registry / AI-agent control-surface risk / @twing/cli / 1.3.6

@twing/cli@1.3.6

AI Security Review

scanned 11d ago · by lpm-firewall-ai

The automatic postinstall proceeds for global npm installs and mutates multiple user-level AI-agent control surfaces. This is unconsented broad agent configuration mutation during an install lifecycle, which meets the blocking policy.

Static reason

High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source

Trigger

A global npm install that runs the package postinstall.

Impact

The install changes agent behavior across the user's machine and activates package hooks in those environments.

Mechanism

The lifecycle script calls machine setup, which wires resolver hooks and agent plugins into user configuration without a separate consent check in the hook.

Policy narrative

A global npm install triggers postinstall setup, which wires twing into user-level Claude, OpenCode, and Codex configuration. This activates hooks across sessions on the machine. Ordinary non-global installs exit before setup, but the global install lifecycle itself has no separate consent gate for these agent configuration changes.

AI rationale

Evidence

package.jsonpostinstall.cjsdist/machine-setup.jsdist/resolve-hook.jsdist/opencode-plugin.jsdist/codex-hooks.jsdist/wire-hooks.js

Decision evidence

public snapshot

AI identified this as a dangerous AI-agent capability at 98.0% confidence with low false-positive risk.

Evidence for policy risk

The package postinstall automatically runs a setup script.
The setup script proceeds on global npm installs and calls machine setup.
Machine setup wires Claude, OpenCode, and Codex integrations and marks the machine as managed.
The wiring functions write user-level agent configuration and install hook or plugin files.

Evidence against

The postinstall exits for installs that are not global and do not include the machine-setup flag.
The package also exposes explicit onboarding commands for wiring agent integrations.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 48 file(s), 467 KB of source, external domains: coordination-server.twing.dev, github.com, raw.githubusercontent.com

Source & flagged code

7 flagged

package.jsonView file

Lines 9-38json

9 "bin": {

10 "twing": "./dist/index.js"

11 },

12 "main": "./dist/index.js",

13 "types": "./dist/index.d.ts",

14 "repository": {

15 "type": "git",

16 "url": "https://github.com/Twing-dev/twing-cli.git",

17 "directory": "packages/cli"

18 },

19 "files": [

20 "dist",

21 "postinstall.cjs",

22 "!dist/**/*.test.js",

23 "!dist/**/*.test.js.map",

24 "!dist/**/*.test.d.ts",

25 "!dist/**/*.test.d.ts.map"

26 ],

27 "scripts": {

28 "build": "tsc -b",

29 "postinstall": "node postinstall.cjs",

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 "typecheck": "tsc --noEmit",

31 "test": "node --test dist/*.test.js dist/*/*.test.js"

32 },

33 "dependencies": {

34 "@twing/core": "^1.3.6",

35 "web-tree-sitter": "^0.26.12"

36 }

37}

dist/opencode-adapter.jsView file

Lines 1-32javascript

1/**

2 * OpenCode -> twing-hook adapter.

3 *

4 * OpenCode plugins run inside the long-lived OpenCode process, while the

5 * existing twing client contract is one JSON payload per short-lived hook

6 * process. Keeping the translation here means OpenCode shares the exact Go

7 * gate, auth recovery, daemon protocol, and target-file repo resolution

8 * Claude already uses instead of growing a second implementation.

9 *

10 * Copied verbatim to `~/.twing/opencode/adapter.mjs` by `opencode-plugin.ts`,

dist/test-support.jsView file

Lines 14-54javascript

14import * as fs from "node:fs";

15import * as os from "node:os";

16import * as path from

dist/machine-setup.jsView file

Lines 1-24javascript

1/**

2 * Machine wiring shared by the one-step install and `twing init --ghuser`.

3 *

4 * Both leave a machine in the same state: the resolver wired into

5 * `~/.claude/settings.json`, the OpenCode plugin installed, and nothing

6 * installed into `~/.twing/lib`. The coordinator picks the version, so the CLI,

Critical

Ai Agent Control Hijack

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

dist/machine-setup.jsView on unpkg · L4

7 * hook binary and daemon arrive lazily the first time a session opens a repo

8 * that uses twing -- and version recovery keeps them current from then on.

dist/codex-hooks.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 8

High

Semantic Analysis Limited

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

dist/codex-hooks.js#virtual:normalized:round1View on unpkg

dist/codex-hooks.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @twing/cli@0.2.26 matchedIdentity = npm:QHR3aW5nL2NsaQ:0.2.26 similarity = 0.459 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

dist/codex-hooks.jsView on unpkg

Source & flagged code

7 flagged · loading source

package.jsonView file

•scripts.postinstall = node postinstall.cjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node postinstall.cjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

dist/opencode-adapter.jsView file

12*/ L13: import { spawn } from "node:child_process"; L14: import * as fs from "node:fs";

High

Child Process

Package source references child process execution.

dist/opencode-adapter.jsView on unpkg · L12

Findings

1 Critical5 High4 Medium4 Low

CriticalAi Agent Control Hijackdist/machine-setup.js

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processdist/opencode-adapter.js

HighSame File Env Network Executiondist/test-support.js

HighSemantic Analysis Limiteddist/codex-hooks.js#virtual:normalized:round1

HighPrevious Version Dangerous Deltadist/codex-hooks.js

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

Low

Affected versions and remediation

This report applies to @twing/cli@1.3.6.

See all versions of @twing/cli for other recorded verdicts.

Avoid installing @twing/cli@1.3.6. Remove it from direct dependencies and check your lockfile for transitive copies.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.
If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.

Evidence last updated: 2026-10-11 21:26:15.254Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Related packages

Other AI-agent control-surface risk packages

Behavioral surface

Source & flagged code

Related packages

Other AI-agent control-surface risk packages