environment-bootstrap

environment-bootstrap is a skill for Claude Code, Codex from troykelly/codex-skills. It costs 24 tokens per session (2,238 once invoked), scanned C, original, no licence file.

A process for setting up and maintaining a consistent development environment, the tools and configuration used to run a project.

In plain words
What is it for?
Creating setup scripts, maintaining them, and running smoke tests after setup.
Why use it?
It reduces differences between development sessions and checks that the project can start and run at a basic level.

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/troykelly/codex-skills/environment-bootstrap
Any agent
npx skills add troykelly/codex-skills --skill environment-bootstrap
Clone the repo
git clone --depth 1 https://github.com/troykelly/codex-skills

Made for: Claude Code, Codex.

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 environment-bootstrap

README.md
[![agentmods](https://agentmods.dev/badge/skills/troykelly/codex-skills/environment-bootstrap.svg)](https://agentmods.dev/skills/troykelly/codex-skills/environment-bootstrap)
Your own site
<a href="https://agentmods.dev/skills/troykelly/codex-skills/environment-bootstrap"><img src="https://agentmods.dev/badge/skills/troykelly/codex-skills/environment-bootstrap.svg" alt="Measured on agentmods" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,238 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 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 $0.00024 $0.02238
Opus 5 $0.00012 $0.01119
Sonnet 5 $0.00005 $0.00448
Haiku 4.5 $0.00002 $0.00224

Measured 5d ago against content hash db3e3f6d10fa, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

environment-bootstrap scanned grade C with 2 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 5d 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf node_modules dist .cache .next

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

if curl -sf http://[::1]:3000/health > /dev/null; then
skills/environment-bootstrap/SKILL.md · 373 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 5d ago First seen · 373 lines · 24 tokens per session scan C db3e3f6d10fa

Subscribe to this mod's changes

environment-bootstrap is a skill published in the GitHub repository troykelly/codex-skills (11 stars, last pushed 7mo ago), with no licence file. It adds 24 tokens to every session and 2,238 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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