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name: Agent panel expand triangle does nothing without running agent
---

# Bug 2: Agent Panel Expand Triangle Does Nothing

## Symptom

Clicking the expand triangle (▶) next to a story in the Agent panel does nothing visible. No detail panel opens, no console output.

## Root Cause

The expand handler sets `expandedKey` to `storyAgentEntries[0]?.[0] ?? story.story_id`. If no agents have been started for the story, `storyAgentEntries` is empty, so `expandedKey` gets set to `story.story_id`. But the detail section only renders entries from `storyAgentEntries.map(...)`, which is empty — so nothing renders even though `expandedKey` is set.

## Reproduction Steps

1. Start the server and open the web UI
2. Ensure there are upcoming stories visible in the Agent panel
3. Click the ▶ triangle next to any story (without starting an agent first)
4. Observe: nothing happens

## Proposed Fix

Either disable the expand triangle when no agents exist for the story, or show a "No agent running" message in the detail panel when expanded without agents.
