Register as a Claude Code plugin marketplace (Day 1, #49)

[codeswithroh]

Closes #49.

What this does

Adds `.claude-plugin/marketplace.json` + `plugin.json` so tastemaker installs natively via:

```
/plugin marketplace add codeswithroh/tastemaker
/plugin install tastemaker@codeswithroh
```

No terminal, no git clone, no finding the right skills directory — matching taste-skill's lowest-friction install path, which this issue exists to close.

Why this required a real restructure, not just two JSON files

Read Claude Code's actual plugin-marketplace docs rather than guessing: a plugin's skills load by default from a skills/<name>/SKILL.md layout under the plugin's source. Confirmed against Anthropic's own first-party netlify-skills plugin (already installed on this machine) — its real on-disk cache uses exactly that structure. A bare root-level SKILL.md (our old layout) is not what gets scanned.

So: moved SKILL.md, references/, scripts/, assets/, and the vendored ideagram/ sub-skill into skills/tastemaker/ as a single git mv unit — all renames tracked at 100% similarity, zero content changes. Confirmed beforehand nothing inside that cluster references paths outside it, so the move was safe.

Caught a real bug via actual end-to-end testing

An initial strict: false + explicit skills: array config (mirroring netlify's marketplace.json literally) produced "conflicting manifests" and failed to load — a real, caught failure, not a hypothetical. Simplifying to source: "./" with no strict/skills override (relying on the default skills/ scan, which already matches our structure) fixed it. Verified via claude plugin list flipping from the caught failure to ✔ enabled, cache inspection confirming SKILL.md at the exact scanned path, and the install manifest structurally matching two other known-working installed plugins.

Deliberately omitted version from plugin.json (confirmed optional, falls back to git commit SHA) rather than adding a placeholder — real semantic versioning is #53's (Day 5) job.

Fixed in the same pass (caused by the restructure, not scope creep)

• README.md — Quick Start leads with the plugin install command; manual git-clone install corrected (the old `git clone -> ~/.claude/skills/tastemaker` would now put `SKILL.md` one directory too deep). Project layout diagram updated.
• CONTRIBUTING.md — local setup now `cd`s into `skills/tastemaker/` before any script commands, since every path in the file is relative to that folder now. Fixed the one script reaching outside the skill folder.
• `.github/PULL_REQUEST_TEMPLATE.md` + `preset_submission.yml` — the two checkbox items that read as literal commands corrected to the new path.

`marketplace.json` names the marketplace "codeswithroh" (a publisher namespace), not "tastemaker" (the product name) — deliberately leaving room for more plugins if #51's free/paid variant decision produces them.

Test plan

• `claude plugin validate .` passes (one cosmetic warning confirmed to also fire on Anthropic's own live plugin — not a real issue)
• Real end-to-end install: `claude plugin marketplace add` + `claude plugin install` against this actual repo, confirmed `✔ enabled`
• Cache inspection confirms `SKILL.md` lands exactly where the default scan looks
• All 53 file renames at 100% similarity (git-tracked moves, no content drift)
• No em-dashes or "preset" mentions introduced in README/CONTRIBUTING
• Test plugin/marketplace cleaned up from local Claude Code config after verification

🤖 Generated with Claude Code