Trail Split

Plugin Suite

Fourteen domain-expert plugins for Claude Code and Cowork. Each one encodes how a specialist in that field actually works — the order they do things in, the question that splits the field fastest, and the point at which they say they do not know.

Browse the full catalogue with live pricing at codestudioplugin.com — plans for every plugin are listed on the pricing page. Each plugin's tool server includes free tools for evaluating it before buying; a paid licence unlocks the rest. Every plugin is also published to Open VSX as a VS Code extension — in Cursor, Windsurf, VSCodium or Gitpod, search code-studio in the Extensions panel and install.

Installable as a marketplace:

/plugin marketplace add farssaadeldin7-ux/claude-plugin-suite/plugin install diagnose-by-sound@plugin-suite

The plugins

Audiences, the skill each user must bring, and the monetisation shape are in docs/AUDIENCES.md.

Design rules

These are enforced by review, and partly by scripts/validate.mjs.

1. No overclaiming. If the premise implies a capability that does not exist — reading minds, measuring an audience that was never asked, predicting a number from text — the plugin says so in its first paragraph and reframes as what it honestly is. A user who trusts a meaningless number is worse off than one who got nothing.
2. Thresholds, not vibes. "Under 15% separation, do not present a winner" beats "consider carefully". Every judgement in a skill should be checkable.
3. The limits section is mandatory. Every skill states what it cannot answer and when to say so.
4. References carry the tables. SKILL.md holds the procedure; lookup tables, taxonomies and worked examples live in references/ and are pointed at from the step where they become relevant.
5. British spelling. No emoji, no hype vocabulary. The validator warns on both.

Layout

.claude-plugin/marketplace.json   the marketplace manifestplugins/<id>/                     one directory per plugin  .claude-plugin/plugin.json      plugin manifest  skills/<id>/SKILL.md            the procedure  skills/<id>/references/*.md     tables, taxonomies, worked examples  .mcp.json, mcp/                 only where a plugin ships a tool serverpackages/suite-runtime/           shared MCP + licensing runtime, vendored into pluginsservices/billing/                 the Stripe-backed licensing service the runtime talks toscripts/                          validate, vendor, builddocs/                             architecture, audiences, licensing

Working on it

node scripts/validate.mjs        # structure, manifests, frontmatter, dead referencesnode scripts/vendor-runtime.mjs  # after editing packages/suite-runtimenode scripts/build.mjs           # .plugin archives into dist/node scripts/build-vsix.mjs      # VS Code extensions staged into dist/vsix/

CI runs all of these on every push. See docs/ARCHITECTURE.md for how to add a plugin, and docs/LICENSING.md for the free/paid split.

Publishing to Open VSX

Each plugin also ships as a VS Code extension: a thin extension.cjs that registers the plugin's MCP tool server through VS Code's MCP server definition provider API (VS Code 1.102+), with the whole zero-dependency mcp/ directory bundled inside the .vsix. The skills ship too: the bundled server publishes each one as an MCP prompt, which VS Code surfaces as a slash command (/mcp.<plugin>.<skill>). Listing is open; the skill body itself requires an active paid licence, same as the gated tools, since the .vsix is a public download.

One-time setup, in this order:

1. Create an Eclipse Foundation account and log in to open-vsx.org with it.
2. Sign the Publisher Agreement (open-vsx.org → your avatar → Settings → the agreement prompt).
3. Create an access token (Settings → Access Tokens) and store it: gh secret set OVSX_PAT --repo farssaadeldin7-ux/claude-plugin-suite

Then publish from the Actions tab: run the publish-openvsx workflow (optionally naming specific plugin ids). It packages every extension with vsce, creates the code-studio namespace if needed, and uploads each .vsix with ovsx, skipping versions that are already published. To build locally instead: node scripts/build-vsix.mjs --package.

The plugins also publish to npm as @farseman/<id> packages with the publish-npm workflow (runnable as npx @farseman/<id>; needs the NPM_TOKEN repository secret described at the top of .github/workflows/publish-npm.yml), and to the official MCP Registry with the publish-mcp-registry workflow: scripts/build-mcpb.mjs packages each one as an .mcpb bundle attached to a GitHub release, and the workflow submits each listing under the io.github.farssaadeldin7-ux namespace, authenticated with the job's own GitHub OIDC token — no stored secrets.

The same extensions publish to Microsoft's VS Code Marketplace with the publish-vsmarketplace workflow. That marketplace has no trusted publishing, so it needs a Personal Access Token stored as the VSCE_PAT repository secret — the one-time setup is described at the top of .github/workflows/publish-vsmarketplace.yml.

Status

Version 0.1.3. All fourteen plugins ship working MCP servers built on the shared runtime, each gating its licensed tools behind the billing service and keeping open tools for evaluation before buying.

Licence

Source-available, not open source. The code is published so it can be read and evaluated; publication grants no rights to copy, modify, redistribute or create derivative works from it. Paid plugin tiers are governed by the commercial terms shown at the point of purchase. See LICENSE.