Individual skill
scunthorpe-check
False-rejection check for forms and validators — the Scunthorpe problem. Finds where real names (O'Brien, José Ñúñez, 李, a mononym), valid emails (a+tag@, long TLDs), international phones and postcodes, passphrases, or innocent words caught by profanity filters (Scunthorpe, Cockburn, assassin) are blocked or mangled. Types each value into a live test environment's forms and submits it, checking client validation, the server response, and the saved value; or reviews the repo's validation code. No signup.
skills/scunthorpe-check/SKILL.md
Source commit e17f9081b1b1746a837bb188f6ef3245d720fc4b
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- Yes
- Observed behavior
- Instructions only
- Last checked
- Nov 11, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
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An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.
Repository context
- Repository stars (not skill ratings)
- 13
- Repository last updated
- Nov 1, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- accessibility Repository topic
- claude-code Repository topic
- code-review Repository topic
- core-web-vitals Repository topic
- playwright Repository topic
- privacy Repository topic
- qa Repository topic
- quality-assurance Repository topic
- security Repository topic
- seo Repository topic
- testing Derived category
Files and excerpt
File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.
Browse files
SKILL.mdcore · 9,640 bytes
Read excerpt
# Scunthorpe Check
Your validator thinks José O'Brien is an attack.
Every other form check asks "does it accept garbage?" This one asks the opposite: does it
turn away real people? It covers apostrophes, accents, non-Latin scripts, one-word names,
plus-addressed emails, foreign postcodes, and towns that a lazy profanity filter blocks.
Each one is a customer who couldn't sign up and a support ticket nobody files.
## Prerequisites
- **Website mode:** Playwright MCP (comes with Claude Code).
- **Repository mode:** none. Reads local files directly.
