ChukMCPServer (IBM/chuk-mcp-server) is an MCP server listed on the M8ven Trust Index. It scores 22 out of 100, grade F. It declares 33 tools. No publisher has claimed this listing.
A Python framework for building Model Context Protocol servers with decorator-based tools, zero-config deployment, and high performance.
Warning. Serious findings were identified. Review the full report before connecting. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
How we verified
Verified is a snapshot. Live keeps it current, and builds your track record.
⚡ Connect GitHub → continuous verification on every pushwhy connect →Who stands behind it
IBM
Source: Glama
Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →
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.
MCP_LOG_LEVELMCP_STDIO_CLIENT_RESPONSE_TIMEOUTMCP_HTTP_CLIENT_RESPONSE_TIMEOUTMCP_PROXY_TOOL_TIMEOUTMCP_SSR_FETCH_TIMEOUTMCP_SPA_FETCH_TIMEOUTMCP_SERVER_NAMEMCP_SERVER_VERSIONMCP_STDIOFUNCTION_NAMEFUNCTION_REGIONGOOGLE_CLOUD_PROJECTFUNCTION_MEMORY_MBFUNCTION_TIMEOUT_SECGOOGLE_CLOUD_FUNCTION_NAMEFUNCTION_TARGETK_SERVICETool 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
33/33 tools missing one or more hints — bench_add (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); bench_echo (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); hello (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +30 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.
Tool inputs are validated
30/31 tool handlers declare input schemas (97%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
Only 1/31 tool handlers wrap calls in try/catch (3%)
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.
No eval / new Function
1 eval() or new Function() call — dynamic code execution
Replace eval / Function with explicit parsing or safer alternatives.
Shell command execution
45 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Readable source code
2 files appear obfuscated
Ship unminified, readable source.
Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.
[](https://m8ven.ai/mcp/ibm/chuk-mcp-server)?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