Replace compression sidecar with Hermes micro-compaction

platform/hermes/config.yaml

@@ -82,6 +82,12 @@ agent:
 # large conversation to a tiny summary.
 compression:
   enabled: true
+  # Fold one older assistant/tool exchange into the rolling summary every five
+  # completed turns. The selected 27B profile remains the summarizer; there is
+  # no separate low-fidelity compression model.
+  micro_compact: true
+  micro_compact_every_n_turns: 5
+  micro_compact_defrag_threshold_tokens: 2000
   progress_notices: true
   threshold: 0.82
   target_ratio: 0.35

platform/hermes/install-profiles.sh

@@ -35,10 +35,11 @@ create_profile() {
   docker exec "$HERMES_CONTAINER" hermes -p "$name" config set compression.target_ratio 0.35
   docker exec "$HERMES_CONTAINER" hermes -p "$name" config set compression.protect_last_n 20
   docker exec "$HERMES_CONTAINER" hermes -p "$name" config set compression.protect_first_n 0
-  # The small compressor remains an opt-in benchmark endpoint. It is not safe
-  # as a global technical-session compressor: end-to-end tests showed that it
-  # can omit older exact KEY=value state. Remove stale opt-in settings so the
-  # selected 27B profile performs production compaction.
+  docker exec "$HERMES_CONTAINER" hermes -p "$name" config set compression.micro_compact true
+  docker exec "$HERMES_CONTAINER" hermes -p "$name" config set compression.micro_compact_every_n_turns 5
+  docker exec "$HERMES_CONTAINER" hermes -p "$name" config set compression.micro_compact_defrag_threshold_tokens 2000
+  # The selected 27B profile performs production compaction. A separate small
+  # compressor was removed after it lost exact technical state in benchmarks.
   docker exec "$HERMES_CONTAINER" hermes -p "$name" config unset auxiliary.compression || true
   docker exec "$HERMES_CONTAINER" hermes -p "$name" config set platform_toolsets.cli \
     '["web","terminal","file","skills","todo","memory","vision","tts"]'