registry / AI-agent capability abuse / @chem-x/create-chemx / 26.9.16-41

@chem-x/create-chemx@26.9.16-41

Chemical X Protocol: Private drop-in architecture starter kit and capsule generator

AI Security Review

scanned 11d ago · by lpm-firewall-ai

The source supports a warning for explicit agent configuration capability: setup can alter AI-facing project configuration and register a first-party MCP server. The install hook points to a missing file, so this does not establish an active install-time attack.

Static reason

One or more suspicious static signals were detected.; source closely matched a different package identity

Trigger

A user runs the setup wizard or the install-mcp command.

Impact

This can influence project AI-agent search behavior and enable the package’s MCP server in supported editors.

Mechanism

Setup may append a query-first directive to an existing AGENTS.md and write the named Chemical X MCP server into Cursor and VS Code configuration.

AI rationale

Evidence

cli/installer.jscli/mcp/installer.jscli/mcp/installer.spec.jscli/index.jsAGENTS.md.cursor/mcp.json.vscode/mcp.json

Decision evidence

public snapshot

AI called this Suspicious at 83.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The postinstall hook points to a script absent from the package snapshot, and the package does not declare itself as a runtime dependency.
An installer appends instructions to an existing AGENTS.md that steer AI agents to use the package’s query command before broad searches.
The setup wizard offers MCP and query configuration; a separate install-mcp command invokes MCP setup directly.
MCP setup writes a Chemical X server entry into project Cursor and VS Code configuration; its test verifies those entries.
The MCP installer target snippets and test show package-aligned configuration behavior, with no evidence of credential forwarding or a remote payload in these paths.

Evidence against

The inspected configuration behavior is user-invoked through setup commands and targets a named Chemical X MCP server.
The postinstall command references scripts/postinstall.mjs, which is absent from the inspected package file list.

Behavioral surface

Source

ChildProcessEnvironmentVarsFilesystem

Source & flagged code

7 flagged

package.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 unpkg

cli/navigator-share.jsView file

2import path from 'node:path'; L3: import { spawnSync } from 'node:child_process'; L4: import {

High

Child Process

Package source references child process execution.

cli/navigator-share.jsView on unpkg · L2

cli/terminal.jsView file

10} else if (platform === "win32") { L11: spawnSync("cmd.exe", ["/c", "start", '""', url], { stdio: "ignore", timeout: 3000 }); L12: } else {

High

Shell

Package source references shell execution.

cli/terminal.jsView on unpkg · L10

cli/license.jsView file

3import os from 'node:os'; L4: import { spawnSync } from 'node:child_process'; L5: import { ... L17: L18: export const API_BASE = process.env.CHEMICAL_X_API_URL || 'https://chemicalx.xophz.com'; L19: export const GATEKEEPER_API_URL = process.env.COMPASS_GATEKEEPER_URL || 'https://mycompassconsulting.com/wp-json/compass/v1/gatekeeper';

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

cli/license.jsView on unpkg · L3

cli/scaffold.jsView file

•Manifest-trigger-reachable source links an external AI-agent control path to a behavior-bearing write operation. import fs from 'node:fs'; import path from 'node:path'; import { hasgum, guminput, promptquestion, renderbanner } from './terminal.js'; import { obtainlicensekey, fetchstarterkitfiles, loadlocalblueprintfiles } from './license.js'; export const runscaffold = async (projectname, rawargs = [], onrunaudit = null) => { renderbanner('chemical x: molecular architecture scaffolder (npm create chemx)'); const licensekey = await obtainlicensekey(rawargs, onrunaudit); let iscommunity = false; let files = {}; if (!licensekey) { process.stdout.write( '\n\x1b[38;2;98;201;255m⚡ chemical x: community edition (free)\x1b[0m\n' + 'the community version is free because

High

Trigger Reachable External Ai Agent Control Surface Mutation

Manifest-trigger-reachable source writes behavior-bearing configuration into a user or project AI-agent control surface.

cli/scaffold.jsView on unpkg

cli/audit/social-git.jsView file

•matchType = package_source_clone_identity_mismatch matchedPackage = create-chemx@26.9.14-1358 matchedPath = cli/audit.js matchedIdentity = npm:Y3JlYXRlLWNoZW14:26.9.14-1358 similarity = 0.757 shingleOverlap = 53 summary = source files closely matched a different published package identity

High

Package Source Clone Identity Mismatch

Package source closely matches a different published package identity; review for dependency-confusion or copied-code abuse.

cli/audit/social-git.jsView on unpkg

Source & flagged code

7 flagged · loading source

package.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 unpkg

cli/navigator-share.jsView file

2import path from 'node:path'; L3: import { spawnSync } from 'node:child_process'; L4: import {

High

Child Process

Package source references child process execution.

cli/navigator-share.jsView on unpkg · L2

Findings

6 High4 Medium4 Low

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processcli/navigator-share.js

HighShellcli/terminal.js

HighSame File Env Network Executioncli/license.js

HighTrigger Reachable External Ai Agent Control Surface Mutationcli/scaffold.js

HighPackage Source Clone Identity Mismatchcli/audit/social-git.js

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to @chem-x/create-chemx@26.9.16-41.

See all versions of @chem-x/create-chemx for other recorded verdicts.

Review the evidence and your use of @chem-x/create-chemx@26.9.16-41 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: 2026-10-12 06:03:34.536Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Related packages

More from @chem-x

Behavioral surface

Related packages

More from @chem-x

Source & flagged code