refactor(rolling): separate dialog rolling with memory topic binding,

now support register after-rolling consumer independently

Partner-Core/src/main/java/work/slhaf/partner/core/memory/MemoryCore.java

@@ -75,7 +75,7 @@ public class MemoryCore implements StateSerializable {
     @CapabilityMethod
     public Result<MemorySlice> getMemorySlice(String unitId, String sliceId) {
         MemoryUnit memoryUnit = memoryUnits.get(unitId);
-        if (memoryUnit == null || memoryUnit.getSlices() == null) {
+        if (memoryUnit == null) {
             return Result.failure(new MemoryLookupException(
                     "Memory slice not found: " + unitId + ":" + sliceId,
                     unitId + ":" + sliceId,

Partner-Core/src/main/java/work/slhaf/partner/module/communication/AfterRolling.java

@@ -0,0 +1,5 @@
+package work.slhaf.partner.module.communication;
+
+public interface AfterRolling {
+    void consume(RollingResult result);
+}

Partner-Core/src/main/java/work/slhaf/partner/module/communication/AfterRollingRegistry.java

@@ -0,0 +1,52 @@
+package work.slhaf.partner.module.communication;
+
+import lombok.EqualsAndHashCode;
+import lombok.extern.slf4j.Slf4j;
+import work.slhaf.partner.core.action.ActionCapability;
+import work.slhaf.partner.core.action.ActionCore;
+import work.slhaf.partner.framework.agent.exception.AgentRuntimeException;
+import work.slhaf.partner.framework.agent.exception.ExceptionReporterHandler;
+import work.slhaf.partner.framework.agent.factory.capability.annotation.InjectCapability;
+import work.slhaf.partner.framework.agent.factory.component.abstracts.AbstractAgentModule;
+import work.slhaf.partner.framework.agent.factory.component.annotation.Init;
+
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.ExecutorService;
+
+@EqualsAndHashCode(callSuper = true)
+@Slf4j
+public class AfterRollingRegistry extends AbstractAgentModule.Standalone {
+
+    private final CopyOnWriteArrayList<AfterRolling> consumers = new CopyOnWriteArrayList<>();
+    @InjectCapability
+    private ActionCapability actionCapability;
+    private ExecutorService executor;
+
+    @Init
+    public void init() {
+        executor = actionCapability.getExecutor(ActionCore.ExecutorType.VIRTUAL);
+    }
+
+    public void register(AfterRolling consumer) {
+        if (consumers.contains(consumer)) {
+            return;
+        }
+        consumers.add(consumer);
+    }
+
+    public void trigger(RollingResult result) {
+        if (consumers.isEmpty()) {
+            return;
+        }
+        executor.execute(() -> {
+            for (AfterRolling consumer : List.copyOf(consumers)) {
+                try {
+                    consumer.consume(result);
+                } catch (Exception e) {
+                    ExceptionReporterHandler.INSTANCE.report(new AgentRuntimeException("after-rolling consumer occurred exception: " + consumer.getClass().getSimpleName(), e));
+                }
+            }
+        });
+    }
+}

Partner-Core/src/main/java/work/slhaf/partner/module/communication/DialogRolling.java

@@ -0,0 +1,208 @@
+package work.slhaf.partner.module.communication;
+
+import kotlin.Unit;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import org.jetbrains.annotations.NotNull;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import work.slhaf.partner.core.action.ActionCapability;
+import work.slhaf.partner.core.action.ActionCore;
+import work.slhaf.partner.core.action.entity.Schedulable;
+import work.slhaf.partner.core.action.entity.StateAction;
+import work.slhaf.partner.core.cognition.BlockContent;
+import work.slhaf.partner.core.cognition.CognitionCapability;
+import work.slhaf.partner.core.cognition.ContextBlock;
+import work.slhaf.partner.core.memory.MemoryCapability;
+import work.slhaf.partner.core.memory.pojo.MemorySlice;
+import work.slhaf.partner.core.memory.pojo.MemoryUnit;
+import work.slhaf.partner.core.perceive.PerceiveCapability;
+import work.slhaf.partner.framework.agent.exception.AgentRuntimeException;
+import work.slhaf.partner.framework.agent.exception.ExceptionReporterHandler;
+import work.slhaf.partner.framework.agent.factory.capability.annotation.InjectCapability;
+import work.slhaf.partner.framework.agent.factory.component.abstracts.AbstractAgentModule;
+import work.slhaf.partner.framework.agent.factory.component.annotation.Init;
+import work.slhaf.partner.framework.agent.factory.component.annotation.InjectModule;
+import work.slhaf.partner.framework.agent.model.pojo.Message;
+import work.slhaf.partner.framework.agent.support.Result;
+import work.slhaf.partner.module.action.scheduler.ActionScheduler;
+import work.slhaf.partner.module.memory.runtime.MemoryRuntime;
+import work.slhaf.partner.module.memory.updater.summarizer.MultiSummarizer;
+import work.slhaf.partner.module.memory.updater.summarizer.SingleSummarizer;
+import work.slhaf.partner.module.memory.updater.summarizer.entity.SummarizeInput;
+import work.slhaf.partner.module.memory.updater.summarizer.entity.SummarizeResult;
+import work.slhaf.partner.runtime.PartnerRunningFlowContext;
+
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+@EqualsAndHashCode(callSuper = true)
+@Data
+public class DialogRolling extends AbstractAgentModule.Running<PartnerRunningFlowContext> {
+
+    private static final String AUTO_UPDATE_CRON = "0/10 * * * * ?";
+    private static final long UPDATE_TRIGGER_INTERVAL = 60 * 60 * 1000;
+    private static final int CONTEXT_RETAIN_DIVISOR = 6;
+    private static final int MEMORY_UPDATE_TRIGGER_ROLL_LIMIT = 36;
+    private final AtomicBoolean rolling = new AtomicBoolean(false);
+    @InjectCapability
+    private CognitionCapability cognitionCapability;
+    @InjectCapability
+    private MemoryCapability memoryCapability;
+    @InjectCapability
+    private PerceiveCapability perceiveCapability;
+    @InjectCapability
+    private ActionCapability actionCapability;
+    @InjectModule
+    private MemoryRuntime memoryRuntime;
+    @InjectModule
+    private MultiSummarizer multiSummarizer;
+    @InjectModule
+    private SingleSummarizer singleSummarizer;
+    @InjectModule
+    private ActionScheduler actionScheduler;
+    @InjectModule
+    private AfterRollingRegistry afterRollingRegistry;
+    private ExecutorService executor;
+
+    @Init
+    public void init() {
+        executor = actionCapability.getExecutor(ActionCore.ExecutorType.VIRTUAL);
+        registerScheduledUpdater();
+    }
+
+    private void registerScheduledUpdater() {
+        StateAction stateAction = new StateAction(
+                "system",
+                "dialog-rolling-auto-update",
+                "定时检查并触发对话滚动",
+                Schedulable.ScheduleType.CYCLE,
+                AUTO_UPDATE_CRON,
+                new StateAction.Trigger.Call(() -> {
+                    tryAutoRolling();
+                    return Unit.INSTANCE;
+                })
+        );
+        actionScheduler.schedule(stateAction);
+        log.info("Dialog rolling has been registered into ActionScheduler, cron={}", AUTO_UPDATE_CRON);
+    }
+
+    @Override
+    protected void doExecute(@NotNull PartnerRunningFlowContext context) {
+        if (cognitionCapability.getChatMessages().size() < MEMORY_UPDATE_TRIGGER_ROLL_LIMIT) {
+            return;
+        }
+        executor.execute(() -> triggerRolling(false));
+    }
+
+    private void tryAutoRolling() {
+        long currentTime = System.currentTimeMillis();
+        int chatCount = cognitionCapability.snapshotChatMessages().size();
+        if (currentTime - perceiveCapability.showLastInteract().toEpochMilli() > UPDATE_TRIGGER_INTERVAL && chatCount > 1) {
+            triggerRolling(true);
+            log.debug("Dialog rolling: auto triggered");
+        }
+    }
+
+    private void triggerRolling(boolean refreshMemoryId) {
+        if (!rolling.compareAndSet(false, true)) {
+            log.debug("Dialog rolling: rolling is already executing");
+            return;
+        }
+        try {
+            List<Message> fullChatSnapshot = cognitionCapability.snapshotChatMessages();
+            if (fullChatSnapshot.size() <= 1) {
+                return;
+            }
+            List<Message> chatIncrement = resolveChatIncrement(fullChatSnapshot);
+            if (chatIncrement.isEmpty()) {
+                if (refreshMemoryId) {
+                    memoryCapability.refreshMemorySession();
+                }
+                return;
+            }
+
+            RollingResult result = buildRollingResult(chatIncrement, fullChatSnapshot.size(), CONTEXT_RETAIN_DIVISOR);
+            applyRolling(result);
+            afterRollingRegistry.trigger(result);
+
+            if (refreshMemoryId) {
+                memoryCapability.refreshMemorySession();
+            }
+        } catch (Exception e) {
+            ExceptionReporterHandler.INSTANCE.report(new AgentRuntimeException("Dialog rolling failed", e));
+        } finally {
+            rolling.set(false);
+        }
+    }
+
+    List<Message> resolveChatIncrement(List<Message> fullChatSnapshot) {
+        String memoryId = memoryCapability.getMemorySessionId();
+        if (memoryId.isBlank()) {
+            return fullChatSnapshot;
+        }
+        MemoryUnit existingUnit = memoryCapability.getMemoryUnit(memoryId);
+        if (existingUnit.getConversationMessages().isEmpty()) {
+            return fullChatSnapshot;
+        }
+        List<Message> existingMessages = existingUnit.getConversationMessages();
+        int maxOverlap = Math.min(existingMessages.size(), fullChatSnapshot.size());
+        for (int overlap = maxOverlap; overlap > 0; overlap--) {
+            List<Message> existingSuffix = existingMessages.subList(existingMessages.size() - overlap, existingMessages.size());
+            List<Message> snapshotPrefix = fullChatSnapshot.subList(0, overlap);
+            if (existingSuffix.equals(snapshotPrefix)) {
+                return fullChatSnapshot.subList(overlap, fullChatSnapshot.size());
+            }
+        }
+        return fullChatSnapshot;
+    }
+
+    @NotNull
+    RollingResult buildRollingResult(List<Message> chatSnapshot, int rollingSize, int retainDivisor) {
+        SummarizeInput summarizeInput = new SummarizeInput(chatSnapshot, memoryRuntime.getTopicTree());
+        singleSummarizer.execute(summarizeInput.getChatMessages());
+        Result<SummarizeResult> summarizeResult = multiSummarizer.execute(summarizeInput);
+        String summary = summarizeResult.fold(
+                SummarizeResult::getSummary,
+                exp -> "no summary, due to exception"
+        );
+        if (summary.isBlank()) {
+            summary = "no summary, due to empty summarize result";
+        }
+        MemoryUnit memoryUnit = memoryCapability.updateMemoryUnit(chatSnapshot, summary);
+        MemorySlice newSlice = memoryUnit.getSlices().getLast();
+        return new RollingResult(memoryUnit, newSlice, List.copyOf(chatSnapshot), newSlice.getSummary(), rollingSize, retainDivisor);
+    }
+
+    private void applyRolling(RollingResult result) {
+        cognitionCapability.contextWorkspace().register(new ContextBlock(
+                buildDialogAbstractBlock(result.summary(), result.memoryUnit().getId(), result.memorySlice().getId()),
+                Set.of(ContextBlock.VisibleDomain.MEMORY, ContextBlock.VisibleDomain.COMMUNICATION),
+                20,
+                5,
+                10
+        ));
+        cognitionCapability.rollChatMessagesWithSnapshot(result.rollingSize(), result.retainDivisor());
+    }
+
+    private @NotNull BlockContent buildDialogAbstractBlock(String summary, String unitId, String sliceId) {
+        return new BlockContent("dialog_history", "dialog_rolling") {
+            @Override
+            protected void fillXml(@NotNull Document document, @NotNull Element root) {
+                root.setAttribute("related_memory_unit_id", unitId);
+                root.setAttribute("related_memory_slice_id", sliceId);
+                root.setAttribute("datetime", ZonedDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
+                appendTextElement(document, root, "summary", summary);
+            }
+        };
+    }
+
+    @Override
+    public int order() {
+        return 7;
+    }
+}

Partner-Core/src/main/java/work/slhaf/partner/module/communication/DialogRollingService.java

@@ -1,77 +0,0 @@
-package work.slhaf.partner.module.communication;
-
-import kotlin.Unit;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-import org.w3c.dom.Document;
-import org.w3c.dom.Element;
-import work.slhaf.partner.core.cognition.BlockContent;
-import work.slhaf.partner.core.cognition.CognitionCapability;
-import work.slhaf.partner.core.cognition.ContextBlock;
-import work.slhaf.partner.framework.agent.factory.capability.annotation.InjectCapability;
-import work.slhaf.partner.framework.agent.factory.component.abstracts.AbstractAgentModule;
-import work.slhaf.partner.framework.agent.model.ActivateModel;
-import work.slhaf.partner.framework.agent.model.pojo.Message;
-import work.slhaf.partner.module.TaskBlock;
-
-import java.time.ZonedDateTime;
-import java.time.format.DateTimeFormatter;
-import java.util.List;
-import java.util.Locale;
-import java.util.Set;
-
-public class DialogRollingService extends AbstractAgentModule.Standalone implements ActivateModel {
-
-    @InjectCapability
-    private CognitionCapability cognitionCapability;
-
-    public void rollMessages(List<Message> snapshotMessages, int rollingSize, int retainSize) {
-        rollMessages(snapshotMessages, rollingSize, retainSize, null, null, null);
-    }
-
-    public void rollMessages(List<Message> snapshotMessages, int rollingSize, int retainSize, @Nullable String unitId, @Nullable String sliceId, @Nullable String summary) {
-        summary = summary == null ? summarize(snapshotMessages) : summary;
-        cognitionCapability.contextWorkspace().register(new ContextBlock(
-                buildDialogAbstractBlock(summary, unitId, sliceId),
-                Set.of(ContextBlock.VisibleDomain.MEMORY, ContextBlock.VisibleDomain.COMMUNICATION),
-                35,
-                8,
-                10
-        ));
-        cognitionCapability.rollChatMessagesWithSnapshot(rollingSize, retainSize);
-    }
-
-    private String summarize(List<Message> snapshotMessages) {
-        List<Message> messages = List.of(
-                resolveTaskBlock(snapshotMessages)
-        );
-        return chat(messages).getOrThrow();
-    }
-
-    private @NotNull BlockContent buildDialogAbstractBlock(String summary, @Nullable String unitId, @Nullable String sliceId) {
-        return new BlockContent("dialog_history", "dialog_rolling_service") {
-            @Override
-            protected void fillXml(@NotNull Document document, @NotNull Element root) {
-                if (unitId != null) root.setAttribute("related_memory_unit_id", unitId);
-                if (sliceId != null) root.setAttribute("related_memory_slice_id", sliceId);
-                root.setAttribute("datetime", ZonedDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
-
-                appendTextElement(document, root, "summary", summary);
-            }
-        };
-    }
-
-    private Message resolveTaskBlock(List<Message> snapshotMessages) {
-        return new TaskBlock() {
-            @Override
-            protected void fillXml(@NotNull Document document, @NotNull Element root) {
-                appendRepeatedElements(document, root, "message", snapshotMessages, (messageElement, message) -> {
-                    messageElement.setAttribute("role", message.getRole().name().toLowerCase(Locale.ROOT));
-                    messageElement.setTextContent(message.getContent());
-                    return Unit.INSTANCE;
-                });
-            }
-        }.encodeToMessage();
-    }
-
-}

Partner-Core/src/main/java/work/slhaf/partner/module/communication/RollingResult.java

@@ -0,0 +1,17 @@
+package work.slhaf.partner.module.communication;
+
+import work.slhaf.partner.core.memory.pojo.MemorySlice;
+import work.slhaf.partner.core.memory.pojo.MemoryUnit;
+import work.slhaf.partner.framework.agent.model.pojo.Message;
+
+import java.util.List;
+
+public record RollingResult(
+        MemoryUnit memoryUnit,
+        MemorySlice memorySlice,
+        List<Message> incrementMessages,
+        String summary,
+        int rollingSize,
+        int retainDivisor
+) {
+}

Partner-Core/src/main/java/work/slhaf/partner/module/memory/runtime/MemoryRuntime.java

@@ -50,8 +50,7 @@ public class MemoryRuntime extends AbstractAgentModule.Standalone implements Sta
     }
 
     private void checkAndSetMemoryId() {
-        String currentMemoryId = memoryCapability.getMemorySessionId();
-        if (currentMemoryId == null || cognitionCapability.getChatMessages().isEmpty()) {
+        if (cognitionCapability.getChatMessages().isEmpty()) {
             memoryCapability.refreshMemorySession();
         }
     }
@@ -75,9 +74,11 @@ public class MemoryRuntime extends AbstractAgentModule.Standalone implements Sta
         MemorySlice memorySlice = memoryUnit.getSlices().getLast();
         SliceRef sliceRef = new SliceRef(memoryUnit.getId(), memorySlice.getId());
         indexMemoryUnit(memoryUnit);
+        if (topicPath != null && !topicPath.isBlank()) {
             bindTopic(topicPath, sliceRef);
-        if (relatedTopicPaths != null) {
+        }
         for (String relatedTopicPath : relatedTopicPaths) {
+            if (relatedTopicPath != null && !relatedTopicPath.isBlank()) {
                 bindTopic(relatedTopicPath, sliceRef);
             }
         }
@@ -89,7 +90,6 @@ public class MemoryRuntime extends AbstractAgentModule.Standalone implements Sta
             for (CopyOnWriteArrayList<SliceRef> refs : dateIndex.values()) {
                 refs.removeIf(ref -> memoryUnit.getId().equals(ref.getUnitId()));
             }
-            if (memoryUnit.getSlices() != null) {
             for (MemorySlice slice : memoryUnit.getSlices()) {
                 LocalDate date = Instant.ofEpochMilli(slice.getTimestamp())
                         .atZone(ZoneId.systemDefault())
@@ -97,7 +97,6 @@ public class MemoryRuntime extends AbstractAgentModule.Standalone implements Sta
                 dateIndex.computeIfAbsent(date, key -> new CopyOnWriteArrayList<>())
                         .addIfAbsent(new SliceRef(memoryUnit.getId(), slice.getId()));
             }
-            }
         } finally {
             runtimeLock.unlock();
         }
@@ -192,7 +191,7 @@ public class MemoryRuntime extends AbstractAgentModule.Standalone implements Sta
 
     private List<Message> sliceMessages(MemoryUnit memoryUnit, MemorySlice memorySlice) {
         List<Message> conversationMessages = memoryUnit.getConversationMessages();
-        if (conversationMessages == null || conversationMessages.isEmpty()) {
+        if (conversationMessages.isEmpty()) {
             return List.of();
         }
         int size = conversationMessages.size();

Partner-Core/src/main/java/work/slhaf/partner/module/memory/updater/MemoryUpdater.java

@@ -1,192 +1,94 @@
 package work.slhaf.partner.module.memory.updater;
 
-import kotlin.Unit;
-import lombok.Data;
-import lombok.EqualsAndHashCode;
 import org.jetbrains.annotations.NotNull;
-import work.slhaf.partner.core.action.ActionCapability;
-import work.slhaf.partner.core.action.ActionCore;
-import work.slhaf.partner.core.action.entity.Schedulable;
-import work.slhaf.partner.core.action.entity.StateAction;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
 import work.slhaf.partner.core.cognition.CognitionCapability;
-import work.slhaf.partner.core.memory.MemoryCapability;
-import work.slhaf.partner.core.memory.pojo.MemorySlice;
-import work.slhaf.partner.core.memory.pojo.MemoryUnit;
-import work.slhaf.partner.core.perceive.PerceiveCapability;
+import work.slhaf.partner.core.cognition.ContextBlock;
 import work.slhaf.partner.framework.agent.factory.capability.annotation.InjectCapability;
 import work.slhaf.partner.framework.agent.factory.component.abstracts.AbstractAgentModule;
 import work.slhaf.partner.framework.agent.factory.component.annotation.Init;
 import work.slhaf.partner.framework.agent.factory.component.annotation.InjectModule;
+import work.slhaf.partner.framework.agent.model.ActivateModel;
 import work.slhaf.partner.framework.agent.model.pojo.Message;
-import work.slhaf.partner.module.action.scheduler.ActionScheduler;
-import work.slhaf.partner.module.communication.DialogRollingService;
+import work.slhaf.partner.framework.agent.support.Result;
+import work.slhaf.partner.module.TaskBlock;
+import work.slhaf.partner.module.communication.AfterRolling;
+import work.slhaf.partner.module.communication.AfterRollingRegistry;
+import work.slhaf.partner.module.communication.RollingResult;
 import work.slhaf.partner.module.memory.runtime.MemoryRuntime;
-import work.slhaf.partner.module.memory.updater.summarizer.MultiSummarizer;
-import work.slhaf.partner.module.memory.updater.summarizer.SingleSummarizer;
-import work.slhaf.partner.module.memory.updater.summarizer.entity.SummarizeInput;
-import work.slhaf.partner.runtime.PartnerRunningFlowContext;
+import work.slhaf.partner.module.memory.updater.summarizer.entity.MemoryTopicResult;
 
 import java.util.List;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.atomic.AtomicBoolean;
 
-@EqualsAndHashCode(callSuper = true)
-@Data
-public class MemoryUpdater extends AbstractAgentModule.Running<PartnerRunningFlowContext> {
-
-    private static final String AUTO_UPDATE_CRON = "0/10 * * * * ?";
-    private static final long UPDATE_TRIGGER_INTERVAL = 60 * 60 * 1000;
-    private static final int CONTEXT_RETAIN_DIVISOR = 6;
-    private static final int MEMORY_UPDATE_TRIGGER_ROLL_LIMIT = 36;
+public class MemoryUpdater extends AbstractAgentModule.Standalone implements AfterRolling, ActivateModel {
 
     @InjectCapability
     private CognitionCapability cognitionCapability;
-    @InjectCapability
-    private MemoryCapability memoryCapability;
-    @InjectCapability
-    private PerceiveCapability perceiveCapability;
-    @InjectCapability
-    private ActionCapability actionCapability;
 
     @InjectModule
     private MemoryRuntime memoryRuntime;
     @InjectModule
-    private MultiSummarizer multiSummarizer;
-    @InjectModule
-    private SingleSummarizer singleSummarizer;
-    @InjectModule
-    private ActionScheduler actionScheduler;
-    @InjectModule
-    private DialogRollingService dialogRollingService;
-
-    private final AtomicBoolean updating = new AtomicBoolean(false);
-    private ExecutorService executor;
+    private AfterRollingRegistry afterRollingRegistry;
 
     @Init
     public void init() {
-        executor = actionCapability.getExecutor(ActionCore.ExecutorType.VIRTUAL);
-        registerScheduledUpdater();
-    }
-
-    private void registerScheduledUpdater() {
-        StateAction stateAction = new StateAction(
-                "system",
-                "memory-auto-update",
-                "定时检查并触发记忆更新",
-                Schedulable.ScheduleType.CYCLE,
-                AUTO_UPDATE_CRON,
-                new StateAction.Trigger.Call(() -> {
-                    tryAutoUpdate();
-                    return Unit.INSTANCE;
-                })
-        );
-        actionScheduler.schedule(stateAction);
-        log.info("[MemoryUpdater] 记忆自动更新已注册到 ActionScheduler, cron={}", AUTO_UPDATE_CRON);
+        afterRollingRegistry.register(this);
     }
 
     @Override
-    protected void doExecute(@NotNull PartnerRunningFlowContext context) {
-        boolean trigger = cognitionCapability.getChatMessages().size() >= MEMORY_UPDATE_TRIGGER_ROLL_LIMIT;
-        if (!trigger) {
+    public void consume(RollingResult result) {
+        List<Message> slicedMessages = sliceMessages(result);
+        if (slicedMessages.isEmpty()) {
             return;
         }
-        executor.execute(() -> {
-            log.debug("[MemoryUpdater] 记忆更新触发");
-            triggerMemoryUpdate(false);
-        });
-    }
-
-    private void tryAutoUpdate() {
-        long currentTime = System.currentTimeMillis();
-        int chatCount = cognitionCapability.snapshotChatMessages().size();
-        if (currentTime - perceiveCapability.showLastInteract().toEpochMilli() > UPDATE_TRIGGER_INTERVAL && chatCount > 1) {
-            triggerMemoryUpdate(true);
-            log.info("[MemoryUpdater] 记忆更新: 自动触发");
-        }
-    }
-
-    private void triggerMemoryUpdate(boolean refreshMemoryId) {
-        if (!updating.compareAndSet(false, true)) {
-            log.debug("[MemoryUpdater] 更新任务已在执行中，本次触发跳过");
-            return;
-        }
-        try {
-            List<Message> fullChatSnapshot = cognitionCapability.snapshotChatMessages();
-            if (fullChatSnapshot.size() <= 1) {
-                return;
-            }
-            List<Message> chatIncrement = resolveChatIncrement(fullChatSnapshot);
-            if (chatIncrement.isEmpty()) {
-                if (refreshMemoryId) {
-                    memoryCapability.refreshMemorySession();
-                }
-                return;
-            }
-
-            RollingRecord record = updateMemory(chatIncrement);
-            dialogRollingService.rollMessages(chatIncrement, fullChatSnapshot.size(), CONTEXT_RETAIN_DIVISOR, record.unitId, record.sliceId, record.summary);
-
-            if (refreshMemoryId) {
-                memoryCapability.refreshMemorySession();
-            }
-        } catch (Exception e) {
-            log.error("[MemoryUpdater] 记忆更新线程出错: ", e);
-        } finally {
-            updating.set(false);
-        }
-    }
-
-    private List<Message> resolveChatIncrement(List<Message> fullChatSnapshot) {
-        String memoryId = memoryCapability.getMemorySessionId();
-        if (memoryId == null || memoryId.isBlank()) {
-            return fullChatSnapshot;
-        }
-        MemoryUnit existingUnit = memoryCapability.getMemoryUnit(memoryId);
-        if (existingUnit == null || existingUnit.getConversationMessages() == null || existingUnit.getConversationMessages().isEmpty()) {
-            return fullChatSnapshot;
-        }
-        List<Message> existingMessages = existingUnit.getConversationMessages();
-        int maxOverlap = Math.min(existingMessages.size(), fullChatSnapshot.size());
-        for (int overlap = maxOverlap; overlap > 0; overlap--) {
-            List<Message> existingSuffix = existingMessages.subList(existingMessages.size() - overlap, existingMessages.size());
-            List<Message> snapshotPrefix = fullChatSnapshot.subList(0, overlap);
-            if (existingSuffix.equals(snapshotPrefix)) {
-                return fullChatSnapshot.subList(overlap, fullChatSnapshot.size());
-            }
-        }
-        return fullChatSnapshot;
-    }
-
-    private RollingRecord updateMemory(List<Message> chatSnapshot) {
-        log.debug("[MemoryUpdater] 记忆更新流程开始...");
-        if (chatSnapshot.isEmpty()) {
-            return null;
-        }
-        SummarizeInput summarizeInput = new SummarizeInput(chatSnapshot, memoryRuntime.getTopicTree());
-        singleSummarizer.execute(summarizeInput.getChatMessages());
-        return multiSummarizer.execute(summarizeInput).fold(
-                summarizeResult -> {
-                    MemoryUnit memoryUnit = memoryCapability.updateMemoryUnit(chatSnapshot, summarizeResult.getSummary());
-                    memoryRuntime.recordMemory(
-                            memoryUnit,
-                            summarizeResult.getTopicPath(),
-                            summarizeResult.getRelatedTopicPath()
+        Result<MemoryTopicResult> extractResult = formattedChat(
+                List.of(
+                        cognitionCapability.contextWorkspace().resolve(List.of(
+                                ContextBlock.VisibleDomain.COGNITION,
+                                ContextBlock.VisibleDomain.MEMORY
+                        )).encodeToMessage(),
+                        resolveTopicTaskMessage(result, slicedMessages)
+                ),
+                MemoryTopicResult.class
         );
-                    MemorySlice newSlice = memoryUnit.getSlices().getLast();
-                    return new RollingRecord(memoryUnit.getId(), newSlice.getId(), newSlice.getSummary());
-                },
-                exp -> {
-                    MemoryUnit memoryUnit = memoryCapability.updateMemoryUnit(chatSnapshot, "no summary, due to exception");
-                    MemorySlice newSlice = memoryUnit.getSlices().getLast();
-                    return new RollingRecord(memoryUnit.getId(), newSlice.getId(), newSlice.getSummary());
+        extractResult.onSuccess(topicResult -> {
+            String topicPath = topicResult.getTopicPath() == null ? null : memoryRuntime.fixTopicPath(topicResult.getTopicPath());
+            List<String> relatedTopicPaths = topicResult.getRelatedTopicPaths() == null
+                    ? List.of()
+                    : topicResult.getRelatedTopicPaths().stream().map(memoryRuntime::fixTopicPath).toList();
+            memoryRuntime.recordMemory(result.memoryUnit(), topicPath, relatedTopicPaths);
+        }).onFailure(exp -> memoryRuntime.recordMemory(result.memoryUnit(), null, List.of()));
+    }
+
+    private List<Message> sliceMessages(RollingResult result) {
+        int size = result.memoryUnit().getConversationMessages().size();
+        int start = Math.clamp(result.memorySlice().getStartIndex(), 0, size);
+        int end = Math.clamp(result.memorySlice().getEndIndex(), start, size);
+        if (start >= end) {
+            return List.of();
+        }
+        return result.memoryUnit().getConversationMessages().subList(start, end);
+    }
+
+    private Message resolveTopicTaskMessage(RollingResult result, List<Message> slicedMessages) {
+        return new TaskBlock() {
+            @Override
+            protected void fillXml(@NotNull Document document, @NotNull Element root) {
+                appendTextElement(document, root, "current_topic_tree", memoryRuntime.getTopicTree());
+                appendTextElement(document, root, "slice_summary", result.summary());
+                appendRepeatedElements(document, root, "message", slicedMessages, (messageElement, message) -> {
+                    messageElement.setAttribute("role", message.roleValue());
+                    messageElement.setTextContent(message.getContent());
+                    return kotlin.Unit.INSTANCE;
                 });
             }
+        }.encodeToMessage();
+    }
 
     @Override
-    public int order() {
-        return 7;
-    }
-
-    private record RollingRecord(String unitId, String sliceId, String summary) {
+    @NotNull
+    public String modelKey() {
+        return "topic_extractor";
     }
 }

Partner-Core/src/main/java/work/slhaf/partner/module/memory/updater/summarizer/entity/MemoryTopicResult.java

@@ -0,0 +1,11 @@
+package work.slhaf.partner.module.memory.updater.summarizer.entity;
+
+import lombok.Data;
+
+import java.util.List;
+
+@Data
+public class MemoryTopicResult {
+    private String topicPath;
+    private List<String> relatedTopicPaths;
+}

Partner-Core/src/test/java/work/slhaf/partner/module/communication/DialogRollingTest.java

@@ -0,0 +1,231 @@
+package work.slhaf.partner.module.communication;
+
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+import org.mockito.Mockito;
+import work.slhaf.partner.core.memory.MemoryCapability;
+import work.slhaf.partner.core.memory.pojo.MemorySlice;
+import work.slhaf.partner.core.memory.pojo.MemoryUnit;
+import work.slhaf.partner.framework.agent.model.pojo.Message;
+import work.slhaf.partner.framework.agent.support.Result;
+import work.slhaf.partner.module.memory.runtime.MemoryRuntime;
+import work.slhaf.partner.module.memory.updater.summarizer.MultiSummarizer;
+import work.slhaf.partner.module.memory.updater.summarizer.SingleSummarizer;
+import work.slhaf.partner.module.memory.updater.summarizer.entity.SummarizeResult;
+
+import java.lang.reflect.Field;
+import java.nio.file.Path;
+import java.util.*;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.mockito.Mockito.when;
+
+class DialogRollingTest {
+
+    @BeforeAll
+    static void beforeAll(@TempDir Path tempDir) {
+        System.setProperty("user.home", tempDir.toAbsolutePath().toString());
+    }
+
+    private static void setField(Object target, String fieldName, Object value) throws Exception {
+        Field field = target.getClass().getDeclaredField(fieldName);
+        field.setAccessible(true);
+        field.set(target, value);
+    }
+
+    private static Message message(Message.Character role, String content) {
+        return new Message(role, content);
+    }
+
+    private static SummarizeResult summarizeResult(String summary, String topicPath, List<String> relatedTopicPath) {
+        SummarizeResult result = new SummarizeResult();
+        result.setSummary(summary);
+        result.setTopicPath(topicPath);
+        result.setRelatedTopicPath(relatedTopicPath);
+        return result;
+    }
+
+    @Test
+    void shouldDelegateMemoryUpdateToCapability() throws Exception {
+        String sessionId = "dialog-rolling-" + UUID.randomUUID();
+        StubMemoryCapability memoryCapability = new StubMemoryCapability(sessionId);
+        DialogRolling dialogRolling = new DialogRolling();
+        MemoryRuntime memoryRuntime = Mockito.mock(MemoryRuntime.class);
+        MultiSummarizer multiSummarizer = Mockito.mock(MultiSummarizer.class);
+        SingleSummarizer singleSummarizer = Mockito.mock(SingleSummarizer.class);
+        setField(dialogRolling, "memoryCapability", memoryCapability);
+        setField(dialogRolling, "memoryRuntime", memoryRuntime);
+        setField(dialogRolling, "multiSummarizer", multiSummarizer);
+        setField(dialogRolling, "singleSummarizer", singleSummarizer);
+
+        when(memoryRuntime.getTopicTree()).thenReturn("topic-tree");
+        when(multiSummarizer.execute(Mockito.any())).thenReturn(Result.success(
+                summarizeResult("new-summary", "topic/main", List.of("topic/related"))
+        ));
+
+        MemoryUnit existingUnit = new MemoryUnit(sessionId);
+        existingUnit.getConversationMessages().addAll(List.of(
+                message(Message.Character.USER, "old-user"),
+                message(Message.Character.ASSISTANT, "old-assistant")
+        ));
+        existingUnit.getSlices().add(MemorySlice.restore("slice-1", 0, 2, "old-summary", 1L));
+        memoryCapability.putUnit(existingUnit);
+
+        RollingResult rollingResult = dialogRolling.buildRollingResult(List.of(
+                message(Message.Character.USER, "new-user"),
+                message(Message.Character.ASSISTANT, "new-assistant")
+        ), 4, 6);
+
+        MemoryUnit merged = memoryCapability.getMemoryUnit(sessionId);
+        assertEquals(List.of("old-user", "old-assistant", "new-user", "new-assistant"),
+                merged.getConversationMessages().stream().map(Message::getContent).toList());
+        assertEquals(2, merged.getSlices().size());
+
+        MemorySlice appendedSlice = merged.getSlices().getLast();
+        assertNotNull(appendedSlice.getId());
+        assertEquals(2, appendedSlice.getStartIndex());
+        assertEquals(4, appendedSlice.getEndIndex());
+        assertEquals("new-summary", appendedSlice.getSummary());
+        assertEquals(sessionId, rollingResult.memoryUnit().getId());
+        assertEquals(appendedSlice.getId(), rollingResult.memorySlice().getId());
+        assertEquals("new-summary", rollingResult.summary());
+    }
+
+    @Test
+    void shouldCreateFirstSliceForFreshSessionThroughCapability() throws Exception {
+        String sessionId = "dialog-rolling-" + UUID.randomUUID();
+        StubMemoryCapability memoryCapability = new StubMemoryCapability(sessionId);
+        DialogRolling dialogRolling = new DialogRolling();
+        MemoryRuntime memoryRuntime = Mockito.mock(MemoryRuntime.class);
+        MultiSummarizer multiSummarizer = Mockito.mock(MultiSummarizer.class);
+        SingleSummarizer singleSummarizer = Mockito.mock(SingleSummarizer.class);
+        setField(dialogRolling, "memoryCapability", memoryCapability);
+        setField(dialogRolling, "memoryRuntime", memoryRuntime);
+        setField(dialogRolling, "multiSummarizer", multiSummarizer);
+        setField(dialogRolling, "singleSummarizer", singleSummarizer);
+
+        when(memoryRuntime.getTopicTree()).thenReturn("topic-tree");
+        when(multiSummarizer.execute(Mockito.any())).thenReturn(Result.success(
+                summarizeResult("fresh-summary", "topic/root", List.of())
+        ));
+
+        RollingResult rollingResult = dialogRolling.buildRollingResult(List.of(
+                message(Message.Character.USER, "first"),
+                message(Message.Character.ASSISTANT, "second")
+        ), 2, 6);
+
+        MemoryUnit created = memoryCapability.getMemoryUnit(sessionId);
+        assertNotNull(created);
+        assertEquals(List.of("first", "second"),
+                created.getConversationMessages().stream().map(Message::getContent).toList());
+        assertEquals(1, created.getSlices().size());
+        assertEquals(0, created.getSlices().getFirst().getStartIndex());
+        assertEquals(2, created.getSlices().getFirst().getEndIndex());
+        assertEquals("fresh-summary", created.getSlices().getFirst().getSummary());
+        assertEquals(created, rollingResult.memoryUnit());
+    }
+
+    @Test
+    void shouldTrimPersistedOverlapFromCurrentSnapshot() throws Exception {
+        String sessionId = "dialog-rolling-" + UUID.randomUUID();
+        StubMemoryCapability memoryCapability = new StubMemoryCapability(sessionId);
+        DialogRolling dialogRolling = new DialogRolling();
+        setField(dialogRolling, "memoryCapability", memoryCapability);
+
+        MemoryUnit existingUnit = Mockito.mock(MemoryUnit.class);
+        when(existingUnit.getConversationMessages()).thenReturn(List.of(
+                message(Message.Character.USER, "m1"),
+                message(Message.Character.ASSISTANT, "m2"),
+                message(Message.Character.USER, "m3"),
+                message(Message.Character.ASSISTANT, "m4")
+        ));
+        memoryCapability.putUnit(sessionId, existingUnit);
+
+        List<Message> increment = dialogRolling.resolveChatIncrement(List.of(
+                message(Message.Character.USER, "m3"),
+                message(Message.Character.ASSISTANT, "m4"),
+                message(Message.Character.USER, "m5"),
+                message(Message.Character.ASSISTANT, "m6")
+        ));
+
+        assertEquals(List.of("m5", "m6"), increment.stream().map(Message::getContent).toList());
+    }
+
+    @Test
+    void shouldFallbackWhenSummarizeResultIsBlank() throws Exception {
+        String sessionId = "dialog-rolling-" + UUID.randomUUID();
+        StubMemoryCapability memoryCapability = new StubMemoryCapability(sessionId);
+        DialogRolling dialogRolling = new DialogRolling();
+        MemoryRuntime memoryRuntime = Mockito.mock(MemoryRuntime.class);
+        MultiSummarizer multiSummarizer = Mockito.mock(MultiSummarizer.class);
+        SingleSummarizer singleSummarizer = Mockito.mock(SingleSummarizer.class);
+        setField(dialogRolling, "memoryCapability", memoryCapability);
+        setField(dialogRolling, "memoryRuntime", memoryRuntime);
+        setField(dialogRolling, "multiSummarizer", multiSummarizer);
+        setField(dialogRolling, "singleSummarizer", singleSummarizer);
+
+        when(memoryRuntime.getTopicTree()).thenReturn("topic-tree");
+        when(multiSummarizer.execute(Mockito.any())).thenReturn(Result.success(summarizeResult("   ", "topic/root", List.of())));
+
+        RollingResult rollingResult = dialogRolling.buildRollingResult(List.of(
+                message(Message.Character.USER, "u1"),
+                message(Message.Character.ASSISTANT, "a1")
+        ), 2, 6);
+
+        assertEquals(sessionId, rollingResult.memoryUnit().getId());
+        assertEquals("no summary, due to empty summarize result", rollingResult.summary());
+    }
+
+    private static final class StubMemoryCapability implements MemoryCapability {
+        private final String sessionId;
+        private final Map<String, MemoryUnit> units = new HashMap<>();
+
+        private StubMemoryCapability(String sessionId) {
+            this.sessionId = sessionId;
+        }
+
+        private void putUnit(String unitId, MemoryUnit memoryUnit) {
+            units.put(unitId == null ? memoryUnit.getId() : unitId, memoryUnit);
+        }
+
+        private void putUnit(MemoryUnit memoryUnit) {
+            units.put(memoryUnit.getId(), memoryUnit);
+        }
+
+        @Override
+        public MemoryUnit getMemoryUnit(String unitId) {
+            return units.get(unitId);
+        }
+
+        @Override
+        public work.slhaf.partner.framework.agent.support.Result<MemorySlice> getMemorySlice(String unitId, String sliceId) {
+            return null;
+        }
+
+        @Override
+        public MemoryUnit updateMemoryUnit(List<Message> chatMessages, String summary) {
+            MemoryUnit unit = units.computeIfAbsent(sessionId, MemoryUnit::new);
+            unit.updateTimestamp();
+            int startIndex = unit.getConversationMessages().size();
+            unit.getConversationMessages().addAll(chatMessages);
+            unit.getSlices().add(new MemorySlice(startIndex, startIndex + chatMessages.size(), summary));
+            return unit;
+        }
+
+        @Override
+        public Collection<MemoryUnit> listMemoryUnits() {
+            return units.values();
+        }
+
+        @Override
+        public void refreshMemorySession() {
+        }
+
+        @Override
+        public String getMemorySessionId() {
+            return sessionId;
+        }
+    }
+}

Partner-Core/src/test/java/work/slhaf/partner/module/memory/updater/MemoryUpdaterTest.java

@@ -4,26 +4,21 @@ import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;
 import org.mockito.Mockito;
-import work.slhaf.partner.core.memory.MemoryCapability;
+import work.slhaf.partner.core.cognition.CognitionCapability;
 import work.slhaf.partner.core.memory.pojo.MemorySlice;
 import work.slhaf.partner.core.memory.pojo.MemoryUnit;
+import work.slhaf.partner.framework.agent.exception.AgentRuntimeException;
 import work.slhaf.partner.framework.agent.model.pojo.Message;
 import work.slhaf.partner.framework.agent.support.Result;
+import work.slhaf.partner.module.communication.AfterRollingRegistry;
+import work.slhaf.partner.module.communication.RollingResult;
 import work.slhaf.partner.module.memory.runtime.MemoryRuntime;
-import work.slhaf.partner.module.memory.runtime.exception.MemoryLookupException;
-import work.slhaf.partner.module.memory.updater.summarizer.MultiSummarizer;
-import work.slhaf.partner.module.memory.updater.summarizer.SingleSummarizer;
-import work.slhaf.partner.module.memory.updater.summarizer.entity.SummarizeResult;
+import work.slhaf.partner.module.memory.updater.summarizer.entity.MemoryTopicResult;
 
 import java.lang.reflect.Field;
-import java.lang.reflect.Method;
 import java.nio.file.Path;
-import java.util.Collection;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 
-import static org.junit.jupiter.api.Assertions.*;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
@@ -35,275 +30,89 @@ class MemoryUpdaterTest {
         System.setProperty("user.home", tempDir.toAbsolutePath().toString());
     }
 
-    private static Object invokeUpdateMemory(MemoryUpdater updater, List<Message> chatMessages) throws Exception {
-        Method method = MemoryUpdater.class.getDeclaredMethod("updateMemory", List.class);
-        method.setAccessible(true);
-        return method.invoke(updater, chatMessages);
-    }
-
-    @SuppressWarnings("unchecked")
-    private static List<Message> invokeResolveChatIncrement(MemoryUpdater updater,
-                                                            List<Message> chatMessages) throws Exception {
-        Method method = MemoryUpdater.class.getDeclaredMethod("resolveChatIncrement", List.class);
-        method.setAccessible(true);
-        return (List<Message>) method.invoke(updater, chatMessages);
-    }
-
-    private static String recordField(Object target, String fieldName) throws Exception {
-        Field field = target.getClass().getDeclaredField(fieldName);
-        field.setAccessible(true);
-        return (String) field.get(target);
-    }
-
     private static void setField(Object target, String fieldName, Object value) throws Exception {
         Field field = target.getClass().getDeclaredField(fieldName);
         field.setAccessible(true);
         field.set(target, value);
     }
 
-    private static SummarizeResult summarizeResult(String summary, String topicPath, List<String> relatedTopicPath) {
-        SummarizeResult result = new SummarizeResult();
-        result.setSummary(summary);
-        result.setTopicPath(topicPath);
-        result.setRelatedTopicPath(relatedTopicPath);
-        return result;
-    }
-
     private static Message message(Message.Character role, String content) {
         return new Message(role, content);
     }
 
     @Test
-    void shouldDelegateMemoryUpdateToCapabilityAndRuntime() throws Exception {
-        StubMemoryCapability memoryCapability = new StubMemoryCapability("session-1");
-        MemoryUpdater updater = new MemoryUpdater();
-        MemoryRuntime memoryRuntime = Mockito.mock(MemoryRuntime.class);
-        MultiSummarizer multiSummarizer = Mockito.mock(MultiSummarizer.class);
-        SingleSummarizer singleSummarizer = Mockito.mock(SingleSummarizer.class);
-        setField(updater, "memoryCapability", memoryCapability);
-        setField(updater, "memoryRuntime", memoryRuntime);
-        setField(updater, "multiSummarizer", multiSummarizer);
-        setField(updater, "singleSummarizer", singleSummarizer);
+    void shouldRegisterItselfToAfterRollingRegistryOnInit() throws Exception {
+        MemoryUpdater updater = Mockito.spy(new MemoryUpdater());
+        AfterRollingRegistry registry = Mockito.mock(AfterRollingRegistry.class);
+        setField(updater, "afterRollingRegistry", registry);
 
+        updater.init();
+
+        verify(registry).register(updater);
+    }
+
+    @Test
+    void shouldExtractTopicAndRecordMemoryOnConsume() throws Exception {
+        MemoryUpdater updater = Mockito.spy(new MemoryUpdater());
+        MemoryRuntime memoryRuntime = Mockito.mock(MemoryRuntime.class);
+        CognitionCapability cognitionCapability = Mockito.mock(CognitionCapability.class);
+        setField(updater, "memoryRuntime", memoryRuntime);
+        setField(updater, "cognitionCapability", cognitionCapability);
+
+        when(cognitionCapability.contextWorkspace()).thenReturn(new work.slhaf.partner.core.cognition.ContextWorkspace());
         when(memoryRuntime.getTopicTree()).thenReturn("topic-tree");
-        when(multiSummarizer.execute(Mockito.any())).thenReturn(Result.success(
-                summarizeResult("new-summary", "topic/main", List.of("topic/related"))
+        when(memoryRuntime.fixTopicPath("root[2]->branch[1]")).thenReturn("root->branch");
+        when(memoryRuntime.fixTopicPath("root[2]->related[1]")).thenReturn("root->related");
+
+        MemoryTopicResult topicResult = new MemoryTopicResult();
+        topicResult.setTopicPath("root[2]->branch[1]");
+        topicResult.setRelatedTopicPaths(List.of("root[2]->related[1]"));
+        Mockito.doReturn(Result.success(topicResult))
+                .when(updater)
+                .formattedChat(Mockito.anyList(), eq(MemoryTopicResult.class));
+
+        MemoryUnit unit = new MemoryUnit("session-1");
+        unit.getConversationMessages().addAll(List.of(
+                message(Message.Character.USER, "old"),
+                message(Message.Character.ASSISTANT, "old-reply"),
+                message(Message.Character.USER, "new"),
+                message(Message.Character.ASSISTANT, "new-reply")
         ));
+        MemorySlice slice = new MemorySlice(2, 4, "slice-summary");
+        unit.getSlices().add(slice);
 
-        MemoryUnit existingUnit = new MemoryUnit("session-1");
-        existingUnit.getConversationMessages().addAll(List.of(
-                message(Message.Character.USER, "old-user"),
-                message(Message.Character.ASSISTANT, "old-assistant")
-        ));
-        existingUnit.getSlices().add(MemorySlice.restore("slice-1", 0, 2, "old-summary", 1L));
-        memoryCapability.putUnit(existingUnit);
+        updater.consume(new RollingResult(unit, slice, List.of(
+                message(Message.Character.USER, "new"),
+                message(Message.Character.ASSISTANT, "new-reply")
+        ), "slice-summary", 4, 6));
 
-        Object rollingRecord = invokeUpdateMemory(updater, List.of(
-                message(Message.Character.USER, "new-user"),
-                message(Message.Character.ASSISTANT, "new-assistant")
-        ));
-
-        MemoryUnit merged = memoryCapability.getMemoryUnit("session-1");
-        assertEquals(List.of("old-user", "old-assistant", "new-user", "new-assistant"),
-                merged.getConversationMessages().stream().map(Message::getContent).toList());
-        assertEquals(2, merged.getSlices().size());
-
-        MemorySlice appendedSlice = merged.getSlices().getLast();
-        assertNotNull(appendedSlice.getId());
-        assertEquals(2, appendedSlice.getStartIndex());
-        assertEquals(4, appendedSlice.getEndIndex());
-        assertEquals("new-summary", appendedSlice.getSummary());
-
-        assertEquals(List.of("new-user", "new-assistant"),
-                memoryCapability.lastChatMessages().stream().map(Message::getContent).toList());
-        assertEquals("new-summary", memoryCapability.lastSummary());
-        verify(memoryRuntime).recordMemory(eq(merged), eq("topic/main"), eq(List.of("topic/related")));
-        assertEquals("session-1", recordField(rollingRecord, "unitId"));
-        assertEquals(appendedSlice.getId(), recordField(rollingRecord, "sliceId"));
-        assertEquals("new-summary", recordField(rollingRecord, "summary"));
+        verify(memoryRuntime).recordMemory(eq(unit), eq("root->branch"), eq(List.of("root->related")));
     }
 
     @Test
-    void shouldCreateFirstSliceForFreshSessionThroughCapability() throws Exception {
-        StubMemoryCapability memoryCapability = new StubMemoryCapability("session-2");
-        MemoryUpdater updater = new MemoryUpdater();
+    void shouldFallbackToDateOnlyRecordWhenExtractionFails() throws Exception {
+        MemoryUpdater updater = Mockito.spy(new MemoryUpdater());
         MemoryRuntime memoryRuntime = Mockito.mock(MemoryRuntime.class);
-        MultiSummarizer multiSummarizer = Mockito.mock(MultiSummarizer.class);
-        SingleSummarizer singleSummarizer = Mockito.mock(SingleSummarizer.class);
-        setField(updater, "memoryCapability", memoryCapability);
+        CognitionCapability cognitionCapability = Mockito.mock(CognitionCapability.class);
         setField(updater, "memoryRuntime", memoryRuntime);
-        setField(updater, "multiSummarizer", multiSummarizer);
-        setField(updater, "singleSummarizer", singleSummarizer);
+        setField(updater, "cognitionCapability", cognitionCapability);
 
+        when(cognitionCapability.contextWorkspace()).thenReturn(new work.slhaf.partner.core.cognition.ContextWorkspace());
         when(memoryRuntime.getTopicTree()).thenReturn("topic-tree");
-        when(multiSummarizer.execute(Mockito.any())).thenReturn(Result.success(
-                summarizeResult("fresh-summary", "topic/root", List.of())
+        Mockito.doReturn(Result.failure(new AgentRuntimeException("boom")))
+                .when(updater)
+                .formattedChat(Mockito.anyList(), eq(MemoryTopicResult.class));
+
+        MemoryUnit unit = new MemoryUnit("session-2");
+        unit.getConversationMessages().addAll(List.of(
+                message(Message.Character.USER, "u1"),
+                message(Message.Character.ASSISTANT, "a1")
         ));
+        MemorySlice slice = new MemorySlice(0, 2, "slice-summary");
+        unit.getSlices().add(slice);
 
-        Object rollingRecord = invokeUpdateMemory(updater, List.of(
-                message(Message.Character.USER, "first"),
-                message(Message.Character.ASSISTANT, "second")
-        ));
+        updater.consume(new RollingResult(unit, slice, unit.getConversationMessages(), "slice-summary", 2, 6));
 
-        MemoryUnit created = memoryCapability.getMemoryUnit("session-2");
-        assertNotNull(created);
-        assertEquals("session-2", created.getId());
-        assertEquals(List.of("first", "second"),
-                created.getConversationMessages().stream().map(Message::getContent).toList());
-        assertEquals(1, created.getSlices().size());
-        assertEquals(0, created.getSlices().getFirst().getStartIndex());
-        assertEquals(2, created.getSlices().getFirst().getEndIndex());
-        assertEquals("fresh-summary", created.getSlices().getFirst().getSummary());
-        verify(memoryRuntime).recordMemory(eq(created), eq("topic/root"), eq(List.of()));
-        assertEquals("session-2", recordField(rollingRecord, "unitId"));
-        assertEquals(created.getSlices().getFirst().getId(), recordField(rollingRecord, "sliceId"));
-        assertEquals("fresh-summary", recordField(rollingRecord, "summary"));
-    }
-
-    @Test
-    void shouldTrimPersistedOverlapFromCurrentSnapshot() throws Exception {
-        StubMemoryCapability memoryCapability = new StubMemoryCapability("session-3");
-        MemoryUpdater updater = new MemoryUpdater();
-        setField(updater, "memoryCapability", memoryCapability);
-
-        MemoryUnit existingUnit = Mockito.mock(MemoryUnit.class);
-        when(existingUnit.getConversationMessages()).thenReturn(List.of(
-                message(Message.Character.USER, "m1"),
-                message(Message.Character.ASSISTANT, "m2"),
-                message(Message.Character.USER, "m3"),
-                message(Message.Character.ASSISTANT, "m4")
-        ));
-        memoryCapability.putUnit("session-3", existingUnit);
-
-        List<Message> increment = invokeResolveChatIncrement(
-                updater,
-                List.of(
-                        message(Message.Character.USER, "m3"),
-                        message(Message.Character.ASSISTANT, "m4"),
-                        message(Message.Character.USER, "m5"),
-                        message(Message.Character.ASSISTANT, "m6")
-                )
-        );
-
-        assertEquals(List.of("m5", "m6"), increment.stream().map(Message::getContent).toList());
-    }
-
-    @Test
-    void shouldReturnEmptyIncrementWhenSnapshotIsFullyPersisted() throws Exception {
-        StubMemoryCapability memoryCapability = new StubMemoryCapability("session-4");
-        MemoryUpdater updater = new MemoryUpdater();
-        setField(updater, "memoryCapability", memoryCapability);
-
-        MemoryUnit existingUnit = Mockito.mock(MemoryUnit.class);
-        when(existingUnit.getConversationMessages()).thenReturn(List.of(
-                message(Message.Character.USER, "m1"),
-                message(Message.Character.ASSISTANT, "m2"),
-                message(Message.Character.USER, "m3")
-        ));
-        memoryCapability.putUnit("session-4", existingUnit);
-
-        List<Message> increment = invokeResolveChatIncrement(
-                updater,
-                List.of(
-                        message(Message.Character.ASSISTANT, "m2"),
-                        message(Message.Character.USER, "m3")
-                )
-        );
-
-        assertEquals(List.of(), increment);
-    }
-
-    @Test
-    void shouldReturnNullWhenUpdateMemoryReceivesEmptySnapshot() throws Exception {
-        StubMemoryCapability memoryCapability = new StubMemoryCapability("session-5");
-        MemoryUpdater updater = new MemoryUpdater();
-        MemoryRuntime memoryRuntime = Mockito.mock(MemoryRuntime.class);
-        setField(updater, "memoryCapability", memoryCapability);
-        setField(updater, "memoryRuntime", memoryRuntime);
-
-        Object rollingRecord = invokeUpdateMemory(updater, List.of());
-
-        assertNull(rollingRecord);
-        assertNull(memoryCapability.lastSummary());
-        Mockito.verifyNoInteractions(memoryRuntime);
-    }
-
-    private static final class StubMemoryCapability implements MemoryCapability {
-        private final String sessionId;
-        private final Map<String, MemoryUnit> units = new HashMap<>();
-        private List<Message> lastChatMessages;
-        private String lastSummary;
-
-        private StubMemoryCapability(String sessionId) {
-            this.sessionId = sessionId;
-        }
-
-        private void putUnit(String unitId, MemoryUnit memoryUnit) {
-            units.put(unitId, memoryUnit);
-        }
-
-        private void putUnit(MemoryUnit memoryUnit) {
-            units.put(memoryUnit.getId(), memoryUnit);
-        }
-
-        private List<Message> lastChatMessages() {
-            return lastChatMessages;
-        }
-
-        private String lastSummary() {
-            return lastSummary;
-        }
-
-        @Override
-        public MemoryUnit getMemoryUnit(String unitId) {
-            return units.get(unitId);
-        }
-
-        @Override
-        public Result<MemorySlice> getMemorySlice(String unitId, String sliceId) {
-            MemoryUnit unit = units.get(unitId);
-            if (unit == null || unit.getSlices() == null) {
-                return Result.failure(new MemoryLookupException(
-                        "Memory slice not found: " + unitId + ":" + sliceId,
-                        unitId + ":" + sliceId,
-                        "MEMORY_SLICE"
-                ));
-            }
-            return unit.getSlices().stream()
-                    .filter(slice -> sliceId.equals(slice.getId()))
-                    .findFirst()
-                    .map(Result::success)
-                    .orElseGet(() -> Result.failure(new MemoryLookupException(
-                            "Memory slice not found: " + unitId + ":" + sliceId,
-                            unitId + ":" + sliceId,
-                            "MEMORY_SLICE"
-                    )));
-        }
-
-        @Override
-        public MemoryUnit updateMemoryUnit(List<Message> chatMessages, String summary) {
-            lastChatMessages = List.copyOf(chatMessages);
-            lastSummary = summary;
-            MemoryUnit unit = units.computeIfAbsent(sessionId, MemoryUnit::new);
-            unit.updateTimestamp();
-            int startIndex = unit.getConversationMessages().size();
-            unit.getConversationMessages().addAll(chatMessages);
-            unit.getSlices().add(new MemorySlice(startIndex, startIndex + chatMessages.size(), summary));
-            return unit;
-        }
-
-        @Override
-        public Collection<MemoryUnit> listMemoryUnits() {
-            return units.values();
-        }
-
-        @Override
-        public void refreshMemorySession() {
-        }
-
-        @Override
-        public String getMemorySessionId() {
-            return sessionId;
-        }
+        verify(memoryRuntime).recordMemory(eq(unit), eq(null), eq(List.of()));
     }
 }