diff --git a/.yoi/tickets/00001KVSEBF56/item.md b/.yoi/tickets/00001KVSEBF56/item.md
index be87f3ed..3368fc3d 100644
--- a/.yoi/tickets/00001KVSEBF56/item.md
+++ b/.yoi/tickets/00001KVSEBF56/item.md
@@ -2,7 +2,7 @@
 title: 'Generate Workspace web TypeScript types from protocol crate'
 state: 'inprogress'
 created_at: '2026-06-23T05:13:22Z'
-updated_at: '2026-06-23T05:41:25Z'
+updated_at: '2026-06-23T05:42:14Z'
 assignee: null
 queued_by: 'workspace-panel'
 queued_at: '2026-06-23T05:40:01Z'
diff --git a/.yoi/tickets/00001KVSEBF56/thread.md b/.yoi/tickets/00001KVSEBF56/thread.md
index 7efc7a18..46104735 100644
--- a/.yoi/tickets/00001KVSEBF56/thread.md
+++ b/.yoi/tickets/00001KVSEBF56/thread.md
@@ -101,3 +101,28 @@ Validation plan:
 Human authorized queue routing from Workspace Dashboard. Ticket has concrete acceptance criteria and no recorded blockers, so Orchestrator accepts implementation.
 
 ---
+
+<!-- event: implementation_report author: yoi-orchestrator at: 2026-06-23T05:42:14Z -->
+
+## Implementation report
+
+Implementation start report:
+
+- Created child implementation worktree:
+  - `/home/hare/Projects/yoi/.worktree/00001KVSEBF56-protocol-typescript-types`
+- Created branch:
+  - `impl/00001KVSEBF56-protocol-typescript-types`
+- Base commit:
+  - `746c51c7 ticket: accept protocol ts generation`
+- Confirmed tracked Ticket project records are visible in the child worktree。
+- Confirmed `.yoi/memory` has no tracked/untracked entries in the child worktree check。
+- Spawned sibling Coder Pod:
+  - `yoi-coder-00001KVSEBF56`
+- Coder scope:
+  - read: `/home/hare/Projects/yoi`
+  - write: `/home/hare/Projects/yoi/.worktree/00001KVSEBF56-protocol-typescript-types`
+
+Next action:
+- Wait for Coder implementation report, then spawn Reviewer read-only for the implementation diff。
+
+---