3a-factory@4.2.2
Enterprise Feature-local Spec Package workflow for Claude, Gemini, and Cursor (3A-Factory)
AI Security Review
scanned 22d ago · by lpm-firewall-aiThe source prevents unconsented npm lifecycle mutation but exposes explicit-command agent control-surface writes. Under the supplied policy, this warrants a warning rather than publication blocking.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Explicit invocation of 3a-factory outside an automatic npm lifecycle.
Impact
Changes instructions available to coding agents in the target project, warranting a capability warning without evidence of an active attack.
Mechanism
Copies bundled instructions and configuration into the target project and generates agent commands and rules; force permits replacement of differing files.
AI rationale
The source prevents unconsented npm lifecycle mutation but exposes explicit-command agent control-surface writes. Under the supplied policy, this warrants a warning rather than publication blocking.
Evidence
dist/install.jsAGENTS.md.agents/configs/subagents.json.claude/commands.claude/skills.gemini/commands.cursor/rulesCLAUDE.mdGEMINI.md
Decision evidence
public snapshotAI called this Suspicious at 96.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- Explicit invocation writes Claude commands, Gemini commands, and Cursor rules into the selected project.
- The installer also installs AGENTS.md and shared agent configuration.
- npm postinstall invokes the installer, but its lifecycle guard exits before project scaffolding.
- Existing differing files are skipped unless force is enabled; forced updates receive backups by default.
Evidence against
- No credential harvesting, network requests, remote payload execution, or runtime self-dependency was identified in the inspected installer.
- Automatic npm lifecycle execution does not perform the agent configuration writes.
Behavioral surface
DynamicRequireEnvironmentVarsFilesystem
HighEntropyStrings
Source & flagged code
6 flagged · loading sourcepackage.jsonView file
•scripts.preinstall = node -e "const f=require('fs'),{execSync}=require('child_process');if(!f.existsSync('dist/install.js')&&f.existsSync('scripts/build.js'))execSync('node scripts/build.js',{stdio:'in...
Critical
Red Install Lifecycle Script
Install-time lifecycle script matches a deterministic static-gate block pattern.
package.jsonView on unpkg•scripts.postinstall = node dist/install.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node dist/install.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkg27"preinstall": "node -e \"const f=require('fs'),{execSync}=require('child_process');if(!f.existsSync('dist/install.js')&&f.existsSync('scripts/build.js'))execSync('node scripts/build.js',{stdio:'inherit'})\"",
"prepublishOnly": "npm run build",
"postinstall": "node dist/install.js"
},
"keywords": [
"3a-factory",
"claude
Findings
2 Critical1 High5 Medium4 Low
CriticalRed Install Lifecycle Scriptpackage.json
CriticalAi Agent Control Hijackdist/install.js
HighInstall Time Lifecycle Scriptspackage.json
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumDynamic Requiredist/install.js
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
MediumSuspicious Lifecycle Evidencepackage.json
LowNon Install Lifecycle Scripts
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to 3a-factory@4.2.2.
See all versions of 3a-factory for other recorded verdicts.
- Review the evidence and your use of 3a-factory@4.2.2 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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