registry / AI-agent control-surface risk / @rigxyz/cli

@rigxyz/cli

Portable, runnable agent workspaces

This report shows the evidence for @rigxyz/cli@0.14.5. 6 of 10 known versions are blocked or flagged. The newest version, 0.14.7, is flagged. See all versions.

AI Security Review

scanned 16d ago · by lpm-firewall-ai

The package automatically mutates global AI-agent instruction directories during postinstall, creating an unconsented agent control surface. This matches the install-hook blocking policy despite the installer’s collision protections and skip flag.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

Installing the package through npm, unless RIG_SKIP_SKILL_INSTALL is set to 1.

Impact

The skill becomes available to agents across folders and can influence their behavior beyond the package workspace.

Mechanism

The hook targets the user's .claude and .agents directories, creates skills/rig, and writes SKILL.md containing Rig guidance.

Policy narrative

During npm installation, the postinstall hook writes a Rig skill under the user's global Claude and shared .agents skill directories. The skill supplies agent-facing instructions and is available beyond the project that installed the package. Although the installer has a skip flag and collision checks, the default behavior mutates global agent instruction surfaces without a separate setup command.

AI rationale

Evidence

package.jsonbin/postinstall.mjs

Decision evidence

public snapshot

AI identified this as a dangerous AI-agent capability at 93.0% confidence with low false-positive risk.

Evidence for policy risk

The package runs a postinstall script during npm installation.
Postinstall writes a Rig skill into global Claude and shared agent skill directories unless skipped by an environment flag.
The installed skill provides agents with Rig instructions, creating a persistent change to their global instruction surface.

Evidence against

The installer leaves unrelated existing skills intact and skips writing when the current managed version is already installed.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

Manifest

NoLicense

scanned 18 file(s), 383 KB of source, external domains: 127.0.0.1, api.github.com, docs.astral.sh, hub.userig.workers.dev, tap-relay.fly.dev, userig.xyz

Source & flagged code

13 flagged

package.jsonView file

•scripts.postinstall = node bin/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node bin/postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

src/mcp-readiness.mjsView file

16L17: import { spawnSync } from "node:child_process"; L18: import { readFile } from "node:fs/promises";

High

Child Process

Package source references child process execution.

src/mcp-readiness.mjsView on unpkg · L16

•matchType = normalized_sha256 matchedPackage = @rigxyz/cli@0.14.4 matchedPath = src/mcp-readiness.mjs matchedIdentity = npm:QHJpZ3h5ei9jbGk:0.14.4 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.

src/mcp-readiness.mjsView on unpkg

src/cli.mjsView file

•matchType = previous_version_dangerous_delta matchedPackage = @rigxyz/cli@0.14.2 matchedIdentity = npm:QHJpZ3h5ei9jbGk:0.14.2 similarity = 0.765 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

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

src/cli.mjsView on unpkg

2372cwd, L2373: shell: true, L2374: encoding: "utf8"

High

Shell

Package source references shell execution.

src/cli.mjsView on unpkg · L2372

•Manifest-trigger-reachable source links an external AI-agent control path to a behavior-bearing write operation. servepermissions(config, cwd) { if (!config.allowpermissions.length && !config.denypermissions.length) return []; const settingspath = path.join(cwd, ".claude", "settings.json"); let settings = {}; try { settings = json.parse(await readfile(settingspath, "utf8")); } catch (error) { if (error.code !== "enoent") throw error; } const currentallow = array.isarray(settings.permissions?.allow) ? settings.permissions.allow : []; const currentdeny = array.isarray(settings.permissions?.deny) ? settings.permissions.deny : []; const missingallow = config.allowpermissions.filter((p) => !currentallow.includes(p) && !currentdeny.includes(p)); const missingdeny = co

High

Trigger Reachable External Ai Agent Control Surface Mutation

Manifest-trigger-reachable source writes behavior-bearing configuration into a user or project AI-agent control surface.

src/collab.mjsView file

236const { cmd, prefix } = tapdCmd(); L237: const res = spawnSync(cmd, [...prefix, "--version"], { encoding: "utf8" }); L238: if (res.error?.code === "ENOENT") { ... L240: `rig's sync engine (tapd) is missing. Reinstalling rig fixes it:\n` + L241: ` npm install -g @rigxyz/cli@latest\n` + L242: `(Developers: set RIG_TAPD_BIN to point at a local build.)`,

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

src/collab.mjsView on unpkg · L236

•matchType = normalized_sha256 matchedPackage = @rigxyz/cli@0.14.4 matchedPath = src/collab.mjs matchedIdentity = npm:QHJpZ3h5ei9jbGk:0.14.4 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.

src/collab.mjsView on unpkg

225try { L226: const require = createRequire(import.meta.url); L227: const binPath = require.resolve("@rigxyz/tapd/dist/bin.js");

Medium

Dynamic Require

Package source references dynamic require/import behavior.

src/collab.mjsView on unpkg · L225

bin/postinstall.mjsView file

8// reading: L9: // - ~/.claude/skills/rig/SKILL.md (Claude Code) L10: // - ~/.agents/skills/rig/SKILL.md (Codex, Amp, and other harnesses that L11: // follow the shared .agents/skills L12: // convention — same SKILL.md format, ... L17: // Behaviour, independently per harness directory: L18: // - Silent no-op if the harness's home dir (~/.claude or ~/.agents) L19: // doesn't exist (user isn't on that harness; don't create the dir ... L26: // - Native copies, not symlinks or a dependency on a sk[redacted] L27: // CLI (evidenced on dev machines by a separate ~/.agents/.sk[redacted] L28: // some such tool owns) — `rig install` must stay hermetic/offline, and a ... L34:

Critical

Ai Agent Control Hijack

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

bin/postinstall.mjsView on unpkg · L8

src/hub.mjs#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.

src/hub.mjs#virtual:normalized:round1View on unpkg

src/context.mjsView file

•matchType = normalized_sha256 matchedPackage = @rigxyz/cli@0.14.4 matchedPath = src/context.mjs matchedIdentity = npm:QHJpZ3h5ei9jbGk:0.14.4 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.

src/context.mjsView on unpkg

Source & flagged code

13 flagged · loading source

package.jsonView file

•scripts.postinstall = node bin/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node bin/postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

src/mcp-readiness.mjsView file

16L17: import { spawnSync } from "node:child_process"; L18: import { readFile } from "node:fs/promises";

High

Child Process

Package source references child process execution.

src/mcp-readiness.mjsView on unpkg · L16

Findings

2 Critical9 High5 Medium5 Low

CriticalAi Agent Control Hijackbin/postinstall.mjs

CriticalPrevious Version Dangerous Deltasrc/cli.mjs

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processsrc/mcp-readiness.mjs

HighShellsrc/cli.mjs

HighTrigger Reachable External Ai Agent Control Surface Mutationsrc/cli.mjs

HighRuntime Package Installsrc/collab.mjs

HighSemantic Analysis Limitedsrc/hub.mjs#virtual:normalized:round1

HighKnown Malware Source Similaritysrc/collab.mjs

HighKnown Malware Source Similaritysrc/mcp-readiness.mjs

HighKnown Malware Source Similaritysrc/context.mjs

Affected versions and remediation

This report applies to @rigxyz/cli@0.14.5.

The versions list below shows the verdict for each recorded version.

Avoid installing @rigxyz/cli@0.14.5. 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: 2026-10-07 08:32:47.210Z (UTC).

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

Versions

10 known versions

0.14.7latestSuspiciousAgent extension lifecycle riskWarnPublishedOct 8, 2026, 4:57 PM 0.14.5shownMaliciousSoft block: AI-agent control surfaceBlockPublishedOct 6, 2026, 7:59 PM 0.14.4MaliciousSoft block: AI-agent control surfaceBlockPublishedOct 5, 2026, 7:28 PM 0.14.3MaliciousSoft block: AI-agent control surfaceBlockPublishedOct 2, 2026, 2:12 AM

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

Related packages

Other AI-agent control-surface risk packages

Behavioral surface

Related packages

Other AI-agent control-surface risk packages

Source & flagged code