skill-tdd SKILL.md skillA
skill-tdd from nyldn/claude-octopus is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nyldn/claude-octopus/skill-tdd@git:20260907.4febbb1Pins git:20260907.4febbb1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nyldn/claude-octopus
- Path
.claude/skills/skill-tdd/SKILL.md- Versions recorded
- 6
- Latest version
- git:20260907.4febbb1, committed Sep 7, 2026
- First version recorded
- May 19, 2026
- Size
- 3,233 bytes
- Repository stars
- 4,409
- License
- MIT
Build a behavior change with observed red, minimal green, and measured test consolidation.
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
# Test-driven development Read `skills/blocks/engineering-method-selection.md` from the installed plugin for review admission. Natural-language requests and `--peer-review` share that policy. Honor host-only requests; risk alone does not authorize paid usage. Run the red, green, and refactor cycle on the current host. Routine TDD makes zero additional provider dispatches. Use one external reviewer only when the user passes `--peer-review`, explicitly requests independent review, or an existing risk policy requires it. Explicit debate, council, and multi-model commands retain their own execution contracts. <HARD-GATE> NO PRODUCTION BEHAVIOR CHANGE WITHOUT AN OBSERVED, EXPECTED FAILING TEST FIRST. </HARD-GATE> ## The rule Do not change production behavior until a focused test fails for the expected reason. Existing implementation outside the requested change remains intact. 1. Name the observable behavior and the smallest public boundary that proves it. 2. Write one focused test. Directly test an internal invariant only when the public boundary cannot isolate its failure mode. 3. Run it and record the expected failure, command, and exit status. …
Read the whole file at its exact version.
How to install
mdr add nyldn/claude-octopus/skill-tdd@sha256:fb6141e03082ae1dThe line at the top of this page pins the label git:20260907.4febbb1, 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_4tvdbgyzza64kmka)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between May 19, 2026 and Sep 7, 2026, about one every 22 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260907.4febbb1 latest | 2026-09-07 | 4febbb1 | 3,233 B | A | view · diff |
| git:20260906.89d2d35 | 2026-09-06 | 89d2d35 | 2,998 B | A | view · diff |
| git:20260813.14437ae | 2026-08-13 | 14437ae | 9,274 B | A | view · diff |
| git:20260810.4407017 | 2026-08-10 | 4407017 | 9,228 B | A | view · diff |
| git:20260615.cf8410b | 2026-06-15 | cf8410b | 9,321 B | A | view · diff |
| git:20260519.8e7e251 | 2026-05-19 | 8e7e251 | 8,709 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 (3233 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
nyldn/claude-octopus · 4,409 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4tvdbgyzza64kmka GET https://markdownregistry.com/api/v1/resolve?ref=nyldn/claude-octopus/skill-tdd GET https://markdownregistry.com/api/v1/blob/fb6141e03082ae1d4a0800157a20825d487f73578e142fc67176269a12474773
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 nyldn/claude-octopus
Every file in nyldn/claude-octopus