diff --git a/prompts/tools-cascade.md b/prompts/tools-cascade.md
index b53f51d..04a3d93 100644
--- a/prompts/tools-cascade.md
+++ b/prompts/tools-cascade.md
@@ -8,14 +8,21 @@ Delegate mechanical subtasks to a cheaper/weaker model. Fire-and-forget: returns
 
 **Calling convention**:
 ```
-call_tool: cascade instruction="<fully self-contained task description>" [id="<optional-name>"]
+call_tool: calls=[{tool: "cascade", args: ["<fully self-contained task description>"]}]
 ```
 
-Parallel — issue multiple calls in the same step; they execute concurrently:
+With explicit id:
 ```
-call_tool: cascade instruction="Read /src/a.go and list all exported functions"
-call_tool: cascade instruction="Read /src/b.go and list all exported functions"
-call_tool: cascade instruction="Read /src/c.go and list all exported functions"
+call_tool: calls=[{tool: "cascade", args: ["<instruction>", "<id>"]}]
+```
+
+Parallel — consecutive cascade calls fan out automatically (annotation-based):
+```
+call_tool: calls=[
+  {tool: "cascade", args: ["Read /src/a.go and list all exported functions"]},
+  {tool: "cascade", args: ["Read /src/b.go and list all exported functions"]},
+  {tool: "cascade", args: ["Read /src/c.go and list all exported functions"]}
+]
 ```
 
 **Returns** (KV, one per line):