ROS 2 MCP Server
A Model Context Protocol server for ROS 2, enabling AI assistants to introspect and interact with ROS 2 systems.
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Ranch-Hand-Robotics
Source: Glama
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
ROS_DISTROTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
32/32 tools missing one or more hints — get_nodes (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_node_info (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_topics (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +29 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Descriptions match behaviour
20 tools describe read intent but their handlers mutate — list_topics (line 172: result = subprocess.run(["ros2", "topic", "list", "-t" if show_types else ""],); get_topic_info (line 207: result = subprocess.run(["ros2", "topic", "info", topic_name],); echo_topic (line 248: type_result = subprocess.run(["ros2", "topic", "type", topic_name],)
Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.
Tool inputs are validated
29/32 tool handlers declare input schemas (91%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
Only 5/32 tool handlers wrap calls in try/catch (16%)
Wrap each tool handler body in try/catch and return a structured error response.
Tests exist
No test files found
Add tests that exercise each declared tool.
Tool description accuracy
20 tools have description/behavior mismatches: list_topics: description implies read-only but handler writes/deletes/executes; get_topic_info: description implies read-only but handler writes/deletes/executes; echo_topic: description implies read-only but handler writes/deletes/executes
Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.
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[](https://m8ven.ai/mcp/ranch-hand-robotics/rde-mcp-ros-2)?variant=verified from the URL.Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.
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