subagent-driven-development SKILL.md skillA

subagent-driven-development from a5c-ai/babysitter is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add a5c-ai/babysitter/subagent-driven-development@git:20260601.da7723a

Pins git:20260601.da7723a in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
a5c-ai/babysitter
Path
library/methodologies/superpowers/skills/subagent-driven-development/SKILL.md
Versions recorded
5
Latest version
git:20260601.da7723a, committed Jun 1, 2026
First version recorded
Mar 25, 2026
Size
1,278 bytes
Repository stars
1,891
License
MIT

Use when executing implementation plans with independent tasks in the current session. Dispatches fresh subagent per task.

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

- Want to stay in current session
- Want automatic review checkpoints

## Two-Stage Review

1. **Spec Compliance** - Did they build what was requested? (nothing more, nothing less)
2. **Code Quality** - Is it well-built? (clean, tested, maintainable)

Spec MUST pass before quality review begins.

## Red Flags

- Never skip either review stage
- Never proceed with unfixed issues
- Never dispatch multiple implementation subagents in parallel
- Never let implementer self-review replace actual review

## Agents Used

- `agents/implementer/` - Fresh subagent per task
- `agents/spec-reviewer/` - Verifies spec compliance
- `agents/code-quality-reviewer/` - Verifies code quality
- `agents/code-reviewer/` - Final review of entire implementation

## Tool Use

Invoke via babysitter process: `methodologies/superpowers/subagent-driven-development`

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add a5c-ai/babysitter/subagent-driven-development@sha256:adfafbb965bcca4e

The line at the top of this page pins the label git:20260601.da7723a, 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_ugkaurjatlixq4te.svg)](https://markdownregistry.com/a/art_ugkaurjatlixq4te)

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

Versions

The registry has recorded 5 versions of this file, between Mar 25, 2026 and Jun 1, 2026, about one every 17 days.

versioncommittedcommitsizeaudit
git:20260601.da7723a latest2026-06-01 da7723a 1,278 BA view · diff
git:20260507.9f5be952026-05-07 9f5be95 1,308 BA view · diff
git:20260507.8dfdcb42026-05-07 8dfdcb4 1,303 BC view · diff
git:20260507.56f011d2026-05-07 56f011d 1,452 BA view · diff
git:20260325.a6b3a882026-03-25 a6b3a88 1,357 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 (1278 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

a5c-ai/babysitter · 1,891 stars · license MIT · pushed 2026-11-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ugkaurjatlixq4te
GET https://markdownregistry.com/api/v1/resolve?ref=a5c-ai/babysitter/subagent-driven-development
GET https://markdownregistry.com/api/v1/blob/adfafbb965bcca4ecfb4b526f543e94613865dad2deeecd42ceb8fc872afd16d

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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