registry / @companion-ai/feynman / 0.5.34
@companion-ai/feynman@0.5.34
Research-first CLI agent built on Pi and alphaXiv
AI Security Review
scanned 25d ago · by lpm-firewall-aiInspected source shows a version-check-only preinstall hook and user-invoked project setup. The launcher and alpha CLI behavior reviewed here do not establish a malicious attack surface.
Static reason
One or more suspicious static signals were detected.
Trigger
Package installation runs the Node version check; project setup runs when `/init` is invoked.
Impact
No harmful effect was established from these behaviors.
Mechanism
The inspected code checks runtime compatibility, registers project setup, resolves Pi peer dependencies, and launches the bundled alpha CLI.
AI rationale
Inspected source shows a version-check-only preinstall hook and user-invoked project setup. The launcher and alpha CLI behavior reviewed here do not establish a malicious attack surface.
Evidence
package.jsonextensions/research-tools/project.tsbin/feynman.jsdist/cli.js
Decision evidence
public snapshotAI called this Clean at 87.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The preinstall hook runs a Node version check.
- The project command registers `/init`; its handler resolves project-local `AGENTS.md` and session-log paths from `ctx.cwd`.
- The launcher checks for its Pi peer dependencies before importing the bundled entrypoint.
- The alpha command starts the package-resolved CLI with the supplied arguments and current 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@0.5.34.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.34 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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