It ensures the project's defined setup commands run automatically at initialization.

Setup — Hook for Claude Code by cyrus-cai/claude-cobrain

Setup

Setup is a hook for Claude Code from cyrus-cai/claude-cobrain. Its token cost is not measured, scanned A, a copy of SessionStart, MIT.

A setup hook that runs the project's setup.sh script once when the project is set up.

In plain words

What is it for?: Running the repository's setup script during project setup.
Why use it?: It ensures the project's defined setup commands run automatically at initialization.

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the claude-cobrain plugin — 7 skills, 1 command, 1 hook shipped together

Good fit Running the repository's setup script during project setup.

Compare 6 hooks from other repositories ↓

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code

/plugin marketplace add cyrus-cai/claude-cobrain

Claude Code

/plugin install claude-cobrain

Made for: Claude Code.

Or install claude-cobrain, the plugin that ships this one along with the rest of its 7 skills, 1 command, 1 hook.

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.

README.md

[![agentmods](https://agentmods.dev/badge/hooks/cyrus-cai/claude-cobrain/setup/github.svg)](https://agentmods.dev/hooks/cyrus-cai/claude-cobrain/setup)

Your own site

<a href="https://agentmods.dev/hooks/cyrus-cai/claude-cobrain/setup"><img src="https://agentmods.dev/badge/hooks/cyrus-cai/claude-cobrain/setup/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/hooks/cyrus-cai/claude-cobrain/setup"><img src="https://agentmods.dev/badge/hooks/cyrus-cai/claude-cobrain/setup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 63% copy Near-identical to another mod in the catalogue.

Security

Grade A, and why

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 2mo ago.

A static scan of the commands this hook runs, not an audit. A hook is shell that executes on your machine at the event it names, which is why every command in it is printed with what was found.

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

63% identical to SessionStart — 10 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.

plugin/hooks/hooks.json · 14 lines

What it actually says

{
  "Setup": [
    {
      "matcher": "*",
      "hooks": [
        {
          "type": "command",
          "command": "${CLAUDE_PLUGIN_ROOT}/scripts/setup.sh",
          "timeout": 10
        }
      ]
    }
  ]
}

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.

2mo ago First seen · 14 lines scan A 4666a8041e9f

Subscribe to this mod's changes

Setup is a hook published in the GitHub repository cyrus-cai/claude-cobrain (5 stars, last pushed 8mo ago), licensed MIT. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it A with 0 findings. It is 63% identical to SessionStart, differing in 10 lines, and is treated as a copy.

Claude Code claude claude-skills

Setup next to 6 hooks from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
Setupcyrus-cai/claude-cobrain	Hook	5	8mo ago	MIT	A	—	Claude Code
SessionStartlklimek/claudius	Hook	1	yesterday	GPL-3.0	A	—	Claude Code
StopA-Director/cc-forge	Hook	2	4mo ago	none	A	—	Claude Code
PostToolUsesupabase/supabase	Hook	115k	today	Apache-2.0	A	—	Claude Code
SessionStartsupabase/supabase	Hook	115k	today	Apache-2.0	A	—	Claude Code
SessionStartgoogle-gemini/gemini-cli	Hook	109k	today	Apache-2.0	A	—	Claude Code
PreToolUseapache/superset	Hook	75k	yesterday	Apache-2.0	A	—	Claude Code