Plan 02-01 Task 2 RED gate. Five failing tests pin D-P2-02 (meta.json
url→urls migration) and the F2 plan-checker-iter-1 resolution (empty-
tracker → urls:[], no sentinel fallback) ahead of Plan 02-03.
Tests:
1. SessionMetadata interface in src/shared/types.ts has 'urls: string[]'
and no 'url:' field. Source-text scan (typecheck disabled in
vitest.config.ts so tsc-failure pin would be a no-op).
2. createArchive emits meta.json with Array urls and no url field.
3. meta.urls deduplicates repeated URLs (first-seen-first order).
4. meta.urls filters chrome:// + about:; includes chrome-extension://.
5. Empty tracker → meta.urls === [] (NOT undefined/null/[origin]).
RED evidence (vitest 4.1.6 against current HEAD):
× Test 1: SessionMetadata interface body does not contain a
'urls: string[]' field (and still contains 'url:').
× Test 2: meta.urls is not an Array. Got: undefined.
× Tests 3+4+5: src/background/tab-url-tracker.ts does not exist —
Plan 02-03 GREEN gate. Each expect.fail emits the precise
contract for the GREEN flip (export name getTabUrlsSeen(),
dedup Set semantics, first-seen-first order, URL filter spec,
empty-array empty-tracker resolution).
Module seam (Plan 02-03 implements):
src/background/tab-url-tracker.ts
export function getTabUrlsSeen(): string[]
Fed by chrome.tabs.onUpdated + chrome.tabs.onActivated (per DEC-011
Amendment 1 'tabs' permission grant).
Baseline: 155 GREEN preserved (no regressions); this plan now has 8
NEW RED tests total (Task 1: 3 + Task 2: 5).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Mark
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