registry / @companion-ai/feynman / 0.5.31
@companion-ai/feynman@0.5.31
Research-first CLI agent built on Pi and alphaXiv
AI Security Review
scanned 26d ago · by lpm-firewall-aiSource inspection found a preinstall Node version check and ordinary user-invoked CLI setup behavior. The scanner signals do not establish malicious behavior.
Static reason
One or more suspicious static signals were detected.
Trigger
Installation runs a Node version check; project initialization requires an explicit command.
Impact
No credential collection, unauthorized configuration change, or other harmful effect was established.
Mechanism
The install hook checks the runtime version, while initialization creates project files only when they are missing.
AI rationale
Source inspection found a preinstall Node version check and ordinary user-invoked CLI setup behavior. The scanner signals do not establish malicious behavior.
Evidence
package.jsonscripts/check-node-version.mjsbin/feynman.jsdist/cli.jsextensions/research-tools/project.ts
Decision evidence
public snapshotAI called this Clean at 91.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The preinstall hook runs a Node version check; it does not mutate consumer configuration or approve dependency scripts.
- The version check exits when Node is unsupported.
- The launcher checks for its Pi peer dependencies, then loads the package’s own CLI bundle.
- The project init handler creates AGENTS.md and session log files only when they are absent.
- The bundled CLI helper launches the resolved alpha CLI with supplied arguments, the selected working directory, and inherited environment.
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@0.5.31.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.31 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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