> 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-session02-deterministic-derived-signals-and-risk-flags/validation.md).

# Validation Report

**Session ID**: `phase27-session02-deterministic-derived-signals-and-risk-flags` **Validated**: 2026-06-12 **Result**: PASS

***

## Validation Summary

| Check                     | Status | Notes                                                                                     |
| ------------------------- | ------ | ----------------------------------------------------------------------------------------- |
| Tasks Complete            | PASS   | 20/20 tasks                                                                               |
| Files Exist               | PASS   | 18/18 spec deliverables                                                                   |
| ASCII Encoding            | PASS   | All deliverables and changed session files are ASCII with LF endings                      |
| Tests Passing             | PASS   | 3334/3334 tests                                                                           |
| Database/Schema Alignment | N/A    | N/A - no DB-layer changes                                                                 |
| Quality Gates             | PASS   | `bun run test`, `bun run typecheck`, and `bun run typecheck:scripts` passed               |
| Conventions               | PASS   | Spot-check found no obvious convention violations                                         |
| Security & GDPR           | PASS   | Security PASS, GDPR N/A                                                                   |
| Behavioral Quality        | PASS   | Derived signal trust boundaries, failure paths, mutation safety, and UI contracts checked |

**Overall**: PASS

***

## 1. Task Completion

### Status: PASS

| Category       | Required | Completed | Status |
| -------------- | -------- | --------- | ------ |
| Setup          | 2        | 2         | PASS   |
| Foundation     | 5        | 5         | 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/risk-flags.ts`                                 | Yes   | PASS   |
| `scripts/lib/ai-runtime/__tests__/risk-flags.test.ts`                  | Yes   | PASS   |
| `src/extensions/trend-finder/schema.ts`                                | Yes   | PASS   |
| `scripts/lib/ai-runtime/scoring.ts`                                    | Yes   | PASS   |
| `scripts/lib/ai-runtime/source-breakdown.ts`                           | Yes   | PASS   |
| `src/extensions/trend-finder/view-model.ts`                            | Yes   | PASS   |
| `src/extensions/trend-finder/components/trend-card.tsx`                | Yes   | PASS   |
| `src/extensions/trend-finder/components/source-breakdown.tsx`          | Yes   | PASS   |
| `src/extensions/trend-finder/views/hidden-gems-view.tsx`               | Yes   | PASS   |
| `src/extensions/trend-finder/signal-workbench-model.ts`                | Yes   | PASS   |
| `src/extensions/trend-finder/components/signal-workbench-controls.tsx` | Yes   | PASS   |
| `src/extensions/trend-finder/components/signal-workbench-table.tsx`    | Yes   | PASS   |
| `src/extensions/trend-finder/fixtures.ts`                              | Yes   | PASS   |
| `scripts/lib/ai-runtime/__tests__/scoring.test.ts`                     | Yes   | PASS   |
| `scripts/lib/ai-runtime/__tests__/source-breakdown.test.ts`            | Yes   | PASS   |
| `src/extensions/trend-finder/__tests__/view-model.test.ts`             | Yes   | PASS   |
| `src/extensions/trend-finder/__tests__/signal-workbench-model.test.ts` | Yes   | PASS   |
| `src/lib/__tests__/trend-finder-schema.test.ts`                        | Yes   | PASS   |

### Missing Deliverables

None.

***

## 3. ASCII Encoding Check

### Status: PASS

| File                                                                   | Encoding | Line Endings | Status |
| ---------------------------------------------------------------------- | -------- | ------------ | ------ |
| `scripts/lib/ai-runtime/risk-flags.ts`                                 | ASCII    | LF           | PASS   |
| `scripts/lib/ai-runtime/__tests__/risk-flags.test.ts`                  | ASCII    | LF           | PASS   |
| `src/extensions/trend-finder/schema.ts`                                | ASCII    | LF           | PASS   |
| `scripts/lib/ai-runtime/scoring.ts`                                    | ASCII    | LF           | PASS   |
| `scripts/lib/ai-runtime/source-breakdown.ts`                           | ASCII    | LF           | PASS   |
| `src/extensions/trend-finder/view-model.ts`                            | ASCII    | LF           | PASS   |
| `src/extensions/trend-finder/components/trend-card.tsx`                | ASCII    | LF           | PASS   |
| `src/extensions/trend-finder/components/source-breakdown.tsx`          | ASCII    | LF           | PASS   |
| `src/extensions/trend-finder/views/hidden-gems-view.tsx`               | ASCII    | LF           | PASS   |
| `src/extensions/trend-finder/signal-workbench-model.ts`                | ASCII    | LF           | PASS   |
| `src/extensions/trend-finder/components/signal-workbench-controls.tsx` | ASCII    | LF           | PASS   |
| `src/extensions/trend-finder/components/signal-workbench-table.tsx`    | ASCII    | LF           | PASS   |
| `src/extensions/trend-finder/fixtures.ts`                              | ASCII    | LF           | PASS   |
| `scripts/lib/ai-runtime/__tests__/scoring.test.ts`                     | ASCII    | LF           | PASS   |
| `scripts/lib/ai-runtime/__tests__/source-breakdown.test.ts`            | ASCII    | LF           | PASS   |
| `src/extensions/trend-finder/__tests__/view-model.test.ts`             | ASCII    | LF           | PASS   |
| `src/extensions/trend-finder/__tests__/signal-workbench-model.test.ts` | ASCII    | LF           | PASS   |
| `src/lib/__tests__/trend-finder-schema.test.ts`                        | ASCII    | LF           | PASS   |

### Encoding Issues

None. A second scan across all changed and untracked session files also found no non-ASCII or CRLF issues.

***

## 4. Test Results

### Status: PASS

| Metric      | Value   |
| ----------- | ------- |
| Total Tests | 3334    |
| Passed      | 3334    |
| Failed      | 0       |
| Coverage    | Not run |

### Commands

* `bun run test` - passed, 268 files / 3334 tests.
* `bun run typecheck` - passed.
* `bun run typecheck:scripts` - passed.

### Failed Tests

None.

***

## 5. Database/Schema Alignment

### Status: N/A

*N/A because the session changed Trend Finder runtime/UI schema and generated payload parsing only. It introduced no persisted database shape, migrations, indexes, seeds, or ORM metadata changes.*

* [x] Matching schema artifact exists for each relevant DB-layer change
* [x] Code and schema artifacts are aligned
* [x] Migration/status/diff check passed locally
* [x] Seed or rollback updates included when conventions require them

### Issues Found

N/A - no DB-layer changes.

***

## 6. Success Criteria

From spec.md:

### Functional Requirements

* [x] Saturation, hidden-gem score, consensus ratio, role shares, builder signal, and risk flags derive deterministically from existing run data.
* [x] The weighted six-factor opportunity score and score weights are unchanged.
* [x] Degraded runs calculate consensus ratio against healthy current-run sources only.
* [x] Topics without evidence or denominator support render explicit unavailable labels rather than fake zero signals.
* [x] Hidden Gems ordering uses continuous hidden-gem score first, then stable tie-breakers.
* [x] Cards and Workbench show risk flags as bounded chips, with no free-form AI-generated rationale.
* [x] Legacy payloads that omit the new fields parse with safe defaults.

### Testing Requirements

* [x] Script tests cover saturation, hidden-gem score, consensus ratio, role shares, and risk flags.
* [x] Schema tests cover omitted-field defaults and unknown/invalid risk flag rejection or fallback behavior.
* [x] View-model tests cover labels, tones, empty/unavailable states, and deterministic Hidden Gems ordering.
* [x] Signal Workbench tests cover saturation/risk filters, facets, search, and stable sort tie-breakers.
* [x] Focused tests passed before full validation was attempted, per implementation notes.

### Quality Gates

* [x] All files ASCII-encoded.
* [x] Unix LF line endings.
* [x] Code follows project conventions.
* [x] `bun run test` passes.
* [x] `bun run typecheck` passes.
* [x] `bun run typecheck:scripts` passes.

***

## 7. Conventions Compliance

### Status: PASS

| Category       | Status | Notes                                                                                                   |
| -------------- | ------ | ------------------------------------------------------------------------------------------------------- |
| Naming         | PASS   | New names are descriptive and align with Trend Finder product language.                                 |
| File Structure | PASS   | Runtime helpers, UI components, fixtures, and tests remain in established locations.                    |
| Error Handling | PASS   | Risk flag input uses Zod validation; collector source-local derivation has a non-throwing warning path. |
| Comments       | PASS   | No obvious noisy comments or commented-out code in reviewed diffs.                                      |
| Testing        | PASS   | Focused tests live near the behavior they cover and assert externally visible contracts.                |

### 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/risk-flags.ts`, `scripts/lib/ai-runtime/scoring.ts`, `scripts/lib/ai-runtime/source-breakdown.ts`, `src/extensions/trend-finder/signal-workbench-model.ts`, `src/extensions/trend-finder/views/signal-workbench-view.tsx`

| Category           | Status | File                                                          | Details                                                                                                             |
| ------------------ | ------ | ------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------- |
| Trust boundaries   | PASS   | `scripts/lib/ai-runtime/risk-flags.ts`                        | Helper validates bounded input with Zod before deriving enum flags.                                                 |
| Resource cleanup   | PASS   | `src/extensions/trend-finder/views/signal-workbench-view.tsx` | New effect only resets local React state on run re-entry and acquires no external resource.                         |
| Mutation safety    | PASS   | `src/extensions/trend-finder/signal-workbench-model.ts`       | Row builders project derived fields without mutating source topics; existing non-mutation tests remain covered.     |
| Failure paths      | PASS   | `scripts/extensions/trend-finder/collector.ts`                | Source-local topic signal derivation now degrades through warnings instead of failing the whole run.                |
| Contract alignment | PASS   | `src/extensions/trend-finder/schema.ts`                       | Additive defaults distinguish unavailable `null` values from valid zero values and preserve legacy payload parsing. |

### Violations Found

None.

### Fixes Applied During Validation

None.

## Validation Result

### PASS

Session 02 satisfies the task checklist, deliverable, encoding, test, schema compatibility, security, GDPR, conventions, and behavioral quality checks.

### Required Actions (if FAIL)

None.

## Next Steps

Run updateprd to mark session complete.


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