com.files/python-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

  pass25% of grade

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

  Scanned 698 text field(s); no instruction-injection patterns found. PASS = no static red flag. A server can serve different tool descriptions at runtime (the rug-pull class), which static scanning cannot see.

• Supply chain

  pass25% of grade

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

  Python build script has no build-time network/exec; repository linkage verified

• Credential hygiene

  fail15% of grade

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

  tool "Create_Bundle" has a secret-shaped input parameter "password" — secrets must never be tool parameters (the model would supply/handle the credential). tool "Create_User" has a secret-shaped input parameter "password" — secrets must never be tool parameters (the model would supply/handle the credential). tool "Create_User" has a secret-shaped input parameter "require_password_change" — secrets must never be tool parameters (the model would supply/handle the credential). tool "Update_User" has a secret-shaped input parameter "password" — secrets must never be tool parameters (the model would supply/handle the credential). tool "Update_User" has a secret-shaped input parameter "require_password_change" — secrets must never be tool parameters (the model would supply/handle the credential).

• Permission scope

  pass15% of grade

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

  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

  fail10% of grade

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

  vs prior 1.0.79 (patch bump): new tool "Download_File_to_Local" touches a sensitive surface (email/exec/net/fs); new tool "Upload_File_from_Local" touches a sensitive surface (email/exec/net/fs); new tool "List_Bundle" appeared; new tool "Find_Bundle" appeared; new tool "Create_Bundle" appeared; new tool "Update_Bundle" appeared; new tool "Delete_Bundle" touches a sensitive surface (email/exec/net/fs); new tool "List_Bundle_Download" touches a sensitive surface (email/exec/net/fs); new tool "List_Bundle_Notification" appeared; new tool "Find_Bundle_Notification" appeared; new tool "Create_Bundle_Notification" appeared; new tool "Update_Bundle_Notification" appeared; new tool "Delete_Bundle_Notification" touches a sensitive surface (email/exec/net/fs); new tool "List_Bundle_Recipient" appeared; new tool "Create_Bundle_Recipient" appeared; new tool "List_Bundle_Registration" appeared; new tool "Delete_File" touches a sensitive surface (email/exec/net/fs); new tool "Find_File" touches a sensitive surface (email/exec/net/fs); new tool "Zip_List_Contents_File" touches a sensitive surface (email/exec/net/fs); new tool "Copy_File" touches a sensitive surface (email/exec/net/fs); new tool "Move_File" touches a sensitive surface (email/exec/net/fs); new tool "Transform_File" touches a sensitive surface (email/exec/net/fs); new tool "Gpg_Decrypt_File" touches a sensitive surface (email/exec/net/fs); new tool "Gpg_Encrypt_File" touches a sensitive surface (email/exec/net/fs); new tool "Unzip_File" touches a sensitive surface (email/exec/net/fs); new tool "Zip_File" touches a sensitive surface (email/exec/net/fs); new tool "List_For_Folder" appeared; new tool "Create_Folder" appeared; new tool "List_Group" appeared; new tool "Find_Group" appeared; new tool "Create_Group" appeared; new tool "Update_Group" appeared; new tool "Delete_Group" touches a sensitive surface (email/exec/net/fs); new tool "List_User" appeared; new tool "Find_User" appeared; new tool "Create_User" appeared; new tool "Update_User" appeared; new tool "Delete_User" touches a sensitive surface (email/exec/net/fs); new tool "List_Action_Log" appeared; new tool "List_Api_Request_Log" appeared; new tool "List_Automation" appeared; new tool "Find_Automation" appeared; new tool "List_Automation_Log" appeared; new tool "List_Email_Log" touches a sensitive surface (email/exec/net/fs); new tool "List_Exavault_Api_Request_Log" appeared; new tool "List_External_Event" appeared; new tool "List_File_Migration_Log" touches a sensitive surface (email/exec/net/fs); new tool "List_Ftp_Action_Log" appeared; new tool "List_For_File_History" touches a sensitive surface (email/exec/net/fs); new tool "List_For_Folder_History" appeared; new tool "List_For_User_History" appeared; new tool "List_Logins_History" appeared; new tool "List_History" appeared; new tool "List_Inbound_S3_Log" appeared; new tool "List_Outbound_Connection_Log" appeared; new tool "List_Permission" appeared; new tool "Create_Permission" appeared; new tool "Delete_Permission" touches a sensitive surface (email/exec/net/fs); new tool "List_Public_Hosting_Request_Log" appeared; new tool "List_Remote_Server" appeared; new tool "Find_Remote_Server" appeared; new tool "List_Scim_Log" appeared; new tool "List_Settings_Change" appeared; new tool "List_Sftp_Action_Log" appeared; new tool "List_Sync_Log" appeared; new tool "List_Web_Dav_Action_Log" 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.