S001 Success Criteria

ID	Criterion
S001-SC-001	Running parity check on a fully compliant project (all rules pass, global coverage above threshold) MUST always produce exit code 0. Running it 100 times in sequence MUST produce exit code 0 every time (deterministic).
S001-SC-002	The output of parity check --format=json MUST be valid JSON parseable by json_decode() without error. Piping stdout to jq . MUST succeed. No non-JSON bytes (warnings, ANSI codes, newlines before/after) are permitted in stdout.
S001-SC-003	In table mode, files MUST be visually grouped by their parent directory within each structure. A directory separator row MUST appear before the first file in each new directory group.
S001-SC-004	When zero enforced rule violations exist across all structures and global coverage (if configured) meets its threshold, the exit code MUST be 0.
S001-SC-005	When at least one enforced rule violation exists in any structure, or global coverage is below its configured threshold, the exit code MUST be 1.