# Trace

> Trace bugs and refactoring blast radius by chaining Codemap, LSP, and AST-grep. Short command alias for macro-to-micro.

- Skill: `shalomb/trace` (Agent Skill)
- Install (CLI): `npx skillmds@latest add shalomb/trace`
- Raw SKILL.md: https://api.skillmd.com/api/skills/shalomb/trace/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: shalomb (https://skillmd.com/u/shalomb)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/shalomb/trace

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# Macro-to-Micro Codebase Tracing (/trace)

<!-- generated:alias-skill -->
When invoked, load and execute the **`macro-to-micro`** skill:
1. Follow all instructions and guidelines in [`macro-to-micro`](../macro-to-micro/SKILL.md).
2. Follow the 3-tier articulation chain: Macro (Codemap file graph) -> Meso (LSP symbol graph) -> Micro (AST-grep syntax tree).
3. Identify hub files and dependency blast radius with Codemap before editing.
4. Trace call chains and data flow with LSP (`lsp reference`, `lsp definition`, `lsp outline`).
5. Perform surgical syntax-aware transformations using AST-grep (`sg run`).