feat(tools): add SpawnStatusTool for reporting subagent statuses (#1540)

* feat(tools): add SpawnStatusTool for reporting subagent statuses

* feat(tools): enhance SpawnStatusTool to restrict task visibility by conversation context

* feat(tests): add Unicode result truncation and channel filtering tests for SpawnStatusTool

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* feat(tools): enhance SpawnStatusTool with task ID validation and sorting by creation timestamp

* feat(tools): update SpawnStatusTool description and parameter documentation for clarity

* refactor(tests): improve comments for clarity in ChannelFiltering test case

* fix(tools): update no subagents message for clarity and remove unnecessary locking in runTask

* fix(tools): improve description clarity for SpawnStatusTool regarding task context

* feat(tools): add spawn_status tool configuration and registration

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* fix(agent): improve subagent management for spawn and spawn_status tools

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* fix(tests): update ResultTruncation_Unicode test to use valid CJK character

---------

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Co-authored-by: lxowalle <83055338+lxowalle@users.noreply.github.com>

pkg/config/config.go

@@ -751,6 +751,7 @@ type ToolsConfig struct {
 	ReadFile        ReadFileToolConfig `json:"read_file"                                                envPrefix:"PICOCLAW_TOOLS_READ_FILE_"`
 	SendFile        ToolConfig         `json:"send_file"                                                envPrefix:"PICOCLAW_TOOLS_SEND_FILE_"`
 	Spawn           ToolConfig         `json:"spawn"                                                    envPrefix:"PICOCLAW_TOOLS_SPAWN_"`
+	SpawnStatus     ToolConfig         `json:"spawn_status"                                             envPrefix:"PICOCLAW_TOOLS_SPAWN_STATUS_"`
 	SPI             ToolConfig         `json:"spi"                                                      envPrefix:"PICOCLAW_TOOLS_SPI_"`
 	Subagent        ToolConfig         `json:"subagent"                                                 envPrefix:"PICOCLAW_TOOLS_SUBAGENT_"`
 	WebFetch        ToolConfig         `json:"web_fetch"                                                envPrefix:"PICOCLAW_TOOLS_WEB_FETCH_"`
@@ -1112,6 +1113,8 @@ func (t *ToolsConfig) IsToolEnabled(name string) bool {
 		return t.ReadFile.Enabled
 	case "spawn":
 		return t.Spawn.Enabled
+	case "spawn_status":
+		return t.SpawnStatus.Enabled
 	case "spi":
 		return t.SPI.Enabled
 	case "subagent":

pkg/config/defaults.go

@@ -522,6 +522,9 @@ func DefaultConfig() *Config {
 			Spawn: ToolConfig{
 				Enabled: true,
 			},
+			SpawnStatus: ToolConfig{
+				Enabled: false,
+			},
 			SPI: ToolConfig{
 				Enabled: false, // Hardware tool - Linux only
 			},