> 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/phase28-session04-topic-noise-gate-and-visibility-bands/security-compliance.md).

# Security & Compliance Report

**Session ID**: `phase28-session04-topic-noise-gate-and-visibility-bands` **Reviewed**: 2026-06-14 **Result**: PASS

***

## Scope

**Files reviewed** (session deliverables and supporting tests only):

* `scripts/lib/ai-runtime/topic-quality.ts` - deterministic topic-quality and visibility helper.
* `scripts/lib/ai-runtime/scoring.ts` - scoring integration and bounded downrank output.
* `scripts/lib/ai-runtime/risk-flags.ts` - topic-quality risk-flag integration.
* `scripts/lib/ai-runtime/__tests__/topic-quality.test.ts` - helper coverage.
* `scripts/lib/ai-runtime/__tests__/scoring.test.ts` - scoring integration coverage.
* `scripts/lib/ai-runtime/__tests__/scoring-calibration.test.ts` - scoring-version calibration coverage.
* `src/extensions/trend-finder/schema.ts` - additive payload defaults and bounded enums.
* `src/extensions/trend-finder/view-model.ts` - browser-safe labels and summaries.
* `src/extensions/trend-finder/components/trend-card.tsx` - topic-quality chips.
* `src/extensions/trend-finder/views/trends-view.tsx` - default-hidden suppressed rows and deep-link handling.
* `src/extensions/trend-finder/signal-workbench-model.ts` - Workbench filters and sort keys.
* `src/extensions/trend-finder/components/signal-workbench-controls.tsx` - Workbench filter controls.
* `src/extensions/trend-finder/components/suppressed-noise-summary.tsx` - suppressed-noise summary control.
* `src/extensions/trend-finder/components/__tests__/suppressed-noise-summary.test.tsx` - component coverage.
* `src/extensions/trend-finder/__tests__/view-model.test.ts` - schema/view-model coverage.
* `src/extensions/trend-finder/__tests__/signal-workbench-model.test.ts` - Workbench model coverage.
* `src/extensions/trend-finder/fixtures.ts` - representative quality and visibility fixtures.
* `docs/extensions/trend-finder-scoring.md` - shipped behavior documentation.

**Review method**: Static analysis of session deliverables, security-sensitive pattern scan, dependency-change check, focused behavioral review, and final automated gates.

***

## Security Assessment

### Overall: PASS

| Category                      | Status | Severity | Details                                                                                                                                                                         |
| ----------------------------- | ------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Injection (SQLi, CMDi, LDAPi) | PASS   | --       | No SQL, shell execution, LDAP, dynamic function execution, or raw query construction added.                                                                                     |
| Hardcoded Secrets             | PASS   | --       | No credentials or token-shaped values added. Existing fixture text names missing `APIFY_TOKEN` only as a placeholder/error label.                                               |
| Sensitive Data Exposure       | PASS   | --       | New browser payload fields are bounded enums, scores, booleans, reason codes, and short labels. No raw source dumps, private paths, prompts, or secret-like values are exposed. |
| Insecure Dependencies         | PASS   | --       | No package manager files changed and no new dependency was introduced.                                                                                                          |
| Security Misconfiguration     | PASS   | --       | No CORS, auth, debug, header, storage, or deployment configuration changes.                                                                                                     |

### Findings

No security findings.

***

## GDPR Compliance Assessment

### Overall: N/A

*N/A because this session introduced no new personal data collection, storage, consent flow, third-party data transfer, or user profiling. It only derives bounded quality and visibility metadata from existing Trend Finder topic/evidence payloads.*

| Category                   | Status | Details                                         |
| -------------------------- | ------ | ----------------------------------------------- |
| Data Collection & Purpose  | N/A    | No new personal data collection.                |
| Consent Mechanism          | N/A    | No new consent-requiring storage or processing. |
| Data Minimization          | PASS   | New fields are bounded derived metadata only.   |
| Right to Erasure           | N/A    | No new persistence or user records.             |
| PII in Logs                | PASS   | No new logging of personal data.                |
| Third-Party Data Transfers | N/A    | No new network calls or external services.      |

### Personal Data Inventory

No personal data collected or processed in this session.

### Findings

No GDPR findings.

***

## Recommendations

None - session is compliant.

***

## Sign-Off

* **Result**: PASS
* **Reviewed by**: AI validation (validate)
* **Date**: 2026-06-14


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