subagent-creator

subagent-creator is a skill for Claude Code from idoforgod/Dissertation-Simulator-AgenticWorkflow. It costs 55 tokens per session (1,769 once invoked), scanned B, original, MIT.

A meta-skill that creates definition files for specialized Claude Code sub-agents. These files describe an agent’s expertise, available tools, model choice, and behavior.

In plain words
What is it for?
Used to create research agents, utility agents, or groups of related agents for larger workflows.
Why use it?
It provides a structured way to create task-specific agents with appropriate instructions and safeguards.

Skill for Claude Code

Written for Claude Code: PostToolUse hook event. Also seen: reads .claude/ paths; mentions subagents; mentions Claude Code.

Good fit Used to create research agents, utility agents, or groups of related agents for larger workflows.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/idoforgod/dissertation-simulator-agenticworkflow/subagent-creator
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add idoforgod/Dissertation-Simulator-AgenticWorkflow --skill subagent-creator
Clone the repo
git clone --depth 1 https://github.com/idoforgod/Dissertation-Simulator-AgenticWorkflow

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for subagent-creator

README.md
[![agentmods](https://agentmods.dev/badge/skills/idoforgod/dissertation-simulator-agenticworkflow/subagent-creator/github.svg)](https://agentmods.dev/skills/idoforgod/dissertation-simulator-agenticworkflow/subagent-creator)
Your own site
<a href="https://agentmods.dev/skills/idoforgod/dissertation-simulator-agenticworkflow/subagent-creator"><img src="https://agentmods.dev/badge/skills/idoforgod/dissertation-simulator-agenticworkflow/subagent-creator/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for subagent-creator

Your own site · 80×15
<a href="https://agentmods.dev/skills/idoforgod/dissertation-simulator-agenticworkflow/subagent-creator"><img src="https://agentmods.dev/badge/skills/idoforgod/dissertation-simulator-agenticworkflow/subagent-creator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,769 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00055 $0.01769
Opus 5.5 $0.00022 $0.00708
Sonnet 5.5 $0.00011 $0.00354
Haiku 4.5 $0.00006 $0.00177

Measured 2mo ago against content hash fd5fc1bb62cf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

subagent-creator scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks the agent to reveal its instructionsmediumSystem prompt leakage

Directions to print, repeat or translate the system prompt extract configuration the operator did not intend to expose.

- **Output instructions for user-facing text**: Include Korean translation directive
.claude/skills/subagent-creator/SKILL.md · 190 lines

How it starts

The opening of the file, as written. The whole thing — 190 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sub-Agent Creator — Meta-Skill for Generating Agent Definitions

A meta-skill that produces Claude Code agent .md files. It designs agents with appropriate expertise, tool access, behavioral rules, and quality requirements following AgenticWorkflow conventions.

When to Use

  • User asks to create a new agent for a specific task
  • System needs to generate agents for a workflow (e.g., thesis agents)
  • Batch creation of multiple related agents

Inherited DNA

This meta-skill inherits the AgenticWorkflow genome. As a skill that generates agents, it must itself embody the DNA it enforces.

DNA Component Expression in subagent-creator
Absolute Criteria 1 (Quality) Generated agents use optimal model selection (opus for research, sonnet for utility)
Absolute Criteria 2 (SOT) Generated agents respect single-writer SOT pattern; guard_sot_write.py compatibility
Absolute Criteria 3 (CCP) Research agents include GRA compliance; utility agents document CCP exemption rationale
English-First All agent instructions are in English
P1 Compliance Research agents include GroundedClaim schema + Hallucination Firewall
Quality Gates Research agents integrate with validate_grounded_claim.py PostToolUse hook

Agent File Schema

Agent definitions live in .claude/agents/ and follow this structure:

---
name: {agent-name}           # kebab-case
description: {brief description}
model: opus                   # opus | sonnet | haiku
tools: Read, Write, Glob, Grep  # comma-separated tool list
maxTurns: {N}                 # max reasoning turns (default: 20)
memory: project               # project | none
---

{Agent behavioral instructions in English}

Generation Protocol

Step 1: Agent Design Analysis

Determine the agent's requirements:

  1. Primary task: What is the agent's core responsibility?
  2. Expertise domain: What specialized knowledge does it need?
  3. Input/Output: What does it receive and produce?
  4. Quality criteria: What makes a good output for this agent?
  5. Tool needs: Which tools does it require?

Read the full file on GitHub · 190 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 190 lines · 55 tokens per session scan B fd5fc1bb62cf

Subscribe to this mod's changes

subagent-creator is a skill published in the GitHub repository idoforgod/Dissertation-Simulator-AgenticWorkflow (108 stars, last pushed 5mo ago), licensed MIT. It adds 55 tokens to every session and 1,769 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks the agent to reveal its instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

subagent-creator compared with skills from other repositories

subagent-creator next to 6 skills from other repositories
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