Preventing Subagent Collisions SKILL.md skillA

Preventing Subagent Collisions from rudycity/superagent is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add rudycity/superagent/Preventing Subagent Collisions@v4.0.0

Pins v4.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
rudycity/superagent
Path
.agents/skills/preventing-subagent-collisions/SKILL.md
Versions recorded
4
Latest version
v4.0.0, committed Jul 23, 2026
First version recorded
Jul 17, 2026
Size
9,617 bytes
Repository stars
64
License
MIT

Prevent task duplication, file conflicts, and coordination failures when multiple subagents work in parallel on the same Superagent project. Covers both Superagent→Subagent coordination and Master Agent→Superagent worktree coordination. Uses manage_plan and manage_tasks as the coordination hub.

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

# Preventing Subagent Collisions

## Overview

Two separate collision scenarios exist in the 3-tier architecture. Both must be handled:

| Scenario | Tier | Risk |
|----------|------|------|
| **A — Subagent collision** | Superagent → Subagents | Two subagents claim same task or edit same file within one worktree |
| **B — Worktree collision** | Master Agent → Superagents | Two Superagents in different worktrees both edit shared files (package.json, CHANGELOG.md, AGENTS.md), causing merge conflicts |

**Core principle (both scenarios):** The parent pre-assigns tasks AND file scopes before spawning. Shared files are never touched in parallel — always serialized.

---

## Scenario A — Subagent Collision (Superagent tier)

### The Coordination Model

| File | Purpose | Owner |
|------|---------|-------|
| `_implementation_plan.md` | All tasks, file scopes, agent assignments | Parent (via `manage_plan`) |
| `_task.md` | Active task checklist — status per task | Parent updates; subagents read only |
| `_task_history.md` | Archive of completed tasks | Automatic |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add rudycity/superagent/Preventing Subagent Collisions@sha256:653b5dbc86f563f0

The line at the top of this page pins the label v4.0.0, 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_cepbyozk45tyzvhi.svg)](https://markdownregistry.com/a/art_cepbyozk45tyzvhi)

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

Versions

The registry has recorded 4 versions of this file, between Jul 17, 2026 and Jul 23, 2026, about one every 2 days.

versioncommittedcommitsizeaudit
v4.0.0 latest2026-07-23 3c5653a 9,617 BA view · diff
v4.0.02026-07-17 5dfa635 9,682 BA view · diff
v3.0.02026-07-17 3c9bc9d 9,293 BA view · diff
v3.0.02026-07-17 9cf67de 8,814 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 (9617 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

rudycity/superagent · 64 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_cepbyozk45tyzvhi
GET https://markdownregistry.com/api/v1/resolve?ref=rudycity/superagent/Preventing Subagent Collisions
GET https://markdownregistry.com/api/v1/blob/653b5dbc86f563f05397fd73a40b10fd6a97d7d468ab7f7a4339ee9a3c00aa0f

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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