De-dupe hashing code.

packages/core/src/agents/acknowledgedAgents.test.ts

@@ -94,4 +94,13 @@ describe('AcknowledgedAgentsService', () => {
       false,
     );
   });
+
+  it('should compute consistent hashes', () => {
+    const content = 'some content';
+    const hash = AcknowledgedAgentsService.computeHash(content);
+    expect(hash).toBe(AcknowledgedAgentsService.computeHash(content));
+    expect(hash).not.toBe(
+      AcknowledgedAgentsService.computeHash('other content'),
+    );
+  });
 });

packages/core/src/agents/acknowledgedAgents.ts

@@ -6,6 +6,7 @@
 
 import * as fs from 'node:fs/promises';
 import * as path from 'node:path';
+import * as crypto from 'node:crypto';
 import { Storage } from '../config/storage.js';
 import { debugLogger } from '../utils/debugLogger.js';
 import { getErrorMessage, isNodeError } from '../utils/errors.js';
@@ -21,6 +22,10 @@ export class AcknowledgedAgentsService {
   private acknowledgedAgents: AcknowledgedAgentsMap = {};
   private loaded = false;
 
+  static computeHash(content: string): string {
+    return crypto.createHash('sha256').update(content).digest('hex');
+  }
+
   async load(): Promise<void> {
     if (this.loaded) return;
 

packages/core/src/agents/agentLoader.ts

@@ -8,8 +8,8 @@ import yaml from 'js-yaml';
 import * as fs from 'node:fs/promises';
 import { type Dirent } from 'node:fs';
 import * as path from 'node:path';
-import * as crypto from 'node:crypto';
 import { z } from 'zod';
+import { AcknowledgedAgentsService } from './acknowledgedAgents.js';
 import type { AgentDefinition } from './types.js';
 import { isValidToolName } from '../tools/tool-names.js';
 import { FRONTMATTER_REGEX } from '../skills/skillLoader.js';
@@ -347,7 +347,7 @@ export async function loadAgentsFromDirectory(
     const filePath = path.join(dir, entry.name);
     try {
       const content = await fs.readFile(filePath, 'utf-8');
-      const hash = crypto.createHash('sha256').update(content).digest('hex');
+      const hash = AcknowledgedAgentsService.computeHash(content);
       const agentDefs = await parseAgentMarkdown(filePath, content);
       for (const def of agentDefs) {
         const agent = markdownToAgentDefinition(def, { hash, filePath });