nw-agent-builder

nw-agent-builder is an agent for coding agents from nWave-ai/nWave. It costs 0 tokens per session (348 once invoked), scanned A, original, MIT.

An AI-agent design and review specialist for creating agents, checking their specifications, and refining command definitions.

In plain words
What is it for?
Use it to create or validate agents, design their workflows and skills, test them—including against prompt-injection attempts—and shorten oversized command files.
Why use it?
It helps turn broad requirements into focused agent instructions and identifies problems in quality, testing, safety, and compatibility with Claude Code practices.

Agent

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/nwave-ai/nwave/nw-agent-builder
Clone the repo
git clone --depth 1 https://github.com/nWave-ai/nWave

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 nw-agent-builder

README.md
[![agentmods](https://agentmods.dev/badge/agents/nwave-ai/nwave/nw-agent-builder.svg)](https://agentmods.dev/agents/nwave-ai/nwave/nw-agent-builder)
Your own site
<a href="https://agentmods.dev/agents/nwave-ai/nwave/nw-agent-builder"><img src="https://agentmods.dev/badge/agents/nwave-ai/nwave/nw-agent-builder.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 348 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 $0.00000 $0.00348
Opus 5 $0.00000 $0.00174
Sonnet 5 $0.00000 $0.00070
Haiku 4.5 $0.00000 $0.00035

Measured 4d ago against content hash a96c5577fa8a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

nw-agent-builder 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 4d 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/reference/agents/nw-agent-builder.md · 22 lines

What it actually says

nw-agent-builder

Use when creating new AI agents, validating agent specifications, optimizing command definitions, or ensuring compliance with Claude Code best practices. Creates focused, research-validated agents (200-400 lines) with Skills for domain knowledge. Also optimizes bloated command files into lean declarative definitions.

Wave: Other Model: inherit Max turns: 0 Tools: Read, Write, Edit, Glob, Grep, Task

Commands

Skills

  • nw-ab-critique-dimensions — Review dimensions for validating agent quality - template compliance, safety, testing, and priority validation
  • nw-agent-creation-workflow — Detailed 5-phase workflow for creating agents - from requirements analysis through validation and iterative refinement
  • nw-agent-testing — 5-layer testing approach for agent validation including adversarial testing, security validation, and prompt injection resistance
  • nw-command-design-patterns — Best practices for command definition files - size targets, declarative template, anti-patterns, and canonical examples based on research evidence
  • nw-command-optimization-workflow — Step-by-step workflow for converting bloated command files to lean declarative definitions
  • nw-design-patterns — 7 agentic design patterns with decision tree for choosing the right pattern for each agent type
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. 4d ago First seen · 22 lines · 0 tokens per session scan A a96c5577fa8a

Subscribe to this mod's changes

nw-agent-builder is an agent published in the GitHub repository nWave-ai/nWave (603 stars, last pushed 4d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 348 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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