Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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rgbkrk
Source: ModelScope
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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.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
rconlist_playersList all currently connected players on the Minecraft server.
helpGet help for Minecraft commands.
server_statsGet server statistics including CPU, memory usage, and uptime.
server_logsGet recent server logs. Args: lines: Number of recent log lines to fetch (default: 10)
check_server_statusCheck if the Minecraft server is running and responsive.
Tool 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
6/6 tools missing one or more hints — rcon (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_players (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); help (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +3 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
3 tools describe read intent but their handlers mutate — server_stats (line 118: stats = subprocess.check_output(); server_logs (line 133: logs = subprocess.check_output(); check_server_status (line 144: status = subprocess.check_output()
Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tests exist
No test files found
Add tests that exercise each declared tool.
Tool description accuracy
3 tools have description/behavior mismatches: server_stats: description implies read-only but handler writes/deletes/executes; server_logs: description implies read-only but handler writes/deletes/executes; check_server_status: 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/rgbkrk/rcon-mcp)?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.
https://m8ven.ai/api/mcp/tool-check