# RFC-0010: Guarded Emit Syscall

**Status:** Draft \| **Updated:** 2026-02-17

## Signature

emit_guarded(caller_session_id, request_id, output, proof_ref) -\>
ok\|error

## Enforcement

Validates must-delegate invariant (RFC-0007) using ledger evidence
(RFC-0009). Rejects output not derived from child output.