prototype SKILL.md skillA

prototype from chrislacey89/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add chrislacey89/skills/prototype@git:20260618.9e506b1

Pins git:20260618.9e506b1 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
chrislacey89/skills
Path
prototype/SKILL.md
Versions recorded
2
Latest version
git:20260618.9e506b1, committed Jun 18, 2026
First version recorded
May 12, 2026
Size
7,100 bytes
Repository stars
4
License
MIT

Build a throwaway prototype to flush out a question before committing to it. Routes between three branches — a runnable terminal app for state/business-logic questions (LOGIC), several radically different UI variations toggleable from one route (UI), or a focused spike that gives a binary verdict on whether a technical assumption holds (FEASIBILITY). Use when the user wants to prototype, sanity-check a data model or state machine, mock up a UI, explore design options, verify an `Uncertain`…

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

# Prototype

A prototype is **throwaway code that answers a question**. The question decides the shape.

> **Forked from Matt Pocock's `/prototype` on 2026-05-11; kit-owned for iteration.** The LOGIC and UI branches are unchanged from upstream. The FEASIBILITY branch is a kit addition so `/research` and `/execute` can name a discharge route for `Uncertain` assumptions that are cheaply verifiable by code.

## Pick a branch

Identify which question is being answered — from the user's prompt, the surrounding code, or by asking if the user is around:

- **"Does this logic / state model feel right?"** → [LOGIC.md](LOGIC.md). Build a tiny interactive terminal app that pushes the state machine through cases that are hard to reason about on paper.
- **"What should this look like?"** → [UI.md](UI.md). Generate several radically different UI variations on a single route, switchable via a URL search param and a floating bottom bar.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add chrislacey89/skills/prototype@sha256:4609712b4677d3b7

The line at the top of this page pins the label git:20260618.9e506b1, 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_hhonj6yenp6kqsst.svg)](https://markdownregistry.com/a/art_hhonj6yenp6kqsst)

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

Versions

The registry has recorded 2 versions of this file, between May 12, 2026 and Jun 18, 2026, about one every 38 days.

versioncommittedcommitsizeaudit
git:20260618.9e506b1 latest2026-06-18 9e506b1 7,100 BA view · diff
git:20260512.e42eec12026-05-12 e42eec1 5,347 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 (7100 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

chrislacey89/skills · 4 stars · license MIT · pushed 2026-11-06 · branch prod

API

GET https://markdownregistry.com/api/v1/artifacts/art_hhonj6yenp6kqsst
GET https://markdownregistry.com/api/v1/resolve?ref=chrislacey89/skills/prototype
GET https://markdownregistry.com/api/v1/blob/4609712b4677d3b70aaa0f132f418268071f42722556d6e01cea85b01719162c

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 chrislacey89/skills

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