hook-lifecycle-execution

hook-lifecycle-execution is a skill for Claude Code, Codex from shyamsridhar123/agentsmith-cli. It costs 21 tokens per session (191 once invoked), scanned A, original, MIT.

A runner for YAML-defined lifecycle hooks, which are commands triggered by project events such as before a commit or after generation. Hooks can have conditions and time limits.

In plain words
What is it for?
Use it to discover and execute event-specific hooks under .github/hooks, evaluate file or command conditions, and collect each hook's result.
Why use it?
It provides a consistent way to run project actions and stop or report failures when conditions are not met or commands take too long.

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/shyamsridhar123/agentsmith-cli/hook-lifecycle-execution
Any agent
npx skills add shyamsridhar123/agentsmith-cli --skill hook-lifecycle-execution
Clone the repo
git clone --depth 1 https://github.com/shyamsridhar123/agentsmith-cli

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 hook-lifecycle-execution

README.md
[![agentmods](https://agentmods.dev/badge/skills/shyamsridhar123/agentsmith-cli/hook-lifecycle-execution.svg)](https://agentmods.dev/skills/shyamsridhar123/agentsmith-cli/hook-lifecycle-execution)
Your own site
<a href="https://agentmods.dev/skills/shyamsridhar123/agentsmith-cli/hook-lifecycle-execution"><img src="https://agentmods.dev/badge/skills/shyamsridhar123/agentsmith-cli/hook-lifecycle-execution.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 191 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00021 $0.00191
Opus 5 $0.00010 $0.00096
Sonnet 5 $0.00004 $0.00038
Haiku 4.5 $0.00002 $0.00019

Measured 4d ago against content hash ab25e7f32241, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

hook-lifecycle-execution scanned grade A 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 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.

Runs shell commandslowCapability

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

- execSync command execution with timeout
.github/skills/hook-lifecycle-execution/SKILL.md · 38 lines

What it actually says

Hook Lifecycle Execution

Load and execute YAML-defined lifecycle hooks with optional conditions and controlled timeouts.

When to Use

Use this skill when:

  • Working with code in src/hooks/index.ts/
  • User mentions "hooks"
  • User mentions "pre-commit"
  • User mentions "post-generate"
  • User mentions "condition"
  • User mentions "timeout"

Patterns

  • event-scoped hook discovery under .github/hooks
  • execSync command execution with timeout
  • file/command condition evaluation
  • verbose output and early failure stop
  • per-hook success/error aggregation

Examples

const runner = new HookRunner(rootPath, verbose); await runner.execute('post-generate');

Category

reliability - Error handling, recovery, and fault tolerance

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 · 38 lines · 21 tokens per session scan A ab25e7f32241

Subscribe to this mod's changes

hook-lifecycle-execution is a skill published in the GitHub repository shyamsridhar123/agentsmith-cli (16 stars, last pushed 6d ago), licensed MIT. It adds 21 tokens to every session and 191 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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