Reorganize: Move all skills to skills/ folder

- Created skills/ directory
- Moved 272 skills to skills/ subfolder
- Kept agents/ at root level
- Kept installation scripts and docs at root level

Repository structure:
- skills/           - All 272 skills from skills.sh
- agents/           - Agent definitions
- *.sh, *.ps1       - Installation scripts
- README.md, etc.   - Documentation

Co-Authored-By: Claude <noreply@anthropic.com>

skills/plugins/claude-hud/CLAUDE.md

@@ -0,0 +1,119 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code when working with this repository.
+
+## Project Overview
+
+Claude HUD is a Claude Code plugin that displays a real-time multi-line statusline. It shows context health, tool activity, agent status, and todo progress.
+
+## Build Commands
+
+```bash
+npm ci               # Install dependencies
+npm run build        # Build TypeScript to dist/
+
+# Test with sample stdin data
+echo '{"model":{"display_name":"Opus"},"context_window":{"current_usage":{"input_tokens":45000},"context_window_size":200000}}' | node dist/index.js
+```
+
+## Architecture
+
+### Data Flow
+
+```
+Claude Code → stdin JSON → parse → render lines → stdout → Claude Code displays
+           ↘ transcript_path → parse JSONL → tools/agents/todos
+```
+
+**Key insight**: The statusline is invoked every ~300ms by Claude Code. Each invocation:
+1. Receives JSON via stdin (model, context, tokens - native accurate data)
+2. Parses the transcript JSONL file for tools, agents, and todos
+3. Renders multi-line output to stdout
+4. Claude Code displays all lines
+
+### Data Sources
+
+**Native from stdin JSON** (accurate, no estimation):
+- `model.display_name` - Current model
+- `context_window.current_usage` - Token counts
+- `context_window.context_window_size` - Max context
+- `transcript_path` - Path to session transcript
+
+**From transcript JSONL parsing**:
+- `tool_use` blocks → tool name, input, start time
+- `tool_result` blocks → completion, duration
+- Running tools = `tool_use` without matching `tool_result`
+- `TodoWrite` calls → todo list
+- `Task` calls → agent info
+
+**From config files**:
+- MCP count from `~/.claude/settings.json` (mcpServers)
+- Hooks count from `~/.claude/settings.json` (hooks)
+- Rules count from CLAUDE.md files
+
+**From OAuth credentials** (`~/.claude/.credentials.json`, when `display.showUsage` enabled):
+- `claudeAiOauth.accessToken` - OAuth token for API calls
+- `claudeAiOauth.subscriptionType` - User's plan (Pro, Max, Team)
+
+**From Anthropic Usage API** (`api.anthropic.com/api/oauth/usage`):
+- 5-hour and 7-day usage percentages
+- Reset timestamps (cached 60s success, 15s failure)
+
+### File Structure
+
+```
+src/
+├── index.ts           # Entry point
+├── stdin.ts           # Parse Claude's JSON input
+├── transcript.ts      # Parse transcript JSONL
+├── config-reader.ts   # Read MCP/rules configs
+├── config.ts          # Load/validate user config
+├── git.ts             # Git status (branch, dirty, ahead/behind)
+├── usage-api.ts       # Fetch usage from Anthropic API
+├── types.ts           # TypeScript interfaces
+└── render/
+    ├── index.ts       # Main render coordinator
+    ├── session-line.ts   # Line 1: model, context, project, git, usage
+    ├── tools-line.ts     # Line 2: tool activity
+    ├── agents-line.ts    # Line 3: agent status
+    ├── todos-line.ts     # Line 4: todo progress
+    └── colors.ts         # ANSI color helpers
+```
+
+### Output Format
+
+```
+[Opus | Pro] █████░░░░░ 45% | my-project git:(main) | 2 CLAUDE.md | 5h: 25% | ⏱️ 5m
+◐ Edit: auth.ts | ✓ Read ×3 | ✓ Grep ×2
+◐ explore [haiku]: Finding auth code (2m 15s)
+▸ Fix authentication bug (2/5)
+```
+
+Lines are conditionally shown:
+- Line 1 (session): Always shown
+- Line 2 (tools): Shown if any tools used
+- Line 3 (agents): Shown only if agents active
+- Line 4 (todos): Shown only if todos exist
+
+### Context Thresholds
+
+| Threshold | Color | Action |
+|-----------|-------|--------|
+| <70% | Green | Normal |
+| 70-85% | Yellow | Warning |
+| >85% | Red | Show token breakdown |
+
+## Plugin Configuration
+
+The plugin manifest is in `.claude-plugin/plugin.json` (metadata only - name, description, version, author).
+
+**StatusLine configuration** must be added to the user's `~/.claude/settings.json` via `/claude-hud:setup`.
+
+The setup command adds an auto-updating command that finds the latest installed version at runtime.
+
+Note: `statusLine` is NOT a valid plugin.json field. It must be configured in settings.json after plugin installation. Updates are automatic - no need to re-run setup.
+
+## Dependencies
+
+- **Runtime**: Node.js 18+ or Bun
+- **Build**: TypeScript 5, ES2022 target, NodeNext modules