vc-system kit v3.0.0
Agents (15): frontmatter hardening — per-agent effort: tiers, skills: preload lists, disallowedTools:, and advisory write-guard PreToolUse(Write) hooks.
Skills (33): 16 skill scripts + docs synced (validators, plan examples, vc-setup/vc-update).
Protocols: implementation-standards, orchestration, plan-lifecycle updates; plan-file-frontmatter convention.
Docs: README + 9 i18n translations regenerated.
Non-destructive install retained; shared sync core (compute-sync-plan.mjs) drives install/update/publish.