registry / @companion-ai/feynman / 0.5.49
@companion-ai/feynman@0.5.49
The open source AI research agent.
AI Security Review
scanned 18d ago · by lpm-firewall-aiSource inspection found a version-gating preinstall hook and an explicit project initialization command that preserves existing files. The launcher loads the CLI after checking for its Pi runtime; no concrete attack behavior was identified.
Static reason
One or more suspicious static signals were detected.
Trigger
Package installation triggers the Node version check; the project init command runs only when invoked.
Impact
No confirmed harmful effect or attack surface was established.
Mechanism
The version check exits on unsupported Node versions. The init command creates project files only when they do not already exist.
AI rationale
Source inspection found a version-gating preinstall hook and an explicit project initialization command that preserves existing files. The launcher loads the CLI after checking for its Pi runtime; no concrete attack behavior was identified.
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, not a payload installer.
- The project init command operates on the current project and creates the agent instructions file only when it is absent.
- The launcher checks for the Pi runtime and then loads the bundled CLI.
- The CLI loads a working-directory .env file and ignores errors when none is present.
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" || 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
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@0.5.49.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.49 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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