diff --git a/src/index.test.ts b/src/index.test.ts
deleted file mode 100644
index 8d5c509..0000000
--- a/src/index.test.ts
+++ /dev/null
@@ -1,203 +0,0 @@
-import { describe, it, expect, vi } from 'vitest';
-import type { StatisticsTotals, VisitorsPoint } from './types.js';
-
-process.env.PIRSCH_CLIENT_ID = process.env.PIRSCH_CLIENT_ID || 'test-client-id';
-process.env.PIRSCH_CLIENT_SECRET = process.env.PIRSCH_CLIENT_SECRET || 'test-client-secret';
-
-const { getComparisonResponse, getLocalPathPrefix, getPathFilteredStatistics, normalizeFilterArgs } = await import('./index.js');
-
-describe('getComparisonResponse', () => {
-  it('uses statistics/total for totals and statistics/visitor for chart series', async () => {
-    const currentTotals: StatisticsTotals = {
-      visitors: 100,
-      views: 250,
-      sessions: 120,
-      bounces: 45,
-      bounce_rate: 0.375,
-      cr: 0.12,
-      custom_metric_avg: 14.5,
-      custom_metric_total: 1450,
-    };
-    const previousTotals: StatisticsTotals = {
-      visitors: 80,
-      views: 200,
-      sessions: 110,
-      bounces: 50,
-      bounce_rate: 0.4545,
-      cr: 0.08,
-      custom_metric_avg: 10,
-      custom_metric_total: 800,
-    };
-    const currentSeries: VisitorsPoint[] = [
-      { day: '2024-01-01T00:00:00Z', visitors: 40, views: 100, sessions: 50, bounces: 20, bounce_rate: 0.4, cr: 0.1 },
-    ];
-    const previousSeries: VisitorsPoint[] = [
-      { day: '2023-12-25T00:00:00Z', visitors: 30, views: 90, sessions: 45, bounces: 18, bounce_rate: 0.4, cr: 0.08 },
-    ];
-
-    const getStatistics = vi
-      .fn()
-      .mockResolvedValueOnce(currentTotals)
-      .mockResolvedValueOnce(previousTotals)
-      .mockResolvedValueOnce(currentSeries)
-      .mockResolvedValueOnce(previousSeries);
-
-    const result = await getComparisonResponse(
-      { getStatistics },
-      'domain-1',
-      {
-        compare: 'custom',
-        from: '2024-01-01',
-        to: '2024-01-07',
-        compare_from: '2023-12-25',
-        compare_to: '2023-12-31',
-        scale: 'week',
-      }
-    );
-
-    expect(getStatistics).toHaveBeenNthCalledWith(1, '/statistics/total', 'domain-1', {
-      from: '2024-01-01',
-      to: '2024-01-07',
-    });
-    expect(getStatistics).toHaveBeenNthCalledWith(2, '/statistics/total', 'domain-1', {
-      from: '2023-12-25',
-      to: '2023-12-31',
-    });
-    expect(getStatistics).toHaveBeenNthCalledWith(3, '/statistics/visitor', 'domain-1', {
-      from: '2024-01-01',
-      to: '2024-01-07',
-      scale: 'week',
-    });
-    expect(getStatistics).toHaveBeenNthCalledWith(4, '/statistics/visitor', 'domain-1', {
-      from: '2023-12-25',
-      to: '2023-12-31',
-      scale: 'week',
-    });
-
-    expect(result.totals.visitors).toEqual({ current: 100, previous: 80, change: 0.25 });
-    expect(result.totals.bounce_rate.current).toBe(0.375);
-    expect(result.totals.cr.current).toBe(0.12);
-    expect(result.totals.custom_metric_total.current).toBe(1450);
-    expect(result.series.current).toEqual(currentSeries);
-    expect(result.series.previous).toEqual(previousSeries);
-  });
-
-  it('rejects invalid compare input', async () => {
-    const getStatistics = vi.fn();
-
-    await expect(getComparisonResponse({ getStatistics }, 'domain-1', { compare: 'custom' })).rejects.toThrow(
-      'Provide either period or custom from/to + compare_from/compare_to'
-    );
-    expect(getStatistics).not.toHaveBeenCalled();
-  });
-});
-
-describe('normalizeFilterArgs', () => {
-  it('merges top-level filter args for callers that do not nest filter', () => {
-    expect(
-      normalizeFilterArgs({
-        from: '2024-03-25',
-        to: '2026-03-25',
-        search: '/news/',
-        limit: 5,
-        sort: 'visitors',
-        direction: 'desc',
-      })
-    ).toEqual({
-      from: '2024-03-25',
-      to: '2026-03-25',
-      search: '/news/',
-      limit: 5,
-      sort: 'visitors',
-      direction: 'desc',
-    });
-  });
-
-  it('prefers explicit nested filter values and supports event_name alias', () => {
-    expect(
-      normalizeFilterArgs({
-        event: 'Top Level Event',
-        event_name: 'Order',
-        filter: {
-          search: '/tutorials/',
-          event_name: 'Live Demo Signup',
-          limit: 10,
-        },
-      })
-    ).toEqual({
-      search: '/tutorials/',
-      event: 'Top Level Event',
-      limit: 10,
-    });
-
-    expect(
-      normalizeFilterArgs({
-        event_name: 'Order',
-        filter: {
-          from: '2024-03-25',
-          to: '2026-03-25',
-        },
-      })
-    ).toEqual({
-      from: '2024-03-25',
-      to: '2026-03-25',
-      event: 'Order',
-    });
-  });
-});
-
-describe('getLocalPathPrefix', () => {
-  it('derives a root-prefix matcher from path-shaped search and operator filters', () => {
-    expect(getLocalPathPrefix({ search: '/tutorials/' })).toBe('/tutorials/');
-    expect(getLocalPathPrefix({ path: '~/tutorials/' })).toBe('/tutorials/');
-    expect(getLocalPathPrefix({ pattern: '/tutorials/*' })).toBe('/tutorials/');
-    expect(getLocalPathPrefix({ path_prefix: '/news/' })).toBe('/news/');
-  });
-
-  it('leaves exact path filters alone', () => {
-    expect(getLocalPathPrefix({ path: '/tutorials/' })).toBeUndefined();
-    expect(getLocalPathPrefix({ search: 'tutorials' })).toBeUndefined();
-  });
-});
-
-describe('getPathFilteredStatistics', () => {
-  it('fetches additional batches until it has enough prefix matches', async () => {
-    const firstBatch = Array.from({ length: 99 }, (_, index) => ({
-      path: `/documentation/tutorials/article-${index}/`,
-    }));
-    firstBatch.push({ path: '/tutorials/root-one/' });
-
-    const secondBatch = [
-      { path: '/tutorials/root-two/' },
-      { path: '/tutorials/root-three/' },
-    ];
-
-    const getStatistics = vi
-      .fn()
-      .mockResolvedValueOnce(firstBatch)
-      .mockResolvedValueOnce(secondBatch);
-
-    const result = await getPathFilteredStatistics(
-      { getStatistics },
-      '/statistics/page',
-      'domain-1',
-      { search: '/tutorials/', limit: 2 },
-      '/tutorials/'
-    );
-
-    expect(getStatistics).toHaveBeenNthCalledWith(1, '/statistics/page', 'domain-1', {
-      search: '/tutorials/',
-      limit: 100,
-      offset: 0,
-    });
-    expect(getStatistics).toHaveBeenNthCalledWith(2, '/statistics/page', 'domain-1', {
-      search: '/tutorials/',
-      limit: 100,
-      offset: 100,
-    });
-    expect(result).toEqual([
-      { path: '/tutorials/root-one/' },
-      { path: '/tutorials/root-two/' },
-    ]);
-  });
-});
diff --git a/src/mcp.test.ts b/src/mcp.test.ts
index f01a8c2..e2af172 100644
--- a/src/mcp.test.ts
+++ b/src/mcp.test.ts
@@ -151,7 +151,6 @@ describe('Pirsch MCP tool contracts', () => {
     expect(result.isError).toBe(true);
     expect(get).not.toHaveBeenCalled();
   });
-
   it('keeps the environment timezone when custom client options are supplied', async () => {
     const originalTimezone = process.env.PIRSCH_TIMEZONE;
     process.env.PIRSCH_TIMEZONE = 'Europe/Berlin';