Verity (johnnyryan/Verity) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.
A multi-agent verification MCP server that uses cross-family LLM critics, NLI, and consistency checks to minimize hallucinations and false claims in LLM outputs.
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.
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
johnnyryan
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
M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
express vulnerable to XSS via response.redirect()
Express.js Open Redirect in malformed URLs
AGGREGATOR_WEIGHTED_VOTECONSISTENCY_K_DEEPCONSISTENCY_K_DEEPERCONSULT_DUALSame effect as the Windows installer, into ~/Verity. The installer also sets =0; unified memory means one GPU, so the dual-GPU second-opinion path has nothing to do.CRITIC_A_MODEL, CRITIC_B_MODEL Whatever fits the weak GPUCRITIC_B_MODELCRITIC_A_MODEL, Whatever fits the weak GPUCRITIC_C_MODELCRITIC_SHUFFLELM_STUDIO_URLNLI_IMPLNLI_LLM_MODELNLI_MODELNLI_REQUIRE_CONTEXTOLLAMA_URLSECOND_OPINION_ANALYSIS_MAX_TOKENSSECOND_OPINION_ANALYSIS_MODELSECOND_OPINION_ANALYSIS_TIMEOUT_MSSECOND_OPINION_CONCURRENT_TIMEOUT_MSSECOND_OPINION_MAX_TOKENSSECOND_OPINION_MODELSECOND_OPINION_PRIMARY_API_KEYSECOND_OPINION_PRIMARY_ENDPOINTSECOND_OPINION_PRIMARY_MODELSECOND_OPINION_TEMPERATURESECOND_OPINION_TIMEOUT_MSVERIFIER_PORTVERIFIER_VERBOSEVERITY_BENCH_VERBOSEVERITY_CALIBRATED_THRESHOLDS_ADDITIVE_ONLYVERITY_CALIBRATED_THRESHOLDS_PATHVERITY_CONFIDENCE_GATEVERITY_CONF_LOW_MIN_LOGPROBVERITY_CONF_LOW_PERPLEXITYVERITY_CONF_LOW_RATIOVERITY_CONF_MILD_MIN_LOGPROBVERITY_CONF_MILD_PERPLEXITYVERITY_CONF_MILD_RATIOVERITY_CONF_VERYLOW_MIN_LOGPROBVERITY_CONF_VERYLOW_PERPLEXITYVERITY_CONF_VERYLOW_RATIOVERITY_HOSTVERITY_MAX_ANSWER_CHARSVERITY_MAX_PRIOR_CONTEXT_CHARSVERITY_MAX_QUESTION_CHARSVERITY_MAX_REQUEST_BYTESVERITY_PROXY_DEFAULT_MAX_OUTPUT_TOKENSVERITY_PROXY_HOSTVERITY_PROXY_MAX_REQUEST_BYTESVERITY_PROXY_PORTVERITY_PROXY_RESPONSES_TOP_LOGPROBSVERITY_PROXY_UPSTREAM_TIMEOUT_MSVERITY_PROXY_UPSTREAM_URLVERITY_RECOMPUTE_INDEPENDENTVERITY_REGEN_MAX_TOKENSVERITY_RESPONSES_TOP_LOGPROBSVERITY_SEMANTIC_ENTROPYVERITY_SEMANTIC_ENTROPY_SAMPLESVERITY_SUMMARY_ECHO_ANSWERWORKER_API_KEYWORKER_ENDPOINTProvider Connects directly Perplexity (logprobs)WORKER_MODELTool 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
2/2 tools missing one or more hints — verify_answer (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); consult_second_opinion (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). 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 test coverage
1/2 tools referenced in tests (50%)
Write tests that reference each tool by name so every tool has at least one test.
Shell command execution
11 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Production dependencies are patched
0 critical, 1 high severity in production deps — @modelcontextprotocol/sdk@1.0.0 (high), express@4.19.0 (low)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Domain consistency
npm scope @modelcontextprotocol doesn't match GitHub owner johnnyryan
Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.
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/johnnyryan-verity-f6mxi9)?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