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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zowe
Source: github_code
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MCP_DISCOVERY_DIRNO_COLORWORKSPACE_IDZOWE_EXPLORER_AVAILABLEZOWE_MCP_CAPABILITY_TIERZOWE_MCP_CEEDUMP_SAVE_DIRZOWE_MCP_CLI_DESC_VARIANTZOWE_MCP_CLI_PLUGINS_DIRZOWE_MCP_CREDENTIALSZOWE_MCP_DATA_MARKINGZOWE_MCP_DEFAULT_MVS_ENCODINGZOWE_MCP_DEFAULT_USS_ENCODINGZOWE_MCP_DISABLE_SSH_KEYZOWE_MCP_HOMEZOWE_MCP_HTTP_ALLOW_NO_AUTHZOWE_MCP_HTTP_HOSTZOWE_MCP_JOB_CARD_ELICIT_TIMEOUT_MSZOWE_MCP_JWKS_URIZOWE_MCP_JWT_AUDIENCEZOWE_MCP_JWT_ISSUERZOWE_MCP_LOCAL_FILES_ROOTZOWE_MCP_LOG_LEVELZOWE_MCP_LOG_TOOL_CALLSZOWE_MCP_MOCK_CLOCK_ISOZOWE_MCP_MOCK_DIRZOWE_MCP_MOCK_HOST_KEYZOWE_MCP_MOCK_JOB_ACTIVE_MSZOWE_MCP_NATIVE_RESPONSE_TIMEOUTZOWE_MCP_NATIVE_SERVER_AUTO_INSTALLZOWE_MCP_NATIVE_SERVER_PATHZOWE_MCP_OAUTH_RESOURCEZOWE_MCP_PASSWORD_CACHE_TTL_MSZOWE_MCP_PASSWORD_ELICIT_MODEZOWE_MCP_PASSWORD_ELICIT_URL_TIMEOUT_MSZOWE_MCP_PUBLIC_BASE_URLZOWE_MCP_REQUIRE_EXPLICIT_SYSTEMZOWE_MCP_RESPONSE_CACHE_DISABLEZOWE_MCP_RESPONSE_CACHE_MAX_BYTESZOWE_MCP_RESPONSE_CACHE_TTL_MINUTESZOWE_MCP_RESPONSE_CACHE_TTL_MSZOWE_MCP_SEARCH_FORCE_FALLBACKZOWE_MCP_TENANT_STORE_DIRZOWE_MCP_TENANT_STORE_KEYZOWE_MCP_TRANSPORTZOWE_MCP_VAULT_ADDRZOWE_MCP_VAULT_CACHE_TTL_MSZOWE_MCP_VAULT_KV_PATHZOWE_MCP_VAULT_TOKENZOWE_MCP_WORKSPACE_DIRZOWE_MCP_ZOWEX_RESPONSE_TIMEOUTZOWE_MCP_ZOWEX_SERVER_AUTO_INSTALLZOWE_MCP_ZOWEX_SERVER_PATHZOWE_MCP_ZOWE_BINTool 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
70/70 tools missing one or more hints — showCertificate (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); connectCertificate (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); deleteCertificate (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +67 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
68/70 tool handlers declare input schemas (97%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
68/70 tool handlers wrap calls in try/catch (97%)
Wrap each tool handler body in try/catch and return a structured error response.
README present
No README found
Add a README.md describing the server and its tools.
Tool test coverage
26/70 tools referenced in tests (37%)
Write tests that reference each tool by name so every tool has at least one test.
Tests pass
npm test failed — tests do not pass
Make sure npm test runs cleanly. Common cause: missing build step or missing env vars.
Shell command execution
24 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Secrets stay with their owner
1 secret/sensitive value flow into network calls (ZOWE_MCP_VAULT_TOKEN → dynamic)
Audit where credentials are sent. A NOTION_TOKEN should only reach api.notion.com — never a third-party host.
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/zowe/zowe-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