diff --git a/AGENTS.md b/AGENTS.md
index 6b006e4..a67dea3 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -502,7 +502,10 @@ sections/0N-<name>/  # one .md per BOOK (chapter-level list items are merged int
 ## Lessons from sec05 (2026-09-22) — what made the 7 rescues possible / what to do next time
 
 1. **User oracle table = highest-ROI step.** Initial ❌ list (19) was 37% wrong; user checked the
-   RU-title-guess table against OZON/labirint memory and rescued 7. **Convention: at section end,
+   RU-title-guess table against OZON/labirint memory and rescued 7. **Sec09 подтверждение (2026-09-27):
+   user дал прямые URL-ы (OZON + free-PDF-зеркала lib.uni-dubna.ru / solivint.ru) = 3/11 rescues (27%).
+   Free-PDF-зеркала (university library sites, solivint, psyliterature.narod.ru) = недооценённый
+   download-канал для старых RU-изданий.** **Convention: at section end,
    present the ❌ table (author, EN title, guessed RU author/title, channels probed) to the user**
    before finalizing MISSING.md.
 2. **RU titles are NOT calques** — the actual titles found: «Очерки сравнительного РЕЛИГИОВЕДЕНИЯ»