agents-mcp
Installation
SKILL.md
MCP (Model Context Protocol) — Advisor & Reference
Specification: https://modelcontextprotocol.io/specification/2025-11-25 (November 2025)
When to Use MCP (Decision Tree)
| Scenario | Use MCP? | Why |
|---|---|---|
| Query PostgreSQL/MySQL/SQLite | Yes | Official servers exist, read-only by default |
| Access filesystem outside workspace | Yes | Scoped allowlists, audit trail |
| GitHub/Linear/Slack/Notion integration | Yes | Vendor MCP servers available |
| One-off HTTP API call | No | Use WebFetch or Bash curl |
| Internal API with auth | Maybe | Build custom MCP server if repeated, otherwise direct call |
| Need write access to production DB | Caution | Prefer read-only; if writes needed, scope tightly |
Rule of thumb: Use MCP when (1) an official/community server exists, (2) you need audit/permission control, or (3) you'll reuse the integration across sessions.