mega-code-dev@0.5.0
Mega Code CLI - corporate SSO login for Claude Code (dev environment)
AI Security Review
scanned 15d ago · by lpm-firewall-aiThe automatic postinstall behavior installs plugins into Claude Code's user scope, including one from a third-party marketplace, without an explicit setup command. This is an unconsented install-time agent control-surface change and warrants blocking.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Installing the npm package when Claude Code is available and MEGA_CODE_SKIP_PLUGINS is unset or false.
Impact
Third-party plugin code may be added to the user's Claude Code environment without a separate user confirmation.
Mechanism
The hook adds configured marketplaces and runs Claude Code's user-scope plugin install command for Mega-SDD and Superpowers.
Policy narrative
During npm installation, the postinstall hook checks for Claude Code and then adds marketplaces and installs plugins in user scope. Plugin installation is skipped only when the user sets MEGA_CODE_SKIP_PLUGINS=1. This creates an unconsented install-time change to the user's AI agent environment, including a plugin sourced from a third-party marketplace.
AI rationale
The automatic postinstall behavior installs plugins into Claude Code's user scope, including one from a third-party marketplace, without an explicit setup command. This is an unconsented install-time agent control-surface change and warrants blocking.
Evidence
package.jsonscripts/postinstall.mjs
Network endpoints2
github.com/FarhanRiuzaki/Mega-SDD.gitgithub.com/obra/superpowers.git
Decision evidence
public snapshotAI identified this as a dangerous AI-agent capability at 96.0% confidence with low false-positive risk.
Evidence for policy risk
- package.json runs scripts/postinstall.mjs automatically after installation.
- The postinstall script adds marketplaces and installs Claude Code plugins at user scope when Claude Code is present; the skip variable is opt-in.
- The automatic setup uses the Mega-SDD and Superpowers marketplaces, including the third-party obra/superpowers.git source.
Evidence against
- Plugin setup can be skipped with MEGA_CODE_SKIP_PLUGINS=1.
Behavioral surface
ChildProcessEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsMinifiedPossibleObfuscationUrlStrings
NoLicense
Source & flagged code
9 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node scripts/postinstall.mjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node scripts/postinstall.mjs
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgdist/bin/bf.jsView file
2import{createRequire as __cr}from'node:module';const require=__cr(import.meta.url);
L3: var pa=Object.create;var vn=Object.defineProperty;var Da=Object.getOwnPropertyDescriptor;var ma=Object.getOwnPropertyNames;var ga=Object.getPrototypeOf,ba=Object.prototype.hasOwnPr...
L4: `)}displayWidth(e){return Bn(e).length}styleTitle(e){return e}styleUsage(e){return e.split(" ").map(t=>t==="[options]"?this.styleOptionText(t):t==="[command]"?this.styleSubcommandT...
...
L14: (Did you mean one of ${n.join(", ")}?)`:n.length===1?`
L15: (Did you mean ${n[0]}?)`:""}An.suggestSimilar=Ba});var Ln=y(Ft=>{var Sa=se("node:events").EventEmitter,yt=se("node:child_process"),ye=se("node:path"),F0=se("node:fs"),I=se("node:pr...
L16: - specify the name in Command constructor or using .name()`);return t=t||{},t.
Findings
2 Critical7 High4 Medium6 Low
CriticalCredential Exfiltrationdist/bin/bf.js
CriticalTrigger Reachable Dangerous Capabilitydist/bin/bf.js
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processdist/bin/bf.js
HighShell
HighSame File Env Network Executiondist/bin/bf.js
HighCommand Output Exfiltrationdist/bin/bf.js
HighTrigger Reachable Credential Exfiltrationdist/bin/bf.js
HighTrigger Reachable Command Output Exfiltrationdist/bin/bf.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumNetwork
MediumEnvironment Vars
Medium
Affected versions and remediation
This report applies to mega-code-dev@0.5.0.
See all versions of mega-code-dev for other recorded verdicts.
- Avoid installing mega-code-dev@0.5.0. 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: .
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