registry / @companion-ai/feynman / 0.5.42
@companion-ai/feynman@0.5.42
The open source AI research agent.
AI Security Review
scanned 22d ago · by lpm-firewall-aiThe preinstall hook only enforces the supported Node version, and the launcher loads the CLI after checking for its Pi runtime. The inspected project writes require an explicit command, while the disclosed first-party telemetry does not export prompts or research content.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
Package installation runs the preinstall Node version check; a user can invoke the registered `/init` command.
Impact
The inspected behavior does not establish unauthorized changes, credential disclosure, or private research-content export.
Mechanism
The version check exits on unsupported Node versions. The command creates project files under the current working directory only when they are absent.
AI rationale
The preinstall hook only enforces the supported Node version, and the launcher loads the CLI after checking for its Pi runtime. The inspected project writes require an explicit command, while the disclosed first-party telemetry does not export prompts or research content.
Decision evidence
public snapshotAI called this Clean at 94.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The preinstall hook runs a Node version check that exits only when the installed Node version is unsupported.
- The launcher checks its Pi runtime dependencies before loading the CLI; the CLI entrypoint proceeds to the application main function.
- The research extension registers `/init` as a command; its handler creates project files under the current working directory only when they do not already exist.
- Runtime telemetry is disclosed, can be disabled, and sends metadata rather than prompts, model output, paper content, or tool arguments.
Evidence against
- The CLI initializes first-party PostHog usage telemetry by default, and its notice says error messages and stack traces may be sent with the home folder redacted.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsTelemetry
Source & flagged code
6 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
4 High5 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighSandbox Evasion Gated Capabilitybin/feynman.js
HighSemantic Analysis Limiteddist/cli.js#virtual:normalized:round1
HighPrevious Version Dangerous Deltadist/cli.js
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@0.5.42.
See all versions of @companion-ai/feynman for other recorded verdicts.
- Review the evidence and your use of @companion-ai/feynman@0.5.42 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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