testing-contract SKILL.md skillC
testing-contract from atnexuslab/tightship is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add atnexuslab/tightship/testing-contract@git:20261015.8e86e2cPins git:20261015.8e86e2c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- C, 14 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- atnexuslab/tightship
- Path
content/skills/testing-contract/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261015.8e86e2c, committed Oct 15, 2026
- Size
- 2,931 bytes
- Repository stars
- 4
- License
- MIT
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
+++ name = "testing-contract" description = "Use before writing or changing a test — whether the change earns one, which existing test absorbs it, and how to write it so it locks real behavior and never flakes." +++ # Testing Contract Whether a test exists and which ones the suite holds is decided in the global contract's **Testing** section. This skill is how to write them. The runner, assertion style, and file layout come from the repo's own `AGENTS.md` and its existing tests — match what is there. ## Method 1. **Does the change earn a test?** No observable behavior that can break silently → no test, and move on. Nothing to state, nothing to justify. 2. **Find the test that already covers the behavior.** Modify it to catch the new case. While in that file, delete what is neither a happy path nor a real regression. 3. **Only if nothing can absorb the case, add one** — at the paths the repo's tests already use, with a name that states the behavior. 4. **See it red for the right reason** before writing the code. 5. Implement until green. ## A test executes the behavior - **Assert the observable outcome, never how it was produced.** Internals change in a refactor; the …
Read the whole file at its exact version.
How to install
mdr add atnexuslab/tightship/testing-contract@sha256:6e11c68673ddf024The line at the top of this page pins the label git:20261015.8e86e2c, 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_4dowup2klgyke7sz)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 15, 2026.
Audit of the latest version
- fail: Frontmatter block present
- fail: Frontmatter declares a name
- fail: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2931 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
atnexuslab/tightship · 4 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4dowup2klgyke7sz GET https://markdownregistry.com/api/v1/resolve?ref=atnexuslab/tightship/testing-contract GET https://markdownregistry.com/api/v1/blob/6e11c68673ddf0241da81e8f358819fbc8f9ee1b949c2b1be214005ad8613bc8
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.