best-practices SKILL.md skillA

best-practices from sd0xdev/sd0x-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sd0xdev/sd0x-harness/best-practices@git:20260905.3d84d94

Pins git:20260905.3d84d94 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sd0xdev/sd0x-harness
Path
skills/best-practices/SKILL.md
Versions recorded
5
Latest version
git:20260905.3d84d94, committed Sep 5, 2026
First version recorded
Mar 25, 2026
Size
10,081 bytes
Repository stars
194
License
MIT

Industry best practices conformance audit with mandatory adversarial debate. Produces audit artifact: verdict (OK/WARN/FAIL) + gap roadmap + debate proof. Use when: auditing current implementation against industry standards, checking compliance with best practices, benchmarking implementation quality, verifying a codebase meets a standard. Not for: broad research/discovery without audit target (use /deep-research), code review (use /codex-review), architecture design (use /codex-architect).

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

# Best Practices Audit

## Supplementary Agent

Dispatch performance dimension analysis:

Agent({
  description: "Analyze performance-related best practices compliance",
  subagent_type: "performance-optimizer",
  prompt: `Analyze codebase for performance best practices related to: <topic>
Check for N+1 queries, memory leaks, blocking operations, and caching issues.`
})

## Non-Negotiable Rules (Normative Source)

> **SKILL.md is the normative source for these rules.** Reference files elaborate but do not override.

| # | Rule | Violation = |
|---|------|-------------|
| 1 | **Phase 0 Comprehension Gate**: Before any Phase 1–4 investigative call, output the audit plan block (see command definition) | Audit invalid |
| 2 | Phase 3 **must** invoke `/codex-brainstorm` via Skill tool — a raw transport debate is **invalid** | Audit invalid |
| 3 | Phase 4 **must** include `Debate threadId` (non-empty, from Phase 3 session) | Report rejected |
| 4 | Phase 4 **must** include `Debate Conclusion` referencing specific Phase 3 rounds (not blank, not placeholder) | Report rejected |

## Trigger
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sd0xdev/sd0x-harness/best-practices@sha256:08cb8f5ced33a1e5

The line at the top of this page pins the label git:20260905.3d84d94, 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_o6fj54zezy7kiejm.svg)](https://markdownregistry.com/a/art_o6fj54zezy7kiejm)

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

Versions

The registry has recorded 5 versions of this file, between Mar 25, 2026 and Sep 5, 2026, about one every 41 days.

versioncommittedcommitsizeaudit
git:20260905.3d84d94 latest2026-09-05 3d84d94 10,081 BA view · diff
git:20260726.96786d12026-07-26 96786d1 10,420 BA view · diff
git:20260325.1d72c672026-03-25 1d72c67 9,690 BA view · diff
git:20260325.4af35bf2026-03-25 4af35bf 9,639 BA view · diff
git:20260325.56d31142026-03-25 56d3114 9,143 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 (10081 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

sd0xdev/sd0x-harness · 194 stars · license MIT · pushed 2026-10-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_o6fj54zezy7kiejm
GET https://markdownregistry.com/api/v1/resolve?ref=sd0xdev/sd0x-harness/best-practices
GET https://markdownregistry.com/api/v1/blob/08cb8f5ced33a1e539205137e070f939b8bc52baf6a7dd95ebba9d92e0b90495

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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Every file in sd0xdev/sd0x-harness

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