registry / @companion-ai/feynman / 0.5.50
@companion-ai/feynman@0.5.50
The open source AI research agent.
AI Security Review
scanned 17d ago · by lpm-firewall-aiThe preinstall hook only checks the Node version, and the flagged project writes require an explicit init command and preserve existing AGENTS.md. The inspected launcher and platform branch show fixed CLI loading and a Windows shell notice; no malicious behavior was established.
Static reason
One or more suspicious static signals were detected.
Trigger
Installation runs the Node-version check; project scaffolding runs when the user invokes init.
Impact
No malicious effect was identified.
Mechanism
The installer checks runtime compatibility, while init creates missing project files and preserves existing AGENTS.md.
AI rationale
The preinstall hook only checks the Node version, and the flagged project writes require an explicit init command and preserve existing AGENTS.md. The inspected launcher and platform branch show fixed CLI loading and a Windows shell notice; no malicious behavior was established.
Decision evidence
public snapshotAI called this Clean at 95.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The preinstall hook runs a Node-version check; unsupported versions receive a message and exit.
- The launcher checks Node compatibility before loading a fixed bundled CLI entrypoint.
- Project scaffolding is registered as an init command and resolves its target paths from the selected project directory.
- The init command creates AGENTS.md only when it is absent and keeps an existing file.
- The flagged platform branch checks for a missing Windows shell and displays a notice.
- The CLI discloses anonymous usage telemetry, and its configuration can disable telemetry before client initialization.
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@0.5.50.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.50 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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