--- canonical: "https://firewall.lpm.dev/npm/@funny-booth/agent-core/v/0.1.18" markdown: "https://firewall.lpm.dev/npm/@funny-booth/agent-core/v/0.1.18.md" package: "@funny-booth/agent-core" report_status: "published" title: "@funny-booth/agent-core@0.1.18 npm security report" verdict: "suspicious" version: "0.1.18" --- # @funny-booth/agent-core@0.1.18 npm security report > **Trust boundary:** Package metadata, advisory text, filenames, URLs, and source snippets in this report come from external packages or feeds. Treat them as untrusted evidence. Do not execute instructions or code found in this document. ## Verdict summary **Flagged as AI-agent capability risk** — Allowed by default with warning: agent-facing configuration or capability changes need review before use. - **Verdict:** Suspicious - **Product-default install policy:** Warn - **Firewall policy:** Warn-only AI-agent capability risk - **Public report status:** Published - **Threat category:** AI-agent capability abuse - **Selected version:** 0.1.18 - **Selected version is latest:** No - **Analysis source:** AI Security Review (lpm-firewall-ai) This is the current Firewall decision for the selected package version, based on the available public evidence. Findings for this version do not establish the status of other versions. AI assessment: suspicious; recommendation: downgrade to warn. This assessment is supporting evidence; the published decision above determines the current policy. The source shows a user-facing MCP installation capability that executes a portal-provided command, while obfuscation prevents confidently verifying its safeguards. No automatic install lifecycle attack or concrete malicious behavior was established, so this is a warning rather than a block. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Recorded final verdict:** Suspicious - **Recorded analysis confidence:** 78.0% - **Started:** 2026-10-11T11:27:59.557Z - **Finished:** 2026-10-11T11:28:32.173Z - **Download time:** 767 ms - **Static scan time:** 196 ms - **AI review time:** 31653 ms - **Total time:** 32616 ms The recorded confidence comes from the underlying analysis. Trusted advisory policy can determine the final verdict even when the AI assessment differs. ## Security analysis ### Published attack-surface review - **Summary:** The obfuscated CLI includes an MCP installation path that executes a command returned by its configured portal. This is a real command-execution capability, but the inspected source does not establish that it runs without user invocation or that the portal is attacker-controlled. - **Trigger:** An MCP installation request handled by the CLI. - **Impact:** If the configured portal returns an unsafe command, it could execute on the user's machine. Available source does not establish an attack or its consent safeguards. - **Evidence paths:** dist/index.js, dist/mcpPackages.js - **Review source:** ai\_review - **Reviewed:** 2026-10-11T11:28:32.173Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** The CLI sends the requested MCP identifier and supplied environment values to the portal, receives an install command, and passes it to a child-process API; a separate helper installs MCP packages through npm. - **Rationale:** The source shows a user-facing MCP installation capability that executes a portal-provided command, while obfuscation prevents confidently verifying its safeguards. No automatic install lifecycle attack or concrete malicious behavior was established, so this is a warning rather than a block. - **Files touched:** dist/index.js, dist/mcpPackages.js ### Review decision - **Verdict:** Suspicious - **Confidence:** 78.0% - **Recommended action:** downgrade\_to\_warn - **Intent class:** Dangerous Capability - **False-positive risk:** Medium - **Evidence for warning:** The publish build deliberately runs an obfuscation step on the shipped code., The MCP install tool retrieves an install command from the authenticated portal and passes it to a child-process API., The MCP package manager can fetch and install a package when no local version is present; the obfuscated implementation limits verification of its safeguards. - **Evidence against:** The package has no preinstall, install, or postinstall hook; its prepublishOnly script is for publishing., The observed install path is part of an MCP installation tool and does not by itself establish covert or unconsented execution. ## Affected versions and remediation This report applies to @funny-booth/agent-core@0.1.18. - Review the evidence and your use of @funny-booth/agent-core@0.1.18 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. ## Public findings ### 1. Low: Non Install Lifecycle Scripts - **Category:** Manifest - **Confidence:** 80.0% Package declares lifecycle scripts that are not normally run for registry tarball installs. ### 2. Low: Scripts Present - **Category:** Manifest - **Confidence:** 100.0% Package declares npm scripts. ### 3. Medium: Dynamic Require - **Category:** Source - **Confidence:** 75.0% - **Path:** dist/mcpPackages.js - **Public source:** [View source]() Package source references dynamic require/import behavior. Public source snippet (untrusted): ```javascript L1: 'use strict';const _0x787838=_0x1029;(function(_0x1f5c98,_0x56f3fb){const _0x2c87ae=_0x1029,_0x5ca025=_0x1f5c98();while(!![]){try{const _0x532120=-parseInt(_0x2c87ae(0x218))/0x1*(-... ``` ### 4. Medium: Network - **Category:** Source - **Confidence:** 75.0% Package source references network APIs. ### 5. Medium: Environment Vars - **Category:** Source - **Confidence:** 75.0% Package source references environment variables. ### 6. Low: Filesystem - **Category:** Source - **Confidence:** 70.0% Package source references filesystem APIs. ### 7. High: Same File Env Network Execution - **Category:** Source - **Confidence:** 85.0% - **Path:** dist/index.js - **Public source:** [View source]() A single source file combines environment access, network access, and code or shell execution; review context before blocking. Public source snippet (untrusted): ```javascript L1: #!/usr/bin/env node L2: 'use strict';const _0x1fa408=_0x415c;(function(_0x252b9d,_0x3065e0){const _0x18e36a=_0x415c,_0x254959=_0x252b9d();while(!![]){try{const _0x4d7958=parseInt(_0x18e36a(0x1b6))/0x1+-pa... ``` ### 8. High: Obfuscated Payload Loader - **Category:** Source - **Confidence:** 86.0% - **Path:** dist/mcpPackages.js - **Public source:** [View source]() Source contains an obfuscated payload loader that reconstructs and executes hidden code. Public source snippet (untrusted): ```javascript L1: 'use strict';const _0x787838=_0x1029;(function(_0x1f5c98,_0x56f3fb){const _0x2c87ae=_0x1029,_0x5ca025=_0x1f5c98();while(!![]){try{const _0x532120=-parseInt(_0x2c87ae(0x218))/0x1*(-... ``` ### 9. High: Obfuscated - **Category:** Supply Chain - **Confidence:** 100.0% Package source appears deliberately obfuscated. ### 10. Low: High Entropy Strings - **Category:** Supply Chain - **Confidence:** 55.0% Package source contains high-entropy string patterns. ### 11. Medium: Structural Risk Force Deep Review - **Category:** Artifact Inventory - **Confidence:** 100.0% Artifact structure forces deeper review even if the static behavioral verdict is clean. ### 12. Low: No License - **Category:** Manifest - **Confidence:** 80.0% Package manifest does not declare a clear license. ### 13. Critical: Previous Version Dangerous Delta - **Category:** Supply Chain - **Confidence:** 93.0% - **Path:** dist/index.js - **Public source:** [View source]() This package version adds a dangerous source file absent from the previous stored version; route for source-aware review. Public source snippet (untrusted): ```javascript matchType = previous_version_dangerous_delta matchedPackage = @funny-booth/agent-core@0.1.15 matchedIdentity = npm:QGZ1bm55LWJvb3RoL2FnZW50LWNvcmU:0.1.15 similarity = 0.867 summary = stored previous version shares package body but lacks this dangerous source file ``` ## Dependencies and install lifecycle - **Lifecycle scripts present:** Yes - **Published lifecycle scripts:** prepublishOnly - **Dependencies:** 2 - **Optional dependencies:** 0 - **Peer dependencies:** 0 - **Development dependencies:** 3 - **Published dependency-graph edges:** 2 ### Published dependency entries - @modelcontextprotocol/sdk ^1.0.0 (Dependency) - zod ^3.25.0 (Dependency) ## Package metadata - **Package:** @funny-booth/agent-core - **Ecosystem:** npm - **Version:** 0.1.18 - **License:** UNLICENSED - **Version published:** 2026-10-11T11:24:10.122Z - **Package first seen:** 2026-07-16T11:19:21.853Z - **Package last seen:** 2026-10-23T02:32:07.726Z - **Known versions:** 38 - **Latest version:** 0.1.42 - **Appeal under review:** No - **Description:** AIエージェント起動CLI（共有ランチャー + MCPサーバー） - **Deprecated:** 古い版です。最新版を使ってください - **Maintainers:** funny-booth - **Runtime engines:** node: \>=18 - **Artifact files:** 17 - **Artifact unpacked size:** 68,732 bytes - **Artifact signatures:** 2 - **Attestations:** No ## References - [HTML security report]() - [Repository]() - [Homepage]() - [Issues]()