io.github.KyaniteLabs/kinocut

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: subprocess 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. kinocut/doctor.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.

  has both shell/exec and network egress — capable of download-and-run, though no such path was observed (kinocut/design_guardrails.py: subprocess.* call; kinocut/font_manager.py: outbound HTTP/socket call). has both shell/exec and destructive filesystem writes (kinocut/design_guardrails.py: subprocess.* call; kinocut/engine_advanced_mask.py: destructive filesystem call (shutil.rmtree/os.remove/etc.)). discloses shell/exec capability: 20 files (kinocut/design_guardrails.py, kinocut/doctor.py, kinocut/engine_audio_waveform.py, +17 more) discloses broad/destructive filesystem access: 27 files (kinocut/engine_advanced_mask.py, kinocut/engine_convert.py, kinocut/engine_hls.py, +24 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 1.15.0 (patch bump): new capability primitive(s) in source: fs-write, subprocess; new hardcoded outbound host/BCC destination(s): example.com, ffmpeg.org, git.kyanitelabs.tech, github.com, kinocut.dev, nodejs.org, raw.githubusercontent.com.

• Transport config

  warn10% of grade

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

  sends telemetry to third-party SDK (amplitude) — disclosure, verify opt-in; manifest/source references Tracking behavior — disclosure