Phase 0 of the multi-skill build: ship the two stdlib-only tools that
the rest of the work depends on.
- scripts/sync_skill_bundles.py: mirror a standalone plugin's
SKILL.md + scripts/ + references/ + assets/ into its domain-bundled
location. --check exits 1 on drift; --sync rewrites the mirror.
- scripts/check_plugin_json.py: validate plugin.json against the
strict ClawHub schema (exactly the 8 allowed fields, semver version,
author{name,url}, skills as string or array — bare "./" rejected per
Claude Code v2.1.107+).
Verified: --all run reports OK on all 30 existing plugin.json files;
sync --check correctly detects missing mirrors. Karpathy-coder gate:
both files score 85/100 under strict (single nesting-depth WARN, no
FAIL) — better than the canonical karpathy-coder tools themselves.
https://claude.ai/code/session_01Dq12xJakFRxwaoU8Pqejdm
