diff --git a/development/completion-evidence.md b/development/completion-evidence.md
index 753e482..a02a43e 100644
--- a/development/completion-evidence.md
+++ b/development/completion-evidence.md
@@ -7,6 +7,58 @@ delivery commits, точные verification commands с наблюдёнными
 итог independent read-only review. Записи добавляются после archive и являются
 неизменяемой историей поставки.
 
+## 2026-09-01-harden-tbank-connection-cache-boundary
+
+**Change:** harden-tbank-connection-cache-boundary (schema `wealth-ledger-sdd`)
+**Archive path:** `specs/openspec/changes/archive/2026-09-01-harden-tbank-connection-cache-boundary`
+**Specs sync:** Requirement `Frontend сохраняет когерентность кэша T-Bank
+connection` обновлён в main spec `frontend-query-coherence`; post-archive strict
+validation подтвердил `23 passed, 0 failed`.
+
+### Delivery Map
+
+| Area | Status | Outcome |
+| --- | --- | --- |
+| frontend | affected | Successful T-Bank connection mutation коммитит status и сбрасывает весь generated brokerage query subtree без reuse предыдущей connection boundary. |
+| backend | affected | Portfolio, Account Ledger и производные Income caches допускают hit, fallback и late completion reuse только внутри opaque generation текущей persisted connection. |
+| specs | affected | Approved change заархивирован, а пересмотренный Requirement синхронизирован в canonical main specs. |
+| docs | affected | As-built connection, Portfolio, Account Ledger и domain glossary описывают generation isolation, frontend reset, current-generation snapshot и отдельный logout cleanup. |
+
+### Delivery commits
+
+| Repo | Commit | Subject |
+| --- | --- | --- |
+| frontend | `175727bc93876f950280d0ad35515a6d4acffbaf` | fix(tbank): reset connection-derived query cache |
+| backend | `19fe7e75d59792e9c6d6b702ab192fa2d5ccc936` | fix(tbank): isolate caches by connection generation |
+| specs (archive/sync) | `0386b6b26fa06014182736d1773eb2e48c0293dc` | docs(specs): archive T-Bank cache boundary change |
+| docs (as-built) | `3d2bc1eac4add7cc3316c97d4d02a78fe91620d5` | docs: document T-Bank cache generation boundary |
+| docs (evidence) | current evidence commit | docs: record T-Bank cache boundary evidence |
+
+### Verification
+
+| Command (repo) | Наблюдённый результат |
+| --- | --- |
+| `npm run verify` (frontend, Node 22, pre-archive) | pass; strict TypeScript, Biome, 22 Vitest files / 91 tests, Knip, dependency-cruiser и production build. |
+| `npm run verify` (backend, Node 22, pre-archive) | pass; lint, application/test typecheck, 25 Jest suites / 99 tests и build. |
+| `npm run verify` (docs, Node 22, pre-archive) | pass; 39 Markdown files, 0 issues, `git diff --check` clean. |
+| `openspec validate harden-tbank-connection-cache-boundary --type change --strict --store wealth-ledger-specs` (specs, Node 22, pre-archive) | pass; completed change valid. |
+| `openspec archive harden-tbank-connection-cache-boundary --yes --store wealth-ledger-specs` (specs, Node 22) | pass; all Tasks complete, `frontend-query-coherence` synced, change archived as `2026-09-01-harden-tbank-connection-cache-boundary`. |
+| `openspec validate --specs --strict --store wealth-ledger-specs` (specs, Node 22, post-archive) | pass; `23 passed, 0 failed`. |
+
+Все Tasks были завершены до archive. Semantic verification подтвердила
+successful create/replace/delete как общую frontend/backend cache boundary:
+status коммитится сразу, cached и late completions предыдущей generation не
+обслуживают новый consumer, failed mutation и current-generation background
+snapshot сохраняются, а logout независимо очищает session cache. Storage schema,
+endpoints и OpenAPI contract не изменились.
+
+### Independent read-only review
+
+Verdict: **PASS**. Critical findings — `0`, Important findings — `0`.
+Validation No. 1 подтвердила Requirement, Design и Tasks на итоговом
+frontend/backend/docs scope без blocking implementation или specification
+findings.
+
 ## 2026-08-28-portfolio-income-analytics
 
 **Change:** portfolio-income-analytics (schema `wealth-ledger-sdd`)