creating-agents

creating-agents is an agent for Claude Code from bobmatnyc/claude-mpm. It costs 0 tokens per session (3,429 once invoked), scanned A, original, no licence file.

A step-by-step guide for creating custom AI agents for coding work.

In plain words
What is it for?
Use it when building a new agent and deciding how to structure its instructions and behaviour.
Why use it?
It gives you a defined process to follow instead of requiring you to design an agent from scratch.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

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.

agentmods
npx agentmods add agents/bobmatnyc/claude-mpm/creating-agents
Clone the repo
git clone --depth 1 https://github.com/bobmatnyc/claude-mpm

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 creating-agents

README.md
[![agentmods](https://agentmods.dev/badge/agents/bobmatnyc/claude-mpm/creating-agents.svg)](https://agentmods.dev/agents/bobmatnyc/claude-mpm/creating-agents)
Your own site
<a href="https://agentmods.dev/agents/bobmatnyc/claude-mpm/creating-agents"><img src="https://agentmods.dev/badge/agents/bobmatnyc/claude-mpm/creating-agents.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,429 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00000 $0.03429
Opus 5 $0.00000 $0.01715
Sonnet 5 $0.00000 $0.00686
Haiku 4.5 $0.00000 $0.00343

Measured 6d ago against content hash ff5160f8fd36, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

creating-agents scanned grade A with 0 findings 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 6d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

docs/agents/creating-agents.md · 704 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 6d ago First seen · 704 lines · 0 tokens per session scan A ff5160f8fd36

Subscribe to this mod's changes

creating-agents is an agent published in the GitHub repository bobmatnyc/claude-mpm (150 stars, last pushed 5d ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 3,429 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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