SCL:V1 Validator

Verify AI Run Declarations

Verify AI run declarations against the SCL:V1 reference engine. Enforces structural conformance to the frozen grammar, produces deterministic canonical JSON, and computes identity from canonical JSON bytes. The processing pipeline is: bytes → AST → canonical JSON → SHA-256.

Any input that violates the specification results in failure. There is no partial acceptance, no approximate matching, and no interpretation. The first violation is reported deterministically by byte offset using E-series error codes. This is a reference protocol engine, not a sandbox.

SCL Document

SCL:V1

Input must conform exactly to the frozen SCL:V1 grammar.
Raw mode: content inside scl { } is treated as literal UTF-8 bytes. No parsing or interpolation is performed.

Deterministic Execution Trace

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Input bytes received

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UTF-8 and forbidden byte validation

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Grammar parsing (SCL:V1)

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AST construction

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Canonical JSON serialization

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SHA-256 identity derivation

Canonical JSON

Implementation-independent deterministic representation. Sole input to SHA-256.

Produced only when all trace steps pass.

SHA-256 Identity

Computed from canonical JSON bytes. Not derived from raw input.

Produced only when all trace steps pass.

What this engine enforces

Structural conformance to the frozen SCL:V1 grammar
Deterministic canonicalization (bytes → AST → canonical JSON)
Stable cryptographic identity (SHA-256 from canonical JSON bytes only)
Deterministic error reporting: first failure by byte offset, with E-series codes

This engine does not evaluate runtime behavior, orchestrate execution, or interpret content. It validates and canonicalizes AI run declarations at the protocol layer. SCL:V1 is frozen. Behavior is defined exclusively by the specification and test vectors.