registry / @companion-ai/feynman / 0.5.48
@companion-ai/feynman@0.5.48
The open source AI research agent.
AI Security Review
scanned 19d ago · by lpm-firewall-aiThe source resolves the install-time and project-configuration findings as ordinary version validation and explicit, non-overwriting scaffolding. The inspected telemetry is disclosed, opt-out usage reporting; no concrete malicious behavior was established.
Static reason
One or more suspicious static signals were detected.
Trigger
Package installation runs the version check; project files are created only when a user invokes the init command.
Impact
No malicious effect was identified in the inspected behavior.
Mechanism
The launcher loads the bundled CLI after checking for Pi. The CLI sends disclosed usage telemetry to its configured PostHog host, with an opt-out.
AI rationale
The source resolves the install-time and project-configuration findings as ordinary version validation and explicit, non-overwriting scaffolding. The inspected telemetry is disclosed, opt-out usage reporting; no concrete malicious behavior was established.
Network endpoints1
us.i.posthog.com
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 runs a Node version check during preinstall; the check compares the installed Node.js version with the minimum and exits if unsupported.
- The cited project.ts location belongs to the explicit init command, which targets the current project’s AGENTS.md and notes/session-logs.
- The init command creates those generated files only when they are absent, preserving existing files.
- bin/feynman.js checks for the Pi runtime and then imports the bundled CLI.
- The CLI discloses its PostHog usage telemetry and opt-out; its metadata records command and option indicators, and the configured default host is us.i.posthog.com.
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@0.5.48.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.48 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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