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MCP Stateless Check

MCP008 — The removed resources/subscribe methods are still implemented
Severity error
Fixed by Upgrading your MCP SDK to a release targeting 2026-07-28
Transports stdio, http
Specification 2026-07-28
Changelog entry Major change 4 (SEP-2575)

Why this changed

Per-resource subscription methods were folded into one opt-in stream, subscriptions/listen. Both old methods are removed.

Running just this check

Terminal window
npx mcp-stateless --stdio "node dist/server.js" --only MCP008

Suppressing it

If this check does not apply to your server, skip it:

Terminal window
npx mcp-stateless --stdio "node dist/server.js" --skip MCP008

Rule ids are permanent and are never reissued, so a suppression cannot start silently matching a different check later.

Generated from src/rules/MCP008.ts by scripts/gen-rule-docs.mjs. Edit the rule source, not this page.