droid@0.219.0
Factory Droid CLI - AI-powered software engineering agent
AI Security Review
scanned 2mo ago · by lpm-firewall-aiThe install-time download and executable setup are notable but are narrowly tied to fixed same-vendor platform packages and the package's CLI. Static inspection found no concrete malicious behavior or lifecycle self-dependency chain.
Static reason
One or more suspicious static signals were detected.
Trigger
npm installation runs the postinstall hook; the downloaded binary runs only when the user invokes droid.
Impact
It can install and link the package's platform-specific executable, but no source evidence shows exfiltration, persistence outside the package, or foreign control-surface mutation.
Mechanism
Same-version platform-binary retrieval and local CLI shim optimization.
AI rationale
The install-time download and executable setup are notable but are narrowly tied to fixed same-vendor platform packages and the package's CLI. Static inspection found no concrete malicious behavior or lifecycle self-dependency chain.
Evidence
bin/droid
Network endpoints1
registry.npmjs.org
Decision evidence
public snapshotAI called this Clean at 90.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The postinstall hook automatically runs install.js.
- When optional dependencies are absent, the installer fetches a same-version platform package from the npm registry and writes its binary.
- The installer can send NPM_TOKEN only to an npmjs.org host.
- The install hook replaces its own bin/droid shim with a link to the platform binary.
Evidence against
- The fetched package is selected from the package's fixed same-vendor platform mapping.
- No self-dependency, secret harvesting, non-registry endpoint, evaluator-directed text, or foreign configuration write was found.
- The binary execution path is the user-invoked droid command.
Behavioral surface
ChildProcessEnvironmentVarsFilesystemNetwork
HighEntropyStringsUrlStrings
NoLicense
Source & flagged code
6 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
5 High4 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processinstall.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
LowNo License
Affected versions and remediation
This report applies to droid@0.219.0.
See all versions of droid for other recorded verdicts.
- Review the evidence and your use of droid@0.219.0 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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