diff --git a/poc-memory/agents/surface.agent b/poc-memory/agents/surface.agent
index 59d6cea..314c8ed 100644
--- a/poc-memory/agents/surface.agent
+++ b/poc-memory/agents/surface.agent
@@ -6,6 +6,10 @@ Your job is to find and surface memories relevant and useful to the current
 conversation that have not yet been surfaced by walking the graph memory graph.
 Prefer shorter and more focused memories.
 
+If graph walks aren't finding what you're looking for, try searching with
+queries on node keys, and then content. If these turn up relevant results, add
+appropriate links.
+
 Your output should be notes and analysis on the search - how useful do
 you think the search was, or do memories need to be organized better - and then
 then at the end, if you find relevant memories:
@@ -33,17 +37,11 @@ Already in current context (don't re-surface unless the conversation has shifted
 Surfaced before compaction (context was reset — re-surface if still relevant):
 {{seen_previous}}
 
-Context budget: {{memory_ratio}}
-The higher this percentage, the pickier you should be. Only surface memories
-that are significantly more relevant than what's already loaded. If memories
-are already 20%+ of context, the bar is very high — a new find must clearly
-add something the current set doesn't cover.
-
 How focused is the current conversation? If it's highly focus, you should only
 be surfacing highly relevant memories; if it seems more dreamy or brainstormy,
 go a bit wider and surface more.
 
-Search at most 3-5 hops, and output at most 2-3 memories, picking the most
+Search at most 2-3 hops, and output at most 2-3 memories, picking the most
 relevant. When you're done, output exactly one of these two formats:
 
 {{node:memory-instructions-core}}
diff --git a/poc-memory/src/config.rs b/poc-memory/src/config.rs
index 287197a..c9625b5 100644
--- a/poc-memory/src/config.rs
+++ b/poc-memory/src/config.rs
@@ -70,6 +70,10 @@ pub struct Config {
     /// Surface agent timeout in seconds. Kill if running longer than this.
     #[serde(default)]
     pub surface_timeout_secs: Option<u32>,
+    /// Hook events that trigger the surface agent (e.g. ["UserPromptSubmit"]).
+    /// Empty list disables surface agent.
+    #[serde(default)]
+    pub surface_hooks: Vec<String>,
 }
 
 impl Default for Config {
@@ -109,6 +113,7 @@ impl Default for Config {
                 "separator".into(), "split".into(),
             ],
             surface_timeout_secs: None,
+            surface_hooks: vec![],
         }
     }
 }