io.github.VonderVuflya/yggdrasil

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

  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

  warn15% of grade

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

  tests/test_ygg_memory_server.py: embeds a PRIVATE KEY block. (in an example/sample file — lower severity, but a real key here still leaks.) Reads secrets from the environment (e.g. eval/ygg_eval.py) — the recommended intake shape.

• Permission scope

  warn15% of grade

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

  has both shell/exec and network egress — capable of download-and-run, though no such path was observed (yggdrasil/cli.py: subprocess.* call; scripts/release.sh: outbound HTTP/socket call). has both shell/exec and destructive filesystem writes (yggdrasil/cli.py: subprocess.* call; eval/ygg_eval.py: destructive filesystem call (shutil.rmtree/os.remove/etc.)). discloses shell/exec capability: 13 files (yggdrasil/cli.py, yggdrasil/service.py, yggdrasil/ygg_cross_agent_demo.py, +10 more) discloses broad/destructive filesystem access: 8 files (eval/ygg_eval.py, yggdrasil/install.sh, yggdrasil/install.sh, +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 0.13.2 (minor bump): new capability primitive(s) in source: child_process, fs-write, net, subprocess; new hardcoded outbound host/BCC destination(s): 127.0.0.1, 192.168.3.124, box, config, env, flag, github.com, ollama.com, pypi.org, www.apple.com.

• 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 check for updates behavior — disclosure