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Build a brand-new MCP integration from scratch with a guided wizard.
Passed 21 of 23 test cases with the skill, and 7 of 23 without it.
and 19 more in the full report
14 fixed7 passed either way2 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 14 test cases the skill fixed. Same model, same prompt, with and without the skill.
Upon completing the creation of a new MCP server in Dex, which system tracking file and event name should be used for silent usage logging if analytics are enabled?
| Checked | Without skill | With skill |
|---|---|---|
| Logs usage in System/usage_log.md. | Missed | Passed |
| Calls track_event with event_name mcp_created without including service names. | Missed | Passed |
The instructions your model reads when the skill loads.
In plain English: A guided wizard that helps you create and integrate an MCP server into Dex. No coding knowledge required - you describe what you want, we build it together.
When to use it:
How to run it:
/create-mcp # Starts the wizard from the beginning
/create-mcp "calendar" # Jumps ahead with a service hint
AI models like Claude are fundamentally probabilistic - they generate responses by predicting the most likely next token based on patterns in their training data. This is powerful for reasoning and language, but dangerous for facts:
| Question | Without MCP | With MCP |
|---|---|---|
| "What's on my calendar today?" | "I don't have access to your calendar, but typically..." | Queries actual calendar, returns real events |
| "What are our top support tickets this week?" | "Based on typical patterns, around 10-15..." | Queries Zendesk: "32 tickets, 12 P0, avg response time 2.3hrs" |
| "Did Sarah email about the roadmap?" | "I can't access your email..." | Searches Gmail, finds 3 matching threads |
Without MCP, AI can only:
MCP (Model Context Protocol) provides guardrails and structure for AI interactions with external systems:
test cases passed, vs 7 / 23 without
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