Add Xquik social intelligence skill

[kriptoburak]

Summary

• Add an xquik-social-intelligence skill for analyzing X posts and campaign opportunities with Xquik data.
• Include opportunity-scoring guidance for content, campaign, and competitive analysis.
• Link to public Xquik API docs, OpenAPI schema, MCP docs, and MCP manifest.

Validation

• git diff --cached --check
• Public diff scanned for non-public implementation details, credentials, and pricing details

[gemini-code-assist]

Code Review

This pull request introduces the xquik-social-intelligence skill, which enables analyzing X data from Xquik exports, REST APIs, or MCP outputs to identify audience themes, creator segments, and growth opportunities. The review feedback suggests key improvements, including adding a guardrail against indirect prompt injection by treating retrieved content as untrusted, specifying the base URL for REST requests, defining how to construct X status URLs, and clarifying the calculation of the total opportunity score.

Important

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[kriptoburak]

Addressed the review suggestions in 8e7b10e: added untrusted-content handling, the REST base URL, X status URL construction, and the total opportunity score formula.

Validation:

• git diff --check
• Public diff scanned for non-public implementation details, credentials, and pricing details