diff --git a/.changeset/remove-think-tool.md b/.changeset/remove-think-tool.md
new file mode 100644
index 00000000..c910e71b
--- /dev/null
+++ b/.changeset/remove-think-tool.md
@@ -0,0 +1,8 @@
+---
+"create-expert": patch
+---
+
+Remove non-existent `think` tool from Expert templates
+
+The `think` tool was referenced in pick lists but doesn't exist in @perstack/base.
+This removes `think` from all Expert templates (Main, Demo, Setup, Doctor).
diff --git a/apps/create-expert/src/lib/create-expert-toml.ts b/apps/create-expert/src/lib/create-expert-toml.ts
index 53ee5ca2..14334924 100644
--- a/apps/create-expert/src/lib/create-expert-toml.ts
+++ b/apps/create-expert/src/lib/create-expert-toml.ts
@@ -128,7 +128,7 @@ Your role and capabilities...
 type = "mcpStdioSkill"
 command = "npx"
 packageName = "@perstack/base"
-pick = ["readTextFile", "think", "attemptCompletion"]
+pick = ["readTextFile", "attemptCompletion"]
 \`\`\`
 
 ### Demo Expert Template
@@ -162,7 +162,7 @@ Provide a realistic demonstration that helps users understand:
 type = "mcpStdioSkill"
 command = "npx"
 packageName = "@perstack/base"
-pick = ["think", "attemptCompletion"]
+pick = ["attemptCompletion"]
 \`\`\`
 
 ### Setup Expert Template (only if external deps exist)
@@ -206,7 +206,7 @@ Output: "✓ Setup complete! Try: npx perstack run <name> \\"your query\\""
 type = "mcpStdioSkill"
 command = "npx"
 packageName = "@perstack/base"
-pick = ["readTextFile", "editTextFile", "exec", "think", "attemptCompletion"]
+pick = ["readTextFile", "editTextFile", "exec", "attemptCompletion"]
 \`\`\`
 
 ### Doctor Expert Template (only if external deps exist)
@@ -253,7 +253,7 @@ If no issues found:
 type = "mcpStdioSkill"
 command = "npx"
 packageName = "@perstack/base"
-pick = ["readTextFile", "exec", "think", "attemptCompletion"]
+pick = ["readTextFile", "exec", "attemptCompletion"]
 \`\`\`
 
 ## Design Principles