CostWise
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read_symbol tool

Tool: read_symbol

Return the full source code of a symbol (function, method, or type) by name — the implementation body itself, not just its location. Use this instead of reading a whole file when you need to see how something is implemented.

Arguments Schema

ParameterTypeRequiredDescription
repo_pathstringRequiredAbsolute path to the workspace root.
symbolstringRequiredSymbol name to read (function/method/type).
budgetstringOptionalToken budget: small (500), medium (1500), large (3000). Default medium.
Tool Input JSONRequest
{
  "symbol": "NewServer",
  "repo_path": "/path/to/repo",
  "budget": "medium"
}
Tool Response JSONResponse
// internal/mcpserver/server.go:42-60
func NewServer() *Server {
	return &Server{
		tools:   make(map[string]mcp.Tool),
		handlers: make(map[string]func(mcp.CallToolRequest) (*mcp.CallToolResult, error)),
	}
}

Developer Best Practices

  • Use this instead of reading a whole file when you need to see how a specific function or type is implemented.
  • Pair with find_symbol to first locate the definition, then read the body.