parity-guard-test-pattern skillA
parity-guard-test-pattern is agent-read markdown (skill) from fabioc-aloha/alex_skill_mall: When checking that all callers of a contract implement it correctly, you get false positives from wrapper delegators:.
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
# Parity Guard Test Pattern
## The Problem
When checking that all callers of a contract implement it correctly, you get false positives from wrapper delegators:
```javascript
// Contract: "All files that call exec() must handle exit code 2"
// Direct caller — MUST implement contract
execFileSync('node', [script]); // Must handle exit code
// Delegator — calls wrapper that already handles contract
runMuscle(script); // runMuscle handles exit code internally
```
Testing both the same way creates noise.
## The Solution
Split tests into DIRECT callers and DELEGATION callers.
```javascript
// parity-guard.test.js
const directCallers = findFiles((content) =>
content.includes("child_process") &&
/exec(File)?Sync|spawn/.test(content)
);
const wrapperCallers = findFiles((content) =>
/runMuscle|muscleAndPrompt|executeScript/.test(content)
);
describe('Contract: exit code handling', () => {
describe('Direct callers (must implement)', () => {
directCallers.forEach(file => {
it(`${file} handles exit code 2`, () => {
const content = fs.readFileSync(file, 'utf8');
expect(content).toMatch(/exitCode|status|code.*===?\s*2/);
});
});
});
…Read the whole file at its exact version.
How to install
mdr add fabioc-aloha/alex_skill_mall/parity-guard-test-pattern@git:20260728.80a7ab6mdr add fabioc-aloha/alex_skill_mall/parity-guard-test-pattern@sha256:1f0213dd72d63ee7Pin 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_nll2dmbuxlkgn53t)
1 badge views in 30 days
Versions
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 (2503 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
fabioc-aloha/alex_skill_mall · 4 stars · license MIT · pushed 2026-09-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_nll2dmbuxlkgn53t GET https://markdownregistry.com/api/v1/resolve?ref=fabioc-aloha/alex_skill_mall/parity-guard-test-pattern GET https://markdownregistry.com/api/v1/blob/1f0213dd72d63ee7484a18b98dd43542f5e5bdfa56c3c77776c6c3985166297c
Your agent 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.