sniper-testing SKILL.md skillA

sniper-testing from tcuzzo/backs-aios-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add tcuzzo/backs-aios-skills/sniper-testing@git:20260828.045e846

Pins git:20260828.045e846 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
tcuzzo/backs-aios-skills
Path
i18n/de/skills/sniper-testing/SKILL.md
Versions recorded
3
Latest version
git:20260828.045e846, committed Aug 28, 2026
First version recorded
Aug 27, 2026
Size
3,851 bytes
Repository stars
2
License
a license file GitHub does not identify

Für jede Fix- oder Build-Schleife, und bevor du irgendeinem grünen Test traust. Fährt nur die Tests, die abdecken, was du angefasst hast, und killt Mock-Theater — Tests, die bestehen, während die Fähigkeit kaputt ist. Trigger words: sniper testing, scoped tests, test scope, mock theater, fake green, full suite, test bloat, gezielte Tests, Test-Scope, falsches Grün, ganze Suite, Test-Blähung.

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

# Sniper Testing
**Effort:** free — pure Disziplin, keine zusätzlichen Läufe; senkt die Netto-Kosten unterm Strich, weil sie Voll-Suite-Wiederholungen während der Iteration streicht. Beseitigt: Test-Blähung (Läufe der ganzen Suite für einen winzigen Diff) und die Mock-Theater-Grüns, auf denen du sonst bauen würdest.

## Warum es das gibt

Zwei Fehler-Muster verbrennen die meiste Testzeit. Test-Blähung: die ganze
Suite für eine winzige Änderung fahren. Mock-Theater: Tests, die bestehen,
während die echte Fähigkeit physisch kaputt ist. Dieser Skill killt beides.

## Regel 1 — der Diff definiert den Scope, nicht der Optimismus

Während der Fix/Build-Iterationsschleife ist es dir verboten, die ganze
Test-Suite zu fahren.

1. Fahr `git diff --name-only HEAD`, um exakt zu sehen, welche Dateien du
   angefasst hast.
2. Ordne jeder angefassten Datei die Test-Dateien zu, die sie direkt abdecken
   (z. B. `src/payments/refund.py` → `tests/test_refund.py`).
3. Benenn dein konkretes Test-Ziel, dann fahr NUR diese Dateien
   (Python: `pytest tests/test_refund.py`;
   JS: `npx vitest run tests/refund.test.js`;
   Go: `go test ./payments/ -run TestRefund`).
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add tcuzzo/backs-aios-skills/sniper-testing@sha256:6604a89193ddd82a

The line at the top of this page pins the label git:20260828.045e846, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_2sr6ro5ct2dkl7ub.svg)](https://markdownregistry.com/a/art_2sr6ro5ct2dkl7ub)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Aug 27, 2026 and Aug 28, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20260828.045e846 latest2026-08-28 045e846 3,851 BA view · diff
git:20260827.a68a1ea2026-08-27 a68a1ea 3,845 BA view · diff
git:20260827.e618bb32026-08-27 e618bb3 3,440 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (3851 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

GitHub

tcuzzo/backs-aios-skills · 2 stars · license a license file GitHub does not identify · pushed 2026-11-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_2sr6ro5ct2dkl7ub
GET https://markdownregistry.com/api/v1/resolve?ref=tcuzzo/backs-aios-skills/sniper-testing
GET https://markdownregistry.com/api/v1/blob/6604a89193ddd82abf3625575f68c275da46268aab721cea16a5287c94a22440

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.

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