registry / @agent-link/agent / 0.1.334

@agent-link/agent@0.1.334

AgentLink local agent CLI

AI Security Review

scanned 2mo ago · by lpm-firewall-ai

This is not a complete malicious lifecycle chain: it has no runtime self-dependency or broad foreign control-surface mutation. It is still a concrete, automatic remote runtime execution path during global installation.

Static reason

One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source

Trigger

A global npm install or upgrade when an AgentLink version store is already adopted and the package version is newer.

Impact

A compromise of the allowed runtime distribution path could execute a replacement AgentLink runtime under the installing user.

Mechanism

Postinstall remote runtime staging and execution.

AI rationale

Evidence

package.jsonscripts/install-bridge.cjsdist/install-bridge.jsdist/runtime-release.jsdist/version-stager.js

Network endpoints1

msclaude.ai/files/agent/runtime/

Decision evidence

public snapshot

AI called this Suspicious at 89.0% confidence as Dangerous Capability with low false-positive risk.

Evidence for warning

Global postinstall loads an install bridge automatically.
The bridge fetches and stages a remote runtime, installs a launcher, and switches the current-version pointer.
The staged remote bundle's CLI is executed for a self-check.
The runtime source fixes production downloads to msclaude.ai, but its manifest-supplied integrity value is not independently signed.

Evidence against

The lifecycle hook runs only for global installs.
The bridge is conditional on an already adopted version store and a newer version.
Auto-start service registration is exposed as an explicit CLI command.
No self-dependency, credential exfiltration, or destructive action was found.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsUrlStrings

Manifest

Source & flagged code

6 flagged

package.jsonView file

Lines 17-57json

17 "claude",

18 "claude-code",

19 "cli",

20 "ai-agent",

21 "remote-development"

22 ],

23 "type": "module",

24 "main": "dist/index.js",

25 "types": "dist/index.d.ts",

26 "files": [

27 "dist",

28 "launcher",

29 "scripts",

30 "worker"

31 ],

32 "bin": {

33 "agentlink-client": "dist/cli.js"

34 },

35 "scripts": {

36 "build": "tsc",

37 "postinstall": "node scripts/install-bridge.cjs",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L37

38 "prepublishOnly": "npm run build",

39 "dev": "tsx watch src/index.ts",

40 "start": "node dist/index.js"

41 },

42 "engines": {

43 "node": ">=18.0.0"

44 },

45 "dependencies": {

46 "@agentclientprotocol/sdk": "^1.4.0",

47 "@azure/msal-node": "^3.8.10",

48 "commander": "^12.0.0",

49 "cron-parser": "^5.5.0",

50 "js-yaml": "^4.1.1",

51 "marked": "^17.0.6",

52 "node-cron": "^4.2.1",

53 "node-pty": "^1.1.0",

54 "qrcode-terminal": "^0.12.0",

55 "tweetnacl": "^1.0.3",

56 "tweetnacl-util": "^0.15.1",

57 "vscode-jsonrpc": "^8.2.1",

dist/emergency-upgrade.jsView file

Lines 1-24javascript

1import { createHash } from 'crypto';

2import { mkdtempSync, rmSync, writeFileSync } from 'fs';

3import { tmpdir } from 'os';

4import { join, posix } from 'path';

launcher/launcher.cjsView file

Lines 1-27javascript

1#!/usr/bin/env node

2'use strict';

4const fs = require('fs');

5const os = require('os');

dist/service.jsView file

Lines 1-21javascript

1import { execFileSync } from 'child_process';

2import { existsSync, mkdirSync, readFileSync, renameSync, rmSync, unlinkSync, writeFileSync, } from 'fs';

3import { dirname, join, resolve } from 'path';

4import { homedir } from 'os';

dist/cli.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 3

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

dist/cli.js#virtual:normalized:round1View on unpkg

dist/entra.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @agent-link/agent@0.1.331 matchedIdentity = npm:QGFnZW50LWxpbmsvYWdlbnQ:0.1.331 similarity = 0.892 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

dist/entra.jsView on unpkg

Source & flagged code

6 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/install-bridge.cjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

dist/emergency-upgrade.jsView file

4import { join, posix } from 'path'; L5: import { gunzipSync } from 'zlib'; L6: export const RELEASE_MANIFEST_URLS = { L7: latest: 'https://msclaude.ai/files/agent/latest.json', L8: beta: 'https://msclaude.ai/files/agent/beta.json', ... L179: } L180: if (normalizedPath === 'package/package.json') { L181: if (packageIdentity) {

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/emergency-upgrade.jsView on unpkg · L4

launcher/launcher.cjsView file

Findings

4 High4 Medium6 Low

HighInstall Time Lifecycle Scriptspackage.json

HighTrigger Reachable Persistencedist/service.js

HighSemantic Analysis Limiteddist/cli.js#virtual:normalized:round1

HighPrevious Version Dangerous Deltadist/entra.js

MediumNetwork

MediumEnvironment Vars

MediumInstall Persistencelauncher/launcher.cjs

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

LowScripts Present

LowWeak Cryptodist/emergency-upgrade.js

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to @agent-link/agent@0.1.334.

See all versions of @agent-link/agent for other recorded verdicts.

Review the evidence and your use of @agent-link/agent@0.1.334 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: 2026-09-01 06:54:52.529Z (UTC).

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