droid@0.224.1
Factory Droid CLI - AI-powered software engineering agent
AI Security Review
scanned 1mo ago · by lpm-firewall-aiThe postinstall script is a package-aligned native-binary shim, the same pattern used by other published CLIs, and it only downloads the pinned Factory platform package from the npm registry. It does not harvest secrets, write foreign agent configuration, or persist outside its own bin path.
Static reason
One or more suspicious static signals were detected.
Trigger
npm postinstall runs node install.js after the package is installed.
Impact
The consumer project and foreign agent control files are not mutated. The installed command is the platform CLI binary the package declares.
Mechanism
The script resolves a pinned @factory/cli platform package, optionally downloads its tarball from registry.npmjs.org, writes the binary under bin, and hard-links or symlinks it to bin/droid. PATH advice is printed only.
AI rationale
The postinstall script is a package-aligned native-binary shim, the same pattern used by other published CLIs, and it only downloads the pinned Factory platform package from the npm registry. It does not harvest secrets, write foreign agent configuration, or persist outside its own bin path.
Evidence
bin/droid
Network endpoints1
registry.npmjs.org
Decision evidence
public snapshotAI called this Clean at 86.0% confidence as Benign with medium false-positive risk.
Evidence for AI clean decision
- postinstall only runs local node install.js, and optionalDependencies pin same-version @factory/cli platform packages.
- The fallback downloader requests https://registry.npmjs.org for the selected platform package and this package version.
- The extracted file is written only under this package bin directory, then bin/droid is replaced with a hard link or symlink to that binary.
- The global PATH helper only prints a shell hint and does not write profile or agent config files.
Evidence against
- postinstall may run the platform binary with --version and may run npm prefix -g to locate the global bin directory.
- NPM_TOKEN is sent only when the request hostname string contains npmjs.org, including on followed redirects.
- AVX2 detection on Windows runs a local PowerShell feature check and does not send the result off-box.
Behavioral surface
ChildProcessEnvironmentVarsFilesystemNetworkShell
Source & flagged code
7 flaggedpackage.jsonView file
•scripts.postinstall = node install.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg9scripts.postinstall = node install.js
Install-time code downloads an unverified remote native executable, stages it locally, activates an executable path, and exposes it to process execution.
L9: *
L10: * Based on esbuild's approach: https://github.com/evanw/esbuild/pull/1621
L11: * and Sentry's guide: https://sentry.engineering/blog/publishing-binaries-on-npm
L12: *
...
L19: const path = require('path');
L20: const https = require('https');
L21: const zlib = require('zlib');
...
L27: getBinaryName,
L28: getBinaryPath,
L29: detectAVX2Support,
...
L50:
L51: function validateBinaryVersion(binaryPath) {
High
Unverified Remote Native Payload Install
Install-time source downloads a native archive from a fixed external host without transport verification, extracts it, and installs an executable payload.
package.jsonView on unpkg · L9•scripts.postinstall = node install.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
Findings
6 High4 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processinstall.js
HighShellinstall.js
HighSame File Env Network Executioninstall.js#virtual:normalized:round1
HighUnverified Remote Native Payload Installpackage.json
HighSemantic Analysis Limitedinstall.js#virtual:normalized:round1
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Low
Affected versions and remediation
This report applies to droid@0.224.1.
See all versions of droid for other recorded verdicts.
- Review the evidence and your use of droid@0.224.1 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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