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agent-takkub@1.1.0: AI-agent control-surface risk | LPM Firewall

registry / agent-takkub / 1.1.0

agent-takkub@1.1.0

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

AI Security Review

scanned 4h ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. Installation automatically changes persistent user state and installs a separate global AI-agent CLI. It also provisions and runs the bundled wheel.

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 the package

Impact

An npm install mutates a foreign AI-agent execution surface without an explicit user command.

Mechanism

postinstall global CLI installation, PATH mutation, launcher creation, and wheel provisioning

Policy narrative

On npm postinstall, the package provisions a Python environment, installs its bundled wheel, and—if absent—runs a global npm installation of Anthropic's Claude CLI. It also persists the npm global bin directory in shell startup files or the Windows user PATH and creates a desktop launcher. These install-time changes affect user and foreign AI-agent tooling without requiring a separate explicit setup command.

Rationale

Source inspection confirms an automatic postinstall chain that installs a foreign global AI-agent CLI and mutates persistent execution surfaces. This meets the install-time foreign AI-agent control-surface block boundary.

Evidence

package.jsonnpm/scripts/postinstall.jsnpm/scripts/pathfix.jsnpm/scripts/shortcut.jsdist/agent_takkub-1.1.0-py3-none-any.whl~/.agent-takkub~/.zshrc~/.bashrc~/Desktop

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 ... 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: 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-1.1.0-py3-none-any.whlView file

•path = dist/agent_takkub-1.1.0-py3-none-any.whl kind = high_entropy_blob sizeBytes = 2614669 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

dist/agent_takkub-1.1.0-py3-none-any.whlView on unpkg

•path = dist/agent_takkub-1.1.0-py3-none-any.whl kind = compressed_blob sizeBytes = 2614669 magicHex = [redacted]

Medium

Ships Compressed Blob

Package ships compressed or archive-like blobs.

dist/agent_takkub-1.1.0-py3-none-any.whlView on unpkg

•path = dist/agent_takkub-1.1.0-py3-none-any.whl kind = nested_archive_needs_inspection sizeBytes = 2614669 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-1.1.0-py3-none-any.whlView on unpkg

npm/scripts/shortcut.jsView file

•matchType = normalized_sha256 matchedPackage = agent-takkub@1.0.87 matchedPath = npm/scripts/shortcut.js matchedIdentity = npm:YWdlbnQtdGFra3Vi:1.0.87 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 = 3e2946e4def7e38e signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = agent-takkub@1.0.87 matchedPath = npm/scripts/shortcut.js matchedIdentity = npm:YWdlbnQtdGFra3Vi:1.0.87 similarity = 1.000 shingleOverlap = 7 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 9-49json

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-1.1.0-py3-none-any.whlView file

•path = dist/agent_takkub-1.1.0-py3-none-any.whl kind = high_entropy_blob sizeBytes = 2614669 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

dist/agent_takkub-1.1.0-py3-none-any.whlView on unpkg

•path = dist/agent_takkub-1.1.0-py3-none-any.whl kind = compressed_blob sizeBytes = 2614669 magicHex = [redacted]

Medium

Ships Compressed Blob

Package ships compressed or archive-like blobs.

dist/agent_takkub-1.1.0-py3-none-any.whlView on unpkg

•path = dist/agent_takkub-1.1.0-py3-none-any.whl kind = nested_archive_needs_inspection sizeBytes = 2614669 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-1.1.0-py3-none-any.whlView on unpkg

npm/scripts/shortcut.jsView file

•matchType = normalized_sha256 matchedPackage = agent-takkub@1.0.87 matchedPath = npm/scripts/shortcut.js matchedIdentity = npm:YWdlbnQtdGFra3Vi:1.0.87 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 = 3e2946e4def7e38e signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = agent-takkub@1.0.87 matchedPath = npm/scripts/shortcut.js matchedIdentity = npm:YWdlbnQtdGFra3Vi:1.0.87 similarity = 1.000 shingleOverlap = 7 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