javascriptMITTrust: scannedUsed 3×
Append file section once
A reusable utility function that idempotently appends a heading and section to a content string only if the heading is not already present.
Money path — what to verify before you trust it
Generated billing/webhook handlers routinely ship without an idempotency guard or signature timing-safety, so a single replay can double-charge or double-credit. Check that this card verifies the signature and is safe to replay before you rely on it.
Preview
4 lines// aperçu protégé · javascript · 4 lignes4 more lines are delivered on retrieval, with the full verified card and its proof receipt.
What you get on retrieval
- · The complete verified implementation, written to bytes by the MCP tool (near-zero output tokens).
- · A proof receipt: source provenance, review status, license state and estimated savings.
- · Revocation coverage — if a security fix lands on this primitive, retrievers are notified.