io.github.JonahAlexanian/cpfs-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

  warn25% of grade

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

  no resolvable repository linked to the package (provenance unverifiable)

• 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. hooks/pre-commit.cjs) — 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: src/install.js: references a sensitive credential path (/mcp.json) — the tool-poisoning exfiltration target. HIGH: shell/exec capability AND network egress together — download-and-execute risk (src/histories.cjs: imports child_process and calls exec/spawn; src/dashboard.js: outbound HTTP/socket call). HIGH: shell/exec capability AND destructive filesystem writes together (src/histories.cjs: imports child_process and calls exec/spawn; src/histories.cjs: destructive/writing fs.* call (write/unlink/rm/chmod/rename)). discloses shell/exec capability: src/histories.cjs: imports child_process and calls exec/spawn discloses shell/exec capability: hooks/pre-commit.cjs: imports child_process and calls exec/spawn discloses shell/exec capability: runtime/checkpoint/attemptCheckpoint.js: imports child_process discloses shell/exec capability: runtime/scope/fileChangeSnapshot.js: imports child_process discloses shell/exec capability: runtime/onboarding/generate.js: imports child_process and calls exec/spawn discloses shell/exec capability: runtime/heuristic/gitChangedFiles.js: imports child_process discloses shell/exec capability: runtime/heuristic/gitDiffLines.js: imports child_process and calls exec/spawn discloses shell/exec capability: src/install.js: imports child_process and calls exec/spawn discloses shell/exec capability: runtime/verify/legacyCrossingDetect.js: imports child_process discloses shell/exec capability: runtime/log/listFeatures.js: imports child_process discloses shell/exec capability: runtime/heuristic/listRepoSourceFiles.js: imports child_process discloses shell/exec capability: src/lspClient.js: imports child_process and calls exec/spawn discloses shell/exec capability: runtime/verify/retestRunner.js: imports child_process and calls exec/spawn discloses shell/exec capability: runtime/lint/runLint.js: imports child_process discloses shell/exec capability: runtime/validate/runner.js: imports child_process discloses shell/exec capability: src/tools.js: imports child_process and calls exec/spawn discloses broad/destructive filesystem access: src/histories.cjs: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: runtime/jobLifecycle/actions.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/lint/afterEditLint.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/outcomes/assessAcceptanceGate.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/checkpoint/attemptCheckpoint.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/onboarding/audit.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: runtime/outcomes/buildChecklist.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/verify/chatClaimGuard.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/verify/coverageTaskScaffold.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/dashboard.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: runtime/formalFeature/draftFile.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: runtime/formalFeature/draftFile.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/scope/editHistory.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/workspace/enableCore.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/store/events.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/onboarding/generate.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: runtime/context/generateRule.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/heuristic/gitChangedFiles.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/heuristic/gitDiffLines.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/histories.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: src/install.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: runtime/dashboard/jobNumbers.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: runtime/dashboard/jobNumbers.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/dashboard/jobRoster.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/jobLifecycle/jobStatesStore.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/log/listFeatures.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/heuristic/listRepoSourceFiles.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/verify/overlapDetect.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/formalFeature/parseStructuredTests.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/verify/realTestEvidence.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/dashboard/renderCockpit.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/dashboard/renderJobBrowser.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/commands/resolveJob.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/verify/retestResultsStore.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/rulesWriter.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: runtime/log/scaffoldLog.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/heuristic/scanLines.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/scope/scopeProfiles.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/selfTest.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: runtime/log/taskIndex.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: runtime/log/taskIndex.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/tools.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: runtime/log/verifyAgreement.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/log/verifyEvidence.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/watcher.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: runtime/dashboard/workCommStore.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/chat/workQueue.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: runtime/zones/zoneMap.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.JonahAlexanian/[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.

  manifest/source references tracking behavior — disclosure