feature-dev SKILL.md skillA
feature-dev from sd0xdev/sd0x-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add sd0xdev/sd0x-harness/feature-dev@git:20261006.c9a2036Pins git:20261006.c9a2036 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/feature-dev/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261006.c9a2036, committed Oct 6, 2026
- First version recorded
- Apr 4, 2026
- Size
- 8,604 bytes
- Repository stars
- 194
- License
- MIT
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.
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
# Feature Development Skill
## Trigger
- Keywords: develop feature, implement, write code, verify, precommit, refactor, simplify
## When NOT to Use
- Just want to understand code (use Explore)
- Review code only (use codex-code-review)
- Review documents only (use doc-review)
- Pure test-only tasks without feature changes (use `/codex-test-review` directly)
## Prohibited Actions
```
❌ git add | git commit | git push — per @rules/git-workflow.md
```
This skill implements features but does **not** commit. `/precommit` is a quality gate only. To commit, offer the menu per `rules/git-workflow.md` § Proactive Offer — a commit option on any real branch, a push option only where `review-state.js offer` allows one — and invoke `/smart-commit --execute` on selection; never print the command for the user to copy.
<budget:token_budget>200000</budget:token_budget>
## Workflow
```
Requirements → Design → Implement → Test + Review → Precommit Gate → Doc Sync
│ │ │ │ │
▼ ▼ ▼ ▼ ▼
…Read the whole file at its exact version.
How to install
mdr add sd0xdev/sd0x-harness/feature-dev@sha256:eb7eddbef3bbe729The line at the top of this page pins the label git:20261006.c9a2036, 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.
[](https://markdownregistry.com/a/art_nspzn3yw2d5fzt6m)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Apr 4, 2026 and Oct 6, 2026, about one every 31 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261006.c9a2036 latest | 2026-10-06 | c9a2036 | 8,604 B | A | view · diff |
| git:20260925.3600370 | 2026-09-25 | 3600370 | 8,058 B | A | view · diff |
| git:20260905.e7ebc99 | 2026-09-05 | e7ebc99 | 7,854 B | A | view · diff |
| git:20260905.1599675 | 2026-09-05 | 1599675 | 7,898 B | A | view · diff |
| git:20260905.6131871 | 2026-09-05 | 6131871 | 7,448 B | A | view · diff |
| git:20260811.d9a8bca | 2026-08-11 | d9a8bca | 6,911 B | A | view · diff |
| git:20260404.086743b | 2026-04-04 | 086743b | 6,079 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 (8604 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
sd0xdev/sd0x-harness · 194 stars · license MIT · pushed 2026-10-08 · 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/eb7eddbef3bbe7294ca800f211d7d9ebd4a7899d01981d5741a47064676fbe9e
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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