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https://github.com/luongnv89/claude-howto.git
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Luong NGUYENandGitHub
b9a973bf32
Internal accuracy pass against v2.1.220 — no missing upstream features, but broken example code, disagreeing counts, and metadata drift.
Functional fixes: pre-commit.sh now exits 2 so it actually blocks; dependency-check.sh reads file_path from stdin JSON instead of $1; database-mcp.json uses ${DATABASE_URL}; broken fences repaired; three command templates had invalid skill names.
Factual corrections: /fork and /subtask unswapped and /subtask added; /fewer-permission-prompts; permissions.defaultMode; dontAsk/auto unreversed; 31 hook events verified name-by-name; subagent depth 3; skill precedence enterprise > project > personal; /output-style removed not deprecated; permissionDecision gained defer.
Follow-up review fixed defects the pass left behind: zh/vi headers claiming 31 events above 25-name lists, a surviving hardcoded DB credential in the MCP README examples, an unbalanced fence swallowing a metadata footer, and non-canonical tool names. All four translated CATALOG summary tables were recounted so their arithmetic holds.
Full detail in CHANGELOG.md under v2.1.220-r2.
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description
| description |
|---|
| Analyze code for performance issues and suggest optimizations |
Code Optimization
Review the provided code for the following issues in order of priority:
- Performance bottlenecks - identify O(n²) operations, inefficient loops
- Memory leaks - find unreleased resources, circular references
- Algorithm improvements - suggest better algorithms or data structures
- Caching opportunities - identify repeated computations
- Concurrency issues - find race conditions or threading problems
Format your response with:
- Issue severity (Critical/High/Medium/Low)
- Location in code
- Explanation
- Recommended fix with code example
Last Updated: August 4, 2026 Claude Code Version: 2.1.220 Sources:
- https://code.claude.com/docs/en/commands Compatible Models: Claude Fable 5, Claude Opus 5, Claude Sonnet 5, Claude Sonnet 4.6, Claude Opus 4.8, Claude Haiku 4.5