registry / @spuentesp/lain-mcp / 0.10.0

@spuentesp/lain-mcp@0.10.0

High-performance knowledge graph MCP server for AI coding agents with semantic search.

AI Security Review

scanned 9d ago · by lpm-firewall-ai

The install-time download is a package-aligned binary setup from its declared GitHub repository. Source inspection shows archive checksum and binary-version checks, with no concrete attack behavior established.

Static reason

One or more suspicious static signals were detected.

Trigger

Installing the package runs its postinstall, except when the installer skips in CI or npm scripts are disabled.

Impact

The inspected code supports the package's binary installation; no malicious behavior was established.

Mechanism

The installer fetches release assets over HTTPS, verifies the archive against the release checksum manifest, and checks the executable version.

AI rationale

Evidence

package.jsonscripts/install.jsscripts/runtime.js

Network endpoints1

github.com

Decision evidence

public snapshot

AI called this Clean at 94.0% confidence as Benign with low false-positive risk.

Evidence for AI clean decision

package.json declares a postinstall command that runs scripts/install.js.
The installer calls the binary setup unless CI or disabled npm scripts cause it to skip.
The installer downloads release assets from the package's GitHub repository over HTTPS.
The runtime checks the downloaded archive against its SHA-256 manifest and verifies the binary's version.

Evidence against

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 5 file(s), 21.4 KB of source, external domains: github.com

Source & flagged code

5 flagged

package.jsonView file

Lines 1-46json

2 "name": "@spuentesp/lain-mcp",

3 "version": "0.10.0",

4 "mcpName": "io.github.spuentesp/lain",

5 "description": "High-performance knowledge graph MCP server for AI coding agents with semantic search.",

6 "keywords": [

7 "mcp",

8 "model-context-protocol",

9 "ai",

10 "coding",

11 "knowledge-graph",

12 "rust",

13 "semantic-search",

High

Unverified Remote Native Payload Install

Install-time source downloads a native archive from a fixed external host without transport verification, extracts it, and installs an executable payload.

package.jsonView on unpkg · L2

14 "code-analysis"

15 ],

16 "license": "MIT",

17 "homepage": "https://github.com/spuentesp/lain",

18 "repository": {

19 "type": "git",

20 "url": "https://github.com/spuentesp/lain.git"

21 },

22 "bin": {

23 "lain": "./bin/lain.js"

24 },

25 "files": [

26 "bin/",

27 "scripts/"

28 ],

29 "os": [

30 "darwin",

31 "linux",

32 "win32"

33 ],

34 "cpu": [

35 "x64",

36 "arm64"

37 ],

38 "scripts": {

39 "postinstall": "node scripts/install.js",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L39

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L39

40 "test": "node scripts/install.test.js && node bin/lain.test.js"

Low

Suspicious Lifecycle Evidence

package.json declares a postinstall command that runs scripts/install.js.

package.jsonView on unpkg · L38

41 },

42 "engines": {

43 "node": ">=18.0.0"

44 }

45}

scripts/install.jsView file

Lines 1-15javascript

1#!/usr/bin/env node

3const { ensureBinary } = require('./runtime');

5if (process.env.CI && !process.env.LAIN_FORCE_INSTALL) {

Source & flagged code

5 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/install.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

2scripts.postinstall = node scripts/install.js Install-time code downloads an unverified remote native executable, stages it locally, activates an executable path, and exposes it to process execution. L4: const fs = require('fs'); L5: const https = require('https'); L6: const os = require('os'); L7: const path = require('path'); L8: const { execFileSync, spawnSync } = require('child_process'); L9: ... L11: L12: function targetFor(platform = process.platform, arch = process.arch) { L13: const targets = { 'darwin-arm64': 'aarch64-apple-darwin', 'linux-x64': 'x86_64-unknown-linux-gnu', 'win32-x64': 'x86_64-pc-windows-msvc' }; L14: const target = targets[`${platform}-${arch}`]; L15: if (!target) throw new Error(`Unsupported platform: ${platform}-${arch}`); L16: return target; L2: L3: const {

High

Unverified Remote Native Payload Install

Install-time source downloads a native archive from a fixed external host without transport verification, extracts it, and installs an executable payload.

package.jsonView on unpkg · L2

•scripts.postinstall = node scripts/install.js

Findings

2 High4 Medium6 Low

HighInstall Time Lifecycle Scriptspackage.json

HighUnverified Remote Native Payload Installpackage.json

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

LowSuspicious Lifecycle Evidencepackage.json

LowAi Review Evidencescripts/install.js

Affected versions and remediation

This report applies to @spuentesp/lain-mcp@0.10.0.

See all versions of @spuentesp/lain-mcp for other recorded verdicts.

Review the evidence and your use of @spuentesp/lain-mcp@0.10.0 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: 2026-10-14 12:14:37.252Z (UTC).

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