diff --git a/docs/sessions/2026-07-28.md b/docs/sessions/2026-07-28.md
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+# Session log 2026-07-28
+
+## Session 21:59
+
+### Commits
+```
+905ad96 docs(architecture): plan naprawy subsystemu A (control-plane) 2026-07-28
+e8aa3e3 docs(architecture): recon multiagent 2026-07-27
+```
+
+### Files changed
+```
+ docs/architecture/PLAN-subsystem-a-2026-07-28.md |  60 +++
+ docs/architecture/RECON-multiagent-2026-07-27.md | 551 +++++++++++++++++++++++
+ 2 files changed, 611 insertions(+)
+```
+
+### Deploys
+None recorded
+
+### Narrative
+> _user-provided summary_