## Why
Several small quality issues accumulated across plugin-author and
marketplace-author: the plugin-author description was ambiguous about
scope, the ADD flow asked an unnecessary clarifying question when local
path is the obvious default, VALIDATE had redundant wording already
captured inline, the keywords field was missing from the validation
checklist, and tests/README.md was a placeholder with nothing to test.
## Implementation Notes
- plugin-author: tightened description scope to "inside those
directories"; added `keywords` identical-in-both-manifests check to
VALIDATE checklist.
- marketplace-author: moved reserved-prefix constraint from gotchas
into the ADD checklist item; replaced the four-option prompt with a
default+escape-hatch ("I'll treat this as local path — is that right?");
folded the validate-from-root note inline and removed trailing padding;
deleted tests/README.md — no scripts/ directory exists, so the
placeholder was noise.
- README.md: removed the tests/README.md row from the file table.
## Why
Plugin and marketplace management had no governed authoring path. Creating or
updating a plugin required knowing the dual-manifest convention, version parity
rules, and directory skeleton by memory — nothing enforced consistency or guided
the process.
`/plugin-author` closes that gap by owning the full plugin scaffold lifecycle:
create, update, rename, and release. `/marketplace-author` handles the
marketplace-facing side: register, deregister, and update plugin entries in
`marketplace.json`.
ADR-0016 codifies the version parity convention (identical `version` in both
`plugin.json` and `.claude-plugin/plugin.json`) that `/plugin-author` now
enforces. The two plugin.json files in this repo are backfilled to comply
(keys also sorted to pass the pretty-format-json hook). CONTEXT.md gains
glossary entries for "plugin scaffold" and "version parity" so future agents
have shared vocabulary for these concepts.
## Implementation Notes
`/plugin-author` ships a `scripts/new-plugin.sh` scaffold script that generates
the directory skeleton and both manifests in one shot; the skill calls the script
rather than generating files ad hoc so the scaffold is reviewable and repeatable.
Version parity is an invariant, not a suggestion — the skill will fail loudly
on create/update if the two versions would diverge.
ADR: docs/adr/0016-plugin-version-parity.md
