Task link MCP tools + anti-loop agent prompts

Tools: create_task_link, list_task_links, delete_task_link (23 total)
TrackerClient.request() made public for generic API calls
Agent prompts: anti-loop rules for agent-to-agent communication

src/tools/index.ts

@@ -6,6 +6,7 @@ import { createMessageTools } from './messages.js';
 import { createProjectTools } from './projects.js';
 import { createMemberTools } from './members.js';
 import { createFileTools } from './files.js';
+import { taskLinkTools } from './tasks.js';
 
 /**
  * Create all Team Board tracker tools for the agent.
@@ -19,6 +20,7 @@ export function createTrackerTools(ctx: ToolContext): ToolDefinition[] {
     ...createProjectTools(ctx),
     ...createMemberTools(ctx),
     ...createFileTools(ctx),
+    ...taskLinkTools(ctx),
   ];
 }
 

src/tools/tasks.ts

@@ -127,3 +127,58 @@ export function createTaskTools(ctx: ToolContext): ToolDefinition<any>[] {
     },
   ];
 }
+
+// --- Task Links ---
+
+const CreateTaskLinkParams = Type.Object({
+  task_id: Type.String({ description: 'Source task ID (UUID)' }),
+  target_id: Type.String({ description: 'Target task ID (UUID)' }),
+  link_type: Type.String({ description: 'Link type: blocks | depends_on | relates_to' }),
+});
+
+const ListTaskLinksParams = Type.Object({
+  task_id: Type.String({ description: 'Task ID (UUID)' }),
+});
+
+const DeleteTaskLinkParams = Type.Object({
+  task_id: Type.String({ description: 'Task ID (UUID)' }),
+  link_id: Type.String({ description: 'Link ID (UUID)' }),
+});
+
+export function taskLinkTools(ctx: ToolContext): ToolDefinition<any>[] {
+  return [
+    {
+      name: 'create_task_link',
+      label: 'Create Task Link',
+      description: 'Create a dependency/link between tasks. Types: blocks (source blocks target), depends_on (source depends on target), relates_to (informational).',
+      parameters: CreateTaskLinkParams,
+      async execute(_id: string, params: any) {
+        const { task_id, target_id, link_type } = params as { task_id: string; target_id: string; link_type: string };
+        const resp = await ctx.trackerClient.request('POST', `/api/v1/tasks/${task_id}/links`, { target_id, link_type });
+        return ok(JSON.stringify(resp));
+      },
+    },
+    {
+      name: 'list_task_links',
+      label: 'List Task Links',
+      description: 'List all dependencies/links for a task. Shows both outgoing (this task blocks/depends_on) and incoming (blocked_by/required_by) links.',
+      parameters: ListTaskLinksParams,
+      async execute(_id: string, params: any) {
+        const { task_id } = params as { task_id: string };
+        const resp = await ctx.trackerClient.request('GET', `/api/v1/tasks/${task_id}/links`);
+        return ok(JSON.stringify(resp));
+      },
+    },
+    {
+      name: 'delete_task_link',
+      label: 'Delete Task Link',
+      description: 'Remove a dependency/link between tasks.',
+      parameters: DeleteTaskLinkParams,
+      async execute(_id: string, params: any) {
+        const { task_id, link_id } = params as { task_id: string; link_id: string };
+        const resp = await ctx.trackerClient.request('DELETE', `/api/v1/tasks/${task_id}/links/${link_id}`);
+        return ok(JSON.stringify(resp));
+      },
+    },
+  ];
+}

src/tracker/client.ts

@@ -17,7 +17,7 @@ export class TrackerClient {
     private token: string,
   ) {}
 
-  private async request<T>(method: string, path: string, body?: unknown): Promise<T> {
+  async request<T>(method: string, path: string, body?: unknown): Promise<T> {
     const url = `${this.baseUrl}${path}`;
     this.log.info('  REST %s %s', method, path);
     if (body) this.log.info('  body: %s', JSON.stringify(body).slice(0, 300));