inbox-zero: Skill for Claude Code

.claude/skills/review-ai-prompt-changes/SKILL.md

review-ai-prompt-changes is a skill for Claude Code, Codex, Cursor from elie222/inbox-zero. It costs 71 tokens per session (847 once invoked), scanned A, original, no licence file.

A review workflow for changes to prompts and tool descriptions in a branch or pull request. Prompts are instructions given to an AI model, and tool descriptions explain available actions to it.

In plain words
What is it for?
It is for auditing system prompts, prompt builders, tool descriptions, their inputs, and nearby evaluation and test changes.
Why use it?
It helps detect repeated instructions, overly test-specific guidance, and problems in the surrounding evaluations or tests.

Skill for Claude CodeCodexCursor

Written for Claude Code and Cursor and Codex: installed under .claude/, but also shipped in a Cursor plugin.

This is elie222/inbox-zero's own configuration. It tells Claude Code, Codex and Cursor how to work on inbox-zero itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything inbox-zero configures →

Part of the inbox-zero-api plugin — 25 skills, 2 agents shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to elie222/inbox-zero. 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/elie222/inbox-zero/main/.claude/skills/review-ai-prompt-changes/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/elie222/inbox-zero

Made for: Claude Code, Codex, Cursor.

Or install inbox-zero-api, the plugin that ships this one along with the rest of its 25 skills, 2 agents.

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 review-ai-prompt-changes

README.md
[![agentmods](https://agentmods.dev/badge/skills/elie222/inbox-zero/review-ai-prompt-changes/github.svg)](https://agentmods.dev/skills/elie222/inbox-zero/review-ai-prompt-changes)
Your own site
<a href="https://agentmods.dev/skills/elie222/inbox-zero/review-ai-prompt-changes"><img src="https://agentmods.dev/badge/skills/elie222/inbox-zero/review-ai-prompt-changes/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 review-ai-prompt-changes

Your own site · 80×15
<a href="https://agentmods.dev/skills/elie222/inbox-zero/review-ai-prompt-changes"><img src="https://agentmods.dev/badge/skills/elie222/inbox-zero/review-ai-prompt-changes.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 847 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Agent Snooping · line 89
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
How audits are shown
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 $0.00071 $0.00847
Opus 5 $0.00036 $0.00424
Sonnet 5 $0.00014 $0.00169
Haiku 4.5 $0.00007 $0.00085

Measured 11d ago against content hash 8fff1514f3c1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

review-ai-prompt-changes 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 11d 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/skills/review-ai-prompt-changes/SKILL.md · 92 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 92 lines · 71 tokens per session scan A 8fff1514f3c1

Subscribe to this mod's changes

review-ai-prompt-changes is a skill published in the GitHub repository elie222/inbox-zero (12,181 stars, last pushed today), with no licence file. It adds 71 tokens to every session and 847 once invoked, about $0.0004 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 2026-08-30.

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