flake-axis-bisection SKILL.md skillA
flake-axis-bisection from testland/qa is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add testland/qa/flake-axis-bisection@git:20260725.4f623d0Pins git:20260725.4f623d0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- testland/qa
- Path
plugins/qa-flake-triage/skills/flake-axis-bisection/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260725.4f623d0, committed Jul 25, 2026
- First version recorded
- Jul 19, 2026
- Size
- 18,629 bytes
- Repository stars
- 11
- License
- MIT
Locates the condition a known-flaky test actually depends on by holding the test constant and varying one axis at a time (isolation, execution order, worker count, viewport, network latency, repetition depth), recording a pass/fail count per variation, and testing whether the gap between two conditions exceeds sampling noise. Covers choosing the run count N from the failure rate you need to detect, binomial confidence intervals on a measured reproduction rate, a two-proportion comparison rule…
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
# flake-axis-bisection A non-deterministic test is one that "sometimes pass[es] and sometimes fail[s], without any noticeable change in the code, tests, or environment" ([Fowler, Eradicating Non-Determinism in Tests](https://martinfowler.com/articles/nonDeterminism.html)). That definition is the problem in a nutshell: nothing visible changed, so inspection has nothing to grip. This skill is the experiment that manufactures a visible change. Pick one condition, move it, and see whether the failure rate moves with it. The term "flaky test" is practitioner-emergent, popularized by the Google Testing Blog ([Flaky Tests at Google](https://testing.googleblog.com/2016/05/flaky-tests-at-google-and-how-we.html)); there is no standards-body definition behind it. ## What this owns, and what it does not **Owns:** the empirical protocol. One test, one axis at a time, a counted outcome per variation, and an explicit rule for deciding whether the difference between two counts is signal or noise. **Does not own: the catalog.** A flake-pattern catalog (for example `flake-pattern-reference`) classifies a flake by *inspection*: read the …
Read the whole file at its exact version.
How to install
mdr add testland/qa/flake-axis-bisection@sha256:5c7451166d816b46The line at the top of this page pins the label git:20260725.4f623d0, 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_7ysa6g7rmkq5w57h)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 19, 2026 and Jul 25, 2026, about one every 6 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260725.4f623d0 latest | 2026-07-25 | 4f623d0 | 18,629 B | A | view · diff |
| git:20260719.364dc50 | 2026-07-19 | 364dc50 | 21,969 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 (18629 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
testland/qa · 11 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7ysa6g7rmkq5w57h GET https://markdownregistry.com/api/v1/resolve?ref=testland/qa/flake-axis-bisection GET https://markdownregistry.com/api/v1/blob/5c7451166d816b46c4803e715db2dcbfd7dbd86ac89bbfc42e9a932807a30f09
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.