sd0xdev/sd0x-harness · skills/feature-dev/SKILL.md

feature-dev skillA

feature-dev is agent-read markdown (skill) from sd0xdev/sd0x-harness: Feature development workflow. Use when: implementing features, writing code, running dev loop. Not for: understanding code (use code-explore), reviewing code (use codex-code-review). Output: implemented feature + tests + review gate..

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.

How to install

Latest version
mdr add sd0xdev/sd0x-harness/feature-dev@git:20260905.e7ebc99
Exact content
mdr add sd0xdev/sd0x-harness/feature-dev@sha256:422d9dc502cd0dd6

Pin 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_nspzn3yw2d5fzt6m.svg)](https://markdownregistry.com/a/art_nspzn3yw2d5fzt6m)

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Versions

versioncommittedcommitsizeaudit
git:20260905.e7ebc99 latest2026-09-05 e7ebc99 7,854 BA view · diff
git:20260905.15996752026-09-05 1599675 7,898 BA view · diff
git:20260905.61318712026-09-05 6131871 7,448 BA view · diff
git:20260811.d9a8bca2026-08-11 d9a8bca 6,911 BA view · diff
git:20260404.086743b2026-04-04 086743b 6,079 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (7854 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 · 188 stars · license MIT · pushed 2026-09-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_nspzn3yw2d5fzt6m
GET https://markdownregistry.com/api/v1/resolve?ref=sd0xdev/sd0x-harness/feature-dev
GET https://markdownregistry.com/api/v1/blob/422d9dc502cd0dd6ffebc67d96e22ac79e50bd6066fc462f0f1c205ced1fb900