feat(task-toast): display skills and concurrency info in toast

- Add skills field to TrackedTask and LaunchInput types
- Show skills in task list message as [skill1, skill2]
- Add concurrency slot info [running/limit] in Running header
- Pass skills from sisyphus_task to toast manager (sync & background)
- Add unit tests for new toast features

src/features/background-agent/manager.ts

@@ -132,6 +132,7 @@ export class BackgroundManager {
         description: input.description,
         agent: input.agent,
         isBackground: true,
+        skills: input.skills,
       })
     }
 

src/features/background-agent/types.ts

@@ -40,6 +40,7 @@ export interface LaunchInput {
   parentMessageID: string
   parentModel?: { providerID: string; modelID: string }
   model?: { providerID: string; modelID: string }
+  skills?: string[]
 }
 
 export interface ResumeInput {

src/features/task-toast-manager/manager.test.ts

@@ -0,0 +1,145 @@
+import { describe, test, expect, beforeEach, mock } from "bun:test"
+import { TaskToastManager } from "./manager"
+import type { ConcurrencyManager } from "../background-agent/concurrency"
+
+describe("TaskToastManager", () => {
+  let mockClient: {
+    tui: {
+      showToast: ReturnType<typeof mock>
+    }
+  }
+  let toastManager: TaskToastManager
+  let mockConcurrencyManager: ConcurrencyManager
+
+  beforeEach(() => {
+    mockClient = {
+      tui: {
+        showToast: mock(() => Promise.resolve()),
+      },
+    }
+    mockConcurrencyManager = {
+      getConcurrencyLimit: mock(() => 5),
+    } as unknown as ConcurrencyManager
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    toastManager = new TaskToastManager(mockClient as any, mockConcurrencyManager)
+  })
+
+  describe("skills in toast message", () => {
+    test("should display skills when provided", () => {
+      // #given - a task with skills
+      const task = {
+        id: "task_1",
+        description: "Test task",
+        agent: "Sisyphus-Junior",
+        isBackground: true,
+        skills: ["playwright", "git-master"],
+      }
+
+      // #when - addTask is called
+      toastManager.addTask(task)
+
+      // #then - toast message should include skills
+      expect(mockClient.tui.showToast).toHaveBeenCalled()
+      const call = mockClient.tui.showToast.mock.calls[0][0]
+      expect(call.body.message).toContain("playwright")
+      expect(call.body.message).toContain("git-master")
+    })
+
+    test("should not display skills section when no skills provided", () => {
+      // #given - a task without skills
+      const task = {
+        id: "task_2",
+        description: "Test task without skills",
+        agent: "explore",
+        isBackground: true,
+      }
+
+      // #when - addTask is called
+      toastManager.addTask(task)
+
+      // #then - toast message should not include skills prefix
+      expect(mockClient.tui.showToast).toHaveBeenCalled()
+      const call = mockClient.tui.showToast.mock.calls[0][0]
+      expect(call.body.message).not.toContain("Skills:")
+    })
+  })
+
+  describe("concurrency info in toast message", () => {
+    test("should display concurrency status in toast", () => {
+      // #given - multiple running tasks
+      toastManager.addTask({
+        id: "task_1",
+        description: "First task",
+        agent: "explore",
+        isBackground: true,
+      })
+      toastManager.addTask({
+        id: "task_2",
+        description: "Second task",
+        agent: "librarian",
+        isBackground: true,
+      })
+
+      // #when - third task is added
+      toastManager.addTask({
+        id: "task_3",
+        description: "Third task",
+        agent: "explore",
+        isBackground: true,
+      })
+
+      // #then - toast should show concurrency info
+      expect(mockClient.tui.showToast).toHaveBeenCalledTimes(3)
+      const lastCall = mockClient.tui.showToast.mock.calls[2][0]
+      // Should show "Running (3):" header
+      expect(lastCall.body.message).toContain("Running (3):")
+    })
+
+    test("should display concurrency limit info when available", () => {
+      // #given - a concurrency manager with known limit
+      const mockConcurrencyWithCounts = {
+        getConcurrencyLimit: mock(() => 5),
+        getRunningCount: mock(() => 2),
+        getQueuedCount: mock(() => 1),
+      } as unknown as ConcurrencyManager
+
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      const managerWithConcurrency = new TaskToastManager(mockClient as any, mockConcurrencyWithCounts)
+
+      // #when - a task is added
+      managerWithConcurrency.addTask({
+        id: "task_1",
+        description: "Test task",
+        agent: "explore",
+        isBackground: true,
+      })
+
+      // #then - toast should show concurrency status like "2/5 slots"
+      expect(mockClient.tui.showToast).toHaveBeenCalled()
+      const call = mockClient.tui.showToast.mock.calls[0][0]
+      expect(call.body.message).toMatch(/\d+\/\d+/)
+    })
+  })
+
+  describe("combined skills and concurrency display", () => {
+    test("should display both skills and concurrency info together", () => {
+      // #given - a task with skills and concurrency manager
+      const task = {
+        id: "task_1",
+        description: "Full info task",
+        agent: "Sisyphus-Junior",
+        isBackground: true,
+        skills: ["frontend-ui-ux"],
+      }
+
+      // #when - addTask is called
+      toastManager.addTask(task)
+
+      // #then - toast should include both skills and task count
+      expect(mockClient.tui.showToast).toHaveBeenCalled()
+      const call = mockClient.tui.showToast.mock.calls[0][0]
+      expect(call.body.message).toContain("frontend-ui-ux")
+      expect(call.body.message).toContain("Running (1):")
+    })
+  })
+})

src/features/task-toast-manager/manager.ts

@@ -18,15 +18,13 @@ export class TaskToastManager {
     this.concurrencyManager = manager
   }
 
-  /**
-   * Register a new task and show consolidated toast
-   */
   addTask(task: {
     id: string
     description: string
     agent: string
     isBackground: boolean
     status?: TaskStatus
+    skills?: string[]
   }): void {
     const trackedTask: TrackedTask = {
       id: task.id,
@@ -35,6 +33,7 @@ export class TaskToastManager {
       status: task.status ?? "running",
       startedAt: new Date(),
       isBackground: task.isBackground,
+      skills: task.skills,
     }
 
     this.tasks.set(task.id, trackedTask)
@@ -89,22 +88,31 @@ export class TaskToastManager {
     return `${hours}h ${minutes % 60}m`
   }
 
-  /**
-   * Build task list message
-   */
+  private getConcurrencyInfo(): string {
+    if (!this.concurrencyManager) return ""
+    const running = this.getRunningTasks()
+    const queued = this.getQueuedTasks()
+    const total = running.length + queued.length
+    const limit = this.concurrencyManager.getConcurrencyLimit("default")
+    if (limit === Infinity) return ""
+    return ` [${total}/${limit}]`
+  }
+
   private buildTaskListMessage(newTask: TrackedTask): string {
     const running = this.getRunningTasks()
     const queued = this.getQueuedTasks()
+    const concurrencyInfo = this.getConcurrencyInfo()
 
     const lines: string[] = []
 
     if (running.length > 0) {
-      lines.push(`Running (${running.length}):`)
+      lines.push(`Running (${running.length}):${concurrencyInfo}`)
       for (const task of running) {
         const duration = this.formatDuration(task.startedAt)
         const bgIcon = task.isBackground ? "⚡" : "🔄"
         const isNew = task.id === newTask.id ? " ← NEW" : ""
-        lines.push(`${bgIcon} ${task.description} (${task.agent}) - ${duration}${isNew}`)
+        const skillsInfo = task.skills?.length ? ` [${task.skills.join(", ")}]` : ""
+        lines.push(`${bgIcon} ${task.description} (${task.agent})${skillsInfo} - ${duration}${isNew}`)
       }
     }
 
@@ -113,7 +121,8 @@ export class TaskToastManager {
       lines.push(`Queued (${queued.length}):`)
       for (const task of queued) {
         const bgIcon = task.isBackground ? "⏳" : "⏸️"
-        lines.push(`${bgIcon} ${task.description} (${task.agent})`)
+        const skillsInfo = task.skills?.length ? ` [${task.skills.join(", ")}]` : ""
+        lines.push(`${bgIcon} ${task.description} (${task.agent})${skillsInfo}`)
       }
     }
 

src/features/task-toast-manager/types.ts

@@ -7,6 +7,7 @@ export interface TrackedTask {
   status: TaskStatus
   startedAt: Date
   isBackground: boolean
+  skills?: string[]
 }
 
 export interface TaskToastOptions {

src/tools/sisyphus-task/tools.ts

@@ -221,6 +221,7 @@ Use \`background_output\` with task_id="${task.id}" to check progress.`
             parentMessageID: ctx.messageID,
             parentModel,
             model: categoryModel,
+            skills: args.skills,
           })
 
           ctx.metadata?.({
@@ -268,6 +269,7 @@ System notifies on completion. Use \`background_output\` with task_id="${task.id
             description: args.description,
             agent: agentToUse,
             isBackground: false,
+            skills: args.skills,
           })
         }