spawn

spawn is a skill for Claude Code from ferdinandruthben12-dotcom/535-skills. It costs 19 tokens per session (738 once invoked), scanned A, original, no licence file.

A skill for launching several subagents in separate Git worktrees so they can work on the same task independently.

In plain words
What is it for?
Use it to start competing implementations, drafts, or research approaches within an AgentHub session.
Why use it?
It lets agents experiment in parallel without their unreviewed changes interfering with one another.

Skill for Claude Code

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

Part of the agenthub plugin — 8 skills shipped together

Good fit Use it to start competing implementations, drafts, or research approaches within an AgentHub session.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ferdinandruthben12-dotcom/535-skills/spawn
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 ferdinandruthben12-dotcom/535-skills --skill spawn
Clone the repo
git clone --depth 1 https://github.com/ferdinandruthben12-dotcom/535-skills

Made for: Claude Code.

Or install agenthub, the plugin that ships this one along with the rest of its 8 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 spawn

README.md
[![agentmods](https://agentmods.dev/badge/skills/ferdinandruthben12-dotcom/535-skills/spawn/github.svg)](https://agentmods.dev/skills/ferdinandruthben12-dotcom/535-skills/spawn)
Your own site
<a href="https://agentmods.dev/skills/ferdinandruthben12-dotcom/535-skills/spawn"><img src="https://agentmods.dev/badge/skills/ferdinandruthben12-dotcom/535-skills/spawn/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for spawn

Your own site · 80×15
<a href="https://agentmods.dev/skills/ferdinandruthben12-dotcom/535-skills/spawn"><img src="https://agentmods.dev/badge/skills/ferdinandruthben12-dotcom/535-skills/spawn.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 738 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 $0.00019 $0.00738
Opus 5 $0.00010 $0.00369
Sonnet 5 $0.00004 $0.00148
Haiku 4.5 $0.00002 $0.00074

Measured 8d ago against content hash 53e0d5d01d2e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

spawn 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 8d 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.

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.

alireza-engineering/agenthub/skills/spawn/SKILL.md · 84 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. 8d ago First seen · 84 lines · 19 tokens per session scan A 53e0d5d01d2e

Subscribe to this mod's changes

spawn is a skill published in the GitHub repository ferdinandruthben12-dotcom/535-skills (2 stars, last pushed 25d ago), with no licence file. It adds 19 tokens to every session and 738 once invoked, about $0.0001 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 2026-09-03.

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