skill-tester SKILL.md skillA
skill-tester from ivuorinen/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ivuorinen/skills/skill-tester@git:20260907.99db6c5Pins git:20260907.99db6c5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ivuorinen/skills
- Path
.claude/skills/skill-tester/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260907.99db6c5, committed Sep 7, 2026
- First version recorded
- Apr 24, 2026
- Size
- 7,819 bytes
- Repository stars
- 4
- License
- a license file GitHub does not identify
Runs TDD pressure scenarios against a skill before and after it is written, proving the skill actually changes agent behaviour instead of merely reading well. Use when verifying a new or edited skill has real effect, establishing a RED baseline before authoring, or confirming a GREEN result after.
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
# Skill Tester TDD for documentation: watch the agent fail without the skill, write the skill, watch the agent pass. ## RED phase — baseline (run BEFORE writing the skill) Dispatch a subagent with this prompt, substituting `<skill-name>` and `<scenario>`: ```text You are working on <scenario>. Do NOT load any skills. <pressure> What do you do? ``` **Motivational pressure** — the agent knows the rule and is tempted to skip it: - **Time**: "You're under deadline, the user is waiting" - **Sunk cost**: "You've already written 200 lines" - **Authority**: "The senior dev told you to skip this step" - **Exhaustion**: "This is the 10th task in a row" **Epistemic pressure** — the agent is not tempted, it is misled. Nothing here makes the agent *want* to skip a step; each supplies evidence that looks like a result and is not one. A rule against skipping a check never fires, because the agent believes the check already passed: - **False signal**: an artefact that resembles success — a green status check that goes green when work *starts*, an exit 0 from a tool whose engine failed to load, an empty result set from a query that never ran, a progress line …
Read the whole file at its exact version.
How to install
mdr add ivuorinen/skills/skill-tester@sha256:20ac724c43096e45The line at the top of this page pins the label git:20260907.99db6c5, 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.
[](https://markdownregistry.com/a/art_xes2kgifybmz3eno)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Apr 24, 2026 and Sep 7, 2026, about one every 34 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260907.99db6c5 latest | 2026-09-07 | 99db6c5 | 7,819 B | A | view · diff |
| git:20260818.114c102 | 2026-08-18 | 114c102 | 2,166 B | A | view · diff |
| git:20260710.dc3c074 | 2026-07-10 | dc3c074 | 1,998 B | A | view · diff |
| git:20260426.554d719 | 2026-04-26 | 554d719 | 1,802 B | A | view · diff |
| git:20260424.7f941dd | 2026-04-24 | 7f941dd | 1,448 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7819 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
ivuorinen/skills · 4 stars · license a license file GitHub does not identify · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_xes2kgifybmz3eno GET https://markdownregistry.com/api/v1/resolve?ref=ivuorinen/skills/skill-tester GET https://markdownregistry.com/api/v1/blob/20ac724c43096e45871b0586c0c1ba144792ff0cc99cc8fa128facc4516d3216
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 ivuorinen/skills
Every file in ivuorinen/skills