registry / @companion-ai/feynman / 0.5.29
@companion-ai/feynman@0.5.29
Research-first CLI agent built on Pi and alphaXiv
AI Security Review
scanned 26d ago · by lpm-firewall-aiInspected source shows a routine Node-version preinstall check and a project-scoped scaffold command that preserves an existing AGENTS.md. The scanner hints do not establish malicious behavior.
Static reason
One or more suspicious static signals were detected.
Trigger
npm installation runs the preinstall version check; a user invoking /init activates the project scaffold writes.
Impact
No confirmed malicious effect or attack surface was established.
Mechanism
The preinstall script compares the installed Node version with a minimum. The /init handler creates project notes folders and adds AGENTS.md only if absent.
AI rationale
Inspected source shows a routine Node-version preinstall check and a project-scoped scaffold command that preserves an existing AGENTS.md. The scanner hints do not establish malicious behavior.
Evidence
AGENTS.mdnotes/notes/session-logs/README.md
Decision evidence
public snapshotAI called this Clean at 92.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- package.json limits its preinstall hook to running a Node-version check.
- The flagged AGENTS.md path is inside the explicitly registered /init command, which targets the current project directory.
- The /init command creates AGENTS.md only when it does not already exist.
- The CLI entry resolves required Pi peer dependencies before loading the bundled CLI.
- The bundled CLI contains a helper that starts the package-aligned alpha CLI with caller-provided arguments.
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@0.5.29.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.29 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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