Document current coding-workflow stack state

Snapshot of where opencode + Qwen3-Coder + MCPs + Kimi-Linear + voice
  + Phoenix tracing land today, plus in-flight (oc-tree, kimi-linear
  context ramp) and next (ComfyUI) items with pointers to per-project
  NEXT_STEPS.md guides.

Roadmap.md

@@ -169,6 +169,38 @@ Already wired in `localgenai/opencode/`:
 - **[mcp-server-fetch](https://github.com/modelcontextprotocol/servers/tree/main/src/fetch)** —
   not yet wired; useful if Playwright feels heavy for plain page reads.
 
+**Next: cited-search variant.** Fork `mcp-searxng` (or wrap it) to expose
+a `search_cited` tool that auto-fetches the top 3-5 results, extracts
+readable text via mozilla/readability or trafilatura, and returns
+numbered `[n] URL\n<excerpt>` blocks with a tool description telling the
+model to cite as `[n]`. Closes the citation-quality gap with
+[opencode-websearch-cited](https://github.com/ghoulr/opencode-websearch-cited)
+(which delegates to Gemini/OpenAI/OpenRouter) while staying fully local.
+Tradeoff: 3-5 HTTP fetches per query → slower; needs timeout + graceful
+skip for sites that block scrapers.
+
+### Observability — partial
+
+- **[Arize Phoenix](https://github.com/Arize-ai/phoenix)** wired via
+  `opencode/.opencode/plugin/phoenix-bridge.js`: OpenCode's experimental
+  OTel spans go to Phoenix at `framework:6006` with the OpenInference
+  span processor for LLM/tool-aware attributes. Subagents nest under the
+  parent session as a unified trace tree. **External** trace viewing is
+  solved.
+- **Gap: in-harness visibility.** OpenCode's TUI has no sidebar plugin
+  API ([sst/opencode#5971](https://github.com/sst/opencode/issues/5971),
+  open) and no built-in tree/timeline view. Plugins can only show
+  toasts. While driving the agent, there's no live "what's it doing
+  right now" pane — you have to alt-tab to Phoenix.
+- **Next: SSE sidecar.** `opencode serve` exposes documented SSE streams
+  at `/global/event` and `/session/{id}/event` carrying every tool call,
+  message part, and child-session creation. A small TUI sidecar
+  (Bubbletea/textual, ~200 lines) running in a tmux pane next to
+  opencode can subscribe and render a live tree:
+  `session → tool call → child session → tool call`. Subagents *are*
+  child sessions in the data model, so the hierarchy comes for free.
+  Phoenix stays the deep-trace store; sidecar is the live pane.
+
 ### Persistent memory
 
 OpenCode's memory is per-session unless you wire MCP for it.
@@ -242,6 +274,13 @@ In rough order of impact-per-hour-spent:
     OpenCode's per-task UX feels too hands-on.
 11. **OpenWebUI for household-shared chat access.** Adds value for
     non-coding LLM use, fills a small gap in the multi-user story.
+12. **SSE sidecar for in-harness visibility.** Live tree pane subscribed
+    to opencode's `/session/{id}/event` SSE; closes the "what's it
+    doing right now" gap that Phoenix doesn't fill (Phoenix is for
+    after-the-fact deep traces, not glanceable status).
+13. **Cited-search MCP.** Fork `mcp-searxng` to add `search_cited` with
+    auto-fetch + readability extraction. Smaller-impact than the
+    sidecar but cheap and keeps everything local.
 
 ## Reference catalogs to monitor