refactor: consolidate expertise into agents

Commands load agent expertise directly via Task tool spawning.
Thin orchestrator pattern — agents have methodology baked in.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

commands/gsd/audit-milestone.md

@@ -18,7 +18,7 @@ Verify milestone achieved its definition of done. Check requirements coverage, c
 </objective>
 
 <execution_context>
-@~/.claude/get-shit-done/references/principles.md
+<!-- Spawns gsd-integration-checker agent which has all audit expertise baked in -->
 </execution_context>
 
 <context>

commands/gsd/create-roadmap.md

@@ -35,11 +35,9 @@ Roadmaps define what work happens in what order. Phases map to requirements.
 </objective>
 
 <execution_context>
-@~/.claude/get-shit-done/references/principles.md
 @~/.claude/get-shit-done/workflows/create-roadmap.md
 @~/.claude/get-shit-done/templates/roadmap.md
 @~/.claude/get-shit-done/templates/state.md
-@~/.claude/get-shit-done/references/goal-backward.md
 </execution_context>
 
 <context>

commands/gsd/define-requirements.md

@@ -36,7 +36,6 @@ Output: `.planning/REQUIREMENTS.md`
 </objective>
 
 <execution_context>
-@~/.claude/get-shit-done/references/principles.md
 @~/.claude/get-shit-done/workflows/define-requirements.md
 @~/.claude/get-shit-done/templates/requirements.md
 </execution_context>

commands/gsd/discuss-milestone.md

@@ -11,7 +11,6 @@ Output: Context gathered, then routes to /gsd:new-milestone
 </objective>
 
 <execution_context>
-@~/.claude/get-shit-done/references/principles.md
 @~/.claude/get-shit-done/workflows/discuss-milestone.md
 </execution_context>
 

commands/gsd/discuss-phase.md

@@ -18,7 +18,6 @@ Extract implementation decisions that downstream agents need — researcher and
 </objective>
 
 <execution_context>
-@~/.claude/get-shit-done/references/principles.md
 @~/.claude/get-shit-done/workflows/discuss-phase.md
 @~/.claude/get-shit-done/templates/context.md
 </execution_context>

commands/gsd/execute-phase.md

@@ -23,7 +23,6 @@ Context budget: ~15% orchestrator, 100% fresh per subagent.
 </objective>
 
 <execution_context>
-@~/.claude/get-shit-done/references/principles.md
 @~/.claude/get-shit-done/references/ui-brand.md
 @~/.claude/get-shit-done/workflows/execute-phase.md
 </execution_context>

commands/gsd/execute-plan.md

@@ -25,7 +25,7 @@ Context budget: ~15% orchestrator, 100% fresh for subagent.
 </objective>
 
 <execution_context>
-@~/.claude/get-shit-done/references/principles.md
+<!-- Spawns gsd-executor agent which has all execution expertise baked in -->
 </execution_context>
 
 <context>

commands/gsd/plan-milestone-gaps.md

@@ -19,8 +19,7 @@ One command creates all fix phases — no manual `/gsd:add-phase` per gap.
 </objective>
 
 <execution_context>
-@~/.claude/get-shit-done/references/principles.md
-@~/.claude/get-shit-done/workflows/plan-phase.md
+<!-- Spawns gsd-planner agent which has all planning expertise baked in -->
 </execution_context>
 
 <context>