Simplify Athena operator maintenance workflow

platform/hermes/config.yaml

@@ -39,7 +39,7 @@ web:
   keyless_rescue: true
 
 agent:
-  max_turns: 100
+  max_turns: 500
   gateway_timeout: 3600
   session_stall_timeout: 600
   tool_loop_guardrails:
@@ -57,6 +57,27 @@ agent:
       max_web_searches: 20
       max_subagents: 8
 
+# Compact before a tool-heavy session can grow beyond the selected model's
+# usable window. Large old tool results are pruned without an LLM call first;
+# lean tail retention avoids several expensive back-to-back summary passes.
+compression:
+  enabled: true
+  progress_notices: true
+  threshold: 0.65
+  target_ratio: 0.15
+  tail_mode: "lean"
+  protect_last_n: 20
+  proactive_prune_tokens: 50000
+  proactive_prune_min_result_chars: 4000
+  proactive_prune_min_reclaim_tokens: 4096
+  context_total_ceiling_seconds: 600
+
+auxiliary:
+  compression:
+    provider: "main"
+    model: ""
+    reasoning_effort: "none"
+
 # German is the platform default. The display setting localizes the static
 # messages Hermes currently supports; agent replies are governed by SOUL.md.
 display: