feat(mcp): add scenario tools and fix per-request server lifecycle
- add list_scenarios, get_scenario, create_scenario, update_scenario, delete_scenario - add create_scenario_step, get_scenario_step, update_scenario_step, delete_scenario_step - add list_scenario_runs, run_scenario - import ScenarioModule into McpModule so ScenarioService is injectable - move tool registration to private registerTools(server) method; create fresh McpServer per request in handle() to satisfy SDK one-connection rule - fix mcp.controller.spec: parse SSE data line instead of res.body; assert exact status 200 everywhere; remove vague toBeLessThan(500) guards
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+222
-2
@@ -9,6 +9,7 @@ import { EnvironmentService } from '../environment/environment.service';
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import type { EnvironmentUrls } from '../environment/environment.entity';
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import { BrowserService } from '../browser/browser.service';
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import { CodeExecutorService } from '../code-executor/code-executor.service';
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import { ScenarioService } from '../scenario/scenario.service';
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@Injectable()
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export class McpService {
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@@ -18,10 +19,10 @@ export class McpService {
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private readonly environmentService: EnvironmentService,
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private readonly browserService: BrowserService,
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private readonly codeExecutor: CodeExecutorService,
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private readonly scenarioService: ScenarioService,
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) {}
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async handle(req: Request, res: Response): Promise<void> {
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const server = new McpServer({ name: 'liquio-qa-bot', version: '1.0.0' });
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private registerTools(server: McpServer): void {
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// ── Auth ──────────────────────────────────────────────────────────────────
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@@ -208,7 +209,226 @@ export class McpService {
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},
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);
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// ── Scenarios ─────────────────────────────────────────────────────────────
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server.registerTool(
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'list_scenarios',
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{
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description: 'List all scenarios (paginated)',
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inputSchema: {
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page: z.number().int().min(1).optional().describe('Page number (default 1)'),
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limit: z.number().int().min(1).optional().describe('Items per page (default 20)'),
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},
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},
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async ({ page, limit }) => {
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const result = await this.scenarioService.findAll({ page, limit });
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return { content: [{ type: 'text' as const, text: JSON.stringify(result) }] };
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},
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);
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server.registerTool(
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'get_scenario',
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{
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description: 'Get a scenario with its steps by ID',
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inputSchema: {
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id: z.number().int().describe('Scenario ID'),
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},
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},
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async ({ id }) => {
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try {
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const scenario = await this.scenarioService.findOne(id);
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return { content: [{ type: 'text' as const, text: JSON.stringify(scenario) }] };
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} catch (err) {
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return { isError: true, content: [{ type: 'text' as const, text: (err as Error).message }] };
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}
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},
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);
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server.registerTool(
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'create_scenario',
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{
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description: 'Create a new scenario',
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inputSchema: {
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name: z.string().describe('Scenario name'),
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},
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},
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async ({ name }) => {
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try {
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const scenario = await this.scenarioService.create({ name });
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return { content: [{ type: 'text' as const, text: JSON.stringify(scenario) }] };
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} catch (err) {
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return { isError: true, content: [{ type: 'text' as const, text: (err as Error).message }] };
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}
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},
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);
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server.registerTool(
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'update_scenario',
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{
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description: 'Update a scenario name',
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inputSchema: {
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id: z.number().int().describe('Scenario ID'),
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name: z.string().optional().describe('New name'),
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},
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},
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async ({ id, name }) => {
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try {
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const scenario = await this.scenarioService.update(id, { name });
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return { content: [{ type: 'text' as const, text: JSON.stringify(scenario) }] };
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} catch (err) {
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return { isError: true, content: [{ type: 'text' as const, text: (err as Error).message }] };
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}
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},
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);
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server.registerTool(
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'delete_scenario',
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{
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description: 'Delete a scenario by ID',
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inputSchema: {
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id: z.number().int().describe('Scenario ID'),
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},
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},
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async ({ id }) => {
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try {
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await this.scenarioService.remove(id);
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return { content: [{ type: 'text' as const, text: `Scenario ${id} deleted` }] };
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} catch (err) {
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return { isError: true, content: [{ type: 'text' as const, text: (err as Error).message }] };
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}
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},
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);
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server.registerTool(
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'create_scenario_step',
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{
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description: 'Add a step to a scenario',
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inputSchema: {
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scenarioId: z.number().int().describe('Parent scenario ID'),
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order: z.number().int().min(0).describe('Execution order (ascending)'),
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type: z.enum(['login', 'exec']).describe('Step type'),
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sessionName: z.string().describe('Session name used by this step'),
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execCode: z.string().optional().describe('Playwright JS code to execute (exec steps)'),
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validateCode: z.string().optional().describe('Validation JS code returning { success, description }'),
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},
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},
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async ({ scenarioId, ...dto }) => {
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try {
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const step = await this.scenarioService.createStep(scenarioId, dto);
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return { content: [{ type: 'text' as const, text: JSON.stringify(step) }] };
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} catch (err) {
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return { isError: true, content: [{ type: 'text' as const, text: (err as Error).message }] };
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}
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},
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);
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server.registerTool(
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'get_scenario_step',
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{
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description: 'Get a single step of a scenario',
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inputSchema: {
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scenarioId: z.number().int().describe('Scenario ID'),
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stepId: z.number().int().describe('Step ID'),
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},
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},
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async ({ scenarioId, stepId }) => {
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try {
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const step = await this.scenarioService.findStep(scenarioId, stepId);
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return { content: [{ type: 'text' as const, text: JSON.stringify(step) }] };
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} catch (err) {
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return { isError: true, content: [{ type: 'text' as const, text: (err as Error).message }] };
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}
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},
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);
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server.registerTool(
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'update_scenario_step',
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{
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description: 'Update a step within a scenario',
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inputSchema: {
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scenarioId: z.number().int().describe('Scenario ID'),
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stepId: z.number().int().describe('Step ID'),
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order: z.number().int().min(0).optional().describe('New execution order'),
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type: z.enum(['login', 'exec']).optional().describe('New step type'),
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sessionName: z.string().optional().describe('New session name'),
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execCode: z.string().optional().describe('New exec code'),
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validateCode: z.string().optional().describe('New validation code'),
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},
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},
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async ({ scenarioId, stepId, ...dto }) => {
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try {
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const step = await this.scenarioService.updateStep(scenarioId, stepId, dto);
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return { content: [{ type: 'text' as const, text: JSON.stringify(step) }] };
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} catch (err) {
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return { isError: true, content: [{ type: 'text' as const, text: (err as Error).message }] };
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}
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},
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);
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server.registerTool(
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'delete_scenario_step',
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{
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description: 'Delete a step from a scenario',
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inputSchema: {
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scenarioId: z.number().int().describe('Scenario ID'),
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stepId: z.number().int().describe('Step ID'),
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},
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},
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async ({ scenarioId, stepId }) => {
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try {
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await this.scenarioService.removeStep(scenarioId, stepId);
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return { content: [{ type: 'text' as const, text: `Step ${stepId} deleted from scenario ${scenarioId}` }] };
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} catch (err) {
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return { isError: true, content: [{ type: 'text' as const, text: (err as Error).message }] };
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}
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},
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);
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server.registerTool(
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'list_scenario_runs',
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{
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description: 'List runs for a scenario (paginated, optionally filtered by status)',
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inputSchema: {
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scenarioId: z.number().int().describe('Scenario ID'),
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status: z.enum(['pending', 'in_progress', 'pass', 'fail']).optional().describe('Filter by run status'),
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page: z.number().int().min(1).optional().describe('Page number (default 1)'),
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limit: z.number().int().min(1).optional().describe('Items per page (default 20)'),
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},
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},
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async ({ scenarioId, status, page, limit }) => {
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try {
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const result = await this.scenarioService.findRuns(scenarioId, { status, page, limit });
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return { content: [{ type: 'text' as const, text: JSON.stringify(result) }] };
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} catch (err) {
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return { isError: true, content: [{ type: 'text' as const, text: (err as Error).message }] };
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}
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},
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);
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server.registerTool(
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'run_scenario',
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{
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description: 'Trigger an immediate run of a scenario by ID',
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inputSchema: {
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id: z.number().int().describe('Scenario ID to run'),
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},
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},
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async ({ id }) => {
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try {
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const run = await this.scenarioService.createRun(id);
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return { content: [{ type: 'text' as const, text: JSON.stringify(run) }] };
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} catch (err) {
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return { isError: true, content: [{ type: 'text' as const, text: (err as Error).message }] };
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}
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},
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);
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// ── Transport ─────────────────────────────────────────────────────────────
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}
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async handle(req: Request, res: Response): Promise<void> {
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const server = new McpServer({ name: 'liquio-qa-bot', version: '1.0.0' });
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this.registerTools(server);
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const transport = new StreamableHTTPServerTransport({
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sessionIdGenerator: undefined, // stateless — no session management
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