io.github.joshua-auchincloss/factsets

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 "@optique/run" is edit-distance 2 from top-20 package "vue" (typosquat candidate); dependency "@optique/core" is edit-distance 1 from popular package "cors" (typosquat candidate); dependency "@libsql/client" is edit-distance 2 from popular package "@aws-sdk/client-s3" (typosquat candidate)

• Credential hygiene

  pass15% of grade

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

  Reads secrets from the environment (e.g. src/config.ts) — the recommended intake shape. PASS = no static red flag; static analysis cannot prove the code honors env-based secret handling at runtime.

• 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 (src/commands/mcp-server.ts: imports child_process and calls exec/spawn; package.json depends on HTTP client "axios"). HIGH: shell/exec capability AND destructive filesystem writes together (src/commands/mcp-server.ts: imports child_process and calls exec/spawn; src/tools/config.ts: path traversal ('../') combined with file access). discloses shell/exec capability: src/commands/mcp-server.ts: imports child_process and calls exec/spawn discloses broad/destructive filesystem access: src/tools/config.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/db/operations/context.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/runtime/defaults.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/commands/dump.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/tools/execution-logs.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/db/operations/facts.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/tools/facts.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/seed/index.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/tools/preferences.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/db/operations/resources.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/schemas/resources.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/tools/resources.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/db/operations/skills.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/tools/skills.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/prompts/static-prompts.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/db/operations/tag-relationships.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/runtime/types.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/commands/watch-files.ts: 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.joshua-auchincloss/[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

  fail10% of grade

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

  source performs runtime self-update / download-and-execute (bypasses version_behavior); manifest/source references tracking behavior — disclosure