@twing/cli@1.0.1

AI Security Review

scanned 11d ago · by lpm-firewall-ai

The install lifecycle can write machine-wide agent configuration, creating a real but guarded agent integration risk. The source supports a warning for package-owned agent setup, not a confirmed attack warranting a publish block.

Static reason

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

Trigger

Installing globally with npm, or invoking the postinstall script with the machine-setup flag.

Impact

The package becomes active in supported agent sessions across the machine and may handle their tool events.

Mechanism

The lifecycle hook calls machine setup, which writes Claude resolver wiring and an OpenCode plugin and marks the installation as managed.

AI rationale

Evidence

package.jsonpostinstall.cjsdist/machine-setup.jsdist/resolve-hook.jsdist/opencode-plugin.js~/.claude/settings.json~/.config/opencode/plugins/twing.js~/.twing/opencode/adapter.mjs~/.twing/auto-managed

Decision evidence

public snapshot

AI called this Suspicious at 91.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The postinstall hook runs machine setup only for a global npm install or when passed the machine-setup flag.
That setup wires Claude Code and OpenCode integrations and marks the installation as managed.
The OpenCode integration writes a plugin under the user's OpenCode plugin directory; the resolver writes machine-wide Claude settings.
The integration is package-owned agent setup, and the lifecycle trigger is guarded by an explicit machine-install condition.

Evidence against

Ordinary dependency installs exit before machine setup runs.
The inspected setup code contains no credential forwarding or unrelated remote payload execution.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 45 file(s), 360 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": "^1.0.1",

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/design.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 6

High

Semantic Analysis Limited

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

dist/design.js#virtual:normalized:round1View 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/design.js#virtual:normalized:round1

HighPrevious Version Dangerous Deltadist/opencode-adapter.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@1.0.1.

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

Review the evidence and your use of @twing/cli@1.0.1 before allowing it. Restrict the permissions described in this report.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.

Evidence last updated: 2026-10-11 21:25:31.078Z (UTC).

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