> For the complete documentation index, see [llms.txt](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/.spec_system/archive/sessions/phase27-session07-convergence-detection-and-trajectory-visuals/validation.md).

# Validation Report

**Session ID**: `phase27-session07-convergence-detection-and-trajectory-visuals` **Validated**: 2026-06-13 **Result**: PASS

***

## Validation Summary

| Check                     | Status | Notes                                                                                                      |
| ------------------------- | ------ | ---------------------------------------------------------------------------------------------------------- |
| Tasks Complete            | PASS   | 21/21 tasks complete                                                                                       |
| Files Exist               | PASS   | 17/17 spec deliverables exist and are non-empty; 1 additional touched dashboard test file reviewed         |
| ASCII Encoding            | PASS   | Session deliverables and session docs are ASCII-only with LF endings                                       |
| Tests Passing             | PASS   | `bun run test`: 3407/3407 tests passed                                                                     |
| Database/Schema Alignment | N/A    | N/A - no DB-layer changes, migrations, seeds, persisted tables, or ORM metadata                            |
| Quality Gates             | PASS   | App typecheck, script typecheck, lint, targeted session Prettier, payload budget, and tests passed         |
| Conventions               | PASS   | Session deliverables follow existing TypeScript, script, schema, component, and test placement conventions |
| Security & GDPR           | PASS   | Security PASS; GDPR N/A                                                                                    |
| Behavioral Quality        | PASS   | No BQC violations found                                                                                    |

**Overall**: PASS

***

## 1. Task Completion

### Status: PASS

| Category       | Required | Completed | Status |
| -------------- | -------- | --------- | ------ |
| Setup          | 2        | 2         | PASS   |
| Foundation     | 6        | 6         | PASS   |
| Implementation | 8        | 8         | PASS   |
| Testing        | 5        | 5         | PASS   |

### Incomplete Tasks

None.

***

## 2. Deliverables Verification

### Status: PASS

#### Files Created

| File                                                                             | Found | Status |
| -------------------------------------------------------------------------------- | ----- | ------ |
| `scripts/lib/ai-runtime/convergence.ts`                                          | Yes   | PASS   |
| `scripts/lib/ai-runtime/__tests__/convergence.test.ts`                           | Yes   | PASS   |
| `src/extensions/trend-finder/components/convergence-timeline.tsx`                | Yes   | PASS   |
| `src/extensions/trend-finder/components/score-trajectory.tsx`                    | Yes   | PASS   |
| `src/extensions/trend-finder/components/__tests__/convergence-timeline.test.tsx` | Yes   | PASS   |
| `src/extensions/trend-finder/components/__tests__/score-trajectory.test.tsx`     | Yes   | PASS   |

#### Files Modified

| File                                                          | Found | Status |
| ------------------------------------------------------------- | ----- | ------ |
| `scripts/lib/ai-runtime/scoring.ts`                           | Yes   | PASS   |
| `scripts/extensions/trend-finder/collector.ts`                | Yes   | PASS   |
| `src/extensions/trend-finder/schema.ts`                       | Yes   | PASS   |
| `src/extensions/trend-finder/view-model.ts`                   | Yes   | PASS   |
| `src/extensions/trend-finder/components/signal-radar.tsx`     | Yes   | PASS   |
| `src/extensions/trend-finder/fixtures.ts`                     | Yes   | PASS   |
| `src/data/live-data.example.json`                             | Yes   | PASS   |
| `scripts/extensions/trend-finder/__tests__/collector.test.ts` | Yes   | PASS   |
| `scripts/lib/ai-runtime/__tests__/scoring.test.ts`            | Yes   | PASS   |
| `src/lib/__tests__/trend-finder-schema.test.ts`               | Yes   | PASS   |
| `src/extensions/trend-finder/__tests__/view-model.test.ts`    | Yes   | PASS   |

### Additional Touched File Reviewed

* `src/lib/__tests__/trend-finder-dashboard.test.tsx` - Existing dashboard test fixture updated for new required topic projections.

### Missing Deliverables

None.

***

## 3. ASCII Encoding Check

### Status: PASS

All session deliverables and session documents passed ASCII and CRLF scans.

### Encoding Issues

None.

***

## 4. Test Results

### Status: PASS

| Metric      | Value         |
| ----------- | ------------- |
| Total Tests | 3407          |
| Passed      | 3407          |
| Failed      | 0             |
| Coverage    | Not collected |

### Commands

* `bun run test` - PASS, 277 test files and 3407 tests.
* `bun run typecheck` - PASS.
* `bun run typecheck:scripts` - PASS.
* `bun run lint` - PASS with 0 errors and 3 warnings outside this session's touched files.
* `bunx prettier --check <session files>` - PASS.
* `wc -c src/data/live-data.example.json` - 41,865 bytes, under the shared 1 MB extension payload limit.

### Failed Tests

None.

### Notes

Full-repo `bun run format:check` still reports historical Markdown/docs formatting drift outside this session, plus it initially reported the current session spec documents. The current session files were formatted and then passed targeted Prettier check; unrelated historical files were left untouched.

***

## 5. Database/Schema Alignment

### Status: N/A

N/A - this session changed browser/runtime Zod schemas and payload fields, but did not introduce database tables, migrations, persisted constraints, seeds, indexes, ORM metadata, or DB-backed generated types.

### Issues Found

N/A - no DB-layer changes.

***

## 6. Success Criteria

From `spec.md`:

### Functional Requirements

* [x] Convergence derives only from linked evidence timestamps and source metadata already present in the run.
* [x] Missing or invalid evidence timestamps produce explicit unavailable states, never guessed source order.
* [x] Single-source topics render a non-converged state consistent with the `single-source-signal` risk flag.
* [x] Detected convergence labels the lead source role and lag to follower sources inside the reviewed window.
* [x] Score trajectory displays actual historical/current points and labels any slope extrapolation as an extrapolation.
* [x] No `tbts`, peak-day, time-to-breakout, or unlabeled forecast estimate appears in the score trajectory payload or UI added by this session.

### Testing Requirements

* [x] Unit tests cover convergence window edges, invalid timestamps, duplicate evidence IDs, single-source topics, and deterministic ordering.
* [x] Scoring/trajectory tests cover historical score point bounds, current-score inclusion, and missing-history states.
* [x] Schema tests cover additive defaults, array bounds, malformed branches, and legacy payload compatibility.
* [x] View-model and component tests cover detected, not-detected, unavailable, and extrapolated trajectory labels.
* [x] Focused Trend Finder runtime and UI suites are included in the passing full Vitest run.

### Non-Functional Requirements

* [x] Browser payload remains bounded and under the shared 1 MB extension payload limit.
* [x] No new source adapter, credential, AI call, public collection path, or third-party transfer is introduced.
* [x] Private snapshot archive paths and raw histories stay out of browser payloads, UI, static outputs, logs, and traces.
* [x] Dense timeline and trajectory UI uses stable dimensions, truncation, and accessible labels.

### Quality Gates

* [x] All session files ASCII-encoded.
* [x] Unix LF line endings.
* [x] Code follows project conventions.
* [x] Relevant TypeScript and Vitest checks pass.

***

## 7. Conventions Compliance

### Status: PASS

| Category       | Status | Notes                                                                                                                              |
| -------------- | ------ | ---------------------------------------------------------------------------------------------------------------------------------- |
| Naming         | PASS   | New helpers and components use descriptive Trend Finder terms and avoid new `findtrend` globals.                                   |
| File Structure | PASS   | Script helpers/tests, schema/view-model logic, components, fixtures, and tests are in existing local paths.                        |
| Error Handling | PASS   | Invalid timestamps produce explicit unavailable states; collector convergence failures emit warnings rather than crashing the run. |
| Comments       | PASS   | No noisy or stale comments added. Existing decorative telemetry comments were not part of this session's behavioral contract.      |
| Testing        | PASS   | Tests are close to covered behavior and run in the full Vitest suite.                                                              |

### Convention Violations

None.

***

## 8. Security & GDPR Compliance

### Status: PASS

**Full report**: See `security-compliance.md` in this session directory.

#### Summary

| Area     | Status | Findings |
| -------- | ------ | -------- |
| Security | PASS   | 0 issues |
| GDPR     | N/A    | 0 issues |

### Critical Violations

None.

***

## 9. Behavioral Quality Spot-Check

### Status: PASS

**Checklist applied**: Yes **Files spot-checked**:

* `scripts/lib/ai-runtime/convergence.ts`
* `scripts/lib/ai-runtime/scoring.ts`
* `scripts/extensions/trend-finder/collector.ts`
* `src/extensions/trend-finder/schema.ts`
* `src/extensions/trend-finder/view-model.ts`
* `src/extensions/trend-finder/components/convergence-timeline.tsx`
* `src/extensions/trend-finder/components/score-trajectory.tsx`
* `src/extensions/trend-finder/components/signal-radar.tsx`

| Category           | Status | File                                                                                         | Details                                                                                                               |
| ------------------ | ------ | -------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------- |
| Trust boundaries   | PASS   | `scripts/lib/ai-runtime/convergence.ts`, `src/extensions/trend-finder/schema.ts`             | Invalid/future timestamps are rejected; schema branches are bounded and defaultable.                                  |
| Resource cleanup   | PASS   | `src/extensions/trend-finder/components/signal-radar.tsx`                                    | Existing interval cleanup remains intact; selected-topic local state resets on topic changes.                         |
| Mutation safety    | PASS   | `scripts/extensions/trend-finder/collector.ts`                                               | Additive convergence attachment maps topics deterministically and does not add write-side actions.                    |
| Failure paths      | PASS   | `scripts/extensions/trend-finder/collector.ts`, `scripts/lib/ai-runtime/convergence.ts`      | Collector warnings cover convergence failure and missing timestamp cases; helper returns explicit unavailable states. |
| Contract alignment | PASS   | `scripts/lib/ai-runtime/scoring.ts`, `src/extensions/trend-finder/view-model.ts`, components | Score trajectory contains actual points only; UI labels extrapolated slope separately; enums use exhaustive handling. |

### Violations Found

None.

### Fixes Applied During Validation

* Formatted current session spec documents with Prettier.
* Left unrelated historical Markdown/docs Prettier drift untouched.

## Validation Result

### PASS

Session 07 satisfies task completion, deliverables, encoding, tests, schema compatibility, security/GDPR, behavioral quality, and quality gate requirements.

### Required Actions

None.

## Next Steps

Run `updateprd` to mark session complete.


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