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.
npx skills add OpenRouterLabs/spawn --skill codexgit clone --depth 1 https://github.com/OpenRouterLabs/spawnWrote 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.
[](https://agentmods.dev/skills/openrouterlabs/spawn/codex)<a href="https://agentmods.dev/skills/openrouterlabs/spawn/codex"><img src="https://agentmods.dev/badge/skills/openrouterlabs/spawn/codex/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.
<a href="https://agentmods.dev/skills/openrouterlabs/spawn/codex"><img src="https://agentmods.dev/badge/skills/openrouterlabs/spawn/codex.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00015 | $0.00513 |
| Opus 5.5 | $0.00006 | $0.00205 |
| Sonnet 5.5 | $0.00003 | $0.00103 |
| Haiku 4.5 | $0.00002 | $0.00051 |
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 1mo 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.
This is a copy
100% identical to spawn — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
Spawn — Create Child VMs
You have the spawn CLI installed. Use it to provision cloud VMs with AI agents.
Provision a Child VM
spawn <agent> <cloud> --headless --output json --prompt "task description"
Agents: claude, codex, cursor, openclaw, opencode, kilocode, hermes, junie Clouds: hetzner, digitalocean, aws, gcp, sprite
Returns JSON: {"status":"success","ip_address":"...","ssh_user":"root","server_id":"..."}
Running Prompts on Child VMs
--headless only provisions — to run work on the child, SSH in with bash -lc:
# Claude Code (use -p, NOT --print or --headless)
ssh -o StrictHostKeyChecking=accept-new root@<ip> "bash -lc 'claude -p --dangerously-skip-permissions \"your prompt\"'"
# Codex CLI
ssh -o StrictHostKeyChecking=accept-new root@<ip> "bash -lc 'codex --quiet \"your prompt\"'"
IMPORTANT — do NOT waste tokens rediscovering these:
- Always use
bash -lc— agent binaries are in~/.local/bin/which is only on PATH in login shells - Claude uses
-pfor non-interactive output (NOT--print, NOT--headless) - Add
--dangerously-skip-permissionsto skip approval prompts on child VMs - Never try
which claudeorfindto locate binaries — they are always at~/.local/bin/<agent> - Never create non-root users to work around permission issues — just use
-p
Managing Children
spawn list --json— see running childrenspawn delete --name <name> --yes— tear down a child VM (headless)spawn tree— see the full spawn tree
Context
- You are running inside a spawned VM (SPAWN_DEPTH is set)
- Cloud credentials are pre-configured — no auth prompts
- OpenRouter billing is shared with the parent
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.
- 1mo ago First seen · 52 lines · 15 tokens per session scan A c210319fd066
spawn is a skill published in the GitHub repository OpenRouterLabs/spawn (245 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 15 tokens to every session and 513 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to spawn, differing in 0 lines, and is treated as a copy.
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