cranelisp: Hook for Claude Code

.claude/settings.json

SubagentStart is a hook for Claude Code from alilee/cranelisp. Its token cost is not measured, scanned A, original, MIT.

A startup hook that runs a Python telemetry script whenever a subagent begins.

In plain words
What is it for?
It is for recording or handling subagent-start events through the project's telemetry tool.
Why use it?
It provides a defined automatic action at subagent startup without requiring a person to run the script manually.

Hook for Claude Code

Written for Claude Code: $CLAUDE_PROJECT_DIR variable.

This is alilee/cranelisp's own configuration. It tells Claude Code how to work on cranelisp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything cranelisp configures →

One of 3 entries in settings.json — they are configured in one file and arrive together.

Reuse

Borrowing it

Nothing to install: this file belongs to alilee/cranelisp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/alilee/cranelisp/main/.claude/settings.json
Clone the repo
git clone --depth 1 https://github.com/alilee/cranelisp

Made for: Claude Code.

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 SubagentStart

README.md
[![agentmods](https://agentmods.dev/badge/hooks/alilee/cranelisp/subagent-start.svg)](https://agentmods.dev/hooks/alilee/cranelisp/subagent-start)
Your own site
<a href="https://agentmods.dev/hooks/alilee/cranelisp/subagent-start"><img src="https://agentmods.dev/badge/hooks/alilee/cranelisp/subagent-start.svg" alt="Measured on agentmods" 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. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

SubagentStart 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 yesterday.

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

Copies of this mod

1 near-identical copy found in the catalogue:

.claude/settings.json · 12 lines

What it actually says

{
  "SubagentStart": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "python3 $CLAUDE_PROJECT_DIR/.agents/tools/subagent_telemetry.py"
        }
      ]
    }
  ]
}
Same file

What else settings.json configures

This page is one entry in a file that holds 3. Installing the file brings all of them; each is measured and scanned on its own page.

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. yesterday First seen · 12 lines scan A 5432768d5ed9

Subscribe to this mod's changes

SubagentStart is a hook published in the GitHub repository alilee/cranelisp (7 stars, last pushed 6d 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.