registry / @companion-ai/feynman / 0.5.25
@companion-ai/feynman@0.5.25
Research-first CLI agent built on Pi and alphaXiv
AI Security Review
scanned 26d ago · by lpm-firewall-aiSource inspection shows the preinstall hook performs a Node version check, while project configuration writes require explicit init invocation and preserve existing AGENTS.md. The flagged child-process and credential behavior is consistent with launching the bundled CLI and accessing Hugging Face; no malicious attack surface was established.
Static reason
One or more suspicious static signals were detected.
Trigger
Installation runs the Node version check; the project file setup runs only when a user invokes the init command.
Impact
No malicious effect was established from the inspected source.
Mechanism
The init command preserves an existing AGENTS.md, and the inspected credentialed requests target Hugging Face.
AI rationale
Source inspection shows the preinstall hook performs a Node version check, while project configuration writes require explicit init invocation and preserve existing AGENTS.md. The flagged child-process and credential behavior is consistent with launching the bundled CLI and accessing Hugging Face; no malicious attack surface was established.
Network endpoints2
huggingface.co/apihuggingface.co
Decision evidence
public snapshotAI called this Clean at 96.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- package.json preinstall runs a Node version check; the check exits only when the Node version is unsupported.
- The project init command creates AGENTS.md only when it does not already exist.
- The CLI checks for its Pi peer dependencies, then loads the bundled CLI entrypoint.
- The bundled CLI loads a cwd .env file and launches the bundled alpha CLI with the current environment and working directory.
- Hugging Face requests use a fixed Hugging Face endpoint and send the Hugging Face token there when configured.
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") {
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@0.5.25.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.25 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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