feat(subagents): complete queue, budgets, audit, and inspection controls

README.md

@@ -618,6 +618,7 @@ Notes:
 | `/deny [id] [reason]` | Deny latest (or specific) pending gate |
 | `/skill <list|search|install>` | In-chat skill discovery/install (`list`, `search <term>`, `install <registry-id>`) |
 | `/runtime <status\|activate pi\|deactivate pi\|use config>` | Show or control global runtime backend mode (`/backend ...` alias also supported) |
+| `/subagents [list\|summary <id> [limit]\|cancel <id>\|delete <id>]` | Inspect and control spawned subagent sessions |
 
 ## Web UI Dashboard
 
@@ -661,6 +662,7 @@ pnpm tui:fs
 | `/tools` | Show authoritative runtime tool list for this session |
 | `/research <task>` | Delegate a task to `agent_configs.research` |
 | `/council <task>` | Run dual D/P councils pipeline with bridge+meta merge (brief in TUI, full artifacts saved to disk) |
+| `/subagents [list\|summary <id> [limit]\|cancel <id>\|delete <id>]` | Inspect and control spawned subagent sessions |
 | `/compact` | Compact conversation context |
 | `/usage` | Show token usage and cost |
 | `/context` | Show estimated context-window usage |
@@ -806,6 +808,13 @@ Available tools:
 - `subagent.delete` — remove a child session and clear its history
 - `subagent.summary` — inspect transcript summary for a child session
 
+Session controls:
+
+- Queue modes: `followup` (FIFO) or `interrupt` (latest-wins cancellation + supersede).
+- Budget guardrails: max turns, max total tokens, and per-turn timeout.
+- Tool profile override per subagent spawn (`minimal|messaging|coding|full`).
+- Runtime inspection command: `/subagents [list|summary <id> [limit]|cancel <id>|delete <id>]`.
+
 Example flow:
 
 ```json
@@ -823,6 +832,11 @@ agents:
     enabled: true
     max_active_sessions: 6
     idle_ttl_ms: 3600000
+    queue_mode: followup
+    default_tool_profile: minimal
+    max_turns: 40
+    max_total_tokens: 200000
+    turn_timeout_ms: 120000
 ```
 
 ## Running as Service