# Review Cycle Final Report (Iterations 1-10)

Date: 2026-03-02T10:13:37Z  
Cycle: Hourly Plugin Security Review  
Scope: `video-research-mcp` MCP servers and supporting infrastructure

## Executive Summary
The 10-iteration cycle materially reduced high-risk exposure across trust boundaries, auth/secret handling, idempotency, cache integrity, prompt safety, concurrency limits, and regression harness reliability. Most originally high-impact findings are now mitigated with code + test coverage and merged to `main` (PR #41, commit `f4f95b3`). Remaining risk is concentrated in adversarial prompt corpus breadth and preserving policy-helper reuse in future tools.

## Iteration Outcomes (Condensed)
1. Architecture/trust boundaries: URL ingress policy enforcement added.
2. Validation/schema contracts: local filesystem boundary policy centralized.
3. External API failures/idempotency: typed network categorization + upload lock.
4. Auth/secrets: infra mutation gate + credential redaction.
5. Cache/data integrity: atomic writes + strict registry-shape hydration.
6. Error/fault isolation: structured preparation-failure visibility in document research.
7. Prompt injection/tool misuse: explicit anti-injection system guardrails in content/research flows.
8. Concurrency/resource exhaustion: source limits + bounded phase concurrency + tmp cleanup.
9. Regression blind spots: pre-follow redirect validation + tool unwrapping test fix.
10. Synthesis/remediation roadmap: consolidated security smoke suite for recurring runs.

## Prioritized Remediation Roadmap
## Priority 1 (High)
- Enforce smoke suite in CI
  - Action: Wire [`scripts/run_security_smoke.sh`](../../scripts/run_security_smoke.sh) into required PR checks.
  - Risk addressed: R-013 residual manual execution gap.
  - Status: Completed on 2026-03-02 via [`.github/workflows/ci.yml`](../../.github/workflows/ci.yml) (merged to `main` in PR #41).

- Preserve redirect policy invariants for future download helpers
  - Action: Add developer checklist item in tool-authoring docs requiring `url_policy.download_checked` reuse for any new URL download path.
  - Risk addressed: R-012 residual future divergence.
  - Status: Completed on 2026-03-02 in [`docs/tutorials/ADDING_A_TOOL.md`](../../docs/tutorials/ADDING_A_TOOL.md).

## Priority 2 (Medium)
- Expand adversarial prompt corpus across multi-pass tools
  - Action: Add shared malicious-content fixtures and cross-tool tests for content reshape, document synthesis, and knowledge summarization.
  - Risk addressed: R-010 residual prompt-only guardrail drift.
  - Target: Next cycle.

- Add policy inheritance checks for new tools
  - Action: Add tests/assertions ensuring new URL/path-taking tools call shared policy helpers (`validate_url`, `enforce_local_access_root`).
  - Risk addressed: R-001/R-003 residual regression through new code.
  - Target: Next cycle.

## Priority 3 (Low)
- Expand smoke suite progressively with minimal runtime increase
  - Action: Add one new high-signal check per future mitigation.
  - Risk addressed: Coverage staleness without bloating recurring checks.
  - Target: Ongoing.

## Residual Risk Snapshot
- High residual: none currently unmitigated in core reviewed paths.
- Medium residual:
  - Prompt-injection adversarial coverage breadth (R-010).
  - Policy inheritance drift risk when new URL/path-taking tools are added (R-001/R-003).
- Low residual:
  - Future-helper divergence risk for redirect/policy flows is reduced, but still relies on checklist discipline (R-012).
  - All-source failure handling still returns top-level error without partial context (R-006).

## Confidence Trajectory
- Start-of-cycle confidence (iteration 1 baseline): 0.55
- End-of-cycle operational confidence: 0.95
- Main drivers:
  - Shared policy primitives at ingress boundaries
  - Deterministic error categorization
  - Explicit control-plane authorization
  - Resource-envelope controls
  - Consolidated recurring smoke verification enforced in CI

## Deliverables Generated
- Iteration reports:
  - [`ops/review-cycle/iteration-10-report.md`](./iteration-10-report.md)
- Updated cycle memory:
  - [`ops/review-cycle/state.json`](./state.json)
  - [`ops/review-cycle/learning-log.md`](./learning-log.md)
  - [`ops/review-cycle/fix-playbook.md`](./fix-playbook.md)
  - [`ops/review-cycle/risk-register.md`](./risk-register.md)
  - [`ops/review-cycle/prompt-evolution.md`](./prompt-evolution.md)
