registry / AI-agent control-surface risk / @karajan-family/code / 4.57.0

@karajan-family/code@4.57.0

Local multi-agent coding orchestrator with TDD, SonarQube, and code review pipeline

AI Security Review

scanned 4d ago · by lpm-firewall-ai

The automatic postinstall mutates foreign agent control surfaces by registering a package-owned server, without an affirmative consent gate. This meets the policy for blocking unconsented lifecycle changes to agent configuration.

Static reason

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

Trigger

Installing the package with lifecycle scripts enabled.

Impact

Claude Code and Codex may launch the package's MCP server in later sessions.

Mechanism

The hook writes a server entry into the user's global agent configuration files without an affirmative setup prompt.

Policy narrative

Package installation automatically runs a hook that writes the package's MCP server entry into global Claude and Codex configuration. The source shows no affirmative consent check before either configuration write.

AI rationale

Evidence

package.jsonscripts/postinstall.js~/.claude.json~/.codex/config.toml

Decision evidence

public snapshot

AI identified this as a dangerous AI-agent capability at 99.0% confidence with low false-positive risk.

Evidence for policy risk

package.json runs scripts/postinstall.js automatically; its main function registers the MCP server in Claude and Codex configuration.
The postinstall writes a package-owned MCP server entry to the user's global Claude and Codex configuration without an affirmative setup prompt.

Evidence against

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsUrlStrings

Manifest

CopyleftLicense

scanned 758 file(s), 4.09 MB of source, external domains: aider.chat, aistudio.google.com, antigravity.google, api.github.com, cli.github.com, console.anthropic.com, developers.openai.com, docs.anthropic.com, docs.docker.com, docs.github.com, docs.sonarsource.com, firestore.googleapis.com, fonts.googleapis.com, fonts.gstatic.com, get.docker.com, git-scm.com, github.com, google.github.io, karajan-code.web.app, karajancode.com, nodejs.org, ollama.com, opencode.ai, platform.openai.com, raw.githubusercontent.com, registry.npmjs.org, semgrep.dev, sonarcloud.io, www.docker.com, www.w3.org

Source & flagged code

24 flagged

package.jsonView file

Lines 55-95json

55 "scripts/",

56 "vendor/tree-sitter-grammars/",

57 "packages/hu-board/src/",

58 "packages/hu-board/public/",

59 "packages/hu-board/package.json",

60 "packages/ai-trash/src/",

61 "packages/ai-trash/bin/",

62 "packages/ai-trash/package.json",

63 "docs/README.es.md",

64 "LICENSE",

65 "README.md"

66 ],

67 "bin": {

68 "kj": "bin/kj.js",

69 "kj-tail": "bin/kj-tail",

70 "kj-trash": "packages/ai-trash/bin/kj-trash.js",

71 "karajan-mcp": "bin/karajan-mcp.js",

72 "kj-rag-mcp": "bin/kj-rag-mcp.js"

73 },

74 "scripts": {

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

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L75

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L75

76 "setup": "node scripts/install.js",

77 "test": "vitest run",

78 "test:scenarios": "vitest run --config tests/scenarios/vitest.config.js --root .",

79 "contract:claude": "node scripts/contract-claude.mjs",

80 "test:watch": "vitest",

81 "test:coverage": "vitest run --coverage",

82 "lint": "eslint src/ packages/",

83 "lint:fix": "eslint src/ packages/ --fix",

84 "lint:syntax": "((command -v rg >/dev/null 2>&1 && rg --files src tests | rg '\\.js$') || find src tests -type f -name '*.js') | while IFS= read -r f; do node --check \"$f\"; done",

85 "format:check": "prettier --check .",

86 "format:fix": "prettier --write .",

87 "typecheck": "npx -p typescript@5 tsc --noEmit -p tsconfig.json",

88 "validate": "npm run lint && npm run lint:syntax && npm test",

89 "mcp": "node src/mcp/server.js",

90 "audit:test-diet": "node scripts/audit-test-diet.mjs",

91 "verify-pack": "node scripts/verify-pack.mjs",

92 "prepublishOnly": "node scripts/verify-pack.mjs",

93 "verify-quickstart": "node scripts/quickstart-gate.mjs"

94 },

95 "simple-git-hooks": {

scripts/dual-publish.mjsView file

Lines 1-37javascript

1#!/usr/bin/env node

2/**

3 * dual-publish (MIG-A, KJC-TSK-0751, épica KJC-PCS-0077, ADR 0004) — el

4 * MISMO contenido sale bajo dos nombres npm durante la migración al scope:

5 * karajan-code (legacy, publish normal) y @karajan-family/code (scoped).

6 *

7 * Uso:

8 * node scripts/dual-publish.mjs --pack-only # genera+verifica el tarball scoped

9 * node scripts/dual-publish.mjs --publish --otp=XXX # publica el scoped (tras publicar el legacy)

10 *

src/review/card-verify.jsView file

Lines 1-37javascript

1/**

2 * card-verify — KJC-TSK-0732 (issue #1371). With a declared tracker,

3 * card-first upgrades "the branch names a card" to "the tracker says that

4 * card is ALIVE". Transport-agnostic: `board.verify_cmd` is the USER'S

5 * adapter (their CLI/MCP wrapper — credentials never enter kj) printing

6 * {exists, live, status?} JSON on stdout. Unverifiable NEVER blocks: it

7 * degrades to branch-ref level SAYING SO — a gate must not claim a check

8 * it didn't make, in either direction. Definitive verdicts are cached

9 * briefly; degradations never are, so recovery is immediate.

scripts/verify-pack.mjsView file

Lines 94-134javascript

95 const binPath = path.join(tmpDir, "node_modules", ".bin", "kj");

96 if (!fs.existsSync(binPath)) fail(`kj binary missing after install: ${

src/sonar/project-key.jsView file

Lines 63-103javascript

63 * sonar-project.properties es la que el servidor conoce, porque es con la que

64 * el scanner sube el analisis. Sin leerla aqui, kj escaneaba un proyecto y

65 * preguntaba por otro (una clave derivada del remote), y el audit acababa

66 * listando issues de repos ajenos del mismo SonarQube.

67 *

scripts/install.jsView file

Lines 1-24javascript

1#!/usr/bin/env node

2import fs from "node:fs/promises";

3import os from "node:os";

4import path from "node:path";

5import { spawn } from

scripts/postinstall.jsView file

Lines 6-46javascript

6 * - Non-interactive, silent on success.

7 * - Idempotent: safe to run many times.

8 * - Never fails hard (exits 0 even on error) so `npm install` is not blocked.

src/audit/basal-cost.jsView file

76return new Promise((resolve) => { L77: execFile("npx", ["depcheck", "--json"], { cwd: projectDir, timeout: 30000 }, (err, stdout) => { L78: if (err && !stdout) {

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

src/audit/basal-cost.jsView on unpkg · L76

vendor/tree-sitter-grammars/python.wasmView file

•path = vendor/tree-sitter-grammars/python.wasm kind = wasm_module sizeBytes = 457883 magicHex = [redacted]

Medium

Ships Wasm Module

Package ships WebAssembly modules.

vendor/tree-sitter-grammars/python.wasmView on unpkg

scripts/install-binary.shView file

•path = scripts/install-binary.sh kind = build_helper sizeBytes = 7790 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

scripts/install-binary.shView on unpkg

bin/kj-tailView file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 24

High

Semantic Analysis Limited

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

bin/kj-tailView on unpkg

src/commands/board.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.49.3 matchedPath = src/commands/board.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High