dev-agent-setup

A setup guide for a development workflow that uses separate helper agents for context analysis, planning, implementation, and code auditing.

In plain words
What is it for?
Use it to configure an agent pipeline for a new project and create the supporting agent files in the right order.
Why use it?
It moves heavy development work into separate conversations, helping keep the main conversation focused and within its token limit.

Skill for Claude CodeCodex

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/volomydyr/design-engineer-plugin/dev-agent-setup
Any agent
npx skills add volomydyr/design-engineer-plugin --skill dev-agent-setup
Clone the repo
git clone --depth 1 https://github.com/volomydyr/design-engineer-plugin

Made for: Claude Code, Codex.

Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,601 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 $0.00039 $0.02601
Opus 5 $0.00019 $0.01300
Sonnet 5 $0.00008 $0.00520
Haiku 4.5 $0.00004 $0.00260

Measured 2d ago against content hash 008bd245116a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

dev-agent-setup 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.

skills/dev-agent-setup/SKILL.md · 224 lines

How it starts

The opening of the file, as written. The whole thing — 224 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Pipeline Setup

Why This Matters

Sub-agents run outside your main conversation in separate chats with separate token limits. This means the heavy work of analyzing context, implementing features, and auditing code happens without burning through your main conversation's 200,000 token budget.

In practice, four agents are usually enough. Starting with twelve and refining down is a common experience – maintaining too many agents is hard, and the main conversation forgets to run some of them or does it in the wrong order.

Interaction Method

If AskUserQuestion is available, use it for all prompts below.

If not, present each question as a numbered list and wait for a reply before proceeding. For multiSelect questions, accept comma-separated numbers (e.g. 1, 3). Never skip or auto-answer without explicit user consent.


Step 0: Before starting

  1. Announce your execution plan: Before doing anything, state what you will do in this activity: "Here's what I'm going to do: 1) assess your project type, 2) explain the proven agent pipeline pattern, 3) read memory for project context, 4) set up the agent files customized to your project, 5) configure the pipeline in your CLAUDE.md, 6) explain how iteration works." This is a commitment device – harder to skip steps you just announced.

  2. Conditional teaching: Ask the user if they are familiar with the agent pipeline concept – sub-agents running in separate chats with separate token limits. If yes, give a one-sentence refresher. If no, explain it in simple terms: agents are specialized AI workers that handle heavy tasks (analyzing code, implementing features, auditing quality) in their own conversations, so your main conversation stays light and responsive.

    Required: ALWAYS ask the question, ALWAYS give the refresher when the user says yes. Never skip this step because the user "is a designer" or "already demonstrated familiarity earlier." Users want a memory refresh on every activity, including ones they know. Phrases like "I'll skip the explainer (you're a designer)" are forbidden — they signal the model has decided ON BEHALF OF the user that a refresher isn't needed. The user, not the model, decides what's redundant. The refresher takes one sentence; the cost is trivial; the value to a tired user mid-session is high.

Read the full file on GitHub · 224 lines

Files

What ships with it

2 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. 2d ago First seen · 224 lines · 39 tokens per session scan A 008bd245116a

Subscribe to this mod's changes

dev-agent-setup is a skill published in the GitHub repository volomydyr/design-engineer-plugin (19 stars, last pushed 1mo ago), licensed MIT. It adds 39 tokens to every session and 2,601 once invoked, about $0.0002 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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