diff --git a/.planning/STATE.md b/.planning/STATE.md
index 8d10a8e..524654b 100644
--- a/.planning/STATE.md
+++ b/.planning/STATE.md
@@ -4,13 +4,13 @@ milestone: v3.0
milestone_name: Phishing Triage Automation
status: executing
stopped_at: Phase 18 planned, 3 plans ready
-last_updated: "2026-07-15T23:14:09.528Z"
-last_activity: 2026-07-15 -- Phase 18 execution started
+last_updated: "2026-07-16T02:22:05.897Z"
+last_activity: 2026-07-16 -- Phase 18 planning complete
progress:
total_phases: 7
completed_phases: 3
- total_plans: 10
- completed_plans: 7
+ total_plans: 11
+ completed_plans: 10
percent: 43
---
@@ -27,8 +27,8 @@ See: .planning/PROJECT.md (updated 2026-07-14)
Phase: 18 (campaign-grouping-phishing-analysis-api) — EXECUTING
Plan: 1 of 3
-Status: Executing Phase 18
-Last activity: 2026-07-15 -- Phase 18 execution started
+Status: Ready to execute
+Last activity: 2026-07-16 -- Phase 18 planning complete
Progress: [░░░░░░░░░░] 0%
@@ -96,7 +96,7 @@ None yet.
### Blockers/Concerns
-None yet.
+- 2026-07-15 — Phase 18 gap closure (18-04): decision-coverage gate flagged D-02/D-03/D-04 (grouping-parameter decisions from original discuss-phase) as not literally cited in any plan's `must_haves`/`truths`. Overridden and proceeded — these decisions were already implemented in 18-01 (24h window, subject normalization, no-merge behavior) and independently confirmed correct by both 18-REVIEW.md and 18-VERIFICATION.md. Citation gap only, not an implementation gap.
### Quick Tasks Completed
diff --git a/.planning/phases/18-campaign-grouping-phishing-analysis-api/18-04-PLAN.md b/.planning/phases/18-campaign-grouping-phishing-analysis-api/18-04-PLAN.md
new file mode 100644
index 0000000..3118eb0
--- /dev/null
+++ b/.planning/phases/18-campaign-grouping-phishing-analysis-api/18-04-PLAN.md
@@ -0,0 +1,230 @@
+---
+phase: 18-campaign-grouping-phishing-analysis-api
+plan: 04
+type: execute
+wave: 1
+depends_on: ["18-01", "18-03"]
+files_modified:
+ - lib/services/campaign-grouping-service.ts
+ - lib/services/campaign-grouping-service.test.ts
+ - app/api/phishing/campaigns/route.ts
+autonomous: true
+gap_closure: true
+requirements: [CAMP-02, CAMP-03]
+
+must_haves:
+ truths:
+ - "Re-running POST /analyze on a report already linked to a multi-report campaign does NOT increment that campaign's report_count again"
+ - "First-time grouping and campaign creation continue to work exactly as before (no regression in the 16 existing tests)"
+ - "GET /api/phishing/campaigns?limit=-5 returns 200 with a clamped limit instead of an unhandled 500"
+ artifacts:
+ - path: "lib/services/campaign-grouping-service.ts"
+ provides: "groupReportIntoCampaign short-circuits when a tiered match resolves to the report's own current campaign_id"
+ contains: "ownReport.campaign_id"
+ - path: "lib/services/campaign-grouping-service.test.ts"
+ provides: "Regression test proving report_count is not double-incremented on sibling re-match"
+ contains: "report_count"
+ - path: "app/api/phishing/campaigns/route.ts"
+ provides: "limit query param clamped to [0, 200] with no falsy-zero fallthrough"
+ contains: "Math.max"
+ key_links:
+ - from: "lib/services/campaign-grouping-service.ts groupReportIntoCampaign"
+ to: "ownReport.campaign_id short-circuit before UPDATE campaigns"
+ via: "matchCampaignId === ownReport.campaign_id no-op guard"
+ pattern: "matchCampaignId === ownReport.campaign_id"
+---
+
+
+Close the single blocking gap from 18-VERIFICATION.md (CAMP-02), independently
+flagged as CR-01 in 18-REVIEW.md: `groupReportIntoCampaign` double-increments
+`campaigns.report_count` every time `POST /api/phishing/tickets/{id}/analyze` is
+re-run on a report that already belongs to a multi-report campaign. Because the
+tier queries exclude the report's OWN row (`r.id != $x`) but NOT its sibling
+rows, a re-analyze finds a sibling already in the same campaign, treats it as a
+fresh match, and bumps `report_count` again — with no upper bound. `report_count`
+is the exact blast-radius number surfaced by `GET /api/phishing/campaigns` and
+`GET /api/phishing/campaigns/{id}`, so this makes CAMP-03's read API report an
+untrustworthy campaign size.
+
+Also fixes the secondary WR-02 finding (in scope, low risk, same read API): the
+`limit` query param in the campaigns list route is not clamped — `limit=0`
+silently becomes 50 and `limit=-5` produces an unhandled Postgres 500.
+
+Purpose: make campaign `report_count` accurate and idempotent under repeat
+`/analyze` calls, which is the explicitly supported, documented use case for the
+route (Tier-3 → Tier-1/2 upgrade after EML parsing).
+Output: fixed grouping service + regression test + clamped limit param.
+
+
+
+@$HOME/.claude/get-shit-done/workflows/execute-plan.md
+@$HOME/.claude/get-shit-done/templates/summary.md
+
+
+
+@.planning/PROJECT.md
+@.planning/ROADMAP.md
+@.planning/STATE.md
+@.planning/phases/18-campaign-grouping-phishing-analysis-api/18-VERIFICATION.md
+@.planning/phases/18-campaign-grouping-phishing-analysis-api/18-REVIEW.md
+
+
+
+
+From lib/services/campaign-grouping-service.ts (the function being fixed):
+```typescript
+export interface GroupReportResult {
+ campaignId: string;
+ groupMethod: 'message_id' | 'attachment_or_url' | 'sender_subject_client';
+ created: boolean;
+}
+
+// Current OwnReportRow — MISSING campaign_id (the root of the bug)
+interface OwnReportRow {
+ title: string | null;
+ requester_contact_id: number | null;
+ company_id: number | null;
+ created_at: string;
+}
+
+export async function groupReportIntoCampaign(
+ reportId: string,
+ opts?: { skipIfAlreadyGrouped?: boolean }
+): Promise;
+```
+
+The buggy code region (lib/services/campaign-grouping-service.ts):
+- Lines 156-161: `ownReportRes` SELECT — selects `title, requester_contact_id, company_id, created_at` but NOT `campaign_id`.
+- Lines 323-335: the match branch — unconditionally runs `UPDATE campaigns SET report_count = report_count + 1 ...` then `UPDATE reports SET campaign_id = ...`, with no check for `matchCampaignId === ownReport.campaign_id`.
+
+From the test mock (lib/services/campaign-grouping-service.test.ts):
+- The fake client routes the own-report SELECT via `sql.includes('requester_contact_id, company_id, created_at')`. Adding `campaign_id::text AS campaign_id` AFTER `created_at` preserves this substring, so the existing routing keeps working.
+- `REPORT_ROW` (line 136) is the shared fixture; existing tests leave `campaign_id` undefined, which stays `!== matchCampaignId`, so they keep incrementing as before (no regression).
+- `callsContaining('UPDATE campaigns')` is the existing helper used to assert increment behavior.
+
+From app/api/phishing/campaigns/route.ts (WR-02 site):
+```typescript
+// Line 31 — buggy: `|| 50` swallows an explicit 0, and negative values are never floored:
+const limit = Math.min(parseInt(url.searchParams.get('limit') ?? '50', 10) || 50, 200);
+// Line 32 — offset is already correctly floored, use as the pattern to mirror:
+const offset = Math.max(parseInt(url.searchParams.get('offset') ?? '0', 10) || 0, 0);
+```
+
+
+
+
+
+
+ Task 1: Short-circuit own-campaign re-match in groupReportIntoCampaign + regression test
+ lib/services/campaign-grouping-service.ts, lib/services/campaign-grouping-service.test.ts
+
+ - lib/services/campaign-grouping-service.ts (the whole file — small, ~390 lines; focus lines 64-69 OwnReportRow, 156-165 own-report SELECT, 320-335 match branch)
+ - lib/services/campaign-grouping-service.test.ts (the whole file — study makeClient routing at lines 79-117, REPORT_ROW at 136, and the Tier 3 increment test at 143-169 as the template for the new regression test)
+ - .planning/phases/18-campaign-grouping-phishing-analysis-api/18-REVIEW.md (CR-01 remediation, lines 47-127 — the fix is spelled out there)
+
+
+ - Regression (the gap): a report already linked to campaign X whose tiered re-match resolves to campaign X (via a SIBLING report, not its own excluded row) must NOT run `UPDATE campaigns ... report_count + 1` a second time; it returns `{ campaignId: X, groupMethod, created: false }` as a no-op.
+ - No regression: a report with no current campaign that tier-matches campaign Y (Y !== own campaign_id, including the case where own campaign_id is null/undefined) still increments Y's report_count and links the report — exactly as the existing 16 tests assert.
+ - No regression: when nothing matches, a new campaign is still created (existing "self-exclusion" test at line 305 stays green).
+
+
+ Root cause (per CR-01): `ownReportRes` never selects the report's current `campaign_id`, and the match branch has no guard for the case where the tiered match resolves to the campaign the report is ALREADY in. Since `/analyze` re-runs grouping unconditionally (D-08, by design) and tier queries only exclude the report's own row (not its siblings), any multi-report campaign gets re-matched and double-counted on every repeat call.
+
+ Fix in lib/services/campaign-grouping-service.ts:
+ 1. Add `campaign_id: string | null` to the `OwnReportRow` interface (after `created_at`).
+ 2. In the `ownReportRes` SELECT (currently `SELECT title, requester_contact_id, company_id, created_at FROM reports WHERE id = $1`), add `, campaign_id::text AS campaign_id` at the END of the column list — after `created_at` — so the existing test-mock routing substring `requester_contact_id, company_id, created_at` is preserved. Cast to text to match how campaign_id is compared elsewhere (`::text`).
+ 3. In the match branch (the `if (matchCampaignId && matchGroupMethod)` block, ~line 323), BEFORE the `UPDATE campaigns` call, add a guard: if `matchCampaignId === ownReport.campaign_id`, short-circuit as a no-op — return `{ campaignId: matchCampaignId, groupMethod: matchGroupMethod, created: false }` WITHOUT running either UPDATE. Add a brief comment explaining this is the "already correctly linked, re-run found the same campaign again" no-op that prevents report_count inflation (CR-01/CAMP-02).
+ 4. Do NOT implement report-moves-between-campaigns / origin-count-decrement — that path does not exist today and is explicitly out of scope for this gap (VERIFICATION.md lists it only as a conditional "if ever supported"). Leave the existing behavior for a genuinely different-campaign match (Y !== own) unchanged.
+
+ Then add a regression test in lib/services/campaign-grouping-service.test.ts modeled on the existing Tier 3 test (lines 143-169):
+ - Stage `ownReport` as a row that includes `campaign_id: 'campaign-1'` (spread REPORT_ROW and add campaign_id), `ownMessage: []`, and `tier3: [{ campaign_id: 'campaign-1', title: 'Invoice Alert' }]` — i.e. the tiered match resolves to the report's OWN current campaign via a sibling.
+ - Call `groupReportIntoCampaign('report-self')`.
+ - Assert the result equals `{ campaignId: 'campaign-1', groupMethod: 'sender_subject_client', created: false }`.
+ - Assert `callsContaining('UPDATE campaigns')` has length 0 (the critical assertion — report_count NOT bumped a second time).
+ - Assert `callsContaining('INSERT INTO campaigns')` has length 0 (no new campaign either).
+ - Optionally also assert `callsContaining('UPDATE reports SET campaign_id')` has length 0 (no redundant re-link).
+ Name the test to describe the sibling-re-match scenario (e.g. "re-analyzing a report already linked to a campaign that a sibling report re-matches does not increment report_count a second time").
+
+ Do NOT touch the Tier 1/2/3 self-exclusion logic, the skipIfAlreadyGrouped path, or the new-campaign creation path — they are verified correct.
+
+
+ npx vitest run lib/services/campaign-grouping-service.test.ts && npx tsc --noEmit --pretty
+
+
+ - All existing tests plus the new regression test pass (17+ tests green).
+ - The new test fails if the short-circuit guard is removed (it asserts 0 `UPDATE campaigns` calls on a same-campaign sibling re-match).
+ - `npx tsc --noEmit --pretty` exits 0.
+ - `OwnReportRow` has a `campaign_id` field and the own-report SELECT fetches `campaign_id::text`.
+
+
+ Re-matching the report's own current campaign is a no-op: report_count is not incremented a second time, closing the CAMP-02 gap. First-time grouping and campaign creation are unchanged.
+
+
+
+
+ Task 2: Clamp the campaigns list limit query param (WR-02)
+ app/api/phishing/campaigns/route.ts
+
+ - app/api/phishing/campaigns/route.ts (whole file — 77 lines; the fix is line 31, mirror the offset handling on line 32)
+ - .planning/phases/18-campaign-grouping-phishing-analysis-api/18-REVIEW.md (WR-02, lines 151-169 — remediation given verbatim)
+
+
+ Fix WR-02 on line 31 of app/api/phishing/campaigns/route.ts. The current
+ `const limit = Math.min(parseInt(url.searchParams.get('limit') ?? '50', 10) || 50, 200);`
+ has two bugs: `|| 50` treats an explicit valid `limit=0` as falsy and overrides it with 50, and there is no lower bound so `limit=-5` flows straight into `LIMIT $1` and Postgres raises "LIMIT must not be negative" as an unhandled 500.
+
+ Replace with a parse-then-clamp that floors at 0 and caps at 200, using the same defensive shape as the `offset` line directly below it:
+ - Parse the raw `limit` param once (default to 50 when absent or non-numeric — use `Number.isFinite` on the parsed value rather than `|| 50` so an explicit 0 survives).
+ - Clamp with `Math.min(Math.max(parsed, 0), 200)`.
+
+ Do NOT change the `offset`, `status`, pagination response shape, or the auth gate. This is a one-line-region fix.
+
+
+ npx tsc --noEmit --pretty && grep -q "Math.max" app/api/phishing/campaigns/route.ts
+
+
+ - `limit` is floored at 0 and capped at 200; an explicit `limit=0` is no longer silently replaced by 50; a negative `limit` can no longer reach the SQL.
+ - `npx tsc --noEmit --pretty` exits 0.
+ - No other behavior in the route changed (auth gate, offset, status filter, response shape intact).
+
+
+ GET /api/phishing/campaigns?limit=-5 returns a clamped 200 response instead of an unhandled 500; explicit limit=0 is honored.
+
+
+
+
+
+
+## Trust Boundaries
+
+| Boundary | Description |
+|----------|-------------|
+| client → GET /api/phishing/campaigns | Untrusted `limit`/`offset`/`status` query params cross into a SQL LIMIT/OFFSET |
+| repeat /analyze → campaign-grouping-service | Idempotency boundary: the same report re-processed must not corrupt aggregate state |
+
+## STRIDE Threat Register
+
+| Threat ID | Category | Component | Disposition | Mitigation Plan |
+|-----------|----------|-----------|-------------|-----------------|
+| T-18-01 | Tampering | groupReportIntoCampaign report_count aggregate | mitigate | Short-circuit no-op when a tiered match resolves to the report's own current campaign_id (Task 1) — prevents unbounded inflation of the integrity-critical count |
+| T-18-02 | Denial of Service | GET /api/phishing/campaigns `limit` param | mitigate | Clamp `limit` to [0,200] so a negative value cannot trigger a Postgres error / unhandled 500 (Task 2) |
+| T-18-SC | Tampering | npm/pip/cargo installs | accept | No package installs in this gap-closure plan — no new dependencies added |
+
+
+
+- `npx vitest run lib/services/campaign-grouping-service.test.ts` — all tests pass including the new sibling-re-match regression test.
+- `npx tsc --noEmit --pretty` — exits 0 across the repo.
+- Manual code read confirms `ownReport.campaign_id` guard sits before the `UPDATE campaigns` call in the match branch.
+- Manual code read confirms `limit` is clamped with `Math.max(..., 0)` and `Math.min(..., 200)`.
+
+
+
+- CAMP-02 gap from 18-VERIFICATION.md is closed: re-analyzing an already-grouped report does not double-increment `report_count`.
+- WR-02 read-API bug is closed: negative/zero `limit` handled safely.
+- No regression: the existing 16 grouping tests remain green.
+- Type check clean.
+
+
+