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

@nemus-cli/nemus

Nemus — a CLI for managing multi-repository workspaces. Create, sync, and operate across dozens of repos with a single command, and wire them up to your favorite coding agent.

This report shows the evidence for @nemus-cli/nemus@0.17.1. 16 of 16 known versions are blocked or flagged. See all versions.

AI Security Review

scanned 8d ago · by lpm-firewall-ai

Inspected source confirms that the global postinstall upgrade can install a Claude hook that automatically expands project-scoped command permissions into the global Claude settings. This is an unconsented mutation of a broad AI-agent control surface, supporting a publish block.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review

Trigger

A global npm install or upgrade runs the postinstall path; when Claude is an active agent, the hook runs after Claude responses in projects with local permission settings.

Impact

Commands allowed for one project can become globally allowed across other projects, removing the original project-level permission boundary.

Mechanism

The installed hook runs the package's sync-permissions.sh script, which merges reusable project allow entries into ~/.claude/settings.json without a confirmation step on the automatic upgrade path.

Policy narrative

A global postinstall upgrade invokes the package's MCP upgrade command. When Claude is active, that upgrade installs a Stop hook in the user's global settings. After Claude responses, the hook reads the current project's local permissions and copies reusable allow entries into the global settings, filtering only certain path and heredoc entries and existing global denials. Those approvals then apply outside the project that contained them, without affirmative confirmation in the automatic upgrade path.

AI rationale

Evidence

package.jsonscripts/postinstall.jsdist/mcp/install.jsdist/utils/config.jsdist/utils/agent-config.jsdist/utils/permission-sync.jssync-permissions.sh$CLAUDE_PROJECT_DIR/.claude/settings.local.json~/.claude/settings.json

Decision evidence

public snapshot

AI identified this as a dangerous AI-agent capability at 94.0% confidence with low false-positive risk.

Evidence for policy risk

The manifest runs scripts/postinstall.js after installation. On global installs, that script launches an upgrade; the interactive setup is limited to a fresh install with a controlling terminal, so it does not gate upgrades for already-configured users.
The upgrade installs hooks for active agents. The default agent setting is auto, which resolves from installed CLIs; the Claude permission hook is installed when Claude is active, without an installMcp check.
The Claude permission hook writes a command to the user's global settings file. Its bundled script runs after Claude responses and reads permissions from the active project's local settings and the global settings.
The script promotes reusable project allow entries into the global allow list, while filtering only home-absolute paths, heredoc commits, existing global allows, and existing global denies. This removes the project boundary for those approvals.
Other inspected agent paths configure Nemus's own MCP server and workspace context files; dashboard hooks are invoked through the dashboard command, and the cited test files describe configuration expectations.

Evidence against

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemShell

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 280 file(s), 1.79 MB of source, external domains: claude.ai, github.com, gitlab.corp

Source & flagged code

19 flagged

package.jsonView file

Lines 47-87json

47 "skills/**/*.md",

48 "uninstall.sh",

49 "assets/**/*",

50 "README.md",

51 "LICENSE",

52 "CHANGELOG.md",

53 "tsconfig.json"

54 ],

55 "bin": {

56 "nemus": "bin/workspace.js",

57 "nem": "bin/workspace.js",

58 "nemus-mcp": "dist/mcp/server.js"

59 },

60 "scripts": {

61 "test": "vitest run",

62 "test:watch": "vitest",

63 "build": "tsc && cp src/commands/dashboard/sidebar.js dist/commands/dashboard/sidebar.js && rm -rf dist/pi-extensions && cp -r src/pi-extensions dist/pi-extensions && rm -rf dist/scripts && cp -r src/scripts dist/scripts",

64 "clean": "rm -rf dist",

65 "typecheck": "tsc --noEmit",

66 "prepublishOnly": "npm run clean && npm run build",

67 "postinstall": "node scripts/postinstall.js"

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L67

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L67

68 },

69 "dependencies": {

70 "@inquirer/prompts": "^8.7.0",

71 "@modelcontextprotocol/sdk": "^1.26.0",

72 "cli-progress": "^3.12.0",

73 "commander": "^15.0.0",

74 "fuzzy": "^0.1.3",

75 "ink": "^7.1.1",

76 "markdown-table": "^3.0.3",

77 "react": "^19.2.8",

78 "zod": "^4.3.6"

79 },

80 "devDependencies": {

81 "@types/cli-progress": "^3.11.0",

82 "@types/node": "^26.3.0",

83 "@types/react": "^19.2.2",

84 "ts-node": "^10.9.1",

85 "typescript": "^5.9.3",

86 "vitest": "^5.0.0"

87 }

bin/workspace.jsView file

Lines 1-22javascript

1#!/usr/bin/env node

3const path = require('path');

4const command = process.argv[2];

Medium

Dynamic Require

Package source references dynamic require/import behavior.

bin/workspace.jsView on unpkg · L2

src/utils/bug-report.tsView file

Lines 1-31typescript

1/**

2 * Bug reporting — capture runtime errors and file them as GitHub issues

3 * against the project repo.

4 *

5 * Design goals (see PR discussion):

6 * - Sanitize: never leak home dir, usernames, emails, or token-like strings.

7 * - Deduplicate: one issue per distinct error signature (search before create).

8 * - Safe: only file genuine tool errors; skip clearly-environmental ones unless

9 * forced. Auto-filing is opt-in via config (autoReportBugs).

10 */

src/postinstall.test.tsView file

Lines 1-21typescript

1import { describe, it, expect } from 'vitest';

2import { execFileSync } from 'node:child_process';

3import { createRequire } from 'node:module';

4import { mkdtempSync, writeFileSync, readFileSync, rmSync } from 'node:fs'

uninstall.shView file

•path = uninstall.sh kind = build_helper sizeBytes = 5610 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

uninstall.shView on unpkg

dist/cli/ai-prompt.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 10

High

Semantic Analysis Limited

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

dist/cli/ai-prompt.js#virtual:normalized:round1View on unpkg

dist/utils/branch-operations.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.2.11 matchedPath = dist/utils/branch-operations.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.2.11 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.

dist/utils/branch-operations.jsView on unpkg

dist/utils/claude-integration.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.2.5 matchedPath = dist/utils/claude-integration.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.2.5 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.

dist/utils/claude-integration.jsView on unpkg

dist/utils/dev-orchestrator.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.17.0 matchedPath = dist/utils/dev-orchestrator.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.17.0 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.

dist/utils/dev-orchestrator.jsView on unpkg

dist/utils/ghq-integration.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.2.11 matchedPath = dist/utils/ghq-integration.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.2.11 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.

dist/utils/ghq-integration.jsView on unpkg

dist/utils/health-checks.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.2.11 matchedPath = dist/utils/health-checks.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.2.11 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.

dist/utils/health-checks.jsView on unpkg

dist/utils/version-check.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.17.0 matchedPath = dist/utils/version-check.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.17.0 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.

dist/utils/version-check.jsView on unpkg

dist/utils/workspace-lock.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.17.0 matchedPath = dist/utils/workspace-lock.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.17.0 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.

dist/utils/workspace-lock.jsView on unpkg

scripts/postinstall.jsView file

•matchType = token_shingles matchedPackage = @nemus-cli/nemus@0.17.0 matchedPath = scripts/postinstall.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.17.0 similarity = 1.000 shingleOverlap = 48 summary = source token shingles overlapped finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

scripts/postinstall.jsView on unpkg

dist/commands/configure.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.17.0 matchedPath = dist/commands/configure.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.17.0 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.

dist/commands/configure.jsView on unpkg

dist/mcp/install.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.2.11 matchedPath = dist/mcp/install.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.2.11 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.

dist/mcp/install.jsView on unpkg

dist/utils/bug-report.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.2.5 matchedPath = dist/utils/bug-report.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.2.5 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.

dist/utils/bug-report.jsView on unpkg

dist/utils/config.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.17.0 matchedPath = dist/utils/config.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.17.0 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.

dist/utils/config.jsView on unpkg

Source & flagged code

19 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.js

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

bin/workspace.jsView file

2L3: const path = require('path'); L4: const command = process.argv[2];

Medium

Dynamic Require

Package source references dynamic require/import behavior.

bin/workspace.jsView on unpkg · L2

src/utils/bug-report.tsView file

11L12: import { execFileSync } from 'child_process'; L13: import * as os from 'os'; ... L22: */ L23: export const BUG_REPORT_REPO = process.env.NEMUS_BUG_REPORT_REPO || 'me-public/nemus'; L24: ... L58: L59: const home = os.homedir(); L60: if (home) { ... L132: try { L133: const raw = JSON.parse(fs.readFileSync(LAST_ERROR_FILE, 'utf-8')); L134: // Validate required fields so a malformed/old file can't crash the reporter.

Low

Weak Crypto

Package source references weak cryptographic algorithms.

src/utils/bug-report.tsView on unpkg · L11

src/postinstall.test.tsView file

1import { describe, it, expect } from 'vitest'; L2: import { execFileSync } from 'node:child_process'; L3: import { createRequire } from 'node:module'; ... L7: L8: const SCRIPT = join(__dirname, '..', 'scripts', 'postinstall.js'); L9: // postinstall.js guards its side effects with `require.main !== module`, so ... L25: it('npm -g → global-npm; npm local → local', () => { L26: expect(classifyInstall({ env: { npm[redacted]: 'true', npm[redacted]: NPM_UA }, dirname: '/usr/local/lib/node_modules/@nemus-cli/nemus/scripts', tmpDir: TMP })).toBe('g... L27: expect(classifyInstall({ env: { npm[redacted]: 'false', npm[redacted]: NPM_UA }, dirname: '/proj/node_modules/@nemus-cli/nemus/scripts', tmpDir: TMP })).toBe('local'); ... L67: // The real macOS case: os.tmpdir() reports /var/folders/… (a s

Medium

Install Persistence

Source writes installer persistence such as shell profile or service configuration.

src/postinstall.test.tsView on unpkg · L1

uninstall.shView file

•path = uninstall.sh kind = build_helper sizeBytes = 5610 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

uninstall.shView on unpkg

dist/cli/ai-prompt.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 10

High

Semantic Analysis Limited

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

dist/cli/ai-prompt.js#virtual:normalized:round1View on unpkg

dist/utils/branch-operations.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/utils/branch-operations.jsView on unpkg

dist/utils/claude-integration.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/utils/claude-integration.jsView on unpkg

dist/utils/dev-orchestrator.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/utils/dev-orchestrator.jsView on unpkg

dist/utils/ghq-integration.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/utils/ghq-integration.jsView on unpkg

dist/utils/health-checks.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/utils/health-checks.jsView on unpkg

dist/utils/version-check.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/utils/version-check.jsView on unpkg

dist/utils/workspace-lock.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/utils/workspace-lock.jsView on unpkg

scripts/postinstall.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

scripts/postinstall.jsView on unpkg

dist/commands/configure.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/commands/configure.jsView on unpkg

dist/mcp/install.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/mcp/install.jsView on unpkg

dist/utils/bug-report.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/utils/bug-report.jsView on unpkg

dist/utils/config.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/utils/config.jsView on unpkg

Findings

14 High6 Medium6 Low

HighInstall Time Lifecycle Scriptspackage.json

HighSemantic Analysis Limiteddist/cli/ai-prompt.js#virtual:normalized:round1

HighKnown Malware Source Similaritydist/utils/branch-operations.js

HighKnown Malware Source Similaritydist/utils/claude-integration.js

HighKnown Malware Source Similaritydist/utils/dev-orchestrator.js

HighKnown Malware Source Similaritydist/utils/ghq-integration.js

HighKnown Malware Source Similaritydist/utils/health-checks.js

HighKnown Malware Source Similaritydist/utils/version-check.js

HighKnown Malware Source Similaritydist/utils/workspace-lock.js

HighKnown Malware Source Similarityscripts/postinstall.js

HighKnown Malware Source Similaritydist/commands/configure.js

HighKnown Malware Source Similaritydist/mcp/install.js

HighKnown Malware Source Similaritydist/utils/bug-report.js

HighKnown Malware Source Similaritydist/utils/config.js

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumDynamic Requirebin/workspace.js

MediumEnvironment Vars

MediumInstall Persistencesrc/postinstall.test.ts

MediumShips Build Helperuninstall.sh

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

LowScripts Present

LowWeak Cryptosrc/utils/bug-report.ts

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to @nemus-cli/nemus@0.17.1.

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

Avoid installing @nemus-cli/nemus@0.17.1. 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: 2026-10-15 08:01:16.785Z (UTC).

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

Versions

16 known versions

94%Malicious

AI assessment confidence

TypeSoft block: AI-agent control surface

False-positive riskLow

Review stagesource_first_review

Firewall policyWarn by default

This finding concerns changes to an AI agent's instructions or configuration without explicit user action. It does not by itself establish malware intent. The CLI warns by default and blocks when configured for this policy.

Package metadata

npm

AuthorNemus contributors

Version0.17.1

PublishedOct 15, 2026

LicenseMIT

Dependencies9

Integrityverified

Package size782 KB

Files391

Keywordsworkspacegitgithubclimonorepomulti-repopolyrepodeveloper-tools

LinksRepository Homepage Issues

Runtime surface

package.json

Entrypointsbin → nem, nemus, nemus-mcp

Runtimenpm >=9.0.0node >=22.13.0

Artifact2.34 MB · 391 files2 signature(s) · provenance

Install lifecyclepostinstallprepublishOnly

Behavioral surface

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemShellHighEntropyStringsUrlStringsManifest: clean

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

Source & flagged code

Related packages

Other AI-agent control-surface risk packages