io.github.polydev-ai/polydev

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

  warn25% of grade

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

  dependency "prismjs" is edit-distance 2 from popular package "prisma" (typosquat candidate); dependency "@supabase/ssr" is edit-distance 2 from popular package "ws" (typosquat candidate); dependency "@upstash/redis" is edit-distance 2 from popular package "redux" (typosquat candidate); dependency "@hello-pangea/dnd" is edit-distance 2 from popular package "zod" (typosquat candidate)

• Credential hygiene

  warn15% of grade

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

  .env.example: contains a hardcoded OpenAI API key (sk-o…1a (len 73)) — in an example/sample file; verify it is not a real key. Reads secrets from the environment (e.g. lib/cliManager.js) — the recommended intake shape.

• Permission scope

  fail15% of grade

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

  HIGH: shell/exec capability AND network egress together — download-and-execute risk (lib/cliManager.js: imports child_process and calls exec/spawn; mcp/server.js: outbound HTTP/socket call). HIGH: shell/exec capability AND destructive filesystem writes together (lib/cliManager.js: imports child_process and calls exec/spawn; mcp/server.js: path traversal ('../') combined with file access). discloses shell/exec capability: lib/cliManager.js: imports child_process and calls exec/spawn discloses shell/exec capability: mcp/server.js: imports child_process and calls exec/spawn discloses shell/exec capability: package.json depends on exec-wrapper "shelljs" discloses broad/destructive filesystem access: mcp/server.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: lib/statusReporter.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: mcp/stdio-wrapper.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: mcp/stdio-wrapper.js: path traversal ('../') combined with file access Capability DISCLOSURE, not a verdict: static analysis sees the primitive is present and reachable, not whether its use is attacker-controlled.

• 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.polydev-ai/[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.

  sends telemetry to third-party SDK (posthog) — disclosure, verify opt-in; manifest/source references Analytics behavior — disclosure