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agent-takkub@1.0.72: AI-agent control-surface risk | LPM Firewall

registry / agent-takkub / 1.0.72

agent-takkub@1.0.72

Desktop cockpit for orchestrating a team of Claude Code agents (Windows + macOS). Install globally: npm i -g agent-takkub

AI Security Review

scanned 3h ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. npm postinstall silently installs Anthropic's global Claude CLI if missing and modifies persistent PATH settings. It also creates application launchers before the user invokes this package.

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 install (postinstall)

Impact

Adds a foreign AI-agent control surface and shell persistence outside the package-owned venv.

Mechanism

unconsented global AI CLI installation and persistent environment mutation

Policy narrative

Installing the npm package runs postinstall. If Claude is absent, it invokes npm to globally install @anthropic-ai/claude-code, then persists the npm global bin directory in user shell settings and creates launchers. These changes occur without an explicit follow-up command or consent for a foreign AI-agent CLI.

Rationale

The package performs unconsented postinstall installation of a third-party AI-agent CLI and persistent user-environment changes. This meets the install-time foreign AI-agent control-surface mutation block boundary.

Evidence

package.jsonnpm/scripts/postinstall.jsnpm/scripts/pathfix.jsnpm/scripts/shortcut.jsdist/agent_takkub-1.0.72-py3-none-any.whl~/.agent-takkub/venv~/.zshrc~/.bashrc~/Desktop/Takkub Cockpit.app~/Applications/Takkub Cockpit.app

Source & flagged code

8 flagged · loading source

package.jsonView file

•scripts.postinstall = node npm/scripts/postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node npm/scripts/postinstall.js

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

npm/scripts/postinstall.jsView file

1Install-time code directly mutates a foreign AI-agent control surface: L8: // • REUSES an existing cockpit venv (upgrade in place) instead of wiping it. L9: // • Does NOT touch the global claude CLI, ~/.claude plugins, or ~/.takkub L10: // config. Anything shared/missing is left for an explicit, detect-first ... L84: L85: fs.mkdirSync(agentTakkubHome(), { recursive: true }); L86: ... L113: L114: const claudeOk = ensureClaudeCli(env.claudeCli.present); L115: ... L137: } L138: console.log(' Left untouched: ~/.claude plugins, ~/.takkub config (nothing overwritten).'); L139: console.log('\n Next steps:'); Write operation from npm/scripts/postinstall.js: L8: // • REUSES an existing cockpit venv (upgrade in place) instead of wiping it. L9: // • Does NOT touch the global claud

Critical

Ai Agent Control Hijack

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

npm/scripts/postinstall.jsView on unpkg · L1

dist/agent_takkub-1.0.72-py3-none-any.whlView file

•path = dist/agent_takkub-1.0.72-py3-none-any.whl kind = high_entropy_blob sizeBytes = 2220439 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

dist/agent_takkub-1.0.72-py3-none-any.whlView on unpkg

•path = dist/agent_takkub-1.0.72-py3-none-any.whl kind = compressed_blob sizeBytes = 2220439 magicHex = [redacted]

Medium

Ships Compressed Blob

Package ships compressed or archive-like blobs.

dist/agent_takkub-1.0.72-py3-none-any.whlView on unpkg

•path = dist/agent_takkub-1.0.72-py3-none-any.whl kind = nested_archive_needs_inspection sizeBytes = 2220439 magicHex = [redacted]

Low

Nested Archive Needs Inspection

Package ships a nested archive or MCP bundle that was inventoried but not recursively analyzed.

dist/agent_takkub-1.0.72-py3-none-any.whlView on unpkg

npm/scripts/shortcut.jsView file

•matchType = normalized_sha256 matchedPackage = agent-takkub@1.0.69 matchedPath = npm/scripts/shortcut.js matchedIdentity = npm:YWdlbnQtdGFra3Vi:1.0.69 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.

npm/scripts/shortcut.jsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = cf3458d1bca92466 signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = agent-takkub@1.0.69 matchedPath = npm/scripts/shortcut.js matchedIdentity = npm:YWdlbnQtdGFra3Vi:1.0.69 similarity = 1.000 shingleOverlap = 6 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.

npm/scripts/shortcut.jsView on unpkg

Source & flagged code

8 flagged

package.jsonView file

Lines 9-48json

9 "agent-orchestration",

10 "cockpit",

11 "desktop",

12 "cli",

13 "developer-tools"

14 ],

15 "author": "takkub",

16 "repository": {

17 "type": "git",

18 "url": "git+https://github.com/takkub/agent-takkub.git"

19 },

20 "homepage": "https://github.com/takkub/agent-takkub#readme",

21 "bugs": {

22 "url": "https://github.com/takkub/agent-takkub/issues"

23 },

24 "bin": {

25 "agent-takkub": "npm/bin/agent-takkub.js",

26 "takkub": "npm/bin/takkub.js"

27 },

28 "scripts": {

29 "postinstall": "node npm/scripts/postinstall.js"

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L29

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L29

30 },

31 "files": [

32 "npm/",

33 "dist/*.whl",

34 "assets/icon.ico",

35 "assets/icon.png",

36 "assets/cockpit-main.png"

37 ],

38 "os": [

39 "win32",

40 "darwin"

41 ],

42 "engines": {

43 "node": ">=18"

44 },

45 "engines-note": "This floor is for agent-takkub itself. The OPTIONAL graft code-intelligence feature (installed separately via `takkub doctor --fix`, not an npm dependency of this package) needs Node >=20 — see README's Requirements section. Not raised here because it would force the >=20 floor onto every user even though graft stays off until explicitly enabled.",

46 "license": "MIT"

47}

48

npm/scripts/postinstall.jsView file

Lines 1-21javascript

1'use strict';

2// npm postinstall bootstrap for `npm install -g agent-takkub`.

3//

4// SAFETY MODEL — check first, never clobber:

5// • Detects what's already present (preflight.js, non-mutating) and REPORTS it.

6// • Provisions ONLY into the isolated AGENT_TAKKUB_HOME (default

7// ~/.agent-takkub) — never a repo `.venv`, never shared user state.

8// • REUSES an existing cockpit venv (upgrade in place) instead of wiping it.

9// • Does NOT touch the global claude CLI, ~/.claude plugins, or ~/.takkub

10

dist/agent_takkub-1.0.72-py3-none-any.whlView file

•path = dist/agent_takkub-1.0.72-py3-none-any.whl kind = high_entropy_blob sizeBytes = 2220439 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

dist/agent_takkub-1.0.72-py3-none-any.whlView on unpkg

•path = dist/agent_takkub-1.0.72-py3-none-any.whl kind = compressed_blob sizeBytes = 2220439 magicHex = [redacted]

Medium

Ships Compressed Blob

Package ships compressed or archive-like blobs.

dist/agent_takkub-1.0.72-py3-none-any.whlView on unpkg

•path = dist/agent_takkub-1.0.72-py3-none-any.whl kind = nested_archive_needs_inspection sizeBytes = 2220439 magicHex = [redacted]

Low

Nested Archive Needs Inspection

Package ships a nested archive or MCP bundle that was inventoried but not recursively analyzed.

dist/agent_takkub-1.0.72-py3-none-any.whlView on unpkg

npm/scripts/shortcut.jsView file

•matchType = normalized_sha256 matchedPackage = agent-takkub@1.0.69 matchedPath = npm/scripts/shortcut.js matchedIdentity = npm:YWdlbnQtdGFra3Vi:1.0.69 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.

npm/scripts/shortcut.jsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = cf3458d1bca92466 signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = agent-takkub@1.0.69 matchedPath = npm/scripts/shortcut.js matchedIdentity = npm:YWdlbnQtdGFra3Vi:1.0.69 similarity = 1.000 shingleOverlap = 6 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.

npm/scripts/shortcut.jsView on unpkg