Claude Code's 28 Official Plugins Revealed - Undocumented Feature Extensions

A Reddit ClaudeAI community member has revealed that Claude Code contains 28 official plugins, many of which are poorly documented. The user verified all plugins and published a practical evaluation of their utility.

Plugin Location

Official plugins are located in the following directory:

~/.claude/plugins/marketplaces/claude-plugins-official/plugins/

Each plugin exists as a folder with its own configuration file and can be installed by referencing this directory directly.

High-Impact Technical Plugins

The verifier particularly recommends the following plugins:

typescript-lsp Adds TypeScript language server integration. Enables Claude to perform actual type checking, jump to definitions, and error diagnostics instead of guessing. Considered the highest-impact plugin for TypeScript developers.

security-guidance Scans for common vulnerabilities. Detects hardcoded secrets, authentication bypass patterns, and injection risks. Operates passively while Claude writes code.

context7 Documentation search functionality. Enables Claude to retrieve latest library documentation instead of relying on training data. Useful when working with rapidly evolving frameworks.

playwright Browser automation and testing. Enables Claude to launch browsers, navigate pages, take screenshots, fill forms, and run end-to-end tests.

Workflow Improvement Plugins

Non-technical but useful plugins include:

claude-md-management Automatic project file maintenance. Maintains structure, updates sections, and prevents chaos over time.

explanatory-output-style Changes Claude’s output style to be educational. Explains “why” in addition to “what.” Useful for learning and documentation.

code-review Structured code review with quality scoring. Provides Claude with a framework beyond “looks good.”

Actual Impact

The verifier estimates “Claude Code operates at about 60% of its capability in default configuration.” These plugins are not mere decoration but substantial feature extensions:

• typescript-lsp provides actual type awareness
• security-guidance passively detects vulnerabilities
• context7 operates with current documentation (not training data)

The verifier reports a case where security-guidance detected an authentication bypass bug written by Claude.

Community Response

Many users agreed with the verifier’s comment: “I use Claude Code daily and didn’t know about these plugins until I stumbled upon them.” The insufficient documentation of official plugins has become a topic of discussion in the community.

Other technical plugins include pr-review-toolkit (PR workflow specific), commit-commands (commit message standardization), and code-simplifier (cyclomatic complexity measurement and simplification suggestions).

The complete list and details can be verified in the local plugin directory.

Source: Reddit r/ClaudeAI https://www.reddit.com/r/ClaudeAI/comments/1r4tk3u/