registry / @companion-ai/feynman / 0.5.41
@companion-ai/feynman@0.5.41
The open source AI research agent.
AI Security Review
scanned 22d ago · by lpm-firewall-aiThe only npm install hook checks the Node.js version and exits for unsupported versions. The flagged project writes and child-process launch are tied to explicit commands, and the reviewed telemetry behavior is disclosed and opt-out controlled.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
The preinstall hook runs during installation to check the Node.js version; other reviewed behavior requires launching the CLI or invoking its explicit command.
Impact
No confirmed attack effect was identified.
Mechanism
The install hook checks the runtime version. The project configuration writes are limited to an explicit init command, and telemetry is disclosed with an enforced opt-out.
AI rationale
The only npm install hook checks the Node.js version and exits for unsupported versions. The flagged project writes and child-process launch are tied to explicit commands, and the reviewed telemetry behavior is disclosed and opt-out controlled.
Decision evidence
public snapshotAI called this Clean at 95.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The npm preinstall hook runs a Node.js version check, which exits when the installed version is unsupported.
- The CLI entrypoint imports the bundled application after invocation; the `alpha` child process runs only through the explicit `alpha` command.
- The flagged `init` handler is a registered extension command that writes project-local `AGENTS.md` and session-log files only when they are absent.
- Telemetry notice describes the collected usage fields, excludes prompts and research content, and provides an opt-out that the configuration code enforces.
Evidence against
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsTelemetryUrlStrings
Source & flagged code
6 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" || process.argv[2] === "-v")) {
L38: const { readFileSync } = await
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
4 High5 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighSandbox Evasion Gated Capabilitybin/feynman.js
HighSemantic Analysis Limiteddist/cli.js#virtual:normalized:round1
HighPrevious Version Dangerous Deltadist/cli.js
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@0.5.41.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.41 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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