registry / @companion-ai/feynman / 0.5.16
@companion-ai/feynman@0.5.16
Research-first CLI agent built on Pi and alphaXiv
AI Security Review
scanned 26d ago · by lpm-firewall-aiThe automatic install hook only checks the Node version. The CLI and project setup behavior inspected is consistent with ordinary invocation and explicit user-requested initialization, so the scanner signals do not establish malicious behavior.
Static reason
One or more suspicious static signals were detected.
Trigger
The package preinstall hook runs during installation; the CLI and project init command run when invoked.
Impact
The inspected behavior supports installation compatibility and user-requested project setup; no concrete malicious effect was established.
Mechanism
The install hook checks the Node version. The CLI loads a local environment file, and the explicit init command creates missing project documentation and session-log folders.
AI rationale
The automatic install hook only checks the Node version. The CLI and project setup behavior inspected is consistent with ordinary invocation and explicit user-requested initialization, so the scanner signals do not establish malicious behavior.
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 only runs a Node version check.
- The project init command is user-invoked and creates missing project notes and an AGENTS.md template.
- The CLI checks for its Pi peer dependencies before loading its main CLI module.
- The CLI loads a working-directory .env file at startup; no malicious behavior was identified in the inspected entrypoint.
Evidence against
- The package has an automatic preinstall hook, but its declared action is limited to a Node version check.
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@0.5.16.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.16 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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