askit-build-subagent SKILL.md skillA

askit-build-subagent from product-on-purpose/agent-skills-toolkit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add product-on-purpose/agent-skills-toolkit/askit-build-subagent@v0.2.3

Pins v0.2.3 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
product-on-purpose/agent-skills-toolkit
Path
skills/askit-build-subagent/SKILL.md
Versions recorded
5
Latest version
v0.2.3, committed Oct 24, 2026
First version recorded
Aug 11, 2026
Size
4,030 bytes
Repository stars
3
License
Apache-2.0

Creates and improves Claude subagents (agents/<name>.md) to the Advanced Skill Library Standard. Use when you need to author a new subagent, scaffold an agents/ delegate, declare its tools and chain, or raise an existing subagent's conformance.

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

# askit-build-subagent

## Purpose
Author conformant subagents. Two modes: `create` scaffolds a new `agents/<name>.md` (frontmatter + role body); `improve` raises an existing subagent toward the quality bar. Subagents are Claude-only for plugin distribution (Codex v0.135 plugins cannot ship `[agents.*]`; Standard sec 3.3), so this skill emits no Codex artifact. Authoring depth is in [references/authoring-subagents.md](references/authoring-subagents.md).

## When to use
When the user asks to create, scaffold, write, or improve a subagent (an `agents/<name>.md` delegate).

## create mode
1. Brief interview: ask for the subagent name (kebab-case), the bounded job it owns, the narrowest tools it needs, and which components (if any) it may invoke. Skip the interview if these inputs are already in context.
2. Copy `templates/agent.md` into `agents/<name>.md`.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add product-on-purpose/agent-skills-toolkit/askit-build-subagent@sha256:2a504571ca01259b

The line at the top of this page pins the label v0.2.3, 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_mm3fq4ihry375reh.svg)](https://markdownregistry.com/a/art_mm3fq4ihry375reh)

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

Versions

The registry has recorded 5 versions of this file, between Aug 11, 2026 and Oct 24, 2026, about one every 18 days.

versioncommittedcommitsizeaudit
v0.2.3 latest2026-10-24 443ab54 4,030 BA view · diff
v0.2.22026-09-28 2207129 4,009 BA view · diff
v0.2.12026-09-17 3f57748 3,726 BA view · diff
v0.2.02026-08-12 69810cc 3,719 BA view · diff
v0.1.02026-08-11 ad507e2 3,051 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 (4030 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

product-on-purpose/agent-skills-toolkit · 3 stars · license Apache-2.0 · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_mm3fq4ihry375reh
GET https://markdownregistry.com/api/v1/resolve?ref=product-on-purpose/agent-skills-toolkit/askit-build-subagent
GET https://markdownregistry.com/api/v1/blob/2a504571ca01259bd1ba8a752d1588973fe44b935b2b6ef01699fd9cb8385faf

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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