Keep Herdr working until all activity finishesHEADmain

Track foreground turns and balanced background-work events independently so
Herdr only reports idle after the primary and every background task settle.

1 files changed, 43 insertions, 8 deletions

diff --git a/panto-herdr/init.lua b/panto-herdr/init.lua
index cc0b527..b3d30be 100644
--- a/panto-herdr/init.lua
+++ b/panto-herdr/init.lua
@@ -17,6 +17,9 @@ return {
       local seq = os.time() * 1000000
       local last_state
       local last_status
+      local foreground_working = false
+      local foreground_status
+      local background_work = 0
 
       local function spawn(args)
          local handle
@@ -57,16 +60,48 @@ return {
          })
       end
 
-      panto.ext.on("session_start", function() report("idle") end)
-      panto.ext.on("session_ready", function() report("idle") end)
-      panto.ext.on("user_message", function() report("working", "thinking") end)
-      panto.ext.on("thinking", function() report("working", "thinking") end)
-      panto.ext.on("compaction", function() report("working", "compacting") end)
+      local function update_idle_state()
+         if foreground_working or background_work > 0 then
+            report("working", foreground_working and foreground_status or "background")
+         else
+            report("idle")
+         end
+      end
+
+      local function foreground(status)
+         foreground_working, foreground_status = true, status
+         report("working", status)
+      end
+
+      panto.ext.on("session_start", function()
+         foreground_working, foreground_status, background_work = false, nil, 0
+         report("idle")
+      end)
+      panto.ext.on("session_ready", function()
+         foreground_working, foreground_status = false, nil
+         update_idle_state()
+      end)
+      panto.ext.on("turn_start", function() foreground("thinking") end)
+      panto.ext.on("agent_submission", function() foreground("thinking") end)
+      panto.ext.on("user_message", function() foreground("thinking") end)
+      panto.ext.on("thinking", function() foreground("thinking") end)
+      panto.ext.on("compaction", function() foreground("compacting") end)
       panto.ext.on("tool_details", function(event)
-         report("working", tool_status(event.tool_name))
+         foreground(tool_status(event.tool_name))
+      end)
+      panto.ext.on("assistant_text", function() foreground("responding") end)
+      panto.ext.on("turn_end", function()
+         foreground_working, foreground_status = false, nil
+         update_idle_state()
+      end)
+      panto.ext.on("background_work_start", function()
+         background_work = background_work + 1
+         update_idle_state()
+      end)
+      panto.ext.on("background_work_end", function()
+         background_work = math.max(0, background_work - 1)
+         update_idle_state()
       end)
-      panto.ext.on("assistant_text", function() report("working", "responding") end)
-      panto.ext.on("assistant_text_complete", function() report("idle") end)
       panto.ext.on("session_end", release)
    end,
 }