prototype SKILL.md skillA

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

Install it, pinned
mdr add firzus/agent-skills/prototype@git:20261102.3c649de

Pins git:20261102.3c649de in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
firzus/agent-skills
Path
skills/stack/prototype/SKILL.md
Versions recorded
2
Latest version
git:20261102.3c649de, committed Nov 2, 2026
First version recorded
Nov 1, 2026
Size
3,332 bytes
Repository stars
4
License
MIT

Answer a design or feasibility question with the smallest observable experiment, such as comparing interface variants, exercising domain rules, or measuring a technical limit. Use when a decision needs observed behavior rather than more discussion or source research; not for building the settled feature.

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 decision

Build the smallest experiment that answers one question in a representative
environment. A prototype produces evidence for a decision, not a production
feature, and its approval says nothing about production reliability.

## 1. Bound the question

State the question, the decision it informs, the scenarios to observe, and the
evidence that will end the experiment. Separate what can be measured, which you
settle yourself, from what needs the user's judgment, such as which variant feels
clearer. If source evidence alone would answer it, research instead; if the
behavior is already settled, show the evidence and stop.

## 2. Build it where it counts

Reuse the real product, components, and data shape as far as the question needs:
isolated logic cannot show real rendering, device interaction, or performance.
Work on a dedicated branch, `prototype/<subject>`, without disturbing the user's
checkout or uncommitted work. Run it on a copy of the data or on fixtures, with
external services simulated, and label every simulated dependency; an experiment
that needs a real external effect asks the user first.

| Question about | Build and observe |
| --- | --- |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add firzus/agent-skills/prototype@sha256:c9736688e831c3b3

The line at the top of this page pins the label git:20261102.3c649de, 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_vwbvobj2zclodmr5.svg)](https://markdownregistry.com/a/art_vwbvobj2zclodmr5)

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

Versions

The registry has recorded 2 versions of this file, between Nov 1, 2026 and Nov 2, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20261102.3c649de latest2026-11-02 3c649de 3,332 BA view · diff
git:20261101.951d6502026-11-01 951d650 3,159 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 (3332 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

firzus/agent-skills · 4 stars · license MIT · pushed 2026-11-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_vwbvobj2zclodmr5
GET https://markdownregistry.com/api/v1/resolve?ref=firzus/agent-skills/prototype
GET https://markdownregistry.com/api/v1/blob/c9736688e831c3b3006ed6dcfc8304062089fbaed9299b5818c5048fd0b4529b

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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