io.github.LGDiMaggio/predictive-maintenance-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

  warn25% of grade

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

  server instructions: imperative telling the model it must read/send/attach something.

• 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.

  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

  unscannable15% of grade

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

  No source files, package.json, or pyproject were fetched; cannot infer capability scope.

• Version behavior

  warn10% of grade

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

  vs prior 0.12.0 (minor bump): new tool "list_signals" appeared; new tool "generate_test_signal" appeared; new tool "load_signal" touches a sensitive surface (email/exec/net/fs); new tool "get_signal_info" touches a sensitive surface (email/exec/net/fs); new tool "clear_signals" appeared; new tool "analyze_fft" appeared; new tool "analyze_envelope" appeared; new tool "analyze_statistics" touches a sensitive surface (email/exec/net/fs); new tool "extract_features_from_signal" appeared; new tool "compute_power_spectral_density" appeared; new tool "compute_spectrogram_stft" appeared; new tool "assess_severity" appeared; new tool "train_anomaly_model" touches a sensitive surface (email/exec/net/fs); new tool "predict_anomalies" appeared; new tool "list_machine_manuals" touches a sensitive surface (email/exec/net/fs); new tool "extract_manual_specs" touches a sensitive surface (email/exec/net/fs); new tool "calculate_bearing_characteristic_frequencies" appeared; new tool "read_manual_excerpt" touches a sensitive surface (email/exec/net/fs); new tool "search_bearing_catalog" touches a sensitive surface (email/exec/net/fs); new tool "search_documentation" touches a sensitive surface (email/exec/net/fs); new tool "check_bearing_faults" appeared; new tool "diagnose_vibration" touches a sensitive surface (email/exec/net/fs); new tool "generate_diagnostic_report" appeared; new tool "generate_diagnostic_report_docx" touches a sensitive surface (email/exec/net/fs); new tool "plot_signal" touches a sensitive surface (email/exec/net/fs); new tool "generate_fft_report" touches a sensitive surface (email/exec/net/fs); new tool "generate_envelope_report" touches a sensitive surface (email/exec/net/fs); new tool "generate_iso_report" touches a sensitive surface (email/exec/net/fs); new tool "list_html_reports" touches a sensitive surface (email/exec/net/fs); new tool "generate_pca_visualization_report" touches a sensitive surface (email/exec/net/fs); new tool "generate_feature_comparison_report" touches a sensitive surface (email/exec/net/fs); new tool "estimate_rul" appeared; new tool "analyze_signal_trend" appeared; new tool "generate_maintenance_recommendations" appeared.

• Transport config

  unscannable10% of grade

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

  local stdio server: no remote transport or auth surface, and no phone-home/telemetry signal found in source. Absence of transport findings is NOT a safety guarantee — phone-home hosts can be constructed at runtime and defeat static analysis.