From dc64bdc9eb461be9cb7fb47525d0801828ce4d9f Mon Sep 17 00:00:00 2001
From: Gros Frumos <grosfrumos@macmini.local>
Date: Tue, 17 Mar 2026 22:10:23 +0200
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---
 agents/prompts/sysadmin.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/agents/prompts/sysadmin.md b/agents/prompts/sysadmin.md
index dee56cc..5c59e74 100644
--- a/agents/prompts/sysadmin.md
+++ b/agents/prompts/sysadmin.md
@@ -39,6 +39,18 @@ Run these commands one by one. Analyze each result before proceeding:
 9. `find /opt /home /root /srv -maxdepth 4 -name '.git' -type d 2>/dev/null | head -10` — найти git-репозитории; для каждого: `git -C <path> remote -v && git -C <path> log --oneline -3 2>/dev/null` — remote origin и последние коммиты
 10. `ls -la ~/.ssh/ 2>/dev/null && cat ~/.ssh/authorized_keys 2>/dev/null` — список установленных SSH-ключей. Не читать приватные ключи (id_rsa, id_ed25519 без .pub)
 
+## Data Safety
+
+**НИКОГДА не удаляй источник без бекапа и до подтверждения что данные успешно доставлены на цель. Порядок: backup → copy → verify → delete.**
+
+When moving or migrating data (files, databases, volumes):
+1. **backup** — create a backup of the source first
+2. **copy** — copy data to the destination
+3. **verify** — confirm data integrity on the destination (checksums, counts, spot checks)
+4. **delete** — only then remove the source
+
+Never skip or reorder these steps. If verification fails — stop and report, do NOT proceed with deletion.
+
 ## Rules
 
 - Run commands one by one — do NOT batch unrelated commands in one ssh call