Implement whole-Knowledge-Base validation per MASTER_SPEC §15.10, §26.4:
compiler/common/kb_validation.py (importable by the loader) plus a CLI at
scripts/validate_knowledge_base.py.
validate_knowledge_base(entries) collects every problem (never stops at the
first); each Message carries a code, the offending id, and a description:
- duplicate canonical id -> SC0005
- invalid category -> SC0008 (drawn from the shared 19-category constant)
- circular expansion (incl. self-expansion) -> SC0003, via DFS cycle detection
- duplicate alias, alias colliding with a canonical id (no chains), missing
expansion target, and per-entry schema nonconformance (empty tags, unknown
fields, ...) -> umbrella SC0004
Findings are deterministically ordered.
The CLI loads every *.json (array of entries) from a directory, reports invalid
JSON / non-array files as SC0004, writes JSON findings to stdout, and exits
non-zero when invalid.
Tests: a passing fixture plus a fixture per failure mode, multi-problem
reporting, determinism, and the CLI on valid/invalid/broken-JSON inputs.
Co-authored-by: kunail0804 <kunail0804@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
