diff --git a/nanobot/agent/loop.py b/nanobot/agent/loop.py
index 28b6131b5..96f7af1ee 100644
--- a/nanobot/agent/loop.py
+++ b/nanobot/agent/loop.py
@@ -157,6 +157,7 @@ class AgentLoop:
         channels_config: ChannelsConfig | None = None,
         timezone: str | None = None,
         session_ttl_minutes: int = 0,
+        consolidation_ratio: float = 0.5,
         hooks: list[AgentHook] | None = None,
         unified_session: bool = False,
         disabled_skills: list[str] | None = None,
@@ -236,6 +237,7 @@ class AgentLoop:
             build_messages=self.context.build_messages,
             get_tool_definitions=self.tools.get_definitions,
             max_completion_tokens=provider.generation.max_tokens,
+            consolidation_ratio=consolidation_ratio,
         )
         self.auto_compact = AutoCompact(
             sessions=self.sessions,
diff --git a/nanobot/agent/memory.py b/nanobot/agent/memory.py
index 5f235e3aa..138542700 100644
--- a/nanobot/agent/memory.py
+++ b/nanobot/agent/memory.py
@@ -361,6 +361,7 @@ class Consolidator:
         build_messages: Callable[..., list[dict[str, Any]]],
         get_tool_definitions: Callable[[], list[dict[str, Any]]],
         max_completion_tokens: int = 4096,
+        consolidation_ratio: float = 0.5,
     ):
         self.store = store
         self.provider = provider
@@ -368,6 +369,7 @@ class Consolidator:
         self.sessions = sessions
         self.context_window_tokens = context_window_tokens
         self.max_completion_tokens = max_completion_tokens
+        self.consolidation_ratio = consolidation_ratio
         self._build_messages = build_messages
         self._get_tool_definitions = get_tool_definitions
         self._locks: weakref.WeakValueDictionary[str, asyncio.Lock] = (
@@ -479,7 +481,7 @@ class Consolidator:
         lock = self.get_lock(session.key)
         async with lock:
             budget = self.context_window_tokens - self.max_completion_tokens - self._SAFETY_BUFFER
-            target = budget // 2
+            target = int(budget * self.consolidation_ratio)
             try:
                 estimated, source = self.estimate_session_prompt_tokens(session)
             except Exception:
diff --git a/nanobot/cli/commands.py b/nanobot/cli/commands.py
index 5f043050c..cbf9da434 100644
--- a/nanobot/cli/commands.py
+++ b/nanobot/cli/commands.py
@@ -593,6 +593,7 @@ def serve(
         unified_session=runtime_config.agents.defaults.unified_session,
         disabled_skills=runtime_config.agents.defaults.disabled_skills,
         session_ttl_minutes=runtime_config.agents.defaults.session_ttl_minutes,
+        consolidation_ratio=runtime_config.agents.defaults.consolidation_ratio,
         tools_config=runtime_config.tools,
     )
 
@@ -688,6 +689,7 @@ def gateway(
         unified_session=config.agents.defaults.unified_session,
         disabled_skills=config.agents.defaults.disabled_skills,
         session_ttl_minutes=config.agents.defaults.session_ttl_minutes,
+        consolidation_ratio=config.agents.defaults.consolidation_ratio,
         tools_config=config.tools,
     )
 
@@ -967,6 +969,7 @@ def agent(
         unified_session=config.agents.defaults.unified_session,
         disabled_skills=config.agents.defaults.disabled_skills,
         session_ttl_minutes=config.agents.defaults.session_ttl_minutes,
+        consolidation_ratio=config.agents.defaults.consolidation_ratio,
         tools_config=config.tools,
     )
     restart_notice = consume_restart_notice_from_env()
diff --git a/nanobot/config/schema.py b/nanobot/config/schema.py
index 66759cb31..10282a9c4 100644
--- a/nanobot/config/schema.py
+++ b/nanobot/config/schema.py
@@ -89,6 +89,13 @@ class AgentDefaults(Base):
         validation_alias=AliasChoices("idleCompactAfterMinutes", "sessionTtlMinutes"),
         serialization_alias="idleCompactAfterMinutes",
     )  # Auto-compact idle threshold in minutes (0 = disabled)
+    consolidation_ratio: float = Field(
+        default=0.5,
+        ge=0.1,
+        le=0.95,
+        validation_alias=AliasChoices("consolidationRatio"),
+        serialization_alias="consolidationRatio",
+    )  # Consolidation target ratio (0.5 = 50% of budget retained after compression)
     dream: DreamConfig = Field(default_factory=DreamConfig)
 
 
diff --git a/nanobot/nanobot.py b/nanobot/nanobot.py
index 96102e3d2..f9aeae84e 100644
--- a/nanobot/nanobot.py
+++ b/nanobot/nanobot.py
@@ -84,6 +84,7 @@ class Nanobot:
             unified_session=defaults.unified_session,
             disabled_skills=defaults.disabled_skills,
             session_ttl_minutes=defaults.session_ttl_minutes,
+            consolidation_ratio=defaults.consolidation_ratio,
             tools_config=config.tools,
         )
         return cls(loop)