registry / @doist/twist-cli / 3.0.15
@doist/twist-cli@3.0.15
TypeScript CLI for Twist
AI Security Review
scanned 4d ago · by lpm-firewall-aiThe postinstall hook silently updates existing global agent skill files, creating a real lifecycle risk for users who customized them. The behavior is limited to this package's own Twist CLI skill, so the evidence supports a warning rather than a block.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review
Trigger
Installing the package with lifecycle scripts enabled.
Impact
An existing skill file, including local customizations, can be replaced without a separate user command.
Mechanism
The postinstall routine checks configured agent skill locations and rewrites existing twist-cli skill files using the package-provided content.
AI rationale
The postinstall hook silently updates existing global agent skill files, creating a real lifecycle risk for users who customized them. The behavior is limited to this package's own Twist CLI skill, so the evidence supports a warning rather than a block.
Evidence
package.jsonscripts/postinstall.jsdist/postinstall.jsdist/lib/skills/update-installed.jsdist/lib/skills/create-installer.jsdist/lib/skills/index.jsdist/lib/skills/content.js~/.claude/skills/twist-cli/SKILL.md~/.codex/skills/twist-cli/SKILL.md~/.cursor/skills/twist-cli/SKILL.md
Decision evidence
public snapshotAI called this Suspicious at 90.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- package.json registers a postinstall hook, and its script imports the compiled postinstall entrypoint.
- The postinstall entrypoint automatically updates installed skills using global paths and runs an auth migration.
- The updater checks which skills exist before updating them.
- Skill paths are under the home directory in agent-specific directories, ending in the package-defined skill name.
- Updating an existing skill writes the package-provided content without an explicit user command or force option.
- The installed skill is named twist-cli and is described as the Twist CLI integration.
Evidence against
- The automatic update is limited to existing, specifically named Twist CLI skills; inspected code did not show mutation of unrelated agent settings or a remote payload.
Behavioral surface
ChildProcessDynamicRequireEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
6 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node scripts/postinstall.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node scripts/postinstall.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgscripts/check-skill-sync.jsView file
17const modulePath = pathToFileURL(join(root, 'dist/lib/skills/content.js')).href
L18: const { SKILL_FILE_CONTENT } = await import(modulePath)
L19: const expected = SKILL_FILE_CONTENT
Medium
Dynamic Require
Package source references dynamic require/import behavior.
scripts/check-skill-sync.jsView on unpkg · L17Findings
1 Critical3 High5 Medium5 Low
CriticalAi Agent Control Hijackdist/lib/skills/create-installer.js
HighInstall Time Lifecycle Scriptspackage.json
HighKnown Malware Source Similaritydist/lib/input.js
HighKnown Malware Source Fingerprint Signaturedist/lib/input.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumDynamic Requirescripts/check-skill-sync.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowNon Install Lifecycle Scripts
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @doist/twist-cli@3.0.15.
See all versions of @doist/twist-cli for other recorded verdicts.
- Review the evidence and your use of @doist/twist-cli@3.0.15 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.