feat(tools): add SpawnStatusTool for reporting subagent statuses

This commit is contained in:
SHINE-six 2026-03-14 16:45:15 +08:00
parent 0c5d7500e8
commit e60b456f18
3 changed files with 365 additions and 0 deletions

View file

@ -233,6 +233,7 @@ func registerSharedTools(
return registry.CanSpawnSubagent(currentAgentID, targetAgentID)
})
agent.Tools.Register(spawnTool)
agent.Tools.Register(tools.NewSpawnStatusTool(subagentManager))
} else {
logger.WarnCF("agent", "spawn tool requires subagent to be enabled", nil)
}

127
pkg/tools/spawn_status.go Normal file
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@ -0,0 +1,127 @@
package tools
import (
"context"
"fmt"
"sort"
"strings"
"time"
)
// SpawnStatusTool reports the status of subagents that were spawned via the
// spawn tool. It can query a specific task by ID, or list every known task with
// a summary count broken-down by status.
type SpawnStatusTool struct {
manager *SubagentManager
}
// NewSpawnStatusTool creates a SpawnStatusTool backed by the given manager.
func NewSpawnStatusTool(manager *SubagentManager) *SpawnStatusTool {
return &SpawnStatusTool{manager: manager}
}
func (t *SpawnStatusTool) Name() string {
return "spawn_status"
}
func (t *SpawnStatusTool) Description() string {
return "Get the status of spawned subagents. " +
"Returns a list of all subagents and their current state " +
"(running, completed, failed, or canceled), or retrieves details " +
"for a specific subagent task when task_id is provided."
}
func (t *SpawnStatusTool) Parameters() map[string]any {
return map[string]any{
"type": "object",
"properties": map[string]any{
"task_id": map[string]any{
"type": "string",
"description": "Optional task ID (e.g. \"subagent-1\") to inspect a specific " +
"subagent. When omitted, all known subagents are listed.",
},
},
"required": []string{},
}
}
func (t *SpawnStatusTool) Execute(ctx context.Context, args map[string]any) *ToolResult {
if t.manager == nil {
return ErrorResult("Subagent manager not configured")
}
taskID, _ := args["task_id"].(string)
taskID = strings.TrimSpace(taskID)
if taskID != "" {
task, ok := t.manager.GetTask(taskID)
if !ok {
return ErrorResult(fmt.Sprintf("No subagent found with task ID: %s", taskID))
}
return NewToolResult(spawnStatusFormatTask(task))
}
tasks := t.manager.ListTasks()
if len(tasks) == 0 {
return NewToolResult("No subagents have been spawned yet.")
}
// Deterministic ordering: sort by ID string (e.g. "subagent-1" < "subagent-2").
sort.Slice(tasks, func(i, j int) bool {
return tasks[i].ID < tasks[j].ID
})
counts := map[string]int{}
for _, task := range tasks {
counts[task.Status]++
}
var sb strings.Builder
sb.WriteString(fmt.Sprintf("Subagent status report (%d total):\n", len(tasks)))
for _, status := range []string{"running", "completed", "failed", "canceled"} {
if n := counts[status]; n > 0 {
label := strings.ToUpper(status[:1]) + status[1:] + ":"
sb.WriteString(fmt.Sprintf(" %-10s %d\n", label, n))
}
}
sb.WriteString("\n")
for _, task := range tasks {
sb.WriteString(spawnStatusFormatTask(task))
sb.WriteString("\n\n")
}
return NewToolResult(strings.TrimRight(sb.String(), "\n"))
}
// spawnStatusFormatTask renders a single SubagentTask as a human-readable block.
func spawnStatusFormatTask(task *SubagentTask) string {
var sb strings.Builder
header := fmt.Sprintf("[%s] status=%s", task.ID, task.Status)
if task.Label != "" {
header += fmt.Sprintf(" label=%q", task.Label)
}
if task.AgentID != "" {
header += fmt.Sprintf(" agent=%s", task.AgentID)
}
if task.Created > 0 {
created := time.UnixMilli(task.Created).UTC().Format("2006-01-02 15:04:05 UTC")
header += fmt.Sprintf(" created=%s", created)
}
sb.WriteString(header)
if task.Task != "" {
sb.WriteString(fmt.Sprintf("\n task: %s", task.Task))
}
if task.Result != "" {
result := task.Result
const maxResultLen = 300
if len(result) > maxResultLen {
result = result[:maxResultLen] + "…"
}
sb.WriteString(fmt.Sprintf("\n result: %s", result))
}
return sb.String()
}

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@ -0,0 +1,237 @@
package tools
import (
"context"
"fmt"
"strings"
"testing"
"time"
)
func TestSpawnStatusTool_Name(t *testing.T) {
provider := &MockLLMProvider{}
manager := NewSubagentManager(provider, "test-model", "/tmp/test")
tool := NewSpawnStatusTool(manager)
if tool.Name() != "spawn_status" {
t.Errorf("Expected name 'spawn_status', got '%s'", tool.Name())
}
}
func TestSpawnStatusTool_Description(t *testing.T) {
provider := &MockLLMProvider{}
manager := NewSubagentManager(provider, "test-model", "/tmp/test")
tool := NewSpawnStatusTool(manager)
desc := tool.Description()
if desc == "" {
t.Error("Description should not be empty")
}
if !strings.Contains(strings.ToLower(desc), "subagent") {
t.Errorf("Description should mention 'subagent', got: %s", desc)
}
}
func TestSpawnStatusTool_Parameters(t *testing.T) {
provider := &MockLLMProvider{}
manager := NewSubagentManager(provider, "test-model", "/tmp/test")
tool := NewSpawnStatusTool(manager)
params := tool.Parameters()
if params["type"] != "object" {
t.Errorf("Expected type 'object', got: %v", params["type"])
}
props, ok := params["properties"].(map[string]any)
if !ok {
t.Fatal("Expected 'properties' to be a map")
}
if _, hasTaskID := props["task_id"]; !hasTaskID {
t.Error("Expected 'task_id' parameter in properties")
}
}
func TestSpawnStatusTool_NilManager(t *testing.T) {
tool := &SpawnStatusTool{manager: nil}
result := tool.Execute(context.Background(), map[string]any{})
if !result.IsError {
t.Error("Expected error result when manager is nil")
}
}
func TestSpawnStatusTool_Empty(t *testing.T) {
provider := &MockLLMProvider{}
manager := NewSubagentManager(provider, "test-model", "/tmp/test")
tool := NewSpawnStatusTool(manager)
result := tool.Execute(context.Background(), map[string]any{})
if result.IsError {
t.Fatalf("Expected success, got error: %s", result.ForLLM)
}
if !strings.Contains(result.ForLLM, "No subagents") {
t.Errorf("Expected 'No subagents' message, got: %s", result.ForLLM)
}
}
func TestSpawnStatusTool_ListAll(t *testing.T) {
provider := &MockLLMProvider{}
manager := NewSubagentManager(provider, "test-model", "/tmp/test")
now := time.Now().UnixMilli()
manager.mu.Lock()
manager.tasks["subagent-1"] = &SubagentTask{
ID: "subagent-1",
Task: "Do task A",
Label: "task-a",
Status: "running",
Created: now,
}
manager.tasks["subagent-2"] = &SubagentTask{
ID: "subagent-2",
Task: "Do task B",
Label: "task-b",
Status: "completed",
Result: "Done successfully",
Created: now,
}
manager.tasks["subagent-3"] = &SubagentTask{
ID: "subagent-3",
Task: "Do task C",
Status: "failed",
Result: "Error: something went wrong",
}
manager.mu.Unlock()
tool := NewSpawnStatusTool(manager)
result := tool.Execute(context.Background(), map[string]any{})
if result.IsError {
t.Fatalf("Expected success, got error: %s", result.ForLLM)
}
// Summary header
if !strings.Contains(result.ForLLM, "3 total") {
t.Errorf("Expected total count in header, got: %s", result.ForLLM)
}
// Individual task IDs
for _, id := range []string{"subagent-1", "subagent-2", "subagent-3"} {
if !strings.Contains(result.ForLLM, id) {
t.Errorf("Expected task %s in output, got:\n%s", id, result.ForLLM)
}
}
// Status values
for _, status := range []string{"running", "completed", "failed"} {
if !strings.Contains(result.ForLLM, status) {
t.Errorf("Expected status '%s' in output, got:\n%s", status, result.ForLLM)
}
}
// Result content
if !strings.Contains(result.ForLLM, "Done successfully") {
t.Errorf("Expected result text in output, got:\n%s", result.ForLLM)
}
}
func TestSpawnStatusTool_GetByID(t *testing.T) {
provider := &MockLLMProvider{}
manager := NewSubagentManager(provider, "test-model", "/tmp/test")
manager.mu.Lock()
manager.tasks["subagent-42"] = &SubagentTask{
ID: "subagent-42",
Task: "Specific task",
Label: "my-task",
Status: "failed",
Result: "Something went wrong",
Created: time.Now().UnixMilli(),
}
manager.mu.Unlock()
tool := NewSpawnStatusTool(manager)
result := tool.Execute(context.Background(), map[string]any{"task_id": "subagent-42"})
if result.IsError {
t.Fatalf("Expected success, got error: %s", result.ForLLM)
}
if !strings.Contains(result.ForLLM, "subagent-42") {
t.Errorf("Expected task ID in output, got: %s", result.ForLLM)
}
if !strings.Contains(result.ForLLM, "failed") {
t.Errorf("Expected status 'failed' in output, got: %s", result.ForLLM)
}
if !strings.Contains(result.ForLLM, "Something went wrong") {
t.Errorf("Expected result text in output, got: %s", result.ForLLM)
}
if !strings.Contains(result.ForLLM, "my-task") {
t.Errorf("Expected label in output, got: %s", result.ForLLM)
}
}
func TestSpawnStatusTool_GetByID_NotFound(t *testing.T) {
provider := &MockLLMProvider{}
manager := NewSubagentManager(provider, "test-model", "/tmp/test")
tool := NewSpawnStatusTool(manager)
result := tool.Execute(context.Background(), map[string]any{"task_id": "nonexistent-999"})
if !result.IsError {
t.Errorf("Expected error for nonexistent task, got: %s", result.ForLLM)
}
if !strings.Contains(result.ForLLM, "nonexistent-999") {
t.Errorf("Expected task ID in error message, got: %s", result.ForLLM)
}
}
func TestSpawnStatusTool_ResultTruncation(t *testing.T) {
provider := &MockLLMProvider{}
manager := NewSubagentManager(provider, "test-model", "/tmp/test")
longResult := strings.Repeat("X", 500)
manager.mu.Lock()
manager.tasks["subagent-1"] = &SubagentTask{
ID: "subagent-1",
Task: "Long task",
Status: "completed",
Result: longResult,
}
manager.mu.Unlock()
tool := NewSpawnStatusTool(manager)
result := tool.Execute(context.Background(), map[string]any{"task_id": "subagent-1"})
if result.IsError {
t.Fatalf("Unexpected error: %s", result.ForLLM)
}
// Output should be shorter than the raw result due to truncation
if len(result.ForLLM) >= len(longResult) {
t.Errorf("Expected result to be truncated, but ForLLM is %d chars", len(result.ForLLM))
}
if !strings.Contains(result.ForLLM, "…") {
t.Errorf("Expected truncation indicator '…' in output, got: %s", result.ForLLM)
}
}
func TestSpawnStatusTool_StatusCounts(t *testing.T) {
provider := &MockLLMProvider{}
manager := NewSubagentManager(provider, "test-model", "/tmp/test")
manager.mu.Lock()
for i, status := range []string{"running", "running", "completed", "failed", "canceled"} {
id := fmt.Sprintf("subagent-%d", i+1)
manager.tasks[id] = &SubagentTask{ID: id, Task: "t", Status: status}
}
manager.mu.Unlock()
tool := NewSpawnStatusTool(manager)
result := tool.Execute(context.Background(), map[string]any{})
if result.IsError {
t.Fatalf("Unexpected error: %s", result.ForLLM)
}
// The summary line should mention all statuses that have counts
for _, want := range []string{"Running:", "Completed:", "Failed:", "Canceled:"} {
if !strings.Contains(result.ForLLM, want) {
t.Errorf("Expected %q in summary, got:\n%s", want, result.ForLLM)
}
}
}