Files
ECC/plugins
Affaan MustafaandGitHub 0348d7b6d7 chore(release): 2.2.3, ECC-only naming in pi/core and a longer npm publish wait (#3329)
pi/core and the bundled blueprint skill now refer to the project as ECC only;
the generated README no longer expands the name. Profile contents, package
name and paths are unchanged (123 skills, 24 commands).

The release workflows poll npm for up to five minutes after publish before
verifying the artifact. In 2.2.2 the check gave up after about 30 seconds while
npm was still processing, failing the run before latest was promoted and the
GitHub Release was created.

Version metadata synced to 2.2.3 with CHANGELOG, translated release headings
and release notes; skill-triggers registryDigest updated for the blueprint text.
2026-10-01 17:49:51 -05:00
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Plugins and Marketplaces

Plugins extend Claude Code with new tools and capabilities. This guide covers installation only - see the full article for when and why to use them.


Marketplaces

Marketplaces are repositories of installable plugins.

Adding a Marketplace

# Add official Anthropic marketplace
claude plugin marketplace add https://github.com/anthropics/claude-plugins-official

# Add community marketplaces (mgrep by @mixedbread-ai)
claude plugin marketplace add https://github.com/mixedbread-ai/mgrep
Marketplace Source
claude-plugins-official anthropics/claude-plugins-official
claude-code-plugins anthropics/claude-code
Mixedbread-Grep (@mixedbread-ai) mixedbread-ai/mgrep

Installing Plugins

# Open plugins browser
/plugins

# Or install directly
claude plugin install typescript-lsp@claude-plugins-official

Development:

  • typescript-lsp - TypeScript intelligence
  • pyright-lsp - Python type checking
  • hookify - Create hooks conversationally
  • code-simplifier - Refactor code

Code Quality:

  • code-review - Code review
  • pr-review-toolkit - PR automation
  • security-guidance - Security checks

Search:

  • mgrep - Enhanced search (better than ripgrep)
  • context7 - Live documentation lookup

Workflow:

  • commit-commands - Git workflow
  • frontend-patterns - UI patterns
  • feature-dev - Feature development

Quick Setup

# Add marketplaces
claude plugin marketplace add https://github.com/anthropics/claude-plugins-official
claude plugin marketplace add https://github.com/mixedbread-ai/mgrep

# Open /plugins and install what you need

Plugin Files Location

~/.claude/plugins/
|-- cache/                    # Downloaded plugins
|-- installed_plugins.json    # Installed list
|-- known_marketplaces.json   # Added marketplaces
|-- marketplaces/             # Marketplace data