diff --git a/docs/implementation.md b/docs/implementation.md
index 60290af..1b3dafe 100644
--- a/docs/implementation.md
+++ b/docs/implementation.md
@@ -152,6 +152,18 @@ skill location and contribution workflow. Local links and diff checks pass;
 commands and prerequisites were checked against repository configuration.
 Documentation only; no runtime tests were run.
 
+## Exchange workspace UX plan — task #24
+
+- Plan-only scope confirmed by the user; no application code changed.
+- [Exchange workspace plan](ux/exchange-workspace.md) defines accounts, top-up,
+  exchange, payout, Activity, Limits and Settings; account-owned language replaces
+  repeated page selectors in the proposed interface.
+- Includes authoritative quotes/status/limits, idempotent recovery, account-profile
+  language persistence, accessible/responsive behavior and semantic funnel metrics.
+- Standalone documentation branch `exchange-shell-24` from main. Future interface
+  implementation should incorporate KYC PR #21 and usage PR #23.
+- Validation: documentation links and diff checks; no runtime changes or tests.
+- Delivery: [PR #25](https://git.sendico.io/tech/sxchnge/pulls/25), committed and pushed; not merged.
 ## Optional identity verification and backend-owned limits — task #20
 
 - Branch: `kyc-20`, based on `61ccfc1` (main after README PR #19).