ai-engineer

ai-engineer is an agent for Claude Code from mtarcure/claude-vibe-squad. It costs 17 tokens per session (285 once invoked), scanned A, a copy of accessibility-engineer, MIT.

A lightweight agent definition for an AI engineer whose full instructions are stored in a separate canonical brief.

In plain words
What is it for?
It helps route work involving AI systems and related engineering tasks to the AI engineer role.
Why use it?
It keeps the adapter small while ensuring the role has one maintained source of truth.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

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/mtarcure/claude-vibe-squad/ai-engineer
Clone the repo
git clone --depth 1 https://github.com/mtarcure/claude-vibe-squad

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 ai-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/mtarcure/claude-vibe-squad/ai-engineer.svg)](https://agentmods.dev/agents/mtarcure/claude-vibe-squad/ai-engineer)
Your own site
<a href="https://agentmods.dev/agents/mtarcure/claude-vibe-squad/ai-engineer"><img src="https://agentmods.dev/badge/agents/mtarcure/claude-vibe-squad/ai-engineer.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 285 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 81% copy Near-identical to another mod 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 $0.00017 $0.00285
Opus 5 $0.00009 $0.00143
Sonnet 5 $0.00003 $0.00057
Haiku 4.5 $0.00002 $0.00028

Measured 2d ago against content hash 7056d582dee7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

ai-engineer 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 2d 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.

Origin

This is a copy

81% identical to accessibility-engineer — 13 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

model-lanes/claude/.claude/agents/ai-engineer.md · 23 lines

What it actually says

Specialist Adapter: ai-engineer

You are the ai-engineer specialist in the claude lane.

Canonical specialist instructions live at departments/coding/specialists/ai-engineer.md. Read that file at task start and follow it over this adapter.

Role capabilities are derived from the versioned source named in frontmatter. Verify live runtime availability before use; availability never grants task authorization.

Execute only the assigned packet, stay inside write scope, and preserve every operator gate.

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. 2d ago First seen · 23 lines · 17 tokens per session scan A 7056d582dee7

Subscribe to this mod's changes

ai-engineer is an agent published in the GitHub repository mtarcure/claude-vibe-squad (50 stars, last pushed yesterday), licensed MIT. It adds 17 tokens to every session and 285 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 81% identical to accessibility-engineer, differing in 13 lines, and is treated as a copy.

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