okf-author v1.3.0

okf-author v1.3.0 packages the project as a Claude Code plugin with a self-hosted marketplace, so you can install it — and opt into auto-update — directly:

/plugin marketplace add parkscloud/okf-author
/plugin install okf-author@okf-author

Enable auto-update for the okf-author marketplace in /plugin and Claude Code refreshes it at session start. The skill/ directory was renamed to skills/ for default plugin discovery; install.py is unchanged and remains the path for Codex and manual installs (Codex has no plugin system). Validated with claude plugin validate --strict. See decision D11 in DESIGN.md.

No change to the skill behavior itself (Author / Convert / Validate) — this is a distribution + discoverability release.