Feature Request: Stream Web Search Workflow Events Alongside Reasoning #28

Problem

stream_agent_response already emits workflow updates for reasoning summaries, allowing clients to display the model’s thought process as it unfolds.

However, when the agent invokes the web_search tool, no workflow events are produced. This results in:

• Reasoning steps progressively appearing ✅
• No information about web search tool being called

Users could perceive this as a freeze or unexplained pause.

Requested Enhancement

Treat web_search_call items as first-class workflow tasks.

As search calls begin and progress, emit:

• WorkflowTaskAdded when a search starts
• WorkflowTaskUpdated as the status evolves (loading → complete)
• Include metadata such as:
  • Active query or URL
  • Current status indicator
  • Discovered or referenced URLs

Why It Matters

• Consistent streaming UX — Reasoning steps and search steps should appear in the same timeline.
• User clarity — When the assistant pauses, users should see “Searching for X…” instead of guessing.
• Immediate access to search metadata — Clients can render queries and links without waiting for final content.