feat(memory): persist auto-memory scratchpad for skill extraction (#25873)

packages/core/src/agents/local-executor.ts

@@ -779,6 +779,8 @@ export class LocalAgentExecutor<TOutput extends z.ZodTypeAny> {
         return {
           result: finalResult || 'Task completed.',
           terminate_reason: terminateReason,
+          turn_count: turnCounter,
+          duration_ms: Date.now() - startTime,
         };
       }
 
@@ -786,6 +788,8 @@ export class LocalAgentExecutor<TOutput extends z.ZodTypeAny> {
         result:
           finalResult || 'Agent execution was terminated before completion.',
         terminate_reason: terminateReason,
+        turn_count: turnCounter,
+        duration_ms: Date.now() - startTime,
       };
     } catch (error) {
       // Check if the error is an AbortError caused by our internal timeout.
@@ -826,6 +830,8 @@ export class LocalAgentExecutor<TOutput extends z.ZodTypeAny> {
             return {
               result: finalResult,
               terminate_reason: terminateReason,
+              turn_count: turnCounter,
+              duration_ms: Date.now() - startTime,
             };
           }
         }
@@ -840,6 +846,8 @@ export class LocalAgentExecutor<TOutput extends z.ZodTypeAny> {
         return {
           result: finalResult,
           terminate_reason: terminateReason,
+          turn_count: turnCounter,
+          duration_ms: Date.now() - startTime,
         };
       }
 

packages/core/src/agents/skill-extraction-agent.test.ts

@@ -74,12 +74,14 @@ describe('SkillExtractionAgent', () => {
 
     expect(query).toContain(existingSkillsSummary);
     expect(query).toContain(sessionIndex);
+    expect(query).toContain('optional workflow hint');
     expect(query).toContain(
-      'The summary is a user-intent summary, not a workflow summary.',
+      'workflow hints alone is never enough evidence for a reusable skill.',
     );
     expect(query).toContain(
-      'The session summaries describe user intent, not workflow details.',
+      'Session summaries describe user intent; optional workflow hints describe likely procedural traces.',
     );
+    expect(query).toContain('Use workflow hints for routing');
     expect(query).toContain(
       'Only write a skill if the evidence shows a durable, recurring workflow',
     );

packages/core/src/agents/skill-extraction-agent.ts

@@ -303,10 +303,11 @@ export const SkillExtractionAgent = (
         '# Session Index',
         '',
         'Below is an index of past conversation sessions. Each line shows:',
-        '[NEW] or [old] status, a 1-line summary, message count, and the file path.',
+        '[NEW] or [old] status, a 1-line user-intent summary, optional workflow hint, message count, and the file path.',
         '',
-        'The summary is a user-intent summary, not a workflow summary.',
-        'Matching summary text alone is never enough evidence for a reusable skill.',
+        'Some lines may include "| workflow: ..."; this is a compact workflow hint from session metadata.',
+        'Use workflow hints to prioritize which sessions to read and to group likely recurring workflows.',
+        'Matching summary text or workflow hints alone is never enough evidence for a reusable skill.',
         '',
         '[NEW] = not yet processed for skill extraction (focus on these)',
         '[old] = previously processed (read only if a [NEW] session hints at a repeated pattern)',
@@ -326,7 +327,7 @@ export const SkillExtractionAgent = (
 
     return {
       systemPrompt: buildSystemPrompt(skillsDir),
-      query: `${initialContext}\n\nAnalyze the session index above. The session summaries describe user intent, not workflow details. Read sessions that suggest repeated workflows using read_file. Only write a skill if the evidence shows a durable, recurring workflow or a stable recurring repo procedure. If recurrence or future reuse is unclear, create no skill and explain why.`,
+      query: `${initialContext}\n\nAnalyze the session index above. Session summaries describe user intent; optional workflow hints describe likely procedural traces. Use workflow hints for routing, then read sessions that suggest repeated workflows using read_file to verify recurrence from transcript evidence. Only write a skill if the evidence shows a durable, recurring workflow or a stable recurring repo procedure. If recurrence or future reuse is unclear, create no skill and explain why.`,
     };
   },
   runConfig: {

packages/core/src/agents/types.ts

@@ -36,6 +36,8 @@ export enum AgentTerminateMode {
 export interface OutputObject {
   result: string;
   terminate_reason: AgentTerminateMode;
+  turn_count?: number;
+  duration_ms?: number;
 }
 
 /**