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audit-tools@0.50.20: AI-agent control-surface risk | LPM Firewall

registry / audit-tools / 0.50.20

audit-tools@0.50.20

Provider-neutral code auditing and remediation workflows for arbitrary repositories.

AI Security Review

scanned 3h ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. Installing the package automatically modifies global AI-agent command, skill, plugin, and configuration locations. It also modifies the consuming repository's .gitignore.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

npm install runs the postinstall lifecycle hook.

Impact

A dependency installation changes foreign AI-agent control surfaces without an explicit setup command.

Mechanism

Install-time deployment of global agent assets and configuration.

Policy narrative

On npm installation, the manifest invokes a postinstall driver that launches two deployers. The audit deployer writes global Claude and Codex assets, merges a global OpenCode configuration, and installs a Gemini plugin; shared helpers create directories and overwrite files. The same lifecycle path also targets the consumer repository through INIT_CWD to manage .gitignore. These changes occur without an explicit user setup command and affect several unrelated agent control surfaces.

Rationale

This package performs unconsented postinstall mutation of broad, foreign AI-agent control surfaces and the consumer project. That concrete lifecycle behavior meets the publish-block policy even without observed secret theft.

Evidence

package.jsonscripts/postinstall.mjsscripts/audit/postinstall.mjsscripts/shared/install-host-assets.mjs~/.claude/commands/audit-code.md~/.codex/skills/audit-code/SKILL.md~/.codex/skills/remediate-code/SKILL.md

Source & flagged code

10 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

wrapper/audit-code-wrapper-lib.mjsView file

•matchType = normalized_sha256 matchedPackage = audit-tools@0.50.19 matchedPath = wrapper/audit-code-wrapper-lib.mjs matchedIdentity = npm:YXVkaXQtdG9vbHM:0.50.19 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.

wrapper/audit-code-wrapper-lib.mjsView on unpkg

•matchType = previous_version_dangerous_delta matchedPackage = audit-tools@0.50.1 matchedIdentity = npm:YXVkaXQtdG9vbHM:0.50.1 similarity = 0.667 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.

wrapper/audit-code-wrapper-lib.mjsView on unpkg

340const distUrl = new URL(`file:///${distCliEntry.replace(/\\/g, '/')}`); L341: const cli = await import(distUrl.href); L342: await cli.runCli([process.execPath, distCliEntry, commandName, ...commandArgs]);

Medium

Dynamic Require

Package source references dynamic require/import behavior.

wrapper/audit-code-wrapper-lib.mjsView on unpkg · L340

scripts/audit/postinstall.mjsView file

1Install-time code directly mutates a foreign AI-agent control surface: L159: grep: 'allow', L160: edit: { ...OPENCODE_AUDIT_EDIT_PERMISSION }, L161: bash: { ...OPENCODE_AUDIT_BASH_PERMISSION }, L162: }; ... L204: function claudePluginExternalDir() { L205: return join(homedir(), '.claude', 'plugins', 'marketplaces', 'claude-plugins-official', 'external_plugins', 'audit-code'); L206: } ... L222: label: 'Claude command', L223: path: join(homedir(), '.claude', 'commands', 'audit-code.md'), L224: sourcePath: promptSourceFile, ... L228: label: 'Codex skill', L229: path: join(homedir(), '.codex', 'skills', 'audit-code', 'SKILL.md'), Write operation from scripts/shared/install-host-assets.mjs: L12: import { dirname, join } from "node:path"; L13: import { mkdirSync, existsSync, readFileSync, writeF

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/audit/postinstall.mjsView on unpkg · L1

dist/audit/cli/args.jsView file

•stage = ast_semantic_analysis; reason = ast_alias_growth_limit_exceeded; limitedFiles = 5

High

Semantic Analysis Limited

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

dist/audit/cli/args.jsView on unpkg

dist/audit/orchestrator/runtimeCommand.jsView file

•matchType = normalized_sha256 matchedPackage = audit-tools@0.50.19 matchedPath = [redacted].js matchedIdentity = npm:YXVkaXQtdG9vbHM:0.50.19 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.

dist/audit/orchestrator/runtimeCommand.jsView on unpkg

dist/shared/tooling/exec.jsView file

•matchType = normalized_sha256 matchedPackage = audit-tools@0.50.19 matchedPath = dist/shared/tooling/exec.js matchedIdentity = npm:YXVkaXQtdG9vbHM:0.50.19 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.

dist/shared/tooling/exec.jsView on unpkg

wrapper/audit-code-wrapper-build.mjsView file

•matchType = normalized_sha256 matchedPackage = audit-tools@0.50.19 matchedPath = wrapper/audit-code-wrapper-build.mjs matchedIdentity = npm:YXVkaXQtdG9vbHM:0.50.19 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.

wrapper/audit-code-wrapper-build.mjsView on unpkg

Source & flagged code

10 flagged

package.jsonView file

Lines 22-62json

22 },

23 "files": [

24 "dist/**",

25 "audit-code.mjs",

26 "wrapper/**",

27 "remediate-code.mjs",

28 "dispatch/**",

29 "schemas/**",

30 "skills/**",

31 "scripts/postinstall.mjs",

32 "scripts/audit/postinstall.mjs",

33 "scripts/remediate/postinstall.mjs",

34 "scripts/shared/install-host-assets.mjs",

35 "opencode.json",

36 "README.md",

37 "docs/audit-pkg/product.md",

38 "docs/audit-pkg/operator-guide.md",

39 "docs/audit-pkg/contracts.md"

40 ],

41 "scripts": {

42 "postinstall": "node scripts/postinstall.mjs",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L42

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L42

43 "prebuild": "node scripts/shared/guard-no-suite-running.mjs",

44 "build": "node scripts/shared/clean-dist.mjs && tsc -p tsconfig.json",

45 "check": "tsc -p tsconfig.json --noEmit",

46 "check:tests": "tsc -p tsconfig.test.json",

47 "check:scripts": "tsc -p tsconfig.scripts.json",

48 "nightly:inbox": "node scripts/nightly/render-inbox.mjs",

49 "nightly:ingest": "node scripts/nightly/ingest-answers.mjs",

50 "test:doc-contract": "node scripts/shared/run-vitest-gate.mjs tests/audit/release-contract.test.ts tests/audit/host-asset-renderer-drift.test.ts tests/shared/handoff-roadmap.test.ts",

51 "test": "npm run build && node scripts/shared/run-vitest-gate.mjs",

52 "test:single": "npm run build && node scripts/shared/run-vitest-gate.mjs",

53 "verify:guards": "node scripts/shared/run-vitest-gate.mjs --retry=2 --exclude \"**/audit-code-completion-*.test.ts\" --exclude \"**/audit-code-wrapper-*.test.ts\" --exclude \"**/audit/next-step-core-*.test.ts\" --exclude \"**/seam-host-only-next-step.test.ts\" --exclude \"**/*-e2e.test.*\" --exclude \"**/next-step-implement-dispatch.test.ts\" --exclude \"**/next-step-pipeline-dispatch.test.ts\""

54 "verify:checks": "node scripts/shared/profile-run.mjs verify-checks check:control-bytes check:shared-primitives check:version-gates check:guard-reach check:ci-trigger-paths check:loop-core-patterns check:loop-core-closure check:constitutional-doc-paths check:runtime-artifact-names check:friction-categories check:executor-producers check:spec-mirrors check:cli-surface check:deadcode check:orphan-modules check:lint check:dup check:depgraph check:doc-manifest check:doc-links check:doc-code-citations check:gate-enumeration check:philosophy-brief check:readme-sample-report check:proposal-red-at ...

55 "verify:release": "npm run verify:checks && node scripts/shared/run-vitest-gate.mjs && npm run smoke:linked-audit-code && npm run smoke:linked-remediate-code",

56 "check:control-bytes": "node scripts/check-control-bytes.mjs",

57 "check:shared-primitives": "node scripts/check-shared-primitives.mjs",

58 "check:guard-reach": "node scripts/check-guard-reach.mjs",

59 "closeout": "node scripts/render-closeout.mjs",

60 "check:ci-trigger-paths": "node scripts/shared/generate-ci-trigger-paths.mjs --check",

61 "check:deadcode": "knip --no-config-hints",

62 "check:lint": "eslint .",

Long lines were clipped for display.

wrapper/audit-code-wrapper-lib.mjsView file

Lines 320-360javascript

320 // Gate the mkdir behind the same ensureArtifactsDir flag as runDistCommand so

321 // "the artifacts directory is created only for designated stateful commands"

322 // holds on this path too (CE-001); mcp is a designated stateful command and

323 // opts in explicitly at its call site.

324 if (ensureArtifactsDir) {

325 await mkdir(artifactsDir, { recursive: true

scripts/audit/postinstall.mjsView file

Lines 1-21javascript

1#!/usr/bin/env node

2import { homedir } from 'os';

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

4import { readFileSync } from 'fs';

5import { fileURLToPath } from

dist/audit/cli/args.jsView file

•stage = ast_semantic_analysis; reason = ast_alias_growth_limit_exceeded; limitedFiles = 5

High

Semantic Analysis Limited

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

dist/audit/cli/args.jsView on unpkg

dist/audit/orchestrator/runtimeCommand.jsView file

•matchType = normalized_sha256 matchedPackage = audit-tools@0.50.19 matchedPath = [redacted].js matchedIdentity = npm:YXVkaXQtdG9vbHM:0.50.19 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.

dist/audit/orchestrator/runtimeCommand.jsView on unpkg

dist/shared/tooling/exec.jsView file

•matchType = normalized_sha256 matchedPackage = audit-tools@0.50.19 matchedPath = dist/shared/tooling/exec.js matchedIdentity = npm:YXVkaXQtdG9vbHM:0.50.19 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.

dist/shared/tooling/exec.jsView on unpkg

wrapper/audit-code-wrapper-build.mjsView file

•matchType = normalized_sha256 matchedPackage = audit-tools@0.50.19 matchedPath = wrapper/audit-code-wrapper-build.mjs matchedIdentity = npm:YXVkaXQtdG9vbHM:0.50.19 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.

wrapper/audit-code-wrapper-build.mjsView on unpkg