# Agent Provider Adapter — Progress

## Session Log

### 2026-03-11 — Planning Phase

**Duration:** ~30 min

**What happened:**
1. Explored 13+ files across Rust backend, TypeScript bridges, Svelte UI, and JS sidecar to map Claude-specific coupling
2. Classified coupling into 4 severity levels (CRITICAL/HIGH/MEDIUM/LOW)
3. Ran /ultra-think for deep architectural analysis — evaluated 3 design options for sidecar routing, message adapters, and settings UI
4. Made 6 architecture decisions (PA-1 through PA-6)
5. Created 3-phase implementation plan (16 + 5 + 3 tasks)
6. Created planning files: task_plan.md, findings.md, progress.md

**Architecture decisions made:**
- PA-1: Per-provider sidecar binaries (not single multi-SDK bundle)
- PA-2: Generic provider_config blob in AgentQueryOptions
- PA-3: Per-provider message adapter files → common AgentMessage type
- PA-4: Provider selection per-project with global default
- PA-5: Capability flags drive UI rendering (not provider ID checks)
- PA-6: Providers section in SettingsTab scroll (not inner tabs)

**Status:** Planning complete. Ready for Phase 1 implementation.