ux-atlas@0.1.2
UX skills for agents. Each skill is skills/<name>/SKILL.md.
AI Security Review
scanned 12d ago · by lpm-firewall-aiThe manifest activates a postinstall script that mutates project-level AI-agent control files without a consent guard. This meets the policy for blocking unconsented install-time control-surface mutation.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
A local npm install that runs the package's postinstall hook.
Impact
Project agents may follow the newly added package instructions and skill references.
Mechanism
The hook resolves the project root, then upserts content in AGENTS.md and CLAUDE.md without an installer consent prompt.
Policy narrative
A local install runs the postinstall hook, which writes package-provided pointers into the consumer project's AGENTS.md and CLAUDE.md. This changes the project's agent instructions without consent during installation.
AI rationale
The manifest activates a postinstall script that mutates project-level AI-agent control files without a consent guard. This meets the policy for blocking unconsented install-time control-surface mutation.
Evidence
package.jsonscripts/init.mjsAGENTS.mdCLAUDE.md.atlas/config.json.atlas/README.md
Decision evidence
public snapshotAI identified this as a dangerous AI-agent capability at 97.0% confidence with low false-positive risk.
Evidence for policy risk
- package.json runs scripts/init.mjs from postinstall.
- For local installs, the installer targets the consumer project's AGENTS.md and CLAUDE.md and upserts package-provided pointers into them.
- The postinstall path calls applyPointers and ensureRecordConfig without a consent check in the installer.
Evidence against
Behavioral surface
EnvironmentVarsFilesystem
HighEntropyStrings
Source & flagged code
6 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node scripts/init.mjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg23"scripts": {
"lint": "eslint .",
"postinstall": "node scripts/init.mjs",
"index": "node scr
High
Suspicious Lifecycle Evidence
package.json runs scripts/init.mjs from postinstall.
package.jsonView on unpkg · L23scripts/init.mjsView file
7const END = '<!-- /ux-atlas -->';
L8: const instructions = 'node_modules/ux-atlas/instructions/AGENTS.md';
L9: const skills = 'node_modules/ux-atlas/skills/**/SKILL.md';
...
L72: if (!next.endsWith('\n')) next += '\n';
L73: fs.writeFileSync(filePath, next);
L74: }
...
L86: if (!existing.includes(legacyBriefLine)) return;
L87: fs.writeFileSync(filePath, existing.split(legacyBriefLine).join('').replace(/^\n+/, ''));
L88: }
...
L90: export function applyPointers(projectRoot) {
L91: const agents = path.join(projectRoot, 'AGENTS.md');
L92: const claude = path.join(projectRoot, 'CLAUDE.md');
Findings
1 Critical5 High2 Medium3 Low
CriticalAi Agent Control Hijackscripts/init.mjs
HighInstall Time Lifecycle Scriptspackage.json
HighExternal Ai Agent Control Surface Mutationscripts/init.mjs
HighSuspicious Lifecycle Evidencepackage.json
HighAi Review Evidencescripts/init.mjs
HighSuspicious Lifecycle Evidencescripts/init.mjs
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to ux-atlas@0.1.2.
See all versions of ux-atlas for other recorded verdicts.
- Avoid installing ux-atlas@0.1.2. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.