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karajan-code@4.35.1: AI-agent control-surface risk | LPM Firewall

registry / karajan-code / 4.35.1

karajan-code@4.35.1

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

AI Security Review

scanned 11d ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. npm install runs a postinstall script that silently writes the user's global Claude Code and Codex configs so both agents start this package's MCP server.

Static reason

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

Trigger

npm install lifecycle postinstall

Impact

Claude Code and Codex load a package-controlled MCP server into the user agent tool surface without a consent prompt.

Mechanism

scripts/postinstall.js reads and overwrites ~/.claude.json and ~/.codex/config.toml, injecting a stdio MCP entry whose command is node and whose args point at src/mcp/server.js. Errors are caught and ignored.

Policy narrative

Installing karajan-code runs scripts/postinstall.js. The script resolves a home directory, then writes ~/.claude.json and ~/.codex/config.toml so both agents launch node against this package's MCP server. There is no prompt, flag, or existing-user check that skips the write. Failures are swallowed so npm install still exits successfully. The installed MCP entry persists in the foreign agent configs after install.

AI rationale

The postinstall hook unconditionally mutates Claude Code and Codex global MCP configuration to launch this package's server, which is an unconsented install-time write to foreign agent control surfaces. Separate Claude hook setup exists only behind an explicit kj-trash command and does not offset the automatic hook.

Evidence

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

Decision evidence

Source & flagged code

24 flagged

package.jsonView file

Lines 56-96json

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/karajan-code-logo-small.png",

64 "docs/README.es.md",

65 "LICENSE",

66 "README.md"

67 ],

68 "bin": {

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

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

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

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

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

74 },

75 "scripts": {

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

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L76

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L76

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

78 "test": "vitest run",

79 "test:watch": "vitest",

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

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

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

83 "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",

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

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

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

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

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

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

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

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

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

93 },

94 "simple-git-hooks": {

95 "pre-commit": "npx lint-staged"

96 },

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: ${binPath

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 = 22

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/cli/register-meta.jsView file

•matchType = normalized_sha256 matchedPackage = @karajan-family/code@4.35.0 matchedPath = src/cli/register-meta.js matchedIdentity = npm:QGthcmFqYW4tZmFtaWx5L2NvZGU:4.35.0 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.

src/cli/register-meta.jsView on unpkg

src/commands/board.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.32.0 matchedPath = src/commands/board.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.32.0 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.

src/commands/board.jsView on unpkg

src/utils/update-check.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.32.0 matchedPath = src/utils/update-check.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.32.0 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.

src/utils/update-check.jsView on unpkg

packages/ai-trash/src/git-snapshot.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.32.0 matchedPath = packages/ai-trash/src/git-snapshot.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.32.0 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.

packages/ai-trash/src/git-snapshot.jsView on unpkg

src/commands/audit.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.32.0 matchedPath = src/commands/audit.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.32.0 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.

src/commands/audit.jsView on unpkg

src/commands/go.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.32.0 matchedPath = src/commands/go.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.32.0 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.

src/commands/go.jsView on unpkg

src/commands/install-tools.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.32.0 matchedPath = src/commands/install-tools.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.32.0 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.

src/commands/install-tools.jsView on unpkg

src/harden/supervisor-commit.jsView file

•matchType = normalized_sha256 matchedPackage = @karajan-family/code@4.34.0 matchedPath = src/harden/supervisor-commit.js matchedIdentity = npm:QGthcmFqYW4tZmFtaWx5L2NvZGU:4.34.0 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.

src/harden/supervisor-commit.jsView on unpkg

src/hu/store.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.32.0 matchedPath = src/hu/store.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.32.0 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.

src/hu/store.jsView on unpkg

src/utils/tool-installer.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.32.0 matchedPath = src/utils/tool-installer.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.32.0 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.

src/utils/tool-installer.jsView on unpkg

packages/hu-board/src/db.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.32.0 matchedPath = packages/hu-board/src/db.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.32.0 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.

packages/hu-board/src/db.jsView on unpkg

src/checks/mcp-health.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.32.0 matchedPath = src/checks/mcp-health.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.32.0 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.

src/checks/mcp-health.jsView on unpkg

Source & flagged code

24 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/dual-publish.mjsView file

17import { readFileSync, writeFileSync } from "node:fs"; L18: import { execFileSync } from "node:child_process"; L19: import { join, dirname, resolve } from "node:path";

High

Child Process

Package source references child process execution.

scripts/dual-publish.mjsView on unpkg · L17

src/review/card-verify.jsView file

17L18: const execAsync = promisify(exec); L19: export const VERIFY_TIMEOUT_MS = 4000;

High

Shell

Package source references shell execution.

src/review/card-verify.jsView on unpkg · L17

scripts/verify-pack.mjsView file

114// pattern lookalikes). L115: const { scanPaths, loadPrivacyList } = await import( L116: path.join(repoRoot, "src", "privacy", "scan.js")

Medium

Dynamic Require

Package source references dynamic require/import behavior.

scripts/verify-pack.mjsView on unpkg · L114

src/sonar/project-key.jsView file

83const explicit = String( L84: options.projectKey || process.env.KJ_SONAR_PROJECT_KEY || config?.sonarqube?.project_key || "" L85: ).trim(); ... L99: const remote = await runCommand("git", ["config", "--get", "remote.origin.url"]); L100: const remoteUrl = String(remote.stdout || "").trim(); L101: if (remote.exitCode !== 0 || !remoteUrl) {

Low

Weak Crypto

Package source references weak cryptographic algorithms.

src/sonar/project-key.jsView on unpkg · L83

scripts/install.jsView file

4import path from "node:path"; L5: import { spawn } from "node:child_process"; L6: import readline from "node:readline/promises"; L7: import { stdin as input, stdout as output } from "node:process"; L8: import { tomlPath } from "./toml-value.js"; ... L10: const rl = readline.createInterface({ input, output }); L11: const REGISTRY_PATH = path.join(os.homedir(), ".karajan", "instances.json"); L12: const INSTALL_STATE_PATH = path.join(os.homedir(), ".karajan", "install-state.json"); L13: const AGENT_META = { L14: codex: { bin: "codex", installUrl: "https://developers.openai.com/codex/cli" }, L15: claude: { bin: "claude", installUrl: "https://docs.anthropic.com/en/docs/claude-code" }, ... L120: if (cliValue !== undefined) return cliValue;

Medium

Install Persistence

Source writes installer persistence such as shell profile or service configuration.

scripts/install.jsView on unpkg · L4

scripts/postinstall.jsView file

26await fs.mkdir(path.dirname(file), { recursive: true }); L27: await fs.writeFile(file, `${JSON.stringify(obj, null, 2)}\n`, "utf8"); L28: } L29: L30: const CLAUDE_JSON_PATH = path.join(os.homedir(), ".claude.json"); L31: ... L77: async function setupClaudeMcp(config, kjHome) { L78: config.mcpServers = config.mcpServers || {}; L79: // Keep every env key the user added to the entry; only the home is ours, L80: // and it is written under the current name (KJ_HOME is deprecated). L81: const { KJ_HOME: _stale, ...userEnv } = config.mcpServers["karajan-mcp"]?.env || {}; L82: config.mcpServers["karajan-mcp"] = {

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 · L26

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 = 22

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/cli/register-meta.jsView file

High

Known Malware Source Similarity

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

src/cli/register-meta.jsView on unpkg

src/commands/board.jsView file

High

Known Malware Source Similarity

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

src/commands/board.jsView on unpkg

src/utils/update-check.jsView file

High

Known Malware Source Similarity

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

src/utils/update-check.jsView on unpkg

packages/ai-trash/src/git-snapshot.jsView file

High

Known Malware Source Similarity

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

packages/ai-trash/src/git-snapshot.jsView on unpkg

src/commands/audit.jsView file

High

Known Malware Source Similarity

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

src/commands/audit.jsView on unpkg

src/commands/go.jsView file

High

Known Malware Source Similarity

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

src/commands/go.jsView on unpkg

src/commands/install-tools.jsView file

High

Known Malware Source Similarity

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

src/commands/install-tools.jsView on unpkg

src/harden/supervisor-commit.jsView file

High

Known Malware Source Similarity

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

src/harden/supervisor-commit.jsView on unpkg

src/hu/store.jsView file

High

Known Malware Source Similarity

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

src/hu/store.jsView on unpkg

src/utils/tool-installer.jsView file

High

Known Malware Source Similarity

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

src/utils/tool-installer.jsView on unpkg

packages/hu-board/src/db.jsView file

High

Known Malware Source Similarity

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

packages/hu-board/src/db.jsView on unpkg

src/checks/mcp-health.jsView file

High

Known Malware Source Similarity

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

src/checks/mcp-health.jsView on unpkg