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Roots
Last update:
May 18, 2026
Define resource boundaries for security, performance, and context switching.
Roots inform servers about relevant resource locations the client can access. They define URI boundaries for:
- Security: limiting directories, tenants, or systems in-scope
- Performance: preventing scanning of irrelevant resource spaces
- Context switching: switching tenant or project context
Root structure:
{ uri: "file:///...", name: "Test Cases" }- Add a root.ADDITIONAL INFORMATION:
mcpClient.addRoot("file:///home/user/testcases", "Test Cases");- Get a specific root.ADDITIONAL INFORMATION:
root = mcpClient.getRoot("file:///home/user/testcases");- Returns:
{ uri: "file:///...", name: "Test Cases" } - List all roots.ADDITIONAL INFORMATION:
roots = mcpClient.listRoots();- Returns:
{ roots: [{ uri: "...", name: "..." }] } - Remove a root.ADDITIONAL INFORMATION:
mcpClient.removeRoot("file:///home/user/testcases");- Notify server of root changes.ADDITIONAL INFORMATION:
mcpClient.rootsListChangedNotification();Result
Your MCP client now manages secure resource boundaries effectively.
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