chore: initial project setup with agent guide

.agent/skills/gsd-do/SKILL.md

@@ -0,0 +1,26 @@
+---
+name: gsd-do
+description: Route freeform text to the right GSD command automatically
+---
+
+<objective>
+Analyze freeform natural language input and dispatch to the most appropriate GSD command.
+
+Acts as a smart dispatcher — never does the work itself. Matches intent to the best GSD command using routing rules, confirms the match, then hands off.
+
+Use when you know what you want but don't know which `/gsd-*` command to run.
+</objective>
+
+<execution_context>
+@.agent/get-shit-done/workflows/do.md
+@.agent/get-shit-done/references/ui-brand.md
+</execution_context>
+
+<context>
+$ARGUMENTS
+</context>
+
+<process>
+Execute the do workflow from @.agent/get-shit-done/workflows/do.md end-to-end.
+Route user intent to the best GSD command and invoke it.
+</process>