bouncer

bouncer is a skill for Claude Code, Codex from floomhq/moto. It costs 72 tokens per session (511 once invoked), scanned C, original, MIT.

A pre-flight checklist for deciding whether a significant coding or production action is safe to start. It checks whether the action is reversible, timely, and correctly scoped.

In plain words
What is it for?
Use it before major changes, production work, safety checks, or plan validation to classify risk and identify required precautions.
Why use it?
It helps catch risky deletions, breaking changes, missing tests, uncommitted work, and solutions that address only a symptom.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it before major changes, production work, safety checks, or plan validation to classify risk and identify required precautions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/floomhq/moto/bouncer
View source ↗ floomhq/moto
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 floomhq/moto --skill bouncer
Clone the repo
git clone --depth 1 https://github.com/floomhq/moto

Made for: Claude Code, Codex.

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 bouncer

README.md
[![agentmods](https://agentmods.dev/badge/skills/floomhq/moto/bouncer/github.svg)](https://agentmods.dev/skills/floomhq/moto/bouncer)
Your own site
<a href="https://agentmods.dev/skills/floomhq/moto/bouncer"><img src="https://agentmods.dev/badge/skills/floomhq/moto/bouncer/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 bouncer

Your own site · 80×15
<a href="https://agentmods.dev/skills/floomhq/moto/bouncer"><img src="https://agentmods.dev/badge/skills/floomhq/moto/bouncer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 511 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00072 $0.00511
Opus 5 $0.00036 $0.00255
Sonnet 5 $0.00014 $0.00102
Haiku 4.5 $0.00007 $0.00051

Measured 9d ago against content hash 4636f59aa66c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade C, and why

bouncer scanned grade C with 1 finding 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 9d 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

- Any `rm -rf`, `DROP TABLE`, or irreversible operations
claude/skills/bouncer/SKILL.md · 72 lines

What it actually says

Bouncer: Pre-flight Risk Check

Before proceeding with any significant action, run this check. The bouncer's job is to catch bad ideas before they become problems.

The Three Questions

  1. Is this reversible?

    • If yes: proceed carefully
    • If no: require explicit confirmation and atomic commit first
  2. Is this the right time?

    • Are there uncommitted changes that should be committed first?
    • Are there tests that should pass first?
    • Is there a blocking issue that should be resolved first?
  3. Is the scope correct?

    • Is the proposed change proportional to the stated problem?
    • Are there unintended side effects?
    • Is this solving the root cause or a symptom?

Risk Categories

Green (proceed)

  • Additive changes (new files, new functions)
  • Changes to development/test environments
  • Reversible config changes
  • Changes with good test coverage

Yellow (proceed with caution)

  • Modifying existing logic
  • Database schema changes with migration
  • Changes affecting multiple consumers
  • Production config changes

Red (require explicit confirmation)

  • Deleting data or files
  • Breaking API changes
  • Production deployments without test pass
  • Changes to auth or security logic
  • Any rm -rf, DROP TABLE, or irreversible operations

Checklist

Before any significant change:

  • Understand what is being changed and why
  • Identify all files/systems affected (grep for callers)
  • Confirm tests exist or will be written
  • Confirm the change is reversible OR have a rollback plan
  • For production changes: confirm staging was tested first

Response Format

When invoked, output:

BOUNCER CHECK
Risk level: [GREEN / YELLOW / RED]
Reversible: [YES / NO / PARTIAL]
Preconditions met: [YES / NO - missing: ...]
Recommendation: [PROCEED / PROCEED WITH CAUTION / STOP AND CONFIRM]
Reason: [brief explanation]
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. 9d ago First seen · 72 lines · 72 tokens per session scan C 4636f59aa66c

Subscribe to this mod's changes

bouncer is a skill published in the GitHub repository floomhq/moto (32 stars, last pushed 3mo ago), licensed MIT. It adds 72 tokens to every session and 511 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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