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agent-takkub@2.1.14: Suspicious npm security report (Warn) | LPM Firewall

registry / agent-takkub / 2.1.14

agent-takkub@2.1.14

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

AI Security Review

scanned 22d ago · by lpm-firewall-ai

LPM treats this as warn-only first-party agent extension lifecycle risk. Install runs a first-party cockpit bootstrap: isolated ~/.agent-takkub venv, pip install of a bundled wheel, optional global install of the official Claude Code CLI, user PATH edits, and a Desktop/Applications launcher. Readable scripts do not rewrite foreign agent configs, but the wheel that pip installs could not be inspected.

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 of agent-takkub, which runs the postinstall script automatically, including non-global installs after a warning.

Impact

The installer changes user PATH, drops launchers, may add a global Claude CLI, and loads an opaque Python wheel into ~/.agent-takkub; it does not show a foreign agent-config hijack in inspectable source.

Mechanism

Install-time first-party runtime provisioning plus PATH and desktop launcher writes

AI rationale

Readable install scripts are an aggressive but product-shaped desktop-app bootstrap and do not write foreign AI-agent control files or steal data. Residual risk is the unreadable wheel pip-installed at postinstall plus unconsented PATH and launcher mutation, which is dual-use rather than a proven hijack.

Evidence

package.jsonnpm/scripts/postinstall.jsnpm/scripts/pathfix.jsnpm/scripts/shortcut.js~/.agent-takkub~/.zshrc~/.bashrcDesktop/Takkub Cockpit.lnkDesktop/Takkub Cockpit.app~/Applications/Takkub Cockpit.app

Source & flagged code

9 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 ... L87: L88: fs.mkdirSync(agentTakkubHome(), { recursive: true }); L89: ... L116: L117: const claudeOk = ensureClaudeCli(env.claudeCli.present); L118: ... L140: } L141: console.log(' Left untouched: ~/.claude plugins, ~/.takkub config (nothing overwritten).'); L142: // #574: the migration itself never runs here (postinstall stays a plain Write operation from npm/scripts/postinstall.js: L8: // • REUSES an existing cockpit venv (upgrade in place) instead of wiping it. L9

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-2.1.14-py3-none-any.whlView file

•path = dist/agent_takkub-2.1.14-py3-none-any.whl kind = high_entropy_blob sizeBytes = 4886506 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

dist/agent_takkub-2.1.14-py3-none-any.whlView on unpkg

•path = dist/agent_takkub-2.1.14-py3-none-any.whl kind = compressed_blob sizeBytes = 4886506 magicHex = [redacted]

Medium

Ships Compressed Blob

Package ships compressed or archive-like blobs.

dist/agent_takkub-2.1.14-py3-none-any.whlView on unpkg

•path = dist/agent_takkub-2.1.14-py3-none-any.whl kind = nested_archive_needs_inspection sizeBytes = 4886506 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-2.1.14-py3-none-any.whlView on unpkg

npm/scripts/lib.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 2

High

Semantic Analysis Limited

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

npm/scripts/lib.js#virtual:normalized:round1View on unpkg

npm/scripts/shortcut.jsView file

•matchType = normalized_sha256 matchedPackage = agent-takkub@2.1.13 matchedPath = npm/scripts/shortcut.js matchedIdentity = npm:YWdlbnQtdGFra3Vi:2.1.13 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 = 4e1434cf7f50ba4b signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = agent-takkub@2.1.13 matchedPath = npm/scripts/shortcut.js matchedIdentity = npm:YWdlbnQtdGFra3Vi:2.1.13 similarity = 1.000 shingleOverlap = 8 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

9 flagged

package.jsonView file

Lines 9-49json

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 "prepublishOnly": "node npm/scripts/preflight-publish.js",

31 "test": "node --test npm/scripts/*.test.js"

32 },

33 "files": [

34 "npm/",

35 "!npm/scripts/*.test.js",

36 "dist/*.whl",

37 "assets/icon.ico",

38 "assets/icon.png",

39 "assets/cockpit-main.png"

40 ],

41 "os": [

42 "win32",

43 "darwin"

44 ],

45 "engines": {

46 "node": ">=18"

47 },

48 "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.",

49 "license": "MIT"

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-2.1.14-py3-none-any.whlView file

•path = dist/agent_takkub-2.1.14-py3-none-any.whl kind = high_entropy_blob sizeBytes = 4886506 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

dist/agent_takkub-2.1.14-py3-none-any.whlView on unpkg

•path = dist/agent_takkub-2.1.14-py3-none-any.whl kind = compressed_blob sizeBytes = 4886506 magicHex = [redacted]

Medium

Ships Compressed Blob

Package ships compressed or archive-like blobs.

dist/agent_takkub-2.1.14-py3-none-any.whlView on unpkg

•path = dist/agent_takkub-2.1.14-py3-none-any.whl kind = nested_archive_needs_inspection sizeBytes = 4886506 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-2.1.14-py3-none-any.whlView on unpkg

npm/scripts/lib.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 2

High

Semantic Analysis Limited

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

npm/scripts/lib.js#virtual:normalized:round1View on unpkg

npm/scripts/shortcut.jsView file

•matchType = normalized_sha256 matchedPackage = agent-takkub@2.1.13 matchedPath = npm/scripts/shortcut.js matchedIdentity = npm:YWdlbnQtdGFra3Vi:2.1.13 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 = 4e1434cf7f50ba4b signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = agent-takkub@2.1.13 matchedPath = npm/scripts/shortcut.js matchedIdentity = npm:YWdlbnQtdGFra3Vi:2.1.13 similarity = 1.000 shingleOverlap = 8 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