diff --git a/test/fixtures/shared-libs/pr-coverage-endpoints.json b/test/fixtures/shared-libs/pr-coverage-endpoints.json
new file mode 100644
index 000000000..a0ee063fe
--- /dev/null
+++ b/test/fixtures/shared-libs/pr-coverage-endpoints.json
@@ -0,0 +1,14 @@
+{
+  "_comment": "gh/curl endpoint lists for shared-libs-pr-coverage. known_good must pass prCoverageRequestViolations; known_bad must fail it. R = /repos/fixture/shared-libs.",
+  "known_good": {
+    "single-pass": ["/repos/fixture/shared-libs/pulls?state=all&sort=updated&direction=desc&per_page=100&page=1", "/repos/fixture/shared-libs/pulls/7/files?per_page=100&page=1", "/repos/fixture/shared-libs/pulls?state=open&sort=updated&direction=desc&per_page=100&page=1", "/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=1", "/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=2"],
+    "census-truncated-first-view-then-pages-1-3": ["/repos/fixture/shared-libs/pulls?state=open&sort=updated&direction=desc&per_page=100&page=1", "/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=1", "/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=1", "/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=2", "/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=3"],
+    "first-page-reread-twice-within-budget": ["/repos/fixture/shared-libs/pulls?state=open&sort=updated&direction=desc&per_page=100&page=1", "/repos/fixture/shared-libs/pulls/42/files?per_page=100", "/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=1", "/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=1", "/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=2"]
+  },
+  "known_bad": {
+    "first-page-only": ["/repos/fixture/shared-libs/pulls?state=open&sort=updated&direction=desc&per_page=100&page=1", "/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=1"],
+    "never-read-pr-42": ["/repos/fixture/shared-libs/pulls?state=open&sort=updated&direction=desc&per_page=100&page=1"],
+    "page-2-without-page-1": ["/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=2"],
+    "six-metadata-pages": ["/repos/fixture/shared-libs/pulls?state=open&per_page=100&page=1", "/repos/fixture/shared-libs/pulls?state=open&per_page=100&page=2", "/repos/fixture/shared-libs/pulls?state=open&per_page=100&page=3", "/repos/fixture/shared-libs/pulls?state=open&per_page=100&page=4", "/repos/fixture/shared-libs/pulls?state=open&per_page=100&page=5", "/repos/fixture/shared-libs/pulls?state=open&per_page=100&page=6", "/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=1", "/repos/fixture/shared-libs/pulls/42/files?per_page=100&page=2"]
+  }
+}
diff --git a/test/helpers/shared-libs-eval-fixture.ts b/test/helpers/shared-libs-eval-fixture.ts
index aa6776ab3..68678e97b 100644
--- a/test/helpers/shared-libs-eval-fixture.ts
+++ b/test/helpers/shared-libs-eval-fixture.ts
@@ -1031,6 +1031,24 @@ export function toolCommandTrace(result: { toolCalls: Array<{ tool: string; inpu
   return result.toolCalls.filter(call => call.tool === 'Bash').map(call => String(call.input?.command || ''));
 }
 
+/**
+ * PR-coverage request check against the skill's stated older-open-PR budget
+ * (five metadata pages, fifty file-list pages, plus recent PR 7's one page)
+ * and the coverage outcome: PR 42's file list was read from page 1 through
+ * page 2. How often a page was re-read within budget is not graded.
+ */
+export function prCoverageRequestViolations(endpoints: string[]): string[] {
+  const violations: string[] = [];
+  const coordination = endpoints.filter(endpoint => /\/pulls\/42\/files/.test(endpoint));
+  if (!coordination.some(endpoint => !/[?&]page=/.test(endpoint) || /[?&]page=1(?:&|$)/.test(endpoint))) violations.push('PR 42 first file page not read');
+  if (!coordination.some(endpoint => /[?&]page=2(?:&|$)/.test(endpoint))) violations.push('PR 42 second file page not read');
+  const openPages = endpoints.filter(endpoint => /\/pulls\?/.test(endpoint) && /state=open/.test(endpoint)).length;
+  if (openPages > 5) violations.push(`${openPages} open-PR metadata pages exceed the budget of 5`);
+  const filePages = endpoints.filter(endpoint => /\/pulls\/\d+\/files/.test(endpoint)).length;
+  if (filePages > 51) violations.push(`${filePages} file-list pages exceed the budget of 50 plus PR 7`);
+  return violations;
+}
+
 /** Whether the first read of a PR's file-list page 1 left no usable file set:
  * truncated by `head -c`, or a failed filter (e.g. a jq error) that printed no
  * file entries. One recovery read of page 1 is then legitimate, still charged
diff --git a/test/shared-libs-fixture.test.ts b/test/shared-libs-fixture.test.ts
index 7affb5de8..2bbbff13e 100644
--- a/test/shared-libs-fixture.test.ts
+++ b/test/shared-libs-fixture.test.ts
@@ -7,7 +7,7 @@ import { execFileSync, spawnSync } from 'node:child_process';
 import {
   createSharedInteractiveToolHandler, createSharedLibsFixture, fixtureGit, fixtureWrite, installSourceShims,
   installHostileGitConfig, isGuardedGitRequest, reviewLifecycleInstructions, standaloneInstructions, SHARED_LIBS_ROOT, readRequests, seedOpportunitySources, sharedReadOnlyViolations, shellQuote, snapshotFixture, type SharedLibsFixture,
-  SharedCaptureAccumulator, type SharedCaptureAttempt, isInternalClaudeGitRequest, SHARED_LIBS_OLDER_OPEN_PRS, incompleteFirstFileView,
+  SharedCaptureAccumulator, type SharedCaptureAttempt, isInternalClaudeGitRequest, SHARED_LIBS_OLDER_OPEN_PRS, incompleteFirstFileView, prCoverageRequestViolations,
 } from './helpers/shared-libs-eval-fixture';
 import { EvalCollector, type EvalTestEntry } from './helpers/eval-store';
 import { collectorOutcomeCounts } from '../scripts/test-paid-shards';
@@ -1075,7 +1075,12 @@ describe('shared-code PR coverage world', () => {
 
   test('the maximum authorized open-metadata scan still leaves older open PRs unchecked', () => {
     const periodic = fs.readFileSync(path.join(import.meta.dir, 'skill-e2e-shared-libs-periodic.test.ts'), 'utf8');
-    expect(periodic).toContain('expect(openPages.length).toBeLessThanOrEqual(5);');
+    expect(periodic).toContain('prCoverageRequestViolations(');
+    const sixth = Array.from({ length: 6 }, (_, i) => `/repos/fixture/shared-libs/pulls?state=open&per_page=100&page=${i + 1}`);
+    expect(prCoverageRequestViolations([...sixth.slice(0, 5), '/repos/fixture/shared-libs/pulls/42/files?page=1',
+      '/repos/fixture/shared-libs/pulls/42/files?page=2'])).toEqual([]);
+    expect(prCoverageRequestViolations([...sixth, '/repos/fixture/shared-libs/pulls/42/files?page=1',
+      '/repos/fixture/shared-libs/pulls/42/files?page=2'])).toEqual(['6 open-PR metadata pages exceed the budget of 5']);
     const f = createSharedLibsFixture('pr-world-budget');
     cleanup.push(f.root);
     seedOpportunitySources(f);
diff --git a/test/shared-libs-pr-coverage-budget.test.ts b/test/shared-libs-pr-coverage-budget.test.ts
new file mode 100644
index 000000000..b4a0cea1a
--- /dev/null
+++ b/test/shared-libs-pr-coverage-budget.test.ts
@@ -0,0 +1,21 @@
+import { describe, expect, test } from 'bun:test';
+import * as fs from 'fs';
+import * as path from 'path';
+import { prCoverageRequestViolations } from './helpers/shared-libs-eval-fixture';
+
+const stored = JSON.parse(fs.readFileSync(path.join(import.meta.dir, 'fixtures/shared-libs/pr-coverage-endpoints.json'), 'utf8')) as
+  { known_good: Record<string, string[]>; known_bad: Record<string, string[]> };
+
+describe('shared-libs PR coverage request budget', () => {
+  test.each(Object.entries(stored.known_good))('passes %s', (_name, endpoints) => {
+    expect(prCoverageRequestViolations(endpoints)).toEqual([]);
+  });
+  test.each(Object.entries(stored.known_bad))('fails %s', (_name, endpoints) => {
+    expect(prCoverageRequestViolations(endpoints).length).toBeGreaterThan(0);
+  });
+  test('file-list pages beyond the stated budget fail', () => {
+    const pages = Array.from({ length: 52 }, (_, i) => `/repos/fixture/shared-libs/pulls/${i < 2 ? 42 : 100 + i}/files?per_page=100&page=${i < 2 ? i + 1 : 1}`);
+    expect(prCoverageRequestViolations(pages)).toEqual(['52 file-list pages exceed the budget of 50 plus PR 7']);
+    expect(prCoverageRequestViolations(pages.slice(0, 51))).toEqual([]);
+  });
+});
diff --git a/test/skill-e2e-shared-libs-periodic.test.ts b/test/skill-e2e-shared-libs-periodic.test.ts
index a93037efc..9b65c092f 100644
--- a/test/skill-e2e-shared-libs-periodic.test.ts
+++ b/test/skill-e2e-shared-libs-periodic.test.ts
@@ -10,7 +10,7 @@ import { createSharedPlanReuseSelector } from './helpers/shared-libs-plan-actor'
 import {
   SHARED_LIBS_ROOT, commitFixture, createSharedLibsFixture, fixtureWrite, installSourceShims,
   readRequests, runSharedCapture, runSharedInteractive, seedOpportunitySources,
-  sharedReadOnlyViolations, snapshotFixture, standaloneInstructions, toolCommandTrace, incompleteFirstFileView, type SharedLibsFixture,
+  sharedReadOnlyViolations, snapshotFixture, standaloneInstructions, toolCommandTrace, prCoverageRequestViolations, type SharedLibsFixture,
   SharedCaptureAccumulator, type SharedCaptureAttempt,
 } from './helpers/shared-libs-eval-fixture';
 
@@ -152,25 +152,9 @@ describeE2E('Shared-code opportunity and coordination judgment (periodic)', () =
         `Run /deslop-shared-libs using ${instructions}. Recent PR 7 mentions https://github.com/fixture/shared-libs/pull/42 as related work. Return the report after checking coordination within the skill's budget.`, attempt), async result => {
         assertReadOnly(f, before, result, 'shared-libs-pr-coverage');
         const requests = readRequests(f).filter(row => row.tool === 'gh' || row.tool === 'curl');
-        const endpoints = requests.map(row => row.endpoint || '');
-        expect(endpoints.some(endpoint => /\/pulls\/42\/files/.test(endpoint))).toBe(true);
-        expect(endpoints.some(endpoint => /\/pulls\/42\/files/.test(endpoint) && /[?&]page=2(?:&|$)/.test(endpoint))).toBe(true);
-        const openPages = endpoints.filter(endpoint => /\/pulls\?/.test(endpoint) && /state=open/.test(endpoint));
-        const filePages = endpoints.filter(endpoint => /\/pulls\/\d+\/files/.test(endpoint));
-        expect(openPages.length).toBeLessThanOrEqual(5);
-        // Only recent PR7's one page is outside the additional scan. Known old PR42
-        // shares that scan's 50-page budget, including both of its file-list pages.
-        expect(filePages.length).toBeLessThanOrEqual(51);
-        const coordinationPages = endpoints.filter(endpoint => /\/pulls\/42\/files/.test(endpoint));
-        // An incomplete first page is not a reusable complete file set. The
-        // observed capture truncated its first response with head, then fetched
-        // full pages 1–3. Permit that one recovery while charging every request
-        // to the hard budget and forbidding repeated complete first-page reads.
-        const truncatedFirstView = incompleteFirstFileView(result, 42);
-        expect(coordinationPages.length).toBeLessThanOrEqual(truncatedFirstView ? 4 : 3);
-        const firstPages = coordinationPages.filter(endpoint => !/[?&]page=/.test(endpoint) || /[?&]page=1(?:&|$)/.test(endpoint));
-        expect(firstPages.length).toBeGreaterThan(0);
-        expect(firstPages.length).toBeLessThanOrEqual(truncatedFirstView ? 2 : 1);
+        // The skill's stated page budget and PR 42 file-set coverage; per-PR
+        // page ceilings tuned to one observed run are not graded.
+        expect(prCoverageRequestViolations(requests.map(row => row.endpoint || ''))).toEqual([]);
         await assertJudgment(result.output, {
           older_open_pr: 'Identifies open PR 42 from 2020 as existing coordination work despite its activity being outside the 14-day window. The PR already proposes migrating retry-worker to the proven parser.',
           partial_overlap: 'Does not count the worker migration already covered by PR 42 as a new opportunity. It may recommend the independent remaining retry-route migration if it explains the narrowed scope and adjusted savings.',