Spec72 Skill Certified seal

Spec72 Lint — Security Certificate

PASS · cert_id SAMPLE-2026-10-23-001

Date 2026-10-23 · Human-reviewed static SKILL.md review

FieldValue
Skill namexrpl-x402-handoff
SourceSKILL.md
ScopeStatic SKILL.md review (markdown + declared tools/constraints). No runtime sandbox, no live mainnet spend.
verify_urlhttps://spec72.dev/sample/cert-xrpl-x402-handoff.html
AuditorSpec72 (sample deliverable for Lint $29)

OWASP-style checklist summary

AreaResultOne-line note
Tools / privileged actionsPASSSpend paths gated; refuses mainnet until explicit human SÍ.
Secrets / credential handlingPASSExplicit ban on requesting seeds; no credential exfil patterns.
Exfiltration / data leaving hostPASSNo “send transcript elsewhere” steps; handoff stays human-ops scoped.
Handoff clarityPASSHard stop into human ops with spend ceiling + never double-pay rules.
When-not-to-usePASSConstraints cover refund/legal/seed requests and ambiguous network.
Prompt-injection surfacePASSTreats memos / buyer chat as untrusted for instructions.

Related sample artifacts

Disclaimer

Human-reviewed markdown security certificate for a static SKILL.md. Not a legal warranty, insurance policy, or guarantee of runtime safety, marketplace acceptance, or zero exploitability. Optional x402 auto-lint (1 USDC Base at https://spec72-lint.hkarlsson00.workers.dev/api/lint) is a machine pre-check and is not this certificate.

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