registry / @companion-ai/feynman / 0.5.17
@companion-ai/feynman@0.5.17
Research-first CLI agent built on Pi and alphaXiv
AI Security Review
scanned 26d ago · by lpm-firewall-aiSource inspection found a version-check-only preinstall hook, a peer dependency check in the CLI launcher, explicit user-invoked project setup, and Hugging Face requests tied to the service that supplies the optional token. These behaviors do not establish malicious activity.
Static reason
One or more suspicious static signals were detected.
Trigger
Installation runs the declared preinstall version check; CLI behavior runs when the user starts Feynman, and project initialization requires invoking its init command.
Impact
No confirmed attack surface was established in the inspected source.
Mechanism
The init command creates missing project guidance and notes files. Hugging Face tools use an optional token only in requests built for the fixed Hugging Face API host.
AI rationale
Source inspection found a version-check-only preinstall hook, a peer dependency check in the CLI launcher, explicit user-invoked project setup, and Hugging Face requests tied to the service that supplies the optional token. These behaviors do not establish malicious activity.
Evidence
AGENTS.mdnotes/notes/session-logs/README.md
Network endpoints2
huggingface.co/apihuggingface.co
Decision evidence
public snapshotAI called this Clean at 88.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The npm preinstall hook only runs a Node version check.
- The CLI checks for its Pi peer dependencies before loading the bundled CLI.
- The project init command runs only when invoked and creates missing research notes and guidance files.
- Hugging Face tools send optional HF tokens to requests targeting the fixed Hugging Face API host.
- The bundled CLI loads a working-directory .env file at startup.
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@0.5.17.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.17 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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