live-preview SKILL.md skillA

live-preview from sethgammon/citadel is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sethgammon/citadel/live-preview@git:20260611.0f3f8e7

Pins git:20260611.0f3f8e7 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sethgammon/citadel
Path
skills/live-preview/SKILL.md
Versions recorded
5
Latest version
git:20260611.0f3f8e7, committed Jun 11, 2026
First version recorded
Mar 29, 2026
Size
6,525 bytes
Repository stars
927
License
MIT

Mid-build visual verification loop. Takes screenshots of components during construction, not just after. Catches visual regressions and invisible features before they compound. Requires Playwright or similar screenshot tool.

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

# /live-preview — Build-Verify-Fix Loop

## Prerequisites

This skill requires a screenshot tool. Supported:
- **Playwright** (recommended): `npx playwright screenshot [url] [output.png]`
- **Puppeteer**: via a small script
- **Any tool that takes a URL and produces a screenshot**

If no screenshot tool is available, this skill will tell you what to install and exit.

## When to Use

- Any time .tsx, .jsx, .vue, .svelte, or .html files are modified
- After component creation or replacement
- During visual redesign campaigns
- When Archon or Marshal delegate UI work

## Protocol

### Step 1: DETECT

Determine what needs visual verification:

1. Check which files were modified in the current session/phase
2. Filter to view-layer files (.tsx, .jsx, .vue, .svelte, .html, .css)
3. **If no view-layer files found**: exit early with message
   "No view-layer files modified. Nothing to preview." Skip Steps 2-5.
   This is expected for non-UI repos (CLI tools, libraries, agent harnesses).
4. Map each modified file to a route or URL where it renders:
   - If the project has a route manifest or sitemap, use it
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sethgammon/citadel/live-preview@sha256:baed4aabf828a9da

The line at the top of this page pins the label git:20260611.0f3f8e7, 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_oebyvdeebqunhmu5.svg)](https://markdownregistry.com/a/art_oebyvdeebqunhmu5)

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

Versions

The registry has recorded 5 versions of this file, between Mar 29, 2026 and Jun 11, 2026, about one every 19 days.

versioncommittedcommitsizeaudit
git:20260611.0f3f8e7 latest2026-06-11 0f3f8e7 6,525 BA view · diff
git:20260611.a6479532026-06-11 a647953 6,512 BA view · diff
git:20260601.837bc6a2026-06-01 837bc6a 6,431 BA view · diff
git:20260503.631b94d2026-05-03 631b94d 6,069 BA view · diff
git:20260329.6c378a22026-03-29 6c378a2 6,036 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 (6525 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

sethgammon/citadel · 927 stars · license MIT · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_oebyvdeebqunhmu5
GET https://markdownregistry.com/api/v1/resolve?ref=sethgammon/citadel/live-preview
GET https://markdownregistry.com/api/v1/blob/baed4aabf828a9daeaa99ccdb962aad1c02c1d5df6609818d4a6494dccf66a4d

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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