joan-mcp (pollychrome/joan-mcp) 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.
MCP server for Joan productivity app - enables AI assistants to manage projects, tasks, goals, milestones, and notes
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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pollychrome
Source: github_code
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Install from
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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
JOAN_API_URLhttps://joan-api.alexbbenson.workers.dev/api/v1JOAN_AUTH_TOKEN(from login)JOAN_MCP_CONNECT_TIMEOUT_MS30000JOAN_MCP_LOG_LEVELinfoJOAN_MCP_SLOW_REQUEST_MS(disabled)JOAN_MCP_TIMEOUT_MS10000Tool 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
75/75 tools missing one or more hints — get_actionable_tasks (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); upload_attachment (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_attachments (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +72 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
74/75 tool handlers declare input schemas (99%)
Declare an inputSchema with zod/joi/yup on every tool definition.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tool test coverage
Only 2/75 tools referenced in tests (3%)
Write tests that reference each tool by name so every tool has at least one test.
Shell command execution
1 call in production code run through a shell (src/cli.ts:256)
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Secrets not logged
3 secret values sent to log
Redact or omit secret values from log output.
Production dependencies are patched
0 critical, 2 high severity in production deps — @modelcontextprotocol/sdk@1.24.3 (high), @modelcontextprotocol/sdk@1.24.3 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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