---
kind: epic
slug: model-provider-registry
title: Model provider registry and per-role routing
plan_slug: automation-foundation
status: done
priority: P1
tenant_id: global
cursor_epic_id: null
updated_at: "2026-07-03"
agent_prompt: |
  Epic: model provider registry (docs/adr-model-routing.md). Server-only change —
  no UI component library inventing; reuse components/ui/. Admin-only mutations.
  Filter every DB query by workspace_id. One task per session; claim_task first.
---

# Epic objective

Deliver the workspace-scoped **model provider registry** and **role → alias routing** described in [docs/adr-model-routing.md](../../../docs/adr-model-routing.md): Drizzle schema, zod types in `packages/shared`, `resolveModel()`, tRPC CRUD + `testProvider`, Settings UI, and `agent_runs` model metadata on completion.

This epic is the first shipped piece of the automation-foundation plan and unblocks future orchestrator/worker work.

## In scope / out of scope

**In scope**

- Tables `model_providers`, `role_model_routes`.
- Pure resolver + unit tests.
- tRPC router (workspace admin).
- Settings pages: Providers, Role routing.
- Seed/default routes for nine L2 roles + `gate-copilot` + `chat-default`.
- `complete_task` optional model logging fields.
- `.env.example` env var documentation.

**Out of scope**

- Orchestrator dispatch (consumes resolver later).
- Worker inference loop.
- Parsing `model_policy` from `.convoys/*.md` files (orchestrator reads later).
- Billing/budget enforcement.

## Related tasks

| Task | Link |
|------|------|
| Shared schemas and resolveModel | `./Task-shared-schemas-resolve-model.md` |
| DB schema and migration | `./Task-db-model-providers-migration.md` |
| tRPC models router | `./Task-trpc-models-router.md` |
| Settings — providers UI | `./Task-settings-ai-providers-ui.md` |
| Settings — role routing UI | `./Task-settings-role-routing-ui.md` |
| agent_runs model fields + MCP | `./Task-agent-runs-model-logging.md` |

## Dependencies

- Depends on: existing auth + workspace admin patterns in `apps/web`.
- Blocks: orchestrator epic (needs `resolveModel`), worker epic (needs `ResolvedModel`).

## Acceptance criteria

- [ ] Admin can create `claude-planning` (anthropic) and `qwen-coder` (openai_compatible + base URL) in a workspace.
- [ ] Admin can map `role-implementer` → `qwen-coder`, `role-architect` → `claude-planning`.
- [ ] `testProvider` returns success/failure without exposing API keys.
- [ ] `resolveModel()` unit tests cover override order and missing-alias error.
- [ ] At least one task in this epic completed via `claim_task` → `complete_task` with model metadata.

## Proposed timeline

| Phase | Window | Notes |
|-------|--------|-------|
| Schema + resolver | Session 1–2 | Tasks: shared schemas, migration |
| API | Session 3 | tRPC router |
| UI | Session 4–5 | Both settings pages |
| Logging | Session 6 | agent_runs + MCP |

## Pipeline / convoy mapping

When running via agent-pipeline, architect briefs should align to tasks:

| Brief # | Task slug |
|---------|-----------|
| 1 | `shared-schemas-resolve-model` |
| 2 | `db-model-providers-migration` |
| 3 | `trpc-models-router` |
| 4 | `settings-ai-providers-ui` |
| 5 | `settings-role-routing-ui` |
| 6 | `agent-runs-model-logging` |

Briefs 1–2 serial (schema depends on types); 4–5 can fan out after brief 3 if `files:` are disjoint.