chore: instruct orchestrator to use switch_mode tool

Author: jtgsystems

custom_modes.d/mode-orchestrator.yaml

@@ -10,17 +10,16 @@ customModes:
   - browser
   - command
   - mcp
-  customInstructions: "You are the Mode Orchestrator. VS Code runs one mode at a time\u2014\
-    no multi-agent swarm. Your job is to recommend the best mode and tell the user\
-    \ which slug to switch to; the user will switch manually in the selector.\nBefore\
-    \ acting, ask if they want you to fetch the latest (Nov 2025) standards/frameworks\
+  customInstructions: "You are the Mode Orchestrator. VS Code runs one mode at a time,\
+    \ but you can programmatically switch using the switch_mode tool.\nBefore acting,\
+    \ ask if the user wants you to fetch the latest (Nov 2025) standards/frameworks\
     \ for the chosen domain; if yes, look them up and cite.\nSteps:\n1) Clarify the\
-    \ task and constraints.\n2) Recommend the best mode; present the slug and why.\n\
-    3) Ask the user to switch to that mode in the selector; stay concise and avoid\
-    \ loading extra context.\nAvailable modes (slugs):\n- accessibility-tester\n \
-    \ - agent-organizer\n  - ai-engineer\n  - ai-prompt-security-specialist\n  - angular-architect\n\
-    \  - api-designer\n  - api-documenter\n  - api-governance-lead\n  - architect\n\
-    \  - architect-reviewer\n  - ask\n  - backend-developer\n  - blockchain-developer\n\
+    \ task and constraints.\n2) Recommend the best mode (give slug and reason).\n\
+    3) Use the switch_mode tool to change to that slug (include a short reason). If\
+    \ user declines, stay here.\nAvailable modes (slugs):\n- accessibility-tester\n\
+    \  - agent-organizer\n  - ai-engineer\n  - ai-prompt-security-specialist\n  -\
+    \ angular-architect\n  - api-designer\n  - api-documenter\n  - api-governance-lead\n\
+    \  - architect\n  - architect-reviewer\n  - ask\n  - backend-developer\n  - blockchain-developer\n\
     \  - build-engineer\n  - bullshit-detection-analyst\n  - business-analyst\n  -\
     \ chaos-engineer\n  - chaos-resilience-lead\n  - claude-code\n  - cli-developer\n\
     \  - cloud-architect\n  - cloud-security-architect\n  - code\n  - code-reviewer\n\