test-strategy-hardening SKILL.md skillA
test-strategy-hardening from swyxio/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add swyxio/skills/test-strategy-hardening@git:20260809.02acf6bPins git:20260809.02acf6b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- swyxio/skills
- Path
test-strategy-hardening/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260809.02acf6b, committed Aug 9, 2026
- First version recorded
- May 22, 2026
- Size
- 4,303 bytes
- Repository stars
- 194
- License
- MIT
Diagnose or improve tests as a system, including flaky or nondeterministic suites, duplicated coverage, expensive fixtures, slow feedback, and test selection. Use only when the user explicitly makes test architecture or suite behavior the primary task. Do not trigger for ordinary implementation work, adding or fixing a regression test, resolving one product bug, or running existing checks.
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 Strategy Hardening Improve confidence per minute without inflating test count or ceremony. ## Counterweight: confidence, not test inventory - Start from the decision the suite must support and the plausible defect it must catch. - Search for replacement coverage before adding a test. Delete or consolidate tests when confidence remains equivalent. - Do not create unit, integration, end-to-end, snapshot, fixture, and contract layers as a completeness ladder. - Prefer fixing product nondeterminism or simplifying the seam over building elaborate test harnesses around it. - Treat coverage percentage, test count, suite breadth, and green full-suite runs as signals, not goals. - Do not refactor unrelated tests, rewrite fixtures, add retries, expand CI matrices, or run global suites solely because test code was touched. - Preserve focused failure localization; deduplication is not valuable when it makes diagnosis harder. - Stop when the named suite problem is resolved and proportionally verified. Report remaining blind spots without filling them speculatively. ## Define the contract Before changing a test suite: 1. Name the behavior that could regress and who observes it. …
Read the whole file at its exact version.
How to install
mdr add swyxio/skills/test-strategy-hardening@sha256:6c48eb37d5344e77The line at the top of this page pins the label git:20260809.02acf6b, 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_f2qczj3nufuyv2cj)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between May 22, 2026 and Aug 9, 2026, about one every 26 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260809.02acf6b latest | 2026-08-09 | 02acf6b | 4,303 B | A | view · diff |
| git:20260809.243a0c6 | 2026-08-09 | 243a0c6 | 3,217 B | A | view · diff |
| git:20260801.b8d38b2 | 2026-08-01 | b8d38b2 | 7,591 B | A | view · diff |
| git:20260522.ba97b05 | 2026-05-22 | ba97b05 | 2,882 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 (4303 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
swyxio/skills · 194 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_f2qczj3nufuyv2cj GET https://markdownregistry.com/api/v1/resolve?ref=swyxio/skills/test-strategy-hardening GET https://markdownregistry.com/api/v1/blob/6c48eb37d5344e77484df91c04d68d34ecfa86396d7b8cd96bc15ac30ae04360
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.