1 files changed, 48 insertions, 0 deletions
diff --git a/spec/test_run.lua b/spec/test_run.lua
index e4bb038..57c6e47 100644
--- a/spec/test_run.lua
+++ b/spec/test_run.lua
@@ -10,6 +10,7 @@
 -- machine's real ~/.config out of the run.
 
 local fake = require("spec.fake_ext")
+local progress = require("subagents.progress")
 local run = require("subagents.run")
 local spawn = require("subagents.spawn")
 
@@ -123,6 +124,53 @@ return {
         end)
     end },
 
+    { "subagents.run presents its child prompt only when expanded", function()
+        with_host(function(handle, profiles)
+            handle.queue_for("reviewer", { events = {
+                { type = "block_start", block_type = "text", index = 0 },
+                { type = "content_delta", index = 0, delta = "checking auth\n" },
+                { type = "block_start", block_type = "tool_use", index = 1 },
+                { type = "tool_details", index = 1, id = "tool-1", name = "std__read" },
+                { type = "block_complete", block_type = "tool_use", index = 1,
+                    id = "tool-1", name = "std__read", text = '{"path":"auth.lua"}' },
+                { type = "tool_dispatch_result", tool_results = {
+                    { tool_use_id = "tool-1", output = "file contents", is_error = false },
+                } },
+            } })
+            progress.reset()
+            local component
+            progress.claim({
+                id = "run-call",
+                tool_name = "subagents.run",
+                collapsed = true,
+                set_component = function(_, value)
+                    component = value
+                    return {
+                        invalidate = function() end,
+                        alive = function() return true end,
+                        set_pinned = function() end,
+                    }
+                end,
+            })
+            progress.bind({ tool_call_id = "run-call" })
+
+            run.handle({ agent = "reviewer", prompt = "Review the auth change." }, profiles)
+            local compact = table.concat(component:render(100), "\n")
+            assert(not compact:find("Review the auth change.", 1, true), compact)
+
+            progress.collapse({ collapsed = false })
+            local expanded = table.concat(component:render(100), "\n")
+            has(expanded, "prompt: Review the auth change.")
+            has(expanded, "checking auth")
+            has(expanded, "std.read [tool-1]")
+            has(expanded, 'input: {"path":"auth.lua"}')
+            has(expanded, "result [tool-1]: file contents")
+            assert(not expanded:find("system prompt:", 1, true),
+                "a discovered profile system prompt is not presentation metadata:\n" .. expanded)
+            progress.reset()
+        end)
+    end },
+
     { "the primary's system context comes first, then the role, then the profile", function()
         with_host(function(handle, profiles)
             run.handle({ agent = "reviewer", prompt = "go" }, profiles)