add orchestrator/worker agents; update cascade defaults to deepseek v4

agents/orchestrator.json

@@ -0,0 +1,24 @@
+{
+  "prompt": [
+    "$OLLIE/x/prime SYSTEM_PROMPT",
+    "$OLLIE/x/prime agent-orchestrator",
+    "$OLLIE/x/prime tools-file",
+    "$OLLIE/x/prime tools-cascade"
+  ],
+  "model": "deepseek/deepseek-v4-pro",
+  "maxSteps": 30,
+  "temperature": 0.3,
+  "maxTokens": 8192,
+  "allowExecutors": ["call_tool", "pipe"],
+  "allowTools": [
+    "file_read",
+    "file_glob",
+    "file_grep",
+    "cascade"
+  ],
+  "hooks": {
+    "turnError": [
+      "$OLLIE/x/freeloader $OLLIE_SESSION_ID"
+    ]
+  }
+}

agents/worker.json

@@ -0,0 +1,20 @@
+{
+  "prompt": [
+    "$OLLIE/x/prime SYSTEM_PROMPT",
+    "$OLLIE/x/prime tools-file",
+    "$OLLIE/x/prime tools-lsp"
+  ],
+  "model": "deepseek/deepseek-v4-flash",
+  "maxSteps": 50,
+  "temperature": 0.5,
+  "maxTokens": 16384,
+  "allowExecutors": ["execute_code", "call_tool", "pipe"],
+  "trustedTools": [
+    "execute_code"
+  ],
+  "hooks": {
+    "turnError": [
+      "$OLLIE/x/freeloader $OLLIE_SESSION_ID"
+    ]
+  }
+}

doc/env.sample

@@ -49,3 +49,11 @@
 # u/complete: backend and model for acme code completion (required by u/complete)
 #OLLIE_COMPLETE_BACKEND=ollama
 #OLLIE_COMPLETE_MODEL=qwen3:latest
+
+# cascade: planner (orchestrator) model for u/cascade script
+#OLLIE_CASCADE_PLAN_BACKEND=openrouter
+#OLLIE_CASCADE_PLAN_MODEL=deepseek/deepseek-v4-pro
+
+# cascade: worker model for spawned agents
+#OLLIE_CASCADE_BACKEND=openrouter
+#OLLIE_CASCADE_MODEL=deepseek/deepseek-v4-flash

prompts/agent-orchestrator.md

@@ -0,0 +1,43 @@
+You are an orchestrator agent. You plan and delegate — you never implement.
+
+# Role
+
+- Decompose tasks into self-contained subtasks.
+- Delegate each subtask to a worker via `cascade`.
+- Read files for context. Never write or edit files yourself.
+- Synthesize worker results into a coherent response.
+
+# Constraints
+
+- **No code generation.** You do not write, edit, or produce code. Workers do that.
+- **No execute_code.** You cannot run shell commands or scripts directly.
+- **Read-only filesystem.** You may use `file_read`, `file_glob`, and `file_grep` to gather context. That is all.
+- **Delegation via cascade only.** Use `cascade` to dispatch work to workers.
+
+# Delegation protocol
+
+Delegate with `call_tool`:
+```
+call_tool: calls=[{tool: "cascade", args: ["<fully self-contained instruction>"]}]
+```
+
+Parallel fan-out:
+```
+call_tool: calls=[
+  {tool: "cascade", args: ["<task A>"]},
+  {tool: "cascade", args: ["<task B>"]}
+]
+```
+
+# Writing good instructions
+
+Each cascade instruction must be **completely self-contained**. The worker has no context beyond what you provide. Include:
+- Absolute file paths
+- Exact expected behavior or output format
+- Relevant code snippets or constraints the worker needs
+
+# After delegation
+
+- Do not wait or poll. End your turn after dispatching.
+- Workers report back asynchronously via `[from=...]` messages.
+- When results arrive, verify they satisfy the original task, then synthesize a final answer.

scripts/u/cascade

@@ -21,10 +21,10 @@ set -euo pipefail
 OLLIE="${OLLIE:-$HOME/mnt/ollie}"
 B="$OLLIE/s/b"
 
-PB="${OLLIE_CASCADE_PLAN_BACKEND:-anthropic}"
+PB="${OLLIE_CASCADE_PLAN_BACKEND:-openrouter}"
-PM="${OLLIE_CASCADE_PLAN_MODEL:-claude-sonnet-4-20250514}"
+PM="${OLLIE_CASCADE_PLAN_MODEL:-deepseek/deepseek-v4-pro}"
-WB="${OLLIE_CASCADE_BACKEND:-ollama}"
+WB="${OLLIE_CASCADE_BACKEND:-openrouter}"
-WM="${OLLIE_CASCADE_MODEL:-qwen2.5-coder:14b}"
+WM="${OLLIE_CASCADE_MODEL:-deepseek/deepseek-v4-flash}"
 
 die() { printf 'cascade: %s\n' "$*" >&2; exit 1; }
 

tools/cascade

@@ -5,8 +5,8 @@
 set -euo pipefail
 
 OLLIE="${OLLIE:-$HOME/mnt/ollie}"
-BACKEND="${OLLIE_CASCADE_BACKEND:-ollama}"
+BACKEND="${OLLIE_CASCADE_BACKEND:-openrouter}"
-MODEL="${OLLIE_CASCADE_MODEL:-qwen2.5-coder:14b}"
+MODEL="${OLLIE_CASCADE_MODEL:-deepseek/deepseek-v4-flash}"
 
 die() { printf 'cascade: %s\n' "$*" >&2; exit 1; }
 
@@ -21,7 +21,8 @@ id="${2:-cascade-$(date +%s%N)-$$-$(hostname -s)}"
 kv="name=${id}
 cwd=$(pwd)
 backend=${BACKEND}
-model=${MODEL}"
+model=${MODEL}
+agent=worker"
 printf '%s\n' "$kv" > "$OLLIE/s/new" || die "failed to create session"
 
 B="$OLLIE/s/$id"