opera-houdini-mcp (ChengZiiii/opera-houdini-mcp) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 174 tools. No publisher has claimed this listing.
A Houdini MCP server fork for CsrLib-Houdini workflow, providing enhanced tools for scene management, node discovery, graph editing, and safe code execution with tiered security policies.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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ChengZiiii
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.
HFSHOUDINI_MCP_ENV_DIR_env_dir()(3 处 prod + 2 处 test)HOUDINI_MCP_HYTHONHOUDINI_MCP_ALLOW_BYPASS双开关 bypass — 任何 dangerous / heavy / privileged 操作都需「请求端参数 + 服务端 =1」同时开启HOUDINI_MCP_LOCAL_HELP_URLget_houdini_help / verify_hou_apiHOUDINI_MCP_HOMERAPIDAPI_HOST_URL_opus.pyRAPIDAPI_HOST_opus.pyRAPIDAPI_KEY_opus.pyHOUDINI_MCP_RAG_INDEX_DIRHOUDINI_MCP_SENTINEL_CLEANUP_INTERVALHOUDINI_MCP_ALLOW_NEW_SCENEHOUDINI_MCP_HEADLESS_IDLE_SECONDSHOUDINI_MCP_RAG_SOURCETool 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
174/174 tools missing one or more hints — get_houdini_events (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); subscribe_houdini_events (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); unsubscribe_houdini_events (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +171 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
Only 53/174 tool handlers declare input schemas (30%)
Declare an inputSchema with zod/joi/yup on every tool definition.
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