# Architecture Deepening Backlog

Candidates surfaced by `/improve-codebase-architecture` on 2026-05-09. Each is independent.

Item #1 (feed pipeline) is being actively designed in conversation — see commits / PRD when one lands.

| #   | Issue                                                                                                       | Status          |
| --- | ----------------------------------------------------------------------------------------------------------- | --------------- |
| 01  | [Replace structural reducer with semantic SessionUiController](issues/01-session-ui-controller.md)          | ready-for-human |
| 02  | [Add internal seams to gateway relay coordinator](issues/02-relay-coordinator-internal-seams.md)            | ready-for-human |
| 03  | [Collapse claude harness 8 subdirs into 3 deep internal modules](issues/03-claude-harness-three-modules.md) | ready-for-human |
| 04  | [Delete one-call-site relay adapter shim](issues/04-delete-relay-adapter.md)                                | ready-for-human |
| 05  | [Move pure derivations out of `src/ui/hooks/`](issues/05-pure-hook-cleanup.md)                              | ready-for-human |

Vocabulary: see `.claude/skills/improve-codebase-architecture/LANGUAGE.md`.
