richfrem/agent-plugins-skills · plugins/agent-scaffolders/skills/create-sub-agent/SKILL.md

create-sub-agent skillA

create-sub-agent is agent-read markdown (skill) from richfrem/agent-plugins-skills: Scaffolds a new autonomous sub-agent with its own prompt, system instructions, and tool permissions. Enforces modern architectural guidance: sub-agents are reserved for isolated execution contexts, strict tool sandboxing, or adversarial personas. NOT for simple procedural skills (use `create-skill`) and NEVER for pointer-wrapper stubs that merely delegate to a skill..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add richfrem/agent-plugins-skills/create-sub-agent@git:20260905.1c3b5a5
Exact content
mdr add richfrem/agent-plugins-skills/create-sub-agent@sha256:d8c6e2339ac5c076

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_elpcm6b3qmhdpdzj.svg)](https://markdownregistry.com/a/art_elpcm6b3qmhdpdzj)

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Versions

versioncommittedcommitsizeaudit
git:20260905.1c3b5a5 latest2026-09-05 1c3b5a5 4,692 BA view · diff
git:20260628.325c1b72026-06-28 325c1b7 2,891 BA view · diff
git:20260511.478d3cb2026-05-11 478d3cb 2,694 BA view · diff
git:20260511.d9da0562026-05-11 d9da056 2,464 BA view · diff
git:20260427.a7c1e492026-04-27 a7c1e49 1,980 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (4692 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

richfrem/agent-plugins-skills · 6 stars · license MIT · pushed 2026-09-07 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_elpcm6b3qmhdpdzj
GET https://markdownregistry.com/api/v1/resolve?ref=richfrem/agent-plugins-skills/create-sub-agent
GET https://markdownregistry.com/api/v1/blob/d8c6e2339ac5c076e324abefeeb26c346faef567d83a4fbce94e28a05d187362