registry / @companion-ai/feynman / 0.5.53
@companion-ai/feynman@0.5.53
The open source AI research agent.
AI Security Review
scanned 13d ago · by lpm-firewall-aiSource inspection found a version-check install hook, user-invoked project setup that preserves an existing AGENTS.md, and alphaXiv authentication directed to its intended service. The scanner signals do not establish malicious behavior.
Static reason
One or more suspicious static signals were detected.
Trigger
Package installation runs the preinstall version check; project file setup runs when a user invokes the init command.
Impact
The inspected behavior supports normal runtime compatibility, research project setup, and intended-service login; it establishes no attack surface.
Mechanism
The launcher gates CLI startup on the Node version. The init command creates session directories and adds AGENTS.md only if it does not already exist. The alphaXiv login path uses alphaXiv authentication endpoints.
AI rationale
Source inspection found a version-check install hook, user-invoked project setup that preserves an existing AGENTS.md, and alphaXiv authentication directed to its intended service. The scanner signals do not establish malicious behavior.
Evidence
package.jsonbin/feynman.jsdist/cli.jsextensions/research-tools/project.ts.lpm-dependency-evidence-27655292-af3e-4e33-bdbb-219e977320ef/1/npm-linux/src/lib/auth.js
Network endpoints1
api.alphaxiv.org/auth
Decision evidence
public snapshotAI called this Clean at 94.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The install hook only runs a Node version check; the launcher checks the runtime version before loading the CLI.
- The project setup command creates research session folders and writes AGENTS.md only when it is absent.
- The alphaXiv library exposes authentication helpers, and its auth flow targets alphaXiv’s authentication service; the CLI calls login from its alpha login command.
- The inspected dependencies provide prompt, alphaXiv research, and XML parsing functionality.
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@0.5.53.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.53 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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