Output validation
Checking generated or tool-returned data before display, storage, or execution.
What Output validation does not show
It should be tailored to the downstream sink, not treated as generic sanitization.
Related terms in Security and privacy
Where an agent, a tool or a page can be turned against its operator, and the controls that limit the damage without proving safety.
X-Frame-Options · frame-ancestors · Referrer-Policy · Permissions-Policy · Encrypted Client Hello · lookalike domain · homoglyph · incident switch · high-risk field · Indirect prompt injection · Direct prompt injection · Jailbreak · Data exfiltration · Sensitive information disclosure · Secret leakage · Insecure output handling · Excessive agency · Least privilege · Trust boundary · Input validation · Allowlist · Denylist · SSRF · RCE · Credential scope · OAuth scope · API key · Bearer token · mTLS · Rate-limit policy · Audit log · PII · Data minimization · Purpose limitation · Retention period · Data residency · Tenant isolation · Threat model · DMARC · DMARC alignment · SPF · DKIM · MTA-STS · TLS-RPT · CAA record · DNSSEC · hard bounce
Questions about Output validation
What is Output validation?
Checking generated or tool-returned data before display, storage, or execution.
What does Output validation not show or guarantee?
It should be tailored to the downstream sink, not treated as generic sanitization.
Which area of the glossary does Output validation belong to?
Security and privacy: Where an agent, a tool or a page can be turned against its operator, and the controls that limit the damage without proving safety.
← Input validation · Allowlist →
See it in the full glossary · 772 terms across 19 areas.
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