subagent-testing SKILL.md skillA
subagent-testing from athola/claude-night-market is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add athola/claude-night-market/subagent-testing@git:20260902.4a35d69Pins git:20260902.4a35d69 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- athola/claude-night-market
- Path
plugins/abstract/skills/subagent-testing/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260902.4a35d69, committed Sep 2, 2026
- First version recorded
- May 21, 2026
- Size
- 3,350 bytes
- Repository stars
- 348
- License
- MIT
Test skills via TDD in fresh subagents. Use when validating behavior or preventing bias.
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
# Subagent Testing - TDD for Skills Test skills with fresh subagent instances to prevent priming bias and validate effectiveness. ## When NOT To Use - Writing the skill under test (use `abstract:skill-authoring`) - A static quality audit with no execution (use `abstract:skills-eval`) ## Overview **Fresh instances prevent priming:** Each test uses a new Claude conversation to verify the skill's impact is measured, not conversation history effects. ## Why Fresh Instances Matter ### The Priming Problem Running tests in the same conversation creates bias: - Prior context influences responses - Skill effects get mixed with conversation history - Can't isolate skill's true impact ### Fresh Instance Benefits - **Isolation**: Each test starts clean - **Reproducibility**: Consistent baseline state - **Measurement**: Clear before/after comparison - **Validation**: Proves skill effectiveness, not priming ## Testing Methodology Three-phase TDD-style approach: ### Phase 1: Baseline Testing (RED) Test without skill to establish baseline behavior. ### Phase 2: With-Skill Testing (GREEN) Test with skill loaded to measure improvements. ### Phase 3: Rationalization Testing (REFACTOR) …
Read the whole file at its exact version.
How to install
mdr add athola/claude-night-market/subagent-testing@sha256:b4dfae04e710d727The line at the top of this page pins the label git:20260902.4a35d69, 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_56zsdji4oaztar4u)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between May 21, 2026 and Sep 2, 2026, about one every 26 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260902.4a35d69 latest | 2026-09-02 | 4a35d69 | 3,350 B | A | view · diff |
| git:20260823.ed8726d | 2026-08-23 | ed8726d | 3,631 B | A | view · diff |
| git:20260713.f98719b | 2026-07-13 | f98719b | 3,686 B | A | view · diff |
| git:20260622.63c6c16 | 2026-06-22 | 63c6c16 | 3,529 B | A | view · diff |
| git:20260521.810b41c | 2026-05-21 | 810b41c | 2,853 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 (3350 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
athola/claude-night-market · 348 stars · license MIT · pushed 2026-11-05 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_56zsdji4oaztar4u GET https://markdownregistry.com/api/v1/resolve?ref=athola/claude-night-market/subagent-testing GET https://markdownregistry.com/api/v1/blob/b4dfae04e710d72706611da226fced561161d668e39f7bbb85f6e11fcbac72e8
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.