# Backlog Item 043: Package-by-package architecture review

## Summary
Produce an independent, evidence-based architecture review for each package in the AbstractFramework monorepo, including diagrams and actionable recommendations.

## Reason
Stakeholders need a consistent, package-level view of strengths, gaps, and next steps. A structured review reduces ambiguity, improves roadmap prioritization, and highlights cross-package integration risks early.

## Scope
### In scope
- One report per package with a consistent template.
- Evidence register for every claim (citations from README/config/code).
- Diagram per package derived from documented architecture.
- Recommendations with explicit justification and references to evidence.

### Out of scope
- Code changes or refactors.
- Dependency upgrades.
- New ADRs (only propose where relevant).

## Dependencies
- Access to package docs/README/configs in this repo.
- Markdown rendering for Mermaid diagrams.
- `untracked/` directory for report artifacts.

## Expected Outcomes
- Reports written to `untracked/2026-02-20-ca-<package>.md` for all packages listed above.
- Backlog item moved to `docs/backlog/completed/` with a full report appended.
- `AGENTS.md` updated with notable architectural insights or risks discovered.

## Full Report
- **Summary**: Completed evidence-based architecture reviews for 15 packages, each with an evidence register, architecture snapshot, good/bad analysis, and justified recommendations.
- **Deliverables**: `untracked/2026-02-20-ca-abstractagent.md`, `untracked/2026-02-20-ca-abstractassistant.md`, `untracked/2026-02-20-ca-abstractcode.md`, `untracked/2026-02-20-ca-abstractcore.md`, `untracked/2026-02-20-ca-abstractflow.md`, `untracked/2026-02-20-ca-abstractframework.md`, `untracked/2026-02-20-ca-abstractgateway.md`, `untracked/2026-02-20-ca-abstractmemory.md`, `untracked/2026-02-20-ca-abstractmusic.md`, `untracked/2026-02-20-ca-abstractobserver.md`, `untracked/2026-02-20-ca-abstractruntime.md`, `untracked/2026-02-20-ca-abstractsemantics.md`, `untracked/2026-02-20-ca-abstractuic.md`, `untracked/2026-02-20-ca-abstractvision.md`, `untracked/2026-02-20-ca-abstractvoice.md`.
- **Evidence Basis**: Findings are grounded in package READMEs and metadata files (e.g., `abstractframework/__init__.py`, `abstractobserver/package.json`, `abstractuic/package.json`) with direct citations in each report.
- **ADR Proposals**: Each report includes ADR recommendations where design decisions appear foundational.
- **Knowledge Base**: Added cross-cutting notes to `AGENTS.md` for release pinning, stability signals, gateway-only UI constraints, and AbstractUIC test coverage.
- **Tests**: Not run (documentation-only change; no executable code paths touched).
