io.github.metabase/mcp

What we checked

Six static checks, weighted by risk. Every result reflects only what could be observed in the published package and repository — never intent.

• Injection surface

  unscannable25% of grade

  Tool descriptions/manifest scanned for instruction-injection patterns (imperatives at the model, hidden text, 'ignore previous', data-exfil URLs).

  No tool descriptions, server instructions, prompts, or resources were fetched; nothing to scan for injection.

• Supply chain

  fail25% of grade

  Package provenance: namespace verification, repo linkage, maintainer count, account age, postinstall scripts, typosquat distance.

  install hook "preinstall" contains inline code eval; dependency "@codemirror/commands" is edit-distance 2 from top-20 package "commander" (typosquat candidate); dependency "@codemirror/lint" is edit-distance 2 from popular package "eslint" (typosquat candidate); dependency "@codemirror/view" is edit-distance 2 from top-20 package "vue" (typosquat candidate); dependency "@dnd-kit/core" is edit-distance 1 from popular package "cors" (typosquat candidate); dependency "@floating-ui/dom" is edit-distance 2 from popular package "zod" (typosquat candidate); dependency "@lezer/highlight" is edit-distance 2 from popular package "highlight.js" (typosquat candidate); dependency "@lezer/lr" is edit-distance 2 from popular package "ws" (typosquat candidate); dependency "@mantine/core" is edit-distance 1 from popular package "cors" (typosquat candidate); dependency "@mantine/dates" is edit-distance 2 from top-20 package "dayjs" (typosquat candidate); dependency "@popperjs/core" is edit-distance 1 from popular package "cors" (typosquat candidate); dependency "@tiptap/core" is edit-distance 1 from popular package "cors" (typosquat candidate); dependency "@tiptap/pm" is edit-distance 1 from popular package "pm2" (typosquat candidate); dependency "@visx/axis" is edit-distance 1 from top-20 package "axios" (typosquat candidate); dependency "@visx/grid" is edit-distance 2 from top-20 package "uuid" (typosquat candidate); dependency "@visx/shape" is edit-distance 2 from popular package "sharp" (typosquat candidate); dependency "@visx/text" is edit-distance 1 from top-20 package "next" (typosquat candidate); dependency "color" is edit-distance 1 from popular package "colors" (typosquat candidate); dependency "d3" is edit-distance 2 from popular package "ws" (typosquat candidate); dependency "oxlint" is edit-distance 2 from popular package "eslint" (typosquat candidate); dependency "react-dnd" is edit-distance 2 from top-20 package "react-dom" (typosquat candidate); dependency "react-is" is edit-distance 2 from top-20 package "react" (typosquat candidate); dependency "typescript7" is edit-distance 1 from top-20 package "typescript" (typosquat candidate); dependency "url" is edit-distance 2 from popular package "ora" (typosquat candidate)

• Credential hygiene

  pass15% of grade

  How the server takes secrets (env vs plaintext config vs hardcoded); secrets appearing in tool schemas.

  No hardcoded secrets, secret-shaped tool parameters, or leaked keys found. PASS = no static red flag; static analysis cannot prove the code honors env-based secret handling at runtime.

• Permission scope

  pass15% of grade

  Declared tools vs. breadth (filesystem, network, exec); flags shell-exec and unbounded filesystem access.

  Network egress present (package.json depends on HTTP client "node-fetch") — expected for most servers and not a finding on its own. No shell-exec, unbounded/sensitive filesystem, or download-and-run primitives found in scanned source. PASS = no static red flag. Static scanning is blind to code fetched or executed at runtime.

• Version behavior

  unscannable10% of grade

  Diff of tool definitions between versions; new permissions or changed descriptions in a patch release (the postmark-mcp class).

  no prior version to diff (first sight of io.github.metabase/[email protected]); version-drift / rug-pull cannot be evaluated. Cold-start risk is covered by point-in-time checks (injection_surface, supply_chain, credential_hygiene), not here.

• Transport config

  warn10% of grade

  Remote servers: TLS and auth mode (none/token/OAuth). Local servers: whether the manifest indicates it phones home.

  remote endpoint present with no declared auth mode (unable to confirm authentication); manifest/source references Analytics behavior — disclosure