pintumcp@1.2.1

Agent Alerts MCP — desktop notifications with sound for AI coding agents

AI Security Review

scanned 14d ago · by lpm-firewall-ai

The postinstall hook automatically configures the package's own MCP integration in detected AI tools, creating an agent extension lifecycle risk. The inspected behavior supports a warning, while no concrete malicious chain was established.

Static reason

One or more suspicious static signals were detected.

Trigger

Installing the package with npm runs its postinstall hook.

Impact

Detected tools may launch the package's Python server; no confirmed credential exposure or other malicious effect was established.

Mechanism

The hook runs the install command, which detects supported tools and writes a pintumcp MCP entry to their configuration.

AI rationale

Evidence

package.jsoninstall.jsbin/pintumcp.jslib/configure.js

Decision evidence

public snapshot

AI called this Suspicious at 88.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

package.json runs install.js from its postinstall hook.
install.js automatically invokes the package's install command.
The install command detects supported AI tools and configures the package's own MCP server in their settings.
The installer creates a Python virtual environment and installs dependencies.

Evidence against

The inspected setup adds a named pintumcp integration to detected tools; no credential collection or external endpoint was found in the inspected source.

Behavioral surface

Source

ChildProcessEnvironmentVarsFilesystemShell

Supply chainNo supply-chain packaging signals triggered.

ManifestNo manifest risk signals triggered.

scanned 6 file(s), 21.3 KB of source

Source & flagged code

8 flagged

package.jsonView file

Lines 1-30json

2 "name": "pintumcp",

3 "version": "1.2.1",

4 "description": "Agent Alerts MCP — desktop notifications with sound for AI coding agents",

5 "main": "bin/pintumcp.js",

6 "bin": {

7 "pintumcp": "bin/pintumcp.js"

8 },

9 "scripts": {

10 "postinstall": "node install.js"

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L10

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg · L10

11 },

12 "keywords": [

13 "mcp",

14 "notifications",

Medium

Suspicious Lifecycle Evidence

package.json runs install.js from its postinstall hook.

package.jsonView on unpkg · L9

15 "agent",

16 "alerts",

17 "claude",

18 "codex",

19 "opencode",

20 "mimocode",

21 "antigravity"

22 ],

23 "license": "MIT",

24 "files": [

25 "bin/",

26 "lib/",

27 "python/",

28 "install.js",

29 "!python/__pycache__"

30 ],

python/server.pyView file

•path = python/server.py kind = build_helper sizeBytes = 5433 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

python/server.pyView on unpkg

install.jsView file

Lines 1-18javascript

1#!/usr/bin/env node

3/**

4 * npm postinstall script.

5 * Runs `pintumcp install` automatically after npm install -g pintumcp.

6 */

8const { execSync } = require("child_process");

9const

bin/pintumcp.jsView file

Lines 31-71javascript

31 execSync("python --version", { stdio: "ignore" });

32 return "python";

33 } catch {}

34 return null;

35}

lib/configure.jsView file

Lines 88-128javascript

88 if (/^\s*\[/.test(lines[i])) { end = i; break; }

89 }

90 lines.splice(start, end - start);

91 return lines.

Source & flagged code

8 flagged · loading source

package.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 unpkg

9"scripts": { "postinstall": "node install.js" }, "keywords": [ "mcp", "notificatio

Medium

Suspicious Lifecycle Evidence

package.json runs install.js from its postinstall hook.

package.jsonView on unpkg · L9

python/server.pyView file

•

Findings

1 High9 Medium2 Low

HighInstall Time Lifecycle Scriptspackage.json

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumEnvironment Vars

MediumShips Build Helperpython/server.py

MediumStructural Risk Force Deep Review

MediumSuspicious Lifecycle Evidencepackage.json

MediumAi Review Evidenceinstall.js

MediumAi Review Evidencebin/pintumcp.js

MediumAi Review Evidencelib/configure.js

MediumSuspicious Dependency Evidencebin/pintumcp.js

LowScripts Present

LowFilesystem

Affected versions and remediation

This report applies to pintumcp@1.2.1.

See all versions of pintumcp for other recorded verdicts.

Review the evidence and your use of pintumcp@1.2.1 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: 2026-10-09 05:01:17.674Z (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

Runtime surface

Behavioral surface

Source & flagged code