# Project State

## Project Summary

**Building:** Brownfield support for GSD - `/gsd:map-codebase` workflow that analyzes existing codebases using parallel Explore agents, producing structured `.planning/codebase/` documents.

**Core requirements:**
- `/gsd:map-codebase` produces useful codebase documents from any codebase
- Documents are focused (<100 lines each) and easy to update incrementally
- `/gsd:new-project` detects existing code and offers mapping
- `/gsd:plan-phase` loads relevant codebase context automatically
- Codebase map updates after plan execution

**Constraints:**
- Explore agents required for initial mapping
- Each codebase map file must stay under ~100 lines
- Only load relevant codebase sections into phase planning
- Follow existing GSD command/workflow/template patterns

## Current Position

Phase: 14 of 14 (Researcher Agent)
Plan: 1 of 3 in current phase
Status: In progress
Last activity: 2026-01-15 - Completed 14-01-PLAN.md

Progress: █████████████████████████░░ 31/33 plans (~94%)

## Performance Metrics

**Velocity:**
- Total plans completed: 23
- Average duration: 3.7 min
- Total execution time: 85 min

**By Phase:**

| Phase | Plans | Total | Avg/Plan |
|-------|-------|-------|----------|
| 1 | 3 | 9 min | 3 min |
| 2 | 2 | 5 min | 2.5 min |
| 3 | 1 | 2 min | 2 min |
| 4 | 2 | 7 min | 3.5 min |
| 5 | 2 | 5 min | 2.5 min |
| 6 | 2 | 4 min | 2 min |
| 7 | 1 | 4 min | 4 min |
| 8 | 1 | 1 min | 1 min |
| 9 | 1 | 3 min | 3 min |
| 10 | 4 | 33 min | 8.3 min |
| 11 | 4 | 12 min | 3 min |
| 99 | 3 | 1 min | <1 min (parallel) |

**Recent Trend:**
- Last 5 plans: 11-02 (2m), 11-03 (3m), 11-04 (3m), 99-01/02/03 (<1m parallel)
- Trend: Parallel execution dramatically faster

*Updated after each plan completion*

## Accumulated Context

### Decisions Made

| Phase | Decision | Rationale |
|-------|----------|-----------|
| 0 | Folder with focused files | Easier to update incrementally than monolithic file |
| 0 | Update after plan execution | Fits existing STATE.md update pattern |
| 0 | Parallel Explore agents | Thoroughness for initial mapping |
| 0 | Selective context loading | Avoid loading irrelevant sections |
| 6 | Frontmatter with dependency graph | Enable automatic context assembly via transitive closure |
| 6 | Intelligent summary selection | Scan frontmatter, build graph, auto-select relevant phases |
| 8 | Active milestone details in ROADMAP.md | Single source of truth during development, archive only on completion |
| 9 | Phase-scoped UAT issues | Keep UAT findings tied to specific plan, not global ISSUES.md |
| 10 | git mv preserves history | Rename workflow while keeping git history intact |
| 10 | execute-plan = single, execute-phase = parallel | Clear naming for single-plan vs multi-plan execution |
| 10 | Agent-history v1.2 schema | Extended for parallel tracking, dependencies, resume support |
| 11 | Frontmatter parallelization markers | parallelizable, depends_on, files_exclusive in plan template |
| 11 | Vertical slices over workflow stages | Maximize independence when parallelization enabled |
| 11 | SUMMARY references only when needed | Avoid reflexive sequential chains |
| 13 | Consolidated debugging expertise to 990 lines | Complete methodology with 59% reduction from source material |
| 13 | Thin orchestrator pattern for /gsd:debug | Orchestrator <200 lines, expertise in agent - reduces main context from ~2,400 to ~150 |
| 13 | Deprecated reference files with redirect notices | No duplicate content between references and agent |
| 14 | 4 explicit research modes | Ecosystem, feasibility, implementation, comparison cover all needs |
| 14 | Context7 > Official > WebSearch hierarchy | Prevents hallucination with authoritative sources first |
| 14 | 902 lines from ~1,200 source (25% reduction) | Preserved all concepts while removing redundancy |

### Deferred Issues

None yet.

### Blockers/Concerns Carried Forward

None yet.

### Roadmap Evolution

- Phase 4 added: Plan-phase optimizations (~37% context reduction target)
- Phase 5 added: TDD instructions for appropriate test-driven development
- Phase 6 added: Frontmatter and related system upgrade
- Phase 7 added: Backfill existing summaries with frontmatter
- Phase 8 added: Improve roadmap system
- Phase 9 added: Integrate verify-work (community contribution from OracleGreyBeard)
- Phase 10 added: Parallel phase execution (rename workflow, create /gsd:execute-phase with parallelization)
- Phase 11 added: Parallel-aware planning (update plan-phase.md to create parallelizable plans when enabled)
- Phase 12 added: Changelog & update awareness (remote changelog fetch, /gsd:whats-new, publish workflow integration)
- Phase 13 added: Dedicated debug agent (gsd-debugger with baked-in expertise, thin orchestrator pattern)
- Phase 14 added: Dedicated researcher agent (gsd-researcher with research methodology, tool strategy, output formats)

## Project Alignment

Last checked: Project start
Status: ✓ Aligned
Assessment: No work done yet - baseline alignment.
Drift notes: None

## Session Continuity

Last session: 2026-01-15
Stopped at: Completed 14-01-PLAN.md
Resume file: None