outside-in-tdd SKILL.md skillA
outside-in-tdd from sebastiendegodez/skraft-plugin is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add sebastiendegodez/skraft-plugin/outside-in-tdd@git:20261008.5f34c52Pins git:20261008.5f34c52 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- sebastiendegodez/skraft-plugin
- Path
plugins/skraft-framework/skills/outside-in-tdd/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261008.5f34c52, committed Oct 8, 2026
- First version recorded
- Aug 6, 2026
- Size
- 24,978 bytes
- Repository stars
- 12
- License
- GPL-3.0
Use when an approved behaviour (scenario, Gherkin example, worked example, expected result) must become working software, or when a test suite is not trustworthy evidence of it — the suite is green while the real runtime behaviour is wrong or missing because fixtures or tests supply the value, or the suite already fails but that failure may not prove the missing approved outcome. Drives outside-in / double-loop TDD with an acceptance or application-boundary test first, a trustworthy RED before…
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
# Outside-In TDD Turns an **approved** scenario into working software. Start from observable behavior at the application boundary, get trustworthy failure first, then let design emerge from failing tests. **Core rule:** real domain objects, mocked external boundaries, fast in-memory tests. **Hard rule:** no implementation code before RED is a clean behavior failure. ## Entry Gate — read before anything else This skill never decides what the expected result should be. Before entering any phase below, confirm the behaviour has an approved observable outcome — a Gherkin scenario, a worked example, an agreed expected value. When it does not: - **Stop.** No test, no implementation, no provisional choice of outcome on the business's behalf. - Name the decision that is still open, and ask for one observable example that closes it. - `bdd-methodology` owns that conversation. Re-enter here once it has an answer. An unapproved outcome driven out through a clean cycle still yields a suite that proves only that the code matches a guess. ## What this skill owns It owns **SEQUENCE**: what must be true before the next phase may start, and what evidence proves …
Read the whole file at its exact version.
How to install
mdr add sebastiendegodez/skraft-plugin/outside-in-tdd@sha256:5790bd958552fe60The line at the top of this page pins the label git:20261008.5f34c52, 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_ly3paf57rhxvtc67)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Aug 6, 2026 and Oct 8, 2026, about one every 13 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261008.5f34c52 latest | 2026-10-08 | 5f34c52 | 24,978 B | A | view · diff |
| git:20261002.91db9c9 | 2026-10-02 | 91db9c9 | 25,164 B | A | view · diff |
| git:20260930.b9fa6cd | 2026-09-30 | b9fa6cd | 25,137 B | A | view · diff |
| git:20260925.778348a | 2026-09-25 | 778348a | 24,163 B | A | view · diff |
| git:20260825.81319f4 | 2026-08-25 | 81319f4 | 23,913 B | A | view · diff |
| git:20260806.b506b65 | 2026-08-06 | b506b65 | 12,102 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 (24978 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
sebastiendegodez/skraft-plugin · 12 stars · license GPL-3.0 · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ly3paf57rhxvtc67 GET https://markdownregistry.com/api/v1/resolve?ref=sebastiendegodez/skraft-plugin/outside-in-tdd GET https://markdownregistry.com/api/v1/blob/5790bd958552fe60159803b14d7710d93536d8d682043ca8eabb23e1e6cd132d
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.