hook-development

hook-development is a skill for Claude Code from OshanKHZ/cc-swiss-knife. It costs 117 tokens per session (4,482 once invoked), scanned A, original, no licence file.

Guidance for creating hooks, which are automated actions triggered by coding-agent events such as before or after a tool call.

In plain words
What is it for?
Use it to create and validate PreToolUse, PostToolUse, Stop, or related hooks.
Why use it?
It helps you define event-driven checks and safeguards, including rules that can block dangerous commands.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the claude-code-forge plugin — 5 skills shipped together

Good fit Use it to create and validate PreToolUse, PostToolUse, Stop, or related hooks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/oshankhz/cc-swiss-knife/hook-development
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.

Any agent
npx skills add OshanKHZ/cc-swiss-knife --skill hook-development
Clone the repo
git clone --depth 1 https://github.com/OshanKHZ/cc-swiss-knife

Made for: Claude Code.

Or install claude-code-forge, the plugin that ships this one along with the rest of its 5 skills.

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 hook-development

README.md
[![agentmods](https://agentmods.dev/badge/skills/oshankhz/cc-swiss-knife/hook-development.svg)](https://agentmods.dev/skills/oshankhz/cc-swiss-knife/hook-development)
Your own site
<a href="https://agentmods.dev/skills/oshankhz/cc-swiss-knife/hook-development"><img src="https://agentmods.dev/badge/skills/oshankhz/cc-swiss-knife/hook-development.svg" alt="Measured on agentmods" height="20"></a>
Per session 117 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,482 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00117 $0.04482
Opus 5 $0.00059 $0.02241
Sonnet 5 $0.00023 $0.00896
Haiku 4.5 $0.00012 $0.00448

Measured 7d ago against content hash 610611740e39, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

hook-development 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 7d ago.

The scan reads SKILL.md. This mod also ships 6 executable files (examples/load-context.sh, examples/validate-bash.sh, examples/validate-write.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

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.

plugins/claude-code-forge/skills/hook-development/SKILL.md · 798 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. 7d ago First seen · 798 lines · 117 tokens per session scan A 610611740e39

Subscribe to this mod's changes

hook-development is a skill published in the GitHub repository OshanKHZ/cc-swiss-knife (5 stars, last pushed 5mo ago), with no licence file. It adds 117 tokens to every session and 4,482 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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