diff --git a/lib/folk-blender.ts b/lib/folk-blender.ts
index 08766e3..f9b9772 100644
--- a/lib/folk-blender.ts
+++ b/lib/folk-blender.ts
@@ -384,20 +384,25 @@ export class FolkBlender extends FolkShape {
 			this.#renderResult();
 		}
 
-		// Health check
-		fetch("/api/blender-gen/health").then(r => r.json()).then((h: any) => {
-			if (!h.available && this.#generateBtn) {
-				this.#generateBtn.disabled = true;
-				this.#generateBtn.title = (h.issues || []).join(", ") || "Blender service unavailable";
-			} else if (h.warnings?.length && this.#generateBtn) {
-				this.#generateBtn.title = h.warnings.join(", ");
-			}
-		}).catch(() => {
-			if (this.#generateBtn) {
-				this.#generateBtn.disabled = true;
-				this.#generateBtn.title = "Cannot reach Blender health endpoint";
-			}
-		});
+		// Health check with retry (container may still be starting)
+		const checkHealth = (attempt = 0) => {
+			fetch("/api/blender-gen/health").then(r => r.json()).then((h: any) => {
+				if (!h.available && this.#generateBtn) {
+					if (attempt < 2) { setTimeout(() => checkHealth(attempt + 1), 3000); return; }
+					this.#generateBtn.disabled = true;
+					this.#generateBtn.title = (h.issues || []).join(", ") || "Blender service unavailable";
+				} else if (h.warnings?.length && this.#generateBtn) {
+					this.#generateBtn.title = h.warnings.join(", ");
+				}
+			}).catch(() => {
+				if (attempt < 2) { setTimeout(() => checkHealth(attempt + 1), 3000); return; }
+				if (this.#generateBtn) {
+					this.#generateBtn.disabled = true;
+					this.#generateBtn.title = "Cannot reach Blender health endpoint";
+				}
+			});
+		};
+		checkHealth();
 
 		return root;
 	}
diff --git a/lib/folk-freecad.ts b/lib/folk-freecad.ts
index b2ad8d5..1ff03df 100644
--- a/lib/folk-freecad.ts
+++ b/lib/folk-freecad.ts
@@ -311,18 +311,23 @@ export class FolkFreeCAD extends FolkShape {
 			this.#renderResult();
 		}
 
-		// Health check
-		fetch("/api/freecad/health").then(r => r.json()).then((h: any) => {
-			if (!h.available && this.#generateBtn) {
-				this.#generateBtn.disabled = true;
-				this.#generateBtn.title = h.error || "FreeCAD MCP server unavailable";
-			}
-		}).catch(() => {
-			if (this.#generateBtn) {
-				this.#generateBtn.disabled = true;
-				this.#generateBtn.title = "Cannot reach FreeCAD health endpoint";
-			}
-		});
+		// Health check with retry (container may still be starting)
+		const checkHealth = (attempt = 0) => {
+			fetch("/api/freecad/health").then(r => r.json()).then((h: any) => {
+				if (!h.available && this.#generateBtn) {
+					if (attempt < 2) { setTimeout(() => checkHealth(attempt + 1), 3000); return; }
+					this.#generateBtn.disabled = true;
+					this.#generateBtn.title = h.error || "FreeCAD MCP server unavailable";
+				}
+			}).catch(() => {
+				if (attempt < 2) { setTimeout(() => checkHealth(attempt + 1), 3000); return; }
+				if (this.#generateBtn) {
+					this.#generateBtn.disabled = true;
+					this.#generateBtn.title = "Cannot reach FreeCAD health endpoint";
+				}
+			});
+		};
+		checkHealth();
 
 		return root;
 	}
diff --git a/lib/folk-kicad.ts b/lib/folk-kicad.ts
index 12baaab..7b76483 100644
--- a/lib/folk-kicad.ts
+++ b/lib/folk-kicad.ts
@@ -397,18 +397,23 @@ export class FolkKiCAD extends FolkShape {
 			this.#showExports();
 		}
 
-		// Health check
-		fetch("/api/kicad/health").then(r => r.json()).then((h: any) => {
-			if (!h.available && this.#generateBtn) {
-				this.#generateBtn.disabled = true;
-				this.#generateBtn.title = h.error || "KiCAD MCP server unavailable";
-			}
-		}).catch(() => {
-			if (this.#generateBtn) {
-				this.#generateBtn.disabled = true;
-				this.#generateBtn.title = "Cannot reach KiCAD health endpoint";
-			}
-		});
+		// Health check with retry (container may still be starting)
+		const checkHealth = (attempt = 0) => {
+			fetch("/api/kicad/health").then(r => r.json()).then((h: any) => {
+				if (!h.available && this.#generateBtn) {
+					if (attempt < 2) { setTimeout(() => checkHealth(attempt + 1), 3000); return; }
+					this.#generateBtn.disabled = true;
+					this.#generateBtn.title = h.error || "KiCAD MCP server unavailable";
+				}
+			}).catch(() => {
+				if (attempt < 2) { setTimeout(() => checkHealth(attempt + 1), 3000); return; }
+				if (this.#generateBtn) {
+					this.#generateBtn.disabled = true;
+					this.#generateBtn.title = "Cannot reach KiCAD health endpoint";
+				}
+			});
+		};
+		checkHealth();
 
 		return root;
 	}