[Feature] Agent Skills & Instruction Files

[djm81]

Feature: Agent Skills & Instruction Files

Parent Epic: #257 AI IDE Integration

Groups the agent skill definitions, instruction files, and intent skills work for AI IDE integration.

Child User Stories

• Agent Skill for Spec Intelligence (Skills-First Interface) #251 — ai-integration-01 (agent skill) — open
• Cross-Platform AI IDE Instruction Files #253 — ai-integration-03 (instruction files) — open
• [Change] Intent Engineering Skills — SQUER Workflow for AI IDEs #349 — ai-integration-04 (intent skills) — open