feat(mpp-core): implement Task Management Tool for CodingAgent (#38)

* feat(mpp-ui): implement file context management with indexed search

- Add SelectedFileItem, FileChip, TopToolbar, FileSearchPopup components
- Add WorkspaceFileSearchProvider with pre-built file index for fast search
- Add IndexingState enum for tracking indexing progress
- Integrate file context into DevInEditorInput with buildAndSendMessage()
- Add Prompt Enhancement button to BottomToolbar
- Add AutoAwesome and History icons to AutoDevComposeIcons
- Add FileContext to EditorCallbacks for file context submission

Closes #35

* feat(mpp-core): add plan management data models and parser for task management

- Add TaskStatus enum (TODO, IN_PROGRESS, COMPLETED, FAILED, BLOCKED) and PlanPhase enum (PDCA cycle)
- Add CodeFileLink data class for markdown file link extraction
- Add PlanStep, PlanTask, AgentPlan data models with serialization support
- Add MarkdownPlanParser using pure Kotlin regex (no IntelliJ dependencies)
- Add PlanStateService with StateFlow and listener pattern for reactive updates
- Add PlanUpdateListener interface for UI notifications
- Add comprehensive unit tests for parser and state service
- Fix DocQLReturnAllTest missing Pending branch in when expressions

Part of #37

* feat(mpp-core): add PlanManagementTool for AI agent task planning

- Add PlanManagementTool with CREATE, UPDATE, COMPLETE_STEP, FAIL_STEP, VIEW actions
- Add PlanManagementParams, PlanManagementSchema, PlanManagementInvocation
- Add comprehensive unit tests for all tool actions
- Tool integrates with PlanStateService for state management

Part of #37

* feat(mpp-core): register PlanManagementTool in BuiltinToolsProvider

- Add PlanManagementTool to BuiltinToolsProvider.provide()
- Add executePlanManagementTool method in ToolOrchestrator
- Add tests for plan and task-boundary tool registration

Part of #37

* feat(mpp-ui): add PlanPanel UI component and integrate with ComposeRenderer

- Create PlanPanel composable with task and step display
- Add expandable task cards with progress tracking
- Implement status icons and colors for plan visualization
- Integrate plan state tracking in ComposeRenderer
- Handle plan tool calls to update UI state

Part of #37

* feat(mpp-core): add plan management guidance to system prompt and fix parameter parsing

- Add Planning and Task Management section to CodingAgentTemplate (EN and ZH)
- Document when to use planning, plan format, and plan actions
- Update Task Completion Strategy to include planning step
- Fix taskIndex/stepIndex parameter parsing in ToolOrchestrator to handle both Number and String types

Part of #37

* refactor(mpp-core): remove TaskBoundaryTool in favor of PlanManagementTool

- Remove TaskBoundaryTool.kt as PlanManagementTool provides superset functionality
- Remove TaskBoundaryTool from BuiltinToolsProvider and ToolOrchestrator
- Update ToolRegistryTest to remove task-boundary test
- Update comments referencing task-boundary
- Enhance PlanManagementTool with detailed KDoc documentation
- Fix tuiEmoji to use proper emoji character

Part of #37

* fix(executor): reduce shell command max timeout to 2 minutes

Lower the maximum wait time for shell command execution to 2 minutes and pass it as a timeout to the orchestrator context.

Author: phodal

mpp-core/build.gradle.kts

@@ -135,7 +135,7 @@ kotlin {
                 // Kotlin Logging for multiplatform logging
                 implementation("io.github.oshai:kotlin-logging:7.0.13")
 
-                runtimeOnly("org.jetbrains.kotlinx:kotlinx-datetime:0.7.1-0.6.x-compat")
+                implementation("org.jetbrains.kotlinx:kotlinx-datetime:0.7.1-0.6.x-compat")
                 // Koog AI Framework - JVM only for now
                 implementation("ai.koog:koog-agents:0.5.2")
                 implementation("ai.koog:agents-mcp:0.5.2")

mpp-core/src/commonMain/kotlin/cc/unitmesh/agent/CodingAgentTemplate.kt

@@ -36,15 +36,48 @@ All tools use the DevIns format with JSON parameters:
 ```
 </devin>
 
+# Planning and Task Management
+
+For complex multi-step tasks, use the `/plan` tool to create and track progress:
+
+## When to Use Planning
+- Tasks requiring multiple files to be created or modified
+- Tasks with dependencies between steps
+- Tasks that benefit from structured tracking
+
+## Plan Format
+```markdown
+1. Task Title
+   - [ ] Step 1 description
+   - [ ] Step 2 description
+
+2. Another Task
+   - [ ] Step description
+```
+
+## Plan Actions
+- `CREATE`: Create a new plan with markdown content
+- `COMPLETE_STEP`: Mark a step as done (taskIndex=1, stepIndex=1 for first step of first task)
+- `VIEW`: View current plan status
+
+Example:
+<devin>
+/plan
+```json
+{"action": "CREATE", "planMarkdown": "1. Setup\n   - [ ] Create entity class\n   - [ ] Create repository\n\n2. Implementation\n   - [ ] Create service\n   - [ ] Create controller"}
+```
+</devin>
+
 # Task Completion Strategy
 
 **IMPORTANT: Focus on completing the task efficiently.**
 
 1. **Understand the Task**: Read the user's request carefully
-2. **Gather Minimum Required Information**: Only collect information directly needed for the task
-3. **Execute the Task**: Make the necessary changes or provide the answer
-4. **Verify if Needed**: For code changes, compile/test to verify
-5. **Provide Summary**: Always end with a clear summary of what was done
+2. **Plan if Complex**: For multi-step tasks, create a plan first using `/plan`
+3. **Gather Minimum Required Information**: Only collect information directly needed for the task
+4. **Execute the Task**: Make the necessary changes, marking steps complete as you go
+5. **Verify if Needed**: For code changes, compile/test to verify
+6. **Provide Summary**: Always end with a clear summary of what was done
 
 **Avoid over-exploration**: Don't spend iterations exploring unrelated code. Stay focused on the task.
 
@@ -161,15 +194,48 @@ ${'$'}{toolList}
 ```
 </devin>
 
+# 计划和任务管理
+
+对于复杂的多步骤任务，使用 `/plan` 工具来创建和跟踪进度：
+
+## 何时使用计划
+- 需要创建或修改多个文件的任务
+- 步骤之间有依赖关系的任务
+- 需要结构化跟踪的任务
+
+## 计划格式
+```markdown
+1. 任务标题
+   - [ ] 步骤1描述
+   - [ ] 步骤2描述
+
+2. 另一个任务
+   - [ ] 步骤描述
+```
+
+## 计划操作
+- `CREATE`: 使用 markdown 内容创建新计划
+- `COMPLETE_STEP`: 标记步骤完成 (taskIndex=1, stepIndex=1 表示第一个任务的第一个步骤)
+- `VIEW`: 查看当前计划状态
+
+示例：
+<devin>
+/plan
+```json
+{"action": "CREATE", "planMarkdown": "1. 设置\n   - [ ] 创建实体类\n   - [ ] 创建仓库\n\n2. 实现\n   - [ ] 创建服务\n   - [ ] 创建控制器"}
+```
+</devin>
+
 # 任务完成策略
 
 **重要：专注于高效完成任务。**
 
 1. **理解任务**：仔细阅读用户的请求
-2. **收集最少必要信息**：只收集任务直接需要的信息
-3. **执行任务**：进行必要的更改或提供答案
-4. **必要时验证**：对于代码更改，编译/测试以验证
-5. **提供总结**：始终以清晰的总结结束
+2. **复杂任务先计划**：对于多步骤任务，先使用 `/plan` 创建计划
+3. **收集最少必要信息**：只收集任务直接需要的信息
+4. **执行任务**：进行必要的更改，完成后标记步骤
+5. **必要时验证**：对于代码更改，编译/测试以验证
+6. **提供总结**：始终以清晰的总结结束
 
 **避免过度探索**：不要花费迭代次数探索无关代码。保持专注于任务。
 

mpp-core/src/commonMain/kotlin/cc/unitmesh/agent/executor/CodingAgentExecutor.kt

@@ -24,8 +24,8 @@ import cc.unitmesh.agent.orchestrator.ToolExecutionContext as OrchestratorContex
 data class AsyncShellConfig(
     /** Initial wait timeout in milliseconds before notifying AI that process is still running */
     val initialWaitTimeoutMs: Long = 60_000L, // 1 minute
-    /** Maximum total wait time in milliseconds */
-    val maxWaitTimeoutMs: Long = 300_000L, // 5 minutes
+    /** Maximum total wait time in milliseconds (2 minutes, similar to Cursor/Claude Code) */
+    val maxWaitTimeoutMs: Long = 120_000L, // 2 minutes
     /** Interval for checking process status after initial timeout */
     val checkIntervalMs: Long = 30_000L // 30 seconds
 )
@@ -212,7 +212,8 @@ class CodingAgentExecutor(
 
             val executionContext = OrchestratorContext(
                 workingDirectory = projectPath,
-                environment = emptyMap()
+                environment = emptyMap(),
+                timeout = asyncShellConfig.maxWaitTimeoutMs  // Use max timeout for shell commands
             )
 
             var executionResult = toolOrchestrator.executeToolCall(

mpp-core/src/commonMain/kotlin/cc/unitmesh/agent/orchestrator/ToolOrchestrator.kt

@@ -382,7 +382,7 @@ class ToolOrchestrator(
                 else -> {
                     // Handle special tools that need parameter conversion
                     when (toolName.lowercase()) {
-                        "task-boundary" -> executeTaskBoundaryTool(tool, params, basicContext)
+                        "plan" -> executePlanManagementTool(tool, params, basicContext)
                         "docql" -> executeDocQLTool(tool, params, basicContext)
                         else -> {
                             // For truly generic tools, use generic execution
@@ -675,26 +675,37 @@ class ToolOrchestrator(
         return invocation.execute(context)
     }
 
-    private suspend fun executeTaskBoundaryTool(
+    private suspend fun executePlanManagementTool(
         tool: Tool,
         params: Map<String, Any>,
         context: cc.unitmesh.agent.tool.ToolExecutionContext
     ): ToolResult {
-        val taskBoundaryTool = tool as cc.unitmesh.agent.tool.impl.TaskBoundaryTool
-        
-        val taskName = params["taskName"] as? String
-            ?: return ToolResult.Error("taskName parameter is required")
-        val status = params["status"] as? String
-            ?: return ToolResult.Error("status parameter is required")
-        val summary = params["summary"] as? String ?: ""
-        
-        val taskBoundaryParams = cc.unitmesh.agent.tool.impl.TaskBoundaryParams(
-            taskName = taskName,
-            status = status,
-            summary = summary
+        val planTool = tool as cc.unitmesh.agent.tool.impl.PlanManagementTool
+
+        val action = params["action"] as? String
+            ?: return ToolResult.Error("action parameter is required")
+        val planMarkdown = params["planMarkdown"] as? String ?: ""
+
+        // Handle taskIndex and stepIndex - can be Number or String
+        val taskIndex = when (val v = params["taskIndex"]) {
+            is Number -> v.toInt()
+            is String -> v.toIntOrNull() ?: 0
+            else -> 0
+        }
+        val stepIndex = when (val v = params["stepIndex"]) {
+            is Number -> v.toInt()
+            is String -> v.toIntOrNull() ?: 0
+            else -> 0
+        }
+
+        val planParams = cc.unitmesh.agent.tool.impl.PlanManagementParams(
+            action = action,
+            planMarkdown = planMarkdown,
+            taskIndex = taskIndex,
+            stepIndex = stepIndex
         )
-        
-        val invocation = taskBoundaryTool.createInvocation(taskBoundaryParams)
+
+        val invocation = planTool.createInvocation(planParams)
         return invocation.execute(context)
     }
 
@@ -704,16 +715,16 @@ class ToolOrchestrator(
         context: cc.unitmesh.agent.tool.ToolExecutionContext
     ): ToolResult {
         val docqlTool = tool as cc.unitmesh.agent.tool.impl.DocQLTool
-        
+
         val query = params["query"] as? String
             ?: return ToolResult.Error("query parameter is required")
         val documentPath = params["documentPath"] as? String // Optional
-        
+
         val docqlParams = cc.unitmesh.agent.tool.impl.DocQLParams(
             query = query,
             documentPath = documentPath
         )
-        
+
         val invocation = docqlTool.createInvocation(docqlParams)
         return invocation.execute(context)
     }
@@ -738,7 +749,7 @@ class ToolOrchestrator(
 
     /**
      * Execute generic tool using ExecutableTool interface
-     * This handles new tools like task-boundary, ask-agent, etc. without needing specific implementations
+     * This handles new tools like ask-agent, etc. without needing specific implementations
      */
     private suspend fun executeGenericTool(
         tool: Tool,

mpp-core/src/commonMain/kotlin/cc/unitmesh/agent/plan/AgentPlan.kt

@@ -0,0 +1,140 @@
+package cc.unitmesh.agent.plan
+
+import kotlinx.datetime.Clock
+import kotlinx.serialization.Serializable
+
+/**
+ * Represents a complete agent plan containing multiple tasks.
+ * 
+ * An AgentPlan is the top-level container for organizing work
+ * into tasks and steps, with tracking for creation and update times.
+ */
+@Serializable
+data class AgentPlan(
+    /**
+     * Unique identifier for this plan
+     */
+    val id: String,
+    
+    /**
+     * Tasks in this plan
+     */
+    val tasks: MutableList<PlanTask> = mutableListOf(),
+    
+    /**
+     * Timestamp when this plan was created (epoch milliseconds)
+     */
+    val createdAt: Long = Clock.System.now().toEpochMilliseconds(),
+    
+    /**
+     * Timestamp when this plan was last updated (epoch milliseconds)
+     */
+    var updatedAt: Long = createdAt
+) {
+    /**
+     * Overall status of the plan (derived from tasks)
+     */
+    val status: TaskStatus
+        get() = when {
+            tasks.isEmpty() -> TaskStatus.TODO
+            tasks.all { it.status == TaskStatus.COMPLETED } -> TaskStatus.COMPLETED
+            tasks.any { it.status == TaskStatus.FAILED } -> TaskStatus.FAILED
+            tasks.any { it.status == TaskStatus.IN_PROGRESS } -> TaskStatus.IN_PROGRESS
+            tasks.any { it.status == TaskStatus.BLOCKED } -> TaskStatus.BLOCKED
+            else -> TaskStatus.TODO
+        }
+    
+    /**
+     * Overall progress percentage (0-100)
+     */
+    val progressPercent: Int
+        get() {
+            val totalSteps = tasks.sumOf { it.totalStepCount }
+            if (totalSteps == 0) return 0
+            val completedSteps = tasks.sumOf { it.completedStepCount }
+            return (completedSteps * 100) / totalSteps
+        }
+    
+    /**
+     * Total number of tasks
+     */
+    val taskCount: Int
+        get() = tasks.size
+    
+    /**
+     * Number of completed tasks
+     */
+    val completedTaskCount: Int
+        get() = tasks.count { it.isCompleted }
+    
+    /**
+     * Add a task to this plan
+     */
+    fun addTask(task: PlanTask) {
+        tasks.add(task)
+        touch()
+    }
+    
+    /**
+     * Get a task by ID
+     */
+    fun getTask(taskId: String): PlanTask? {
+        return tasks.find { it.id == taskId }
+    }
+    
+    /**
+     * Update a task's status
+     */
+    fun updateTaskStatus(taskId: String, status: TaskStatus) {
+        getTask(taskId)?.updateStatus(status)
+        touch()
+    }
+    
+    /**
+     * Complete a step within a task
+     */
+    fun completeStep(taskId: String, stepId: String) {
+        getTask(taskId)?.completeStep(stepId)
+        touch()
+    }
+    
+    /**
+     * Update the updatedAt timestamp
+     */
+    private fun touch() {
+        updatedAt = Clock.System.now().toEpochMilliseconds()
+    }
+    
+    /**
+     * Convert to markdown format
+     */
+    fun toMarkdown(): String {
+        val sb = StringBuilder()
+        tasks.forEachIndexed { index, task ->
+            sb.append(task.toMarkdown(index + 1))
+        }
+        return sb.toString()
+    }
+    
+    companion object {
+        private var idCounter = 0L
+        
+        /**
+         * Create a new plan with generated ID
+         */
+        fun create(tasks: List<PlanTask> = emptyList()): AgentPlan {
+            return AgentPlan(
+                id = generateId(),
+                tasks = tasks.toMutableList()
+            )
+        }
+        
+        /**
+         * Generate a unique plan ID
+         */
+        fun generateId(): String {
+            return "plan_${++idCounter}_${Clock.System.now().toEpochMilliseconds()}"
+        }
+    }
+}
+