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@androidand/specsync@0.10.0: AI-agent control-surface risk | LPM Firewall

registry / @androidand/specsync / 0.10.0

@androidand/specsync@0.10.0

Sync OpenSpec changes with work-tracker issues — standalone CLI

AI Security Review

scanned 4d ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. npm installation mutates multiple unrelated global AI-agent skill directories and writes a package-provided instruction file. It also downloads, extracts, and later executes a remote release binary.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review

Trigger

npm postinstall; later invocation of specsync

Impact

A dependency install changes broad AI-agent control surfaces without consent; the downloaded binary executes on CLI use.

Mechanism

unconsented cross-agent skill installation and remote binary bootstrap

Policy narrative

On automatic npm postinstall, the package creates five global skill locations spanning Claude, Codex, OpenCode, Copilot, and generic agents, then copies its bundled instruction file into each. This is an unconsented, broad foreign AI-agent control-surface mutation. The same hook downloads and extracts a GitHub Release binary, which the CLI later launches.

Rationale

The source confirms a concrete postinstall mutation of several foreign/broad agent control surfaces, meeting the block policy. The benign-looking skill content and checksum check do not remove that unconsented persistence behavior.

Evidence

package.jsonscripts/postinstall.jsscripts/installer.jsbin/cli.jsskills/specsync/SKILL.mdbin/specsync~/.claude/skills/specsync/SKILL.md~/.codex/skills/specsync/SKILL.md

Source & flagged code

7 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.js

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

scripts/postinstall.jsView file

21// Install the specsync skill into every known global agent skill directory. L22: // Non-fatal: a missing ~/.claude or ~/.codex directory is normal. L23: function installSkill() { ... L27: const agentDirs = [ L28: path.join(os.homedir(), ".claude", "skills", "specsync"), L29: path.join(os.homedir(), ".codex", "skills", "specsync"), L30: path.join(os.homedir(), ".config", "opencode", "skills", "specsync"), L31: path.join(os.homedir(), ".copilot", "skills", "specsync"), L32: path.join(os.homedir(), ".agents", "skills", "specsync"), L33: ]; ... L37: try { L38: fs.mkdirSync(dir, { recursive: true });

Critical

Ai Agent Control Hijack

Source creates an unconsented AI-agent control surface through install-time mutation or a default unauthenticated remote skill channel.

scripts/postinstall.jsView on unpkg · L21

•matchType = normalized_sha256 matchedPackage = @androidand/specsync@0.9.0 matchedPath = scripts/postinstall.js matchedIdentity = npm:QGFuZHJvaWRhbmQvc3BlY3N5bmM:0.9.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

scripts/postinstall.jsView on unpkg

bin/cli.jsView file

•matchType = normalized_sha256 matchedPackage = @androidand/specsync@0.9.0 matchedPath = bin/cli.js matchedIdentity = npm:QGFuZHJvaWRhbmQvc3BlY3N5bmM:0.9.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

bin/cli.jsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 5dc474ac932dff2d signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = @androidand/specsync@0.9.0 matchedPath = bin/cli.js matchedIdentity = npm:QGFuZHJvaWRhbmQvc3BlY3N5bmM:0.9.0 similarity = 1.000 shingleOverlap = 3 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

bin/cli.jsView on unpkg

scripts/installer.jsView file

•matchType = normalized_sha256 matchedPackage = @androidand/specsync@0.9.0 matchedPath = scripts/installer.js matchedIdentity = npm:QGFuZHJvaWRhbmQvc3BlY3N5bmM:0.9.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

scripts/installer.jsView on unpkg

Source & flagged code

7 flagged

package.jsonView file

Lines 1-40json

1{

2 "name": "@androidand/specsync",

3 "version": "0.10.0",

4 "description": "Sync OpenSpec changes with work-tracker issues — standalone CLI",

5 "keywords": [

6 "openspec",

7 "github-issues",

8 "spec-driven",

9 "issue-tracker",

10 "sync",

11 "cli",

12 "planning"

13 ],

14 "author": "androidand",

15 "bugs": "https://github.com/androidand/specsync/issues",

16 "bin": {

17 "specsync": "bin/cli.js"

18 },

19 "scripts": {

20 "postinstall": "node scripts/postinstall.js",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L20

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L20

21 "test": "node --test test/*.test.js"

22 },

23 "files": [

24 "bin/",

25 "scripts/",

26 "skills/"

27 ],

28 "os": [

29 "darwin",

30 "linux"

31 ],

32 "cpu": [

33 "x64",

34 "arm64"

35 ],

36 "engines": {

37 "node": ">=16"

38 },

39 "license": "MIT",

40 "repository": {

scripts/postinstall.jsView file

Lines 1-41javascript

1#!/usr/bin/env node

2// Downloads the platform-matched specsync binary from GitHub Releases.

3// Asset names match .goreleaser.yaml: specsync_<os>_<arch>.tar.gz

4const fs = require("fs");

5const os = require("os"

bin/cli.jsView file

•matchType = normalized_sha256 matchedPackage = @androidand/specsync@0.9.0 matchedPath = bin/cli.js matchedIdentity = npm:QGFuZHJvaWRhbmQvc3BlY3N5bmM:0.9.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

bin/cli.jsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 5dc474ac932dff2d signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = @androidand/specsync@0.9.0 matchedPath = bin/cli.js matchedIdentity = npm:QGFuZHJvaWRhbmQvc3BlY3N5bmM:0.9.0 similarity = 1.000 shingleOverlap = 3 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

bin/cli.jsView on unpkg

scripts/installer.jsView file

•matchType = normalized_sha256 matchedPackage = @androidand/specsync@0.9.0 matchedPath = scripts/installer.js matchedIdentity = npm:QGFuZHJvaWRhbmQvc3BlY3N5bmM:0.9.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

scripts/installer.jsView on unpkg