What is spawn CLAUDE.md?

Repository instructions for Spawn, a tool that starts AI agents on cloud servers using a matrix of agent and cloud-provider combinations.

Use them when changing the command-line tool, installer scripts, cloud setup, agent support, provider support, or matrix status.

They identify the manifest as the source of truth and explain the project structure, reducing mistakes when adding or checking supported combinations.

How OpenRouterLabs/spawn configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to OpenRouterLabs/spawn. 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/OpenRouterLabs/spawn/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/OpenRouterLabs/spawn

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/openrouterlabs/spawn/claude-md/github.svg)](https://agentmods.dev/instructions/openrouterlabs/spawn/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/openrouterlabs/spawn/claude-md"><img src="https://agentmods.dev/badge/instructions/openrouterlabs/spawn/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/openrouterlabs/spawn/claude-md"><img src="https://agentmods.dev/badge/instructions/openrouterlabs/spawn/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 930 This file is loaded in full into every session.

When invoked 930 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00930	$0.00930
Opus 5.5	$0.00372	$0.00372
Sonnet 5.5	$0.00186	$0.00186
Haiku 4.5	$0.00093	$0.00093

Measured 2mo ago against content hash 51aa24875930, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

spawn CLAUDE.md 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 2mo 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.

CLAUDE.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Spawn

Spawn is a matrix of agents x clouds. Every script provisions a cloud server, installs an agent, injects OpenRouter credentials, and drops the user into an interactive session.

The Matrix

manifest.json is the source of truth. It tracks:

agents — AI agents and self-hosted AI tools (Claude Code, OpenClaw, Codex CLI, ...)
clouds — cloud providers to run them on (Sprite, Hetzner, ...)
matrix — which cloud/agent combinations are "implemented" vs "missing"

File Structure

spawn/
  packages/
    cli/
      src/index.ts               # CLI entry point (bun/TypeScript)
      src/manifest.ts            # Manifest fetch + cache logic
      src/commands/              # Per-command modules (interactive, list, run, etc.)
      src/commands/index.ts       # Barrel re-export of all command modules
      package.json               # npm package (@openrouter/spawn)
  sh/
    cli/
      install.sh                 # One-liner installer (bun → npm → auto-install bun)
    shared/
      github-auth.sh             # Standalone GitHub CLI auth helper
      key-request.sh             # API key provisioning helpers (used by QA)
    e2e/
      lib/*.sh                   # E2E helper libraries
    test/
      macos-compat.sh            # macOS compatibility test script
    {cloud}/
      {agent}.sh                 # Agent deployment scripts (thin bash → bun wrappers)
      README.md                  # Cloud-specific usage docs
  .claude/
    rules/                       # Modular rules (auto-loaded by Claude Code)
    scripts/                     # Hook scripts (enforce-worktree, validate-file, pre-merge-check)
    skills/setup-agent-team/
      trigger-server.ts          # HTTP trigger server (concurrent runs, dedup)
      discovery.sh               # Discovery cycle script
      refactor.sh                # Dual-mode cycle script (issue fix or full refactor)
      start-discovery.sh         # Launcher with secrets (gitignored)
      start-refactor.sh          # Launcher with secrets (gitignored)
  .github/workflows/
    discovery.yml                # Scheduled + issue-triggered discovery workflow
    refactor.yml                 # Scheduled + issue-triggered refactor workflow
  manifest.json                  # The matrix (source of truth)
  fixtures/                      # API response fixtures for testing
  README.md                      # User-facing docs
  CLAUDE.md                      # This file — project overview

Read the full file on GitHub · 85 lines

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.

2mo ago First seen · 85 lines · 930 tokens per session scan A 51aa24875930

Subscribe to this mod's changes

spawn CLAUDE.md is an instructions file published in the GitHub repository OpenRouterLabs/spawn (250 stars, last pushed 3d ago), licensed Apache-2.0. It adds 930 tokens to every session, about $0.0037 per session on Opus 5.5. 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 2026-08-30.

Building agents Cloud DevOps and cloud claude cli codex openclaw vm

spawn CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
spawn CLAUDE.mdOpenRouterLabs/spawn	Instructions file	250	3d ago	Apache-2.0	A	930	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

spawn: Instructions file for Claude Code