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+# Grok 4.3 + Grok Build Mastery Configuration for CORE (Example)
+# ----------------------------------------------------------------
+# Copy this file to your local .env (which is gitignored) and fill in values.
+# This is a reference/example only.
+
+# === Model & Reasoning ===
+GROK_MODEL=grok-4.3
+GROK_REASONING_EFFORT=high
+GROK_CONTEXT_BUDGET=800000
+
+# === Grok Build CLI Mastery Settings ===
+GROK_BUILD_SKILLS_DIR=skills/
+GROK_BUILD_PLAN_MODE_PREFERRED=true
+GROK_BUILD_ARENA_MODE=true
+GROK_BUILD_MAX_AGENTS=8
+GROK_BUILD_AUTO_INVOKE_SKILLS=true
+
+# === API / Auth (put real key only in your local .env) ===
+# XAI_API_KEY=your_key_here