Initial commit

commands/context.md

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+---
+description: >
+  Diagnose current context usage and provide token optimization recommendations.
+  Displays token usage, file count, session cost. Helps identify context-heavy operations.
+  Use when context limits are approaching or to optimize session efficiency.
+  現在のコンテキスト使用状況を診断し、トークン最適化の推奨事項を提供。
+allowed-tools: Read, Glob, Grep, LS, Bash(wc:*), Bash(du:*), Bash(find:*)
+model: inherit
+---
+
+# /context - Context Diagnostics & Optimization
+
+## Purpose
+
+Diagnose current context usage and provide token optimization recommendations.
+
+## Dynamic Context Analysis
+
+### Session Statistics
+
+```bash
+!`wc -l ~/.claude/CLAUDE.md ~/.claude/rules/**/*.md 2>/dev/null | tail -1`
+```
+
+### Current Working Files
+
+```bash
+!`find . -type f -name "*.md" -o -name "*.json" -o -name "*.ts" -o -name "*.tsx" | grep -v node_modules | wc -l`
+```
+
+### Modified Files in Session
+
+```bash
+!`git status --porcelain 2>/dev/null | wc -l`
+```
+
+### Memory Usage Estimate
+
+```bash
+!`du -sh ~/.claude 2>/dev/null`
+```
+
+## Context Optimization Strategies
+
+### 1. File Analysis
+
+- **Large Files Detection**: Identify files over 500 lines
+- **Redundant Files**: Detect unused files
+- **Pattern Files**: Suggest compression for repetitive patterns
+
+### 2. Token Usage Breakdown
+
+```markdown
+## Token Usage Analysis
+- System Prompts: ~[calculated]
+- User Messages: ~[calculated]
+- Tool Results: ~[calculated]
+- Total Context: ~[calculated]
+```
+
+### 3. Optimization Recommendations
+
+Based on analysis, recommended optimizations:
+
+1. **File Chunking**: Split large files
+2. **Selective Loading**: Load only necessary parts
+3. **Context Pruning**: Remove unnecessary information
+4. **Compression**: Compress repetitive information
+
+## Usage Examples
+
+### Basic Context Check
+
+```bash
+/context
+# Display current context usage
+```
+
+### With Optimization
+
+```bash
+/context --optimize
+# Detailed analysis with optimization suggestions
+```
+
+### Token Limit Check
+
+```bash
+/context --check-limit
+# Check usage against token limit
+```
+
+## Output Format
+
+```markdown
+📊 Context Diagnostic Report
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+📈 Usage:
+- Current Tokens: ~XXXk / 200k
+- Utilization: XX%
+- Estimated Remaining: ~XXXk tokens
+
+📁 File Statistics:
+- Loaded: XX files
+- Total Lines: XXXX lines
+- Largest File: [filename] (XXX lines)
+
+⚠️ Warnings:
+- [Warning if approaching 200k limit]
+- [Warning for large files]
+
+💡 Optimization Suggestions:
+1. [Specific suggestion]
+2. [Specific suggestion]
+
+📝 Session Info:
+- Start Time: [timestamp]
+- Files Modified: XX
+- Estimated Cost: $X.XX
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+```
+
+## Integration with Other Commands
+
+- `/doctor` - Full system diagnostics
+- `/status` - Status check
+- `/cost` - Cost calculation
+
+## Best Practices
+
+1. **Regular Checks**: Run periodically during large tasks
+2. **Warning at Limit**: Alert at 180k tokens (90%)
+3. **Auto-optimization**: Suggest automatic compression when needed
+
+## Advanced Features
+
+### Context History
+
+View past context usage history:
+
+```bash
+ls -la ~/.claude/logs/sessions/latest-session.json 2>/dev/null
+```
+
+### Real-time Monitoring
+
+Track usage in real-time:
+
+```bash
+echo "Current context estimation in progress..."
+```
+
+## Notes
+
+- Leverages `exceeds_200k_tokens` flag added in Version 1.0.86
+- Settings changes reflect immediately without restart (v1.0.90)
+- Session statistics saved automatically via SessionEnd hook