wip: [01-stabilize] paused at task 1/1 - OCR Hallucination Immune logic via Semantic delta window and fret-isolation

.agent/knowledge/everything_claude/plugins/README.md

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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](https://x.com/affaanmustafa/status/2012378465664745795) for when and why to use them.
+
+---
+
+## Marketplaces
+
+Marketplaces are repositories of installable plugins.
+
+### Adding a Marketplace
+
+```bash
+# 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
+```
+
+### Recommended Marketplaces
+
+| Marketplace | Source |
+|-------------|--------|
+| claude-plugins-official | `anthropics/claude-plugins-official` |
+| claude-code-plugins | `anthropics/claude-code` |
+| Mixedbread-Grep (@mixedbread-ai) | `mixedbread-ai/mgrep` |
+
+---
+
+## Installing Plugins
+
+```bash
+# Open plugins browser
+/plugins
+
+# Or install directly
+claude plugin install typescript-lsp@claude-plugins-official
+```
+
+### Recommended Plugins
+
+**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-design` - UI patterns
+- `feature-dev` - Feature development
+
+---
+
+## Quick Setup
+
+```bash
+# 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
+```