vantage-sh

Author a new MCP tool for the Vantage MCP server — file layout, nesting/moving existing siblings into resource folders, registerTool template, annotation hints, description style, and tests. Use whenever adding, splitting, refactoring, or relocating a tool under `src/tools/`. For evals, see writing-evals.

Write and iterate on tool-selection evals for the Vantage MCP server — evalite setup, prompt matrix, distractors, failure diagnosis, and db workflow. Use when adding or updating evals under `evals/` or when an eval run fails after changing a tool description or zod schema.