetry. Covers task and trajectory contracts, statistical comparisons, and incident-to-case learning; route framework implementation to pydanticai or langgraph when needed. Do not use this skill for unrelated requests; route to the nearest named…

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

# Agent Evals and Observability

Evaluation asks whether behavior meets a defined criterion on a declared dataset or production sample. Observability supplies traces, logs, metrics, correlations, and diagnostic context. Use both; neither proves what the other does.

## Workflow

1. Define the decision, risk, task contract, trajectory contract, and unacceptable outcomes. Select evidence by harm, reversibility, and deployment stage, not a staged completeness scale.
2. Create an immutable dataset version and manifest before comparing versions. Declare provenance, rights/consent, slices, fixtures, expected side effects, contamination risk, limitations, retention, and changelog.
3. Select complementary graders that observe the claimed property. Use deterministic checks for observable mechanics; use execution/environment checks for state and side effects; use human, model-judge, pairwise/ranking, domain, and safety review where appropriate.
4. Run the candidate and baseline under comparable conditions. Preserve run configuration, stochastic repeats where variability affects the decision, failures/timeouts, and trajectory evidence.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add magnus919/agent-skills/agent-evals-and-observability@sha256:6eb8881f85b58a72

The line at the top of this page pins the label git:20261020.92c327e, 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 badge

[![mdr](https://markdownregistry.com/badge/art_7lm334x6q2ia3mie.svg)](https://markdownregistry.com/a/art_7lm334x6q2ia3mie)

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

Versions

The registry has recorded 10 versions of this file, between Jul 13, 2026 and Oct 20, 2026, about one every 11 days.

versioncommittedcommitsizeaudit
git:20261020.92c327e latest2026-10-20 92c327e 8,666 BA view · diff
git:20261008.3c946d92026-10-08 3c946d9 8,527 BA view · diff
git:20261006.54dd90c2026-10-06 54dd90c 7,846 BA view · diff
git:20261004.affec9d2026-10-04 affec9d 7,229 BA view · diff
git:20260925.1a7d5752026-09-25 1a7d575 6,940 BA view · diff
git:20260914.de3f7a32026-09-14 de3f7a3 6,629 BA view · diff
git:20260902.035e58d2026-09-02 035e58d 6,121 BA view · diff
git:20260809.4a5f18e2026-08-09 4a5f18e 6,034 BA view · diff
git:20260802.c5fd9c92026-08-02 c5fd9c9 5,659 BA view · diff
git:20260713.d85ed672026-07-13 d85ed67 5,484 BA 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 (8666 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

magnus919/agent-skills · 140 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_7lm334x6q2ia3mie
GET https://markdownregistry.com/api/v1/resolve?ref=magnus919/agent-skills/agent-evals-and-observability
GET https://markdownregistry.com/api/v1/blob/6eb8881f85b58a72951bc6deb080d2adfc48937abee6c49ee749881117d6e92a

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.

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