Self-review against the actual source surfaced three imprecisions:
- agent-loop placement: the core bundle forwards agent-loop's `agents`
list as its own config (default []), matching AgentLoop.Config, rather
than hardcoding []. This is what lets a shared core coexist with stdio
pre-creating `main` and acp pre-creating none — and it directly rebuts
the reason base-core.yml gives today for keeping the loop out of core.
- timer is universal and stdout-safe, so it lives in the shared spine,
not the per-app front-door cluster (only logger + hmr are app-specific).
- model/systemPrompt land in different places per app (stdio onto the
pre-created agent, acp onto the bridge plugin), routed by the app
package's own Config — not a single uniform bundle entry.
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