registry / @companion-ai/feynman / 0.5.18
@companion-ai/feynman@0.5.18
Research-first CLI agent built on Pi and alphaXiv
AI Security Review
scanned 26d ago · by lpm-firewall-aiThe lifecycle hook performs a Node version check, and the reviewed configuration writes are bounded setup behavior. No concrete attack was established in the inspected source.
Static reason
One or more suspicious static signals were detected.
Trigger
Package installation runs the preinstall version check; running the CLI starts its setup, and invoking the init command creates project notes and an AGENTS.md when absent.
Impact
No confirmed malicious effect or attack surface was established from the reviewed behavior.
Mechanism
The preinstall script checks the installed Node version and exits if unsupported. CLI setup initializes Feynman’s agent directory, and the project init command creates only its named project files when absent.
AI rationale
The lifecycle hook performs a Node version check, and the reviewed configuration writes are bounded setup behavior. No concrete attack was established in the inspected source.
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; its source prints an error and exits for unsupported versions.
- The Hugging Face helper reads an optional token from environment variables and sends it to the fixed Hugging Face API.
- Project initialization is an explicit `init` command and creates project notes and an AGENTS.md only when absent.
- CLI startup initializes Feynman’s home and agent directory; inspected setup copies a bundled keybindings file only when absent and migrates legacy files.
Evidence against
- No inspected source showed credential collection for an unrelated recipient, hidden execution, or unconsented broad agent configuration mutation.
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@0.5.18.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.18 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.