setup

A setup command for the Claude Foundation project. It checks the recommended RTK installation and optionally checks agent teams and the Codex command-line tool.

In plain words
What is it for?
Use it to verify the recommended RTK installation and optionally check whether agent teams and Codex CLI are available.
Why use it?
It gives the project a repeatable setup check before work begins.

Command

Part of the crb plugin — 7 skills, 14 commands shipped together

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 commands/astamvalley/claude-foundation/setup
Clone the repo
git clone --depth 1 https://github.com/astamvalley/claude-foundation

Or install crb, the plugin that ships this one along with the rest of its 7 skills, 14 commands.

Per session 67 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,970 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00067 $0.01970
Opus 5 $0.00034 $0.00985
Sonnet 5 $0.00013 $0.00394
Haiku 4.5 $0.00007 $0.00197

Measured 2d ago against content hash 570c868f3570, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

setup scanned grade B with 1 finding 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

find ~/.claude/plugins -name "codex-companion.mjs" 2>/dev/null | head -1
plugins/crb/commands/setup.md · 224 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. 2d ago First seen · 224 lines · 67 tokens per session scan B 570c868f3570

Subscribe to this mod's changes

setup is a command published in the GitHub repository astamvalley/claude-foundation (2 stars, last pushed 4mo ago), with no licence file. It adds 67 tokens to every session and 1,970 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.