centminmod / claude-plugins

• Site: https://ai.georgeliu.com/p/claude-plugins
• Article: https://ai.georgeliu.com/p/my-claude-code-plugin-marketplace

A personal Claude Code plugin marketplace. Each plugin is an independent, standalone unit that can be installed into any Claude Code project with a single command.

Claude Code's plugin system supports multiple plugins per marketplace and handles install + update lifecycle automatically. See the official plugin-marketplaces docs for the broader ecosystem.

Install the marketplace

Add this marketplace once, then install any plugin from it:

Run /plugin commands inside the Claude Code terminal CLI
(claude in your shell). They are not recognised in the desktop
app, claude.ai/code, or IDE extensions — you'll see "/plugin isn't
a recognized command here" if you try. Installed plugins then work
from every surface; only the install step requires the CLI.

/plugin marketplace add centminmod/claude-plugins

Available plugins

More plugins coming.

Further reading — session-metrics

Background articles by the author on what the skill does and what it
surfaces in practice:

• My Claude Code Plugin Marketplace Is Now Public. Install Session Metrics Skill Plugin.
• I built a token-cost analyzer skill for Claude Code — how the skill was designed and what it reports.
• I ran two Claude Opus 4.7 5-hour sessions — real-world session-metrics output from two back-to-back Opus 4.7 sessions, with cache-hit, cost, and token-usage analysis.

How the skill gets triggered

Plugin skills are namespaced as plugin-name:skill-name — for example
/session-metrics:session-metrics. In practice you rarely type that form:
each skill declares natural-language triggers in its SKILL.md, so Claude
Code auto-invokes the right one when you ask something like "how much has
this session cost?".

Licences

• Marketplace scaffold: MIT (see LICENSE).
• Each plugin under plugins/*/ carries its own LICENSE and may bundle
  third-party assets under their upstream licences. For session-metrics
  specifically, the default Highcharts renderer ships under a
  non-commercial-free licence — commercial use requires a paid Highsoft
  licence. MIT-licensed alternatives (uPlot, Chart.js) are selectable via
  the --chart-lib flag. See
  plugins/session-metrics/skills/session-metrics/scripts/vendor/charts/README.md
  for per-library LICENSE.txt files.

Contributing

This is a personal marketplace — issues and pull requests are welcome but
plugin additions are curated. Feel free to open an issue to discuss
bundling something new.

Related

• centminmod/my-claude-code-setup — personal Claude Code config template (bundles the same skills for direct copy)