Hookify Help

A guide for Hookify, a system that applies simple rules before or after coding-agent actions.

In plain words
What is it for?
Use it to match patterns such as dangerous shell commands, file actions, prompts, or stop events and show a warning or protection message.
Why use it?
It lets you warn about or stop unwanted commands and other behaviours through configuration files, without editing the main hook configuration.

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/poorgramer-zack/copilot-cli-things/hookify-help
Any agent
npx skills add Poorgramer-Zack/copilot-cli-things --skill hookify-help
Clone the repo
git clone --depth 1 https://github.com/Poorgramer-Zack/copilot-cli-things

Made for: Claude Code, Codex.

Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,219 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 2 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 $0.00052 $0.01219
Opus 5 $0.00026 $0.00609
Sonnet 5 $0.00010 $0.00244
Haiku 4.5 $0.00005 $0.00122

Measured 2d ago against content hash 05d4e23b9c68, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade D, and why

Hookify Help scanned grade D 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 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.

Asks for rootmediumPrivilege escalation

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

Don't use chmod 777 - it's a security risk. Use specific permissions instead.

Recursive force deletehighDestructive command

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

- `rm\s+-rf` - matches "rm -rf"
plugins/hookify/skills/hookify-help/SKILL.md · 177 lines

How it starts

The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hookify Plugin Help

Present the hookify plugin to the user: architecture, rule format, available skills, and getting started steps.

Overview

Hookify creates custom hooks that prevent unwanted behaviors via simple markdown configuration files instead of editing hooks.json.

How It Works

1. Hook System

Hookify installs generic hooks that run on these events:

  • preToolUse: Before any tool executes (powershell, edit, create, etc.)
  • postToolUse: After a tool executes
  • agentStop: When Copilot wants to stop working
  • userPromptSubmitted: When user submits a prompt

These hooks read configuration files from .github/hookify.*.local.md and check if any rules match the current operation.

2. Configuration Files

Users create rules in .github/hookify.{rule-name}.local.md files:

---
name: warn-dangerous-rm
enabled: true
event: bash
pattern: rm\s+-rf
---

⚠️ **Dangerous rm command detected!**

This command could delete important files. Please verify the path.

Key fields:

  • name: Unique identifier for the rule
  • enabled: true/false to activate/deactivate
  • event: bash, file, stop, prompt, or all
  • pattern: Regex pattern to match

The message body is what Copilot sees when the rule triggers.

3. Creating Rules

Option A: Use hookify-create skill

hookify-create Don't use console.log in production files

This analyzes your request and creates the appropriate rule file.

Option B: Create manually Create .github/hookify.my-rule.local.md with the format above.

Option C: Analyze conversation

hookify-create

Without arguments, hookify analyzes recent conversation to find behaviors you want to prevent.

Available Skills

  • hookify-create - Create hooks from conversation analysis or explicit instructions
  • hookify-help - Show this help (what you're reading now)
  • hookify-list - List all configured hooks
  • hookify-configure - Enable/disable existing hooks interactively

Read the full file on GitHub · 177 lines

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 · 177 lines · 52 tokens per session scan D 05d4e23b9c68

Subscribe to this mod's changes

Hookify Help is a skill published in the GitHub repository Poorgramer-Zack/copilot-cli-things (2 stars, last pushed 5mo ago), licensed MIT. It adds 52 tokens to every session and 1,219 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it D with 2 findings (asks for root, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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