docs: tell one true install story (official marketplace)

mattpocock-skills is now listed in Claude Code's official marketplace,
so the own-marketplace route is superseded. The queued changeset still
documented it, and changeset bodies ship verbatim into CHANGELOG.md —
the release would have published a superseded install route as its
headline.

- Rewrite .changeset/ship-as-claude-plugin.md around
  `claude plugins install mattpocock-skills`.
- Add .agents/install-block.md as the single source for install
  wording, so the docs pass has one true thing to copy.
- Point .agents/writing-docs.md and CLAUDE.md at it.
- Note the official listing in ADR 0002, and record that it reads
  plugin.json directly and does not depend on marketplace.json.

.claude-plugin/marketplace.json is kept as a fallback for direct-repo
installs; nothing in CI or scripts references it.

Refs mattpocock/personal-wiki#250

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Matt Pocock
2026-08-05 09:57:57 +01:00
co-authored by Claude Opus 5
parent a621cc4f75
commit c474642895
5 changed files with 60 additions and 6 deletions
@@ -26,3 +26,7 @@ The only robust ways to give Codex a single promoted-only path are (a) **restruc
- Every promoted skill has an entry in `.claude-plugin/plugin.json`'s `skills` array (this already stood as a `CLAUDE.md` rule; it now also gates the plugin's contents).
- `.claude-plugin/plugin.json`'s `version` tracks `package.json`'s version — bump both together on release. Claude uses the plugin `version` to decide when installed users see an update.
## Update, 2026-08-05
`mattpocock-skills` was accepted into **Claude Code's official marketplace** (`anthropics/claude-plugins-official`), which every Claude Code install has configured by default. `claude plugins install mattpocock-skills` is now the documented route, and the `marketplace add``install` path above is superseded. The official listing points at this repo's git URL and reads `.claude-plugin/plugin.json` directly, so it does not depend on `.claude-plugin/marketplace.json`; that file is retained only as a fallback for installing the repo directly (an unreleased commit, or a fork). The install wording lives in [.agents/install-block.md](../install-block.md).