skill preflight
Lint your SKILL.md for the security and quality issues marketplace reviewers reject — before you submit.
Free
Works with the AI tools you already use
Claude Code
Cursor
Codex CLI
Muse
Dots+22 moreClaude CodeCursorCodex CLIMuseDots
OpenClaw
Manus
Grok
Grok Bot+18 agentsskill preflight
Example session with this skill installed
Run a preflight check on my new web-scraper skill directory. I want to make sure I didn't leave any API keys in the scripts and that the SKILL.md is valid.
- Read your context and instructions
- Compiled the preflight
Preflight Report
❌ FAIL: Secrets found in scraper.py:42 (Hardcoded API Key).
⚠️ WARN: Undisclosed network call to api.scrapinghub.com in client.ts. Disclose this host in SKILL.md.
✅ PASS: SKILL.md frontmatter is valid.
Fix the key in scraper.py before submitting.
Connects securely to your tools. The creator never sees your data.
About this skill
skill-preflight runs the reviewer's checks on your machine so you pass review the first time instead of losing a 24-48h round-trip to a rejection.
It scans your SKILL.md package against the 8-point security rubric marketplaces reject on — hardcoded secrets, outbound data leaks, dangerous commands, obfuscated payloads, credential access, privilege escalation, injected-instruction phrasing, and undisclosed network calls — and adds the listing-quality checks that trigger soft rejections (missing frontmatter, weak description, no "use when..." trigger).
You get a pass/fail report with the exact file:line and a fix for every finding. FAIL = a hard reject reason; WARN = a likely flag or quality gap; PASS = clean.
Fully offline and static: it never executes your skill's code, never makes a network request, and never reads anything outside the path you give it. Works with any SKILL.md-compatible agent (Claude Code, Codex CLI, Cursor, Copilot, Gemini CLI). Requires Python 3.8+.
Run: python3 scripts/preflight.py <your-skill-dir>
How to install
Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.
- 1
Download the ZIP
Free skills download straight away. Paid skills unlock right after purchase.
- 2
Unzip into your skills folder
Every agent reads skills from one folder on your machine. Drop the unzipped folder in there.
- 3
Ask your agent to use it
Restart the agent if it was already running. It picks the skill up automatically - no config needed.
Skills folder by agent
Click the path to copy it. Create the folder if it does not exist yet.
Reviews
No reviews yet
Be one of the first to try it. Every listed skill passes our trust checks below.
Security scanned
Passed our 8-point scan before listing
2 installs
Downloaded by developers to date
Free forever
No account required to browse
Trust & safety
Security scanned
Verified clean 2 months ago
- Free to download with an account