flaky-test-investigation skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, same audit grade.
flaky-test-investigation is agent-read markdown (skill) from yeaight7/agent-powerups: Use when tests pass and fail intermittently without code changes, or a test passes alone but fails in the full suite..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
## Purpose
Flaky tests erode trust in CI. Do not just re-run them and hope for the best — isolate the flake vector, fix it, and prove the fix with a stress loop.
## When to Use
- A test fails intermittently in CI but passes locally (or vice versa)
- A test passes alone but fails in the full suite
- A re-run "fixed" a failure and nobody knows why
## Inputs
- The flaky test's name/path and the runner command for it
- Recent failing runs, if available, to estimate the failure rate
## Workflow
1. **Isolate the test.** Run the specific failing test by itself. If it passes alone, the flake is likely an **order dependency** or **state leakage** from a previous test — run the suite up to and including it to confirm.
2. **Stress test.** Run the test in a tight loop to establish the failure rate before changing anything:
```bash
for i in {1..100}; do npm test -- -t "My Test" || echo "FAIL on run $i"; done
```
(Adapt the inner command to the project's runner; some runners have repeat flags built in.)
3. **Check the common vectors:**
- **Time** — does the test rely on `Date.now()` or `setTimeout`? Mock the clock.
…Read the whole file at its exact version.
How to install
mdr add yeaight7/agent-powerups/flaky-test-investigation@git:20260606.62e2213mdr add yeaight7/agent-powerups/flaky-test-investigation@sha256:66adc4d3a5e1e4f7Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_jfk74tvwz63rn4xk)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260606.62e2213 latest | 2026-06-06 | 62e2213 | 2,542 B | A | view · diff |
| git:20260602.b0c6a44 | 2026-06-02 | b0c6a44 | 1,172 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 (2542 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
yeaight7/agent-powerups · 6 stars · license Apache-2.0 · pushed 2026-09-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jfk74tvwz63rn4xk GET https://markdownregistry.com/api/v1/resolve?ref=yeaight7/agent-powerups/flaky-test-investigation GET https://markdownregistry.com/api/v1/blob/66adc4d3a5e1e4f75b434bd106495ad3579db33b6b3d47e4d7d7daa77984832a
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