seq-mcp
A Model Context Protocol server that provides AI agents with controlled read access to Datalust Seq instances for log analysis and monitoring. It enables agents to search events, execute data queries, and retrieve information about signals, dashboards, and alerts.
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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MCLifeLeader
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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.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
SEQ_API_KEY401 Unauthorized: returns guidance to verify and SEQ_URL.SEQ_MAX_REQUEST_BYTESmax outbound request body size, default 262144.SEQ_MAX_RESPONSE_BYTESmax inbound response size, default 1048576.SEQ_TIMEOUT_MSrequest timeout in milliseconds, default 30000, bounded to 1000-120000.SEQ_URLaccepts either: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
15/15 tools missing one or more hints — seq_agent_guide (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); seq_starter_overview (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); seq_starter_events_search (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +12 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 2/15 tool handlers declare input schemas (13%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
12/15 tool handlers wrap calls in try/catch (80%)
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.
Production dependencies are patched
0 critical, 3 high severity in production deps — @modelcontextprotocol/sdk@1.18.0 (high), @modelcontextprotocol/sdk@1.18.0 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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