[WIP] Draft PR for the idea of integration tests

[hev]

A bit of a strawman of how to approach #34

[Copilot]

Pull Request Overview

A draft PR that introduces integration testing for the MCP ping server and a Claude API flow, plus adds an example “Taffrail” tool.

• Adds test data and integration suites for ping and Claude flows
• Updates ping.test.ts to inject a ConsoleLogger and emit debug logs
• Introduces a new example tool (taffrail) with HTTP clients, logging, and URL shortening

Reviewed Changes

Copilot reviewed 10 out of 14 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/testdata/integrationQuestions.data.ts	Adds question/URL pairs for integration tests
src/server/ping.test.ts	Injects ConsoleLogger and adds console logging
src/tests/claudeIntegration.test.ts	New end-to-end tests against Claude via the MCP server
package.json	Adds @anthropic-ai/sdk, dotenv to devDependencies
examples/taffrail/tsconfig.json	Configures the Taffrail example TypeScript project
examples/taffrail/src/taffrail.ts	Implements rules/advice fetcher with URL shortening
examples/taffrail/src/index.ts	Registers Taffrail tool, wires MCP server & transport
examples/taffrail/package.json	Defines dependencies for the Taffrail example
examples/taffrail/README.md	Documents simple ping-server usage
examples/ping-server/src/index.ts	Adds detailed request/response logging for /mcp

Files not reviewed (2)

• examples/ping-server/package-lock.json: Language not supported
• examples/taffrail/package-lock.json: Language not supported

[Copilot]

[nitpick] Consider removing or replacing this debug console.log with a test‐scoped logger to keep test output clean and focused.

Suggested change

	console.log("Sending ping request to MCPServer...");
	server.logger.info("Sending ping request to MCPServer...");

[Copilot]

[nitpick] Verbose logging inside a tight loop can clutter CI logs; consider using a debug flag or jest’s built‐in logging utilities instead.

Suggested change

	console.log(`ping-server stdout: ${data}`);
	if (process.env.DEBUG === 'true') {
	console.log(`ping-server stdout: ${data}`);
	}

[Copilot]

Logging portions of your API key, even just the suffix, can leak sensitive credentials; remove or redact this in production code.

Suggested change

	const apiKeySuffix = TAFFRAIL_API_KEY ? TAFFRAIL_API_KEY.slice(-6) : 'undefined';
	console.error(`[Taffrail] Response status: ${response.status}, API key (last 6): ...${apiKeySuffix}`);
	console.error(`[Taffrail] Response status: ${response.status}`);

[Copilot]

If shareUrl is null, this POST will send long_url: null and likely error; add a guard to skip shortening when shareUrl is missing.

Suggested change

	// now shorten the share URL
	// now shorten the share URL
	if (!shareUrl) {
	console.error("[Taffrail] shareUrl is null, skipping URL shortening.");
	return { url: null, headlines };
	}