registry / @companion-ai/feynman / 0.5.19
@companion-ai/feynman@0.5.19
Research-first CLI agent built on Pi and alphaXiv
AI Security Review
scanned 26d ago · by lpm-firewall-aiInspected source shows a version-check preinstall hook and research tools that send optional Hugging Face credentials to Hugging Face endpoints. The scanner signals do not establish malicious behavior, so this package is clean.
Static reason
One or more suspicious static signals were detected.
Trigger
Package installation runs the Node version check; registered research tools make Hugging Face requests when invoked.
Impact
No confirmed malicious effect or unrelated credential destination was established.
Mechanism
The preinstall script checks the installed Node version. Hugging Face tools attach an optional Hugging Face token to requests directed to Hugging Face endpoints.
AI rationale
Inspected source shows a version-check preinstall hook and research tools that send optional Hugging Face credentials to Hugging Face endpoints. The scanner signals do not establish malicious behavior, so this package is clean.
Evidence
scripts/check-node-version.mjsextensions/research-tools/huggingface.ts
Network endpoints2
huggingface.co/apihuggingface.co
Decision evidence
public snapshotAI called this Clean at 96.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- package.json limits its preinstall hook to a Node.js version check.
- The project initialization command writes project-local research folders and creates AGENTS.md only when absent.
- The launcher checks the Pi peer runtime and loads the bundled CLI.
- The bundled alpha command passes arguments to a package-resolved child process and inherits the environment.
- Hugging Face tools read HF tokens and send them with requests to Hugging Face URLs.
Evidence against
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsTelemetryUrlStrings
Source & flagged code
5 flaggedpackage.jsonView file
•scripts.preinstall = node ./scripts/check-node-version.mjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkgbin/feynman.jsView file
23if (compareNodeVersions(parseNodeVersion(process.versions.node), parseNodeVersion(MIN_NODE_VERSION)) < 0) {
L24: const isWindows = process.platform === "win32";
L25: console.error(`feynman requires Node.js ${MIN_NODE_VERSION} or newer (detected ${process.versions.node}).`);
L26: console.error(isWindows
L27: ? "Install a supported Node.js release from https://nodejs.org, or use the standalone installer:"
L28: : `Switch to a supported Node release with \`nvm install ${PREFERRED_NODE_MAJOR} && nvm use ${PREFERRED_NODE_MAJOR}\`, or use the standalone installer:`);
...
L35:
L36: // `--version` needs only package.json; answer it without loading the CLI.
L37: if (process.argv.length === 3 && process.argv[2] === "--version") {
L38: const { readFileSync } = await import("node:fs");
L39: conso
High
Sandbox Evasion Gated Capability
Source gates dangerous network, credential, or execution behavior behind CI, host, platform, time, or geo fingerprint checks.
bin/feynman.jsView on unpkg · L23Findings
3 High5 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighSandbox Evasion Gated Capabilitybin/feynman.js
HighSemantic Analysis Limiteddist/cli.js#virtual:normalized:round1
MediumDynamic Requirebin/feynman.js
MediumNetwork
MediumEnvironment Vars
MediumShips Build Helperscripts/install/install-skills.sh
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowTelemetry
LowUrl Strings
Affected versions and remediation
This report applies to @companion-ai/feynman@0.5.19.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.19 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
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