Function withRequiredProjectPath

src/mcp/tools.ts:766–776

* Return `defs` with `projectPath` marked `required` in each tool's inputSchema. * * Used for the NO-DEFAULT-PROJECT tool surface (issue #993): when the MCP server * has no default project to fall back to — a gateway server started outside any * repo, or a monorepo root whose `.codegraph/` index

(defs: ToolDefinition[])

 * `required` list (status/files) gains `['projectPath']`.
 */
function withRequiredProjectPath(defs: ToolDefinition[]): ToolDefinition[] {
  return defs.map((tool) => {
    if (!tool.inputSchema.properties.projectPath) return tool;
    const required = tool.inputSchema.required ?? [];
    if (required.includes('projectPath')) return tool;
    return {
      ...tool,
      inputSchema: { ...tool.inputSchema, required: [...required, 'projectPath'] },
    };
  });
}

/**
 * Allowlist-filtered tool definitions WITHOUT an engine — the static surface the