io.github.john-broadway/proximo-proxmox

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

  fail25% of grade

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

  Python build script executes at build time: network call in build script

• 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/proximo/arm.py) — the recommended intake shape. PASS = no static red flag; static analysis cannot prove the code honors env-based secret handling at runtime.

• Permission scope

  warn15% of grade

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

  references credential paths: src/proximo/planning.py: references a credential path (\.ssh/) has both shell/exec and network egress — capable of download-and-run, though no such path was observed (src/proximo/backends.py: subprocess.* call; src/proximo/audit_anchor.py: outbound HTTP/socket call). has both shell/exec and destructive filesystem writes (src/proximo/backends.py: subprocess.* call; src/proximo/arm.py: destructive filesystem call (shutil.rmtree/os.remove/etc.)). discloses shell/exec capability: src/proximo/backends.py: subprocess.* call discloses broad/destructive filesystem access: 8 files (src/proximo/arm.py, src/proximo/audit.py, src/proximo/audit_anchor.py, +5 more) Capability DISCLOSURE, not a verdict: static analysis sees the primitive is present and reachable, not whether its use is attacker-controlled.

• 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 0.39.0 (patch bump): new capability primitive(s) in source: child_process, fs-write, http-client, net, subprocess; new hardcoded outbound host/BCC destination(s): 127.0.0.1, github.com, influx.example.com, john-broadway.github.io, pbs.example.lan, pbs.proxmox.com, pdm.example.com, pmg.example.lan, pve.example.lan, pve.proxmox.com, user.

• 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