feat(todo-enforcer): add skipAgents option and improve permission check

- Add skipAgents option to skip continuation for specified agents
- Default skip: Prometheus (Planner)
- Improve tool permission check to handle 'allow'/'deny' string values
- Add agent name detection from session messages

🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

src/hooks/todo-continuation-enforcer.test.ts

@@ -349,6 +349,25 @@ describe("todo-continuation-enforcer", () => {
     expect(promptCalls).toHaveLength(0)
   })
 
+  test("should accept skipAgents option without error", async () => {
+    // #given - session with skipAgents configured for Prometheus
+    const sessionID = "main-prometheus-option"
+    setMainSession(sessionID)
+
+    // #when - create hook with skipAgents option (should not throw)
+    const hook = createTodoContinuationEnforcer(createMockPluginInput(), {
+      skipAgents: ["Prometheus (Planner)", "custom-agent"],
+    })
+
+    // #then - handler works without error
+    await hook.handler({
+      event: { type: "session.idle", properties: { sessionID } },
+    })
+
+    await new Promise(r => setTimeout(r, 100))
+    expect(toastCalls.length).toBeGreaterThanOrEqual(1)
+  })
+
   test("should show countdown toast updates", async () => {
     // #given - session with incomplete todos
     const sessionID = "main-toast"

src/hooks/todo-continuation-enforcer.ts

@@ -11,8 +11,11 @@ import { log } from "../shared/logger"
 
 const HOOK_NAME = "todo-continuation-enforcer"
 
+const DEFAULT_SKIP_AGENTS = ["Prometheus (Planner)"]
+
 export interface TodoContinuationEnforcerOptions {
   backgroundManager?: BackgroundManager
+  skipAgents?: string[]
 }
 
 export interface TodoContinuationEnforcer {
@@ -89,7 +92,7 @@ export function createTodoContinuationEnforcer(
   ctx: PluginInput,
   options: TodoContinuationEnforcerOptions = {}
 ): TodoContinuationEnforcer {
-  const { backgroundManager } = options
+  const { backgroundManager, skipAgents = DEFAULT_SKIP_AGENTS } = options
   const sessions = new Map<string, SessionState>()
 
   function getState(sessionID: string): SessionState {
@@ -184,17 +187,19 @@ export function createTodoContinuationEnforcer(
     const messageDir = getMessageDir(sessionID)
     const prevMessage = messageDir ? findNearestMessageWithFields(messageDir) : null
 
-    const hasWritePermission = !prevMessage?.tools ||
-      (prevMessage.tools.write !== false && prevMessage.tools.edit !== false)
-
-    if (!hasWritePermission) {
-      log(`[${HOOK_NAME}] Skipped: agent lacks write permission`, { sessionID, agent: prevMessage?.agent })
+    const agentName = prevMessage?.agent
+    if (agentName && skipAgents.includes(agentName)) {
+      log(`[${HOOK_NAME}] Skipped: agent in skipAgents list`, { sessionID, agent: agentName })
       return
     }
 
-    const agentName = prevMessage?.agent?.toLowerCase() ?? ""
-    if (agentName === "plan" || agentName === "planner-sisyphus") {
-      log(`[${HOOK_NAME}] Skipped: plan mode agent`, { sessionID, agent: prevMessage?.agent })
+    const editPermission = prevMessage?.tools?.edit
+    const writePermission = prevMessage?.tools?.write
+    const hasWritePermission = !prevMessage?.tools ||
+      ((editPermission !== false && editPermission !== "deny") &&
+       (writePermission !== false && writePermission !== "deny"))
+    if (!hasWritePermission) {
+      log(`[${HOOK_NAME}] Skipped: agent lacks write permission`, { sessionID, agent: prevMessage?.agent })
       return
     }
 
@@ -324,6 +329,28 @@ export function createTodoContinuationEnforcer(
         return
       }
 
+      let agentName: string | undefined
+      try {
+        const messagesResp = await ctx.client.session.messages({
+          path: { id: sessionID },
+        })
+        const messages = (messagesResp.data ?? []) as Array<{ info?: { agent?: string } }>
+        for (let i = messages.length - 1; i >= 0; i--) {
+          if (messages[i].info?.agent) {
+            agentName = messages[i].info?.agent
+            break
+          }
+        }
+      } catch (err) {
+        log(`[${HOOK_NAME}] Failed to fetch messages for agent check`, { sessionID, error: String(err) })
+      }
+
+      log(`[${HOOK_NAME}] Agent check`, { sessionID, agentName, skipAgents })
+      if (agentName && skipAgents.includes(agentName)) {
+        log(`[${HOOK_NAME}] Skipped: agent in skipAgents list`, { sessionID, agent: agentName })
+        return
+      }
+
       startCountdown(sessionID, incompleteCount, todos.length)
       return
     }