Source Highlighting

Syntax-highlighted source code with per-hop color annotations for call path visualization.

When to use

Use this skill when the user asks:

• •"Highlight the code along this call path"
• •"Show me the source of function X with syntax highlighting"
• •"Visualize the call chain from X to Y"

How to invoke

Invocation: Use the claudit CLI only. Do not run python -m claudit.skills.highlight.

claudit highlight path <func1> <func2> <func3> --project-dir <dir> [--style monokai]
claudit highlight function <func> --project-dir <dir> [--language c|java|python]

The hop list for highlight path can come from claudit path find or from a manually confirmed chain when auto-discovery returns 0 paths (see path skill "When path find returns no paths" workflow).

from claudit.skills.highlight import highlight_path, highlight_function

# Highlight an entire call path
result = highlight_path("/project", ["main", "process", "target"], language="c")

# Highlight a single function
result = highlight_function("/project", "main", language="c")

Output format (highlight path)

For path, the output conforms to the Results Format: top-level metadata and results array. Each entry in the call chain is represented by only the definition span and the call-site span(s)—not every line in the function body.

• •Definition span: the line and column range where the function is defined (e.g. the function name).
• •Call-site span: for each hop except the last, the line and column range where the next function in the path is called.

Each hop shares one color (RGBA) for both its definition and its call-site result.

{
  "metadata": {
    "author": "claudit highlight",
    "timestamp": "2025-02-09T12:00:00.000Z",
    "tool": "claudit",
    "version": "0.1.0"
  },
  "results": [
    {
      "ID": "1",
      "description": "definition of main",
      "notes": "Entry point: calls process()",
      "category": "Call path",
      "severity": "info",
      "filename": "main.c",
      "linenum": 1,
      "col_start": 6,
      "col_end": 9,
      "function": "main",
      "color": "rgba(255, 107, 107, 0.3)"
    },
    {
      "ID": "2",
      "description": "call to process",
      "notes": "Entry point: calls process()",
      "category": "Call path",
      "severity": "info",
      "filename": "main.c",
      "linenum": 5,
      "col_start": 5,
      "col_end": 12,
      "function": "main",
      "color": "rgba(255, 107, 107, 0.3)"
    }
  ]
}

Notes

• •Path output uses the Results Format so tools (e.g. VS Code Manual Result Set Extension) can consume it directly.
• •Only call-chain locations (definitions and call sites) are emitted; full function bodies are not included.
• •Each hop gets a distinct color from a 10-color palette; definition and call-site for that hop share the same color.
• •For a single function, highlight function still returns raw source and Pygments highlighted_html for the full body.