> 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/phase24-session03-browser-safe-evidence-assets-file-hardening/validation.md).

# Validation Report

**Session ID**: `phase24-session03-browser-safe-evidence-assets-file-hardening` **Validated**: 2026-06-08 **Result**: PASS

***

## Validation Summary

| Check                     | Status | Notes                                                                                                                                           |
| ------------------------- | ------ | ----------------------------------------------------------------------------------------------------------------------------------------------- |
| Tasks Complete            | PASS   | 25/25 tasks complete                                                                                                                            |
| Files Exist               | PASS   | 20/20 deliverables found                                                                                                                        |
| ASCII Encoding            | PASS   | No non-ASCII bytes and no CRLF line endings in deliverables; `src/extensions/trend-finder/views/engine-replay-view.tsx` was normalized to ASCII |
| Tests Passing             | PASS   | 3023/3023 tests passed                                                                                                                          |
| Database/Schema Alignment | N/A    | No DB-layer changes                                                                                                                             |
| Quality Gates             | PASS   | Type checks, diff check, and focused repo validation passed                                                                                     |
| Conventions               | PASS   | No obvious conventions violations in the touched surface                                                                                        |
| Security & GDPR           | PASS   | Security review passed; GDPR is N/A because no personal data handling was added                                                                 |
| Behavioral Quality        | PASS   | Bridge, manifest, view-model, and replay paths were spot-checked for obvious trust-boundary and failure-path issues                             |

**Overall**: PASS

***

## 1. Task Completion

### Status: PASS

| Category       | Required | Completed | Status |
| -------------- | -------- | --------- | ------ |
| Setup          | 3        | 3         | PASS   |
| Foundation     | 6        | 6         | PASS   |
| Implementation | 12       | 12        | PASS   |
| Testing        | 4        | 4         | PASS   |

### Incomplete Tasks

None

***

## 2. Deliverables Verification

### Status: PASS

#### Files Created

| File                                                                | Found | Status |
| ------------------------------------------------------------------- | ----- | ------ |
| `scripts/extensions/trend-finder/evidence-assets.ts`                | Yes   | PASS   |
| `scripts/extensions/trend-finder/__tests__/evidence-assets.test.ts` | Yes   | PASS   |
| `scripts/lib/trend-finder-asset-bridge.ts`                          | Yes   | PASS   |
| `scripts/lib/__tests__/trend-finder-asset-bridge.test.ts`           | Yes   | PASS   |
| `src/extensions/trend-finder/components/evidence-asset-preview.tsx` | Yes   | PASS   |
| `src/extensions/trend-finder/schema.ts`                             | Yes   | PASS   |
| `src/extensions/trend-finder/engine-trace.ts`                       | Yes   | PASS   |
| `scripts/extensions/trend-finder/sources/types.ts`                  | Yes   | PASS   |
| `scripts/extensions/trend-finder/sources/apify-normalizers.ts`      | Yes   | PASS   |
| `scripts/extensions/trend-finder/collector.ts`                      | Yes   | PASS   |
| `src/extensions/trend-finder/view-model.ts`                         | Yes   | PASS   |
| `src/extensions/trend-finder/components/evidence-links.tsx`         | Yes   | PASS   |
| `src/extensions/trend-finder/engine-replay-model.ts`                | Yes   | PASS   |
| `src/extensions/trend-finder/views/engine-replay-view.tsx`          | Yes   | PASS   |
| `src/extensions/trend-finder/fixtures.ts`                           | Yes   | PASS   |
| `src/data/live-data.example.json`                                   | Yes   | PASS   |
| `vite.config.ts`                                                    | Yes   | PASS   |
| `docs/extensions/trend-finder-ui-surfaces.md`                       | Yes   | PASS   |
| `docs/extensions/trend-finder-pipeline.md`                          | Yes   | PASS   |
| `docs/extensions/trend-finder-runtime-and-provenance.md`            | Yes   | PASS   |

### Missing Deliverables

None

***

## 3. ASCII Encoding Check

### Status: PASS

| File                                                                | Encoding    | Line Endings | Status |
| ------------------------------------------------------------------- | ----------- | ------------ | ------ |
| `scripts/extensions/trend-finder/evidence-assets.ts`                | ASCII       | LF           | PASS   |
| `scripts/extensions/trend-finder/__tests__/evidence-assets.test.ts` | ASCII       | LF           | PASS   |
| `scripts/lib/trend-finder-asset-bridge.ts`                          | ASCII       | LF           | PASS   |
| `scripts/lib/__tests__/trend-finder-asset-bridge.test.ts`           | ASCII       | LF           | PASS   |
| `src/extensions/trend-finder/components/evidence-asset-preview.tsx` | ASCII       | LF           | PASS   |
| `src/extensions/trend-finder/schema.ts`                             | ASCII       | LF           | PASS   |
| `src/extensions/trend-finder/engine-trace.ts`                       | ASCII       | LF           | PASS   |
| `scripts/extensions/trend-finder/sources/types.ts`                  | ASCII       | LF           | PASS   |
| `scripts/extensions/trend-finder/sources/apify-normalizers.ts`      | ASCII       | LF           | PASS   |
| `scripts/extensions/trend-finder/collector.ts`                      | ASCII       | LF           | PASS   |
| `src/extensions/trend-finder/view-model.ts`                         | ASCII       | LF           | PASS   |
| `src/extensions/trend-finder/components/evidence-links.tsx`         | ASCII       | LF           | PASS   |
| `src/extensions/trend-finder/engine-replay-model.ts`                | ASCII       | LF           | PASS   |
| `src/extensions/trend-finder/views/engine-replay-view.tsx`          | ASCII       | LF           | PASS   |
| `src/extensions/trend-finder/fixtures.ts`                           | ASCII       | LF           | PASS   |
| `src/data/live-data.example.json`                                   | ASCII bytes | LF           | PASS   |
| `vite.config.ts`                                                    | ASCII       | LF           | PASS   |
| `docs/extensions/trend-finder-ui-surfaces.md`                       | ASCII       | LF           | PASS   |
| `docs/extensions/trend-finder-pipeline.md`                          | ASCII       | LF           | PASS   |
| `docs/extensions/trend-finder-runtime-and-provenance.md`            | ASCII       | LF           | PASS   |

### Encoding Issues

None

***

## 4. Test Results

### Status: PASS

| Metric      | Value |
| ----------- | ----- |
| Total Tests | 3023  |
| Passed      | 3023  |
| Failed      | 0     |
| Coverage    | N/A   |

### Failed Tests

None

***

## 5. Database/Schema Alignment

### Status: N/A

No DB-layer changes were introduced in this session.

### Issues Found

N/A -- no DB-layer changes

***

## 6. Success Criteria

From `spec.md`:

### Functional Requirements

* [x] Legacy Trend Finder payloads parse with empty/unavailable asset defaults.
* [x] Evidence items carry validated browser-safe asset metadata and opaque local bridge URLs only.
* [x] Asset manifest reads, writes, and pruning stay contained under explicit generated asset roots.
* [x] Requests outside allowed roots, unsupported content types, unsupported methods, invalid tokens, non-loopback addresses, and missing files fail closed.
* [x] Engine Replay and evidence cards show fallback labels for unsupported, blocked, missing, failed, unavailable, and pruned assets.
* [x] Current unapproved media fields remain blocked or unsupported rather than becoming browser-visible media.

### Testing Requirements

* [x] Unit tests cover asset schema validation, manifest write/read, safe ID derivation, path containment, stale pruning, and blocked states.
* [x] Bridge tests cover loopback, token, method, path traversal, content-type allowlist, missing file, oversized file, and headers.
* [x] Schema and collector tests prove asset defaults, summaries, warnings, and legacy payload compatibility.
* [x] View-model and UI tests cover available, unsupported, blocked, failed, missing, pruned, empty, degraded, and offline states.

### Quality Gates

* [x] All deliverables are ASCII-encoded.
* [x] All deliverables use Unix LF line endings.
* [x] Code follows project conventions at a spot-check level.

***

## 7. Conventions Compliance

### Status: PASS

No obvious naming, structure, error-handling, or testing convention violations were found in the reviewed surface.

***

## 8. Security and GDPR

### Status: PASS / N/A

* Security review passed with no findings.
* GDPR is N/A because no personal data was collected or processed.

***

## 9. Behavioral Quality

### Status: PASS

Spot-check of the new bridge, manifest, view-model, and replay paths found no obvious trust-boundary, cleanup, mutation-safety, or failure-path regressions.


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