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Runaway Guard

Category: General  ·  Sub-category: general-misc  ·  Last updated:
ai:claudetype:review
Use when writing or reviewing code that calls a paid AI / inference API in a loop, queue, retry path, agent step, webhook handler, or background job — Fal.ai, Anthropic, OpenAI, Replicate, ElevenLabs, Together, Groq, Cohere, Mistral, fal-client, @anthropic-ai/sdk, openai, replicate. Treats dollar cost as a third complexity dimension alongside time and space. Forces writing a per-run $-cap, a per-day $-cap, a max-iterations bound, and a concurrency limit BEFORE the call site is written — and forces a matching hard cap at the provider dashboard so a code bug cannot bypass it. The canonical failure is a $200 overnight bill from a retry loop that "obviously terminates" but did not. Pairs with invariant-guard (termination is now a wallet invariant) and complexity-cuts (when the runaway already shipped).
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Every loop has time complexity and space complexity. A loop that calls a paid API has a third: dollars per execution. The model tracks the first two automatically. It does not track the third, so it ships code where a single bug — a retry without bound, a stream reconnect storm, an agent that re-queues itself, a webhook that fires the same job twice — silently spends real money.

What this skill does

Runaway Guard is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/runaway-guard/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when writing or reviewing code that calls a paid AI / inference API in a loop, queue, retry path, agent step, webhook handler, or background job — Fal.ai, Anthropic, OpenAI, Replicate, ElevenLabs, Together, Groq, Cohere, Mistral, fal-client, @anthropic-ai/sdk, openai, replicate.

Who uses this skill

The Runaway Guard Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 191,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/runaway-guard
curl -L https://claudskills.com/skills/runaway-guard/SKILL.md \
  -o ~/.claude/skills/runaway-guard/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/runaway-guard/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/runaway-guard/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\runaway-guard\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Runaway Guard Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/runaway-guard/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Runaway Guard skill do?
Use when writing or reviewing code that calls a paid AI / inference API in a loop, queue, retry path, agent step, webhook handler, or background job — Fal.ai, Anthropic, OpenAI, Replicate, ElevenLabs, Together, Groq, Cohere, Mistral, fal-client, @anthropic-ai/sdk, openai, replicate. Treats dollar cost as a third complexity dimension alongside time and space. Forces writing a per-run $-cap, a per-day $-cap, a max-iterations bound, and a concurrency limit BEFORE the call site is written — and forces a matching hard cap at the provider dashboard so a code bug cannot bypass it. The canonical failure is a $200 overnight bill from a retry loop that "obviously terminates" but did not. Pairs with invariant-guard (termination is now a wallet invariant) and complexity-cuts (when the runaway already shipped).
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Runaway Guard skill?
Use Runaway Guard when your Claude Code task falls under the General category — specifically in the general misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Runaway Guard" or describe the task and let Claude pick). Browse related skills at /category/general/.
What is a Claude Code skill and how does the Runaway Guard skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Runaway Guard is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
morsechimwai. (2026). Runaway Guard [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/runaway-guard/
BibTeX
@misc{runaway-guard-2026,
  author    = {morsechimwai},
  title     = {Runaway Guard [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/runaway-guard/}
}

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Security scan

Grade A · scanned 2026-08-26 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

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