feat(agent): expand tool registry — file, git, shell, web fetch (#126) (#138)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

apps/gateway/src/agent/agent.service.ts

@@ -16,6 +16,10 @@ import { ProviderService } from './provider.service.js';
 import { createBrainTools } from './tools/brain-tools.js';
 import { createCoordTools } from './tools/coord-tools.js';
 import { createMemoryTools } from './tools/memory-tools.js';
+import { createFileTools } from './tools/file-tools.js';
+import { createGitTools } from './tools/git-tools.js';
+import { createShellTools } from './tools/shell-tools.js';
+import { createWebTools } from './tools/web-tools.js';
 import type { SessionInfoDto } from './session.dto.js';
 
 export interface AgentSessionOptions {
@@ -50,10 +54,18 @@ export class AgentService implements OnModuleDestroy {
     @Inject(EmbeddingService) private readonly embeddingService: EmbeddingService,
     @Inject(CoordService) private readonly coordService: CoordService,
   ) {
+    const fileBaseDir = process.env['AGENT_FILE_SANDBOX_DIR'] ?? process.cwd();
+    const gitDefaultCwd = process.env['AGENT_GIT_CWD'] ?? process.cwd();
+    const shellDefaultCwd = process.env['AGENT_SHELL_CWD'] ?? process.cwd();
+
     this.customTools = [
       ...createBrainTools(brain),
       ...createCoordTools(coordService),
       ...createMemoryTools(memory, embeddingService.available ? embeddingService : null),
+      ...createFileTools(fileBaseDir),
+      ...createGitTools(gitDefaultCwd),
+      ...createShellTools(shellDefaultCwd),
+      ...createWebTools(),
     ];
     this.logger.log(`Registered ${this.customTools.length} custom tools`);
   }