Compaction: preserve opaque identifiers in summaries (openclaw#25553) thanks @rodrigouroz

Verified:
- pnpm install --frozen-lockfile
- pnpm build
- pnpm check
- pnpm test:macmini

Co-authored-by: rodrigouroz <384037+rodrigouroz@users.noreply.github.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

src/agents/pi-extensions/compaction-safeguard-runtime.ts

@@ -1,9 +1,12 @@
 import type { Api, Model } from "@mariozechner/pi-ai";
+import type { AgentCompactionIdentifierPolicy } from "../../config/types.agent-defaults.js";
 import { createSessionManagerRuntimeRegistry } from "./session-manager-runtime-registry.js";
 
 export type CompactionSafeguardRuntimeValue = {
   maxHistoryShare?: number;
   contextWindowTokens?: number;
+  identifierPolicy?: AgentCompactionIdentifierPolicy;
+  identifierInstructions?: string;
   /**
    * Model to use for compaction summarization.
    * Passed through runtime because `ctx.model` is undefined in the compact.ts workflow

src/agents/pi-extensions/compaction-safeguard.ts

@@ -212,6 +212,10 @@ export default function compactionSafeguardExtension(api: ExtensionAPI): void {
     // Model resolution: ctx.model is undefined in compact.ts workflow (extensionRunner.initialize() is never called).
     // Fall back to runtime.model which is explicitly passed when building extension paths.
     const runtime = getCompactionSafeguardRuntime(ctx.sessionManager);
+    const summarizationInstructions = {
+      identifierPolicy: runtime?.identifierPolicy,
+      identifierInstructions: runtime?.identifierInstructions,
+    };
     const model = ctx.model ?? runtime?.model;
     if (!model) {
       // Log warning once per session when both models are missing (diagnostic for future issues).
@@ -295,6 +299,7 @@ export default function compactionSafeguardExtension(api: ExtensionAPI): void {
                   maxChunkTokens: droppedMaxChunkTokens,
                   contextWindow: contextWindowTokens,
                   customInstructions,
+                  summarizationInstructions,
                   previousSummary: preparation.previousSummary,
                 });
               } catch (droppedError) {
@@ -333,6 +338,7 @@ export default function compactionSafeguardExtension(api: ExtensionAPI): void {
         maxChunkTokens,
         contextWindow: contextWindowTokens,
         customInstructions,
+        summarizationInstructions,
         previousSummary: effectivePreviousSummary,
       });
 
@@ -347,6 +353,7 @@ export default function compactionSafeguardExtension(api: ExtensionAPI): void {
           maxChunkTokens,
           contextWindow: contextWindowTokens,
           customInstructions: TURN_PREFIX_INSTRUCTIONS,
+          summarizationInstructions,
           previousSummary: undefined,
         });
         summary = `${historySummary}\n\n---\n\n**Turn Context (split turn):**\n\n${prefixSummary}`;