Skills / document-verification
verify-document
Check whether a document (PDF or image) shows signs of tampering or forgery before you rely on it. Use when the user asks to verify a payslip, invoice, bank statement, ID document, contract, or any document where authenticity matters.
authenticitydocument-verificationfact-checkingstipple
Document Verification
Inspect a document for forensic authenticity signals — not a fraud verdict, but a risk band with the evidence behind it. Uses the Stipple API (free anonymous tier, no signup).
When to use
- Before onboarding a tenant, contractor, or employee from uploaded documents
- Before paying an invoice that arrived by email
- Before relying on a bank statement, payslip, or certificate in any workflow
- Reviewing documents in due diligence, claims processing, or loan applications
Instructions
- Get the document. URL or local file path (PDF, PNG, JPEG, BMP, TIFF).
- Optionally check the cache first. If the user has the file's SHA-256, check whether it's already been inspected (free):
``bash curl "https://www.stipple.sh/v1/warrants/check?sha256=<hash>" ``
- Run verification. POST the document:
``bash curl -X POST https://www.stipple.sh/v1/warrants \ -F "file=@payslip.pdf" \ -H "Authorization: Bearer $STIPPLE_API_KEY" ``
Add ?fresh=true to force re-inspection of a previously cached document. Add ?deep=true for deep inspection (more thorough, more credits).
- Interpret the response. Two independent axes — read both:
| Axis | Question it answers |
|---|---|
risk_band | Does anything look tampered? (low / medium / high) |
inspection_quality | Could the engine actually see eno |
Subscribers only
The full skill, its 1 bundled files and every download is included with every paid Complete AI plan.
Details
| Source | Sketchjar/stipple-agent-skills |
|---|---|
| License | Apache-2.0 |
| Risk label | critical ("critical" means the skill may run commands or touch files — read before use) |
| Files | SKILL.md |
| Added | 2026-08-31 |
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