# Architecture Analysis — Coordination Plan

## Analysis Configuration
- **Project**: Filigree — Agent-native issue tracker (v1.4.0)
- **Scope**: `src/filigree/` (~20K LOC Python) + `tests/` + static dashboard
- **Deliverables**: Option A (Full Analysis) — Discovery, Catalog, Diagrams, Report
- **Strategy**: Parallel (8 subsystems, loosely coupled)
- **Complexity estimate**: Medium (clear layering, mixin decomposition, multiple interface layers)

## Identified Subsystems

| # | Subsystem | Key Files | LOC (approx) |
|---|-----------|-----------|------|
| 1 | **Core DB Layer** | `core.py`, `db_base.py`, `db_issues.py`, `db_files.py`, `db_events.py`, `db_planning.py`, `db_meta.py`, `db_schema.py`, `db_workflow.py` | ~4,700 |
| 2 | **Type System** | `types/core.py`, `types/api.py`, `types/events.py`, `types/files.py`, `types/inputs.py`, `types/planning.py`, `types/workflow.py` | ~1,800 |
| 3 | **Workflow Templates** | `templates.py`, `templates_data.py` | ~2,500 |
| 4 | **CLI** | `cli.py`, `cli_common.py`, `cli_commands/{issues,planning,meta,workflow,admin,server}.py` | ~2,700 |
| 5 | **MCP Server** | `mcp_server.py`, `mcp_tools/{issues,files,meta,planning,workflow,common}.py` | ~3,100 |
| 6 | **Dashboard (API)** | `dashboard.py`, `dashboard_routes/{issues,files,analytics,releases,common}.py` | ~2,200 |
| 7 | **Dashboard (Frontend)** | `static/dashboard.html` | ~540 |
| 8 | **Infrastructure** | `install.py`, `install_support/`, `hooks.py`, `ephemeral.py`, `server.py`, `scanners.py`, `migrate.py`, `migrations.py`, `summary.py`, `analytics.py`, `validation.py`, `logging.py` | ~3,000 |

## Execution Log
- 2026-03-02 17:37 — Created workspace
- 2026-03-02 17:37 — User selected Option A (Full Analysis)
- 2026-03-02 17:38 — Holistic scan complete, 8 subsystems identified
- 2026-03-02 17:38 — Strategy: Parallel (subsystems are loosely coupled)
- 2026-03-02 17:39 — Dispatching 4 parallel analysis subagents
- 2026-03-02 17:42 — Templates+CLI agent completed (2 subsystems)
- 2026-03-02 17:42 — Infrastructure agent completed (1 subsystem)
- 2026-03-02 17:43 — Core DB+Types agent completed (2 subsystems)
- 2026-03-02 17:44 — MCP+Dashboard agent completed (3 subsystems)
- 2026-03-02 17:44 — All 8 subsystems analyzed; assembling catalog, diagrams, report
- 2026-03-02 17:46 — Deliverables written: 01-discovery, 02-catalog, 03-diagrams, 04-report
- 2026-03-02 17:47 — Validation agent dispatched
- 2026-03-02 17:51 — Validation: PASS_WITH_NOTES (7 non-blocking findings, 0 blockers)

## Validation Summary
Verdict: **PASS_WITH_NOTES** — structurally sound and comprehensive. 7 non-blocking count discrepancies (TypedDict class vs export counts, CLI LOC total, table count). No architectural conclusions affected. See `temp/validation-final.md` for details.
