Suspicious: langchain-mercadopago-api - README.md | Skillgate

Skillgate scanned README.md in langchain-mercadopago-api and rated it Suspicious with a risk score of 50/100 (2 detections).

Skillgate found behaviour that needs a human decision: it may be a legitimate but powerful pattern, or an attack. Review the flagged lines in the source before installing.

What was found

• SG-071 Hardcoded Provider Secret in Config - HIGH: Hardcoded API keys / tokens / passwords / connection URIs in agent and MCP config files. Covers Supabase (sbp_, JWT), Postgres/MySQL/MongoDB/Redis URIs with embedded password, Tavily / Firecrawl / Brave / Context7 / ref-tools / TestSprite / OpenRouter branded keys, Pipedream MCP UUID endpoints, and JSON/env-line patterns where a sensitive-named key holds a high-entropy value.
• SG-015 Unusual Metadata - LOW: YAML fields not in the standard schema

What to do

Read the flagged lines in the source file yourself before installing it or letting an agent load it. Every detection above links to the rule that fired, with the conditions that trigger it and remediation where one exists. Open the interactive report for evidence lines and context.

About Skillgate

Skillgate is a free scanner from Mitiga Labs for AI agent skills, hooks, MCP configs, and instruction files (SKILL.md, CLAUDE.md, AGENTS.md, .cursorrules, .claude/settings.json). It runs static rules plus an LLM judge and maps each finding to a known attack technique. Static analysis only: it never executes the file it scans. No scanner is 100% accurate - a verdict is a signal, not a guarantee. Browse all detection rules.