rakumux@0.1.35
Terminal session manager for coding agents, with a fast TUI, a background session daemon and an MCP server
AI Security Review
scanned 5d ago · by lpm-firewall-aiThe automatic install behavior copies this package’s scripts and binaries into its own distribution directory. The runtime update check is limited to the TUI and queries package versions, consistent with the package’s stated purpose.
Static reason
One or more suspicious static signals were detected.
Trigger
Postinstall stages assets; invoking the TUI starts a background update check.
Impact
No host, user, project data, credentials, or account actions were identified in the reviewed behavior.
Mechanism
The update check queries package versions through npm or Homebrew and stores a daily check timestamp locally.
AI rationale
The automatic install behavior copies this package’s scripts and binaries into its own distribution directory. The runtime update check is limited to the TUI and queries package versions, consistent with the package’s stated purpose.
Evidence
dist/~/.cache/rakumux/last_update_check
Network endpoints1
github.com
Decision evidence
public snapshotAI called this Clean at 91.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The postinstall hook stages the package’s scripts and platform binaries into its own dist directory.
- The launcher checks for updates only when opening the TUI; the check queries the package’s version through npm or Homebrew.
- The README describes the package as a terminal session manager and documents its install and update commands.
Evidence against
Behavioral surface
ChildProcessEnvironmentVarsFilesystemShell
UrlStrings
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 unpkg•scripts.postinstall = node install.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkginstall.jsView file
12// (rakumux-mcp, rakumux-api: no launcher, and nothing but the binary may
L13: // write to stdout, which carries MCP messages).
L14: //
...
L17:
L18: const { execSync, spawnSync } = require('child_process');
L19: const fs = require('fs');
...
L47:
L48: const packageRoot = __dirname;
L49: const resourcesDir = path.join(packageRoot, 'resources');
...
L122: function platformKey() {
L123: return `${process.platform}-${process.arch}`;
L124: }
High
Sandbox Evasion Gated Capability
Findings
2 High5 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighSandbox Evasion Gated Capabilityinstall.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumEnvironment Vars
MediumShips Native Binaryresources/prebuilt/macos-intel/rakumux-ptyd
MediumShips Build Helperresources/scripts/rakumux.sh
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowUrl Strings
LowSuspicious Lifecycle Evidenceinstall.js
LowAi Review Evidenceresources/scripts/rakumux.sh
Affected versions and remediation
This report applies to rakumux@0.1.35.
See all versions of rakumux for other recorded verdicts.
- Review the evidence and your use of rakumux@0.1.35 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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