add-agent

add-agent is a skill for Claude Code from jmagly/aiwg. It costs 16 tokens per session (1,487 once invoked), scanned A, original, MIT.

A scaffolding tool for adding a new agent definition to an existing add-on or framework. Scaffolding means creating the initial files and structure from a chosen template.

In plain words
What is it for?
Use it to add simple, complex, orchestrating, or validating agents, either with command options or through an interactive setup.
Why use it?
It removes the need to create agent files and settings by hand. It can guide you when the destination, name, or agent type is not yet clear.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: mentions subagents.

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 skills/jmagly/aiwg/add-agent
Any agent
npx skills add jmagly/aiwg --skill add-agent
Clone the repo
git clone --depth 1 https://github.com/jmagly/aiwg

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 add-agent

README.md
[![agentmods](https://agentmods.dev/badge/skills/jmagly/aiwg/add-agent.svg)](https://agentmods.dev/skills/jmagly/aiwg/add-agent)
Your own site
<a href="https://agentmods.dev/skills/jmagly/aiwg/add-agent"><img src="https://agentmods.dev/badge/skills/jmagly/aiwg/add-agent.svg" alt="Measured on agentmods" height="20"></a>
Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,487 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00016 $0.01487
Opus 5 $0.00008 $0.00744
Sonnet 5 $0.00003 $0.00297
Haiku 4.5 $0.00002 $0.00149

Measured 6d ago against content hash 46d27d9a45e4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

add-agent 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.

agentic/code/addons/aiwg-utils/skills/add-agent/SKILL.md · 213 lines

How it starts

The opening of the file, as written. The whole thing — 213 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Add Agent

Scaffold a new agent definition file inside an existing addon or framework.

Triggers

Alternate expressions and non-obvious activations (primary phrases are matched automatically from the skill description):

  • "I need a new agent" → scaffold agent in specified target
  • "build me an agent" → scaffold agent with interactive guidance
  • "write an agent for X" → scaffold agent named after the described role
  • "agent for " → derive name from role, prompt for target

Trigger Patterns Reference

Pattern Example Action
Named add "add agent security-auditor --to sdlc-complete" Scaffold directly
Role description "create an agent that reviews PRs" Derive name, scaffold
Interactive "add agent --interactive" Guided mode, ask for name/target/template
Target omitted "add agent code-reviewer" Ask which addon or framework

Process

1. Parse Arguments

Extract from $ARGUMENTS:

  • <name> — kebab-case agent name (required)
  • --to <target> — addon or framework directory name (required)
  • --template <type> — one of simple (default), complex, orchestrator, validator
  • --interactive — enable guided design questions

If either <name> or --to is missing, ask before proceeding.

2. Validate Target

Confirm the target addon or framework exists:

# Check addons
ls agentic/code/addons/<target>/

# Check frameworks
ls agentic/code/frameworks/<target>/

If not found, report available targets and stop.

3. Interactive Design (if --interactive)

Ask the following before generating:

  1. Role: What is this agent's primary role?
  2. Expertise: What domains or technologies does it specialize in?
  3. Responsibilities: What are its 3-5 key responsibilities?
  4. Tools needed: Which tools does it require? (Read, Write, Bash, Grep, WebFetch, Task)
  5. Model tier: haiku (fast/utility), sonnet (balanced), opus (reasoning-heavy)
  6. Output format: What structured output should it produce?

Read the full file on GitHub · 213 lines

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 · 213 lines · 16 tokens per session scan A 46d27d9a45e4

Subscribe to this mod's changes

add-agent is a skill published in the GitHub repository jmagly/aiwg (209 stars, last pushed today), licensed MIT. It adds 16 tokens to every session and 1,487 once invoked, about $0.0001 per session on Opus 5. 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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