docs(agents): add codex agents guide

Mirror CLAUDE.md as AGENTS.md so Codex-family agents pick up the same
commands, structure, and constraints (sans CLAUDE-specific rule paths).

AGENTS.md

@@ -1,4 +1,52 @@
-# openconcho Agent Notes
+# openconcho
+
+Frontend UI for self-hosted Honcho instances — browse memories, peers, sessions, conclusions, and chat with memory context. Ships as a web app (`@openconcho/web`) and a Tauri desktop wrapper (`@openconcho/desktop`).
+
+## Commands
+
+`make` is the canonical interface; it shells out to pnpm scripts which shell out to turborepo. CI calls the same targets — `make help` lists everything.
+
+| Command | Purpose |
+|---------|---------|
+| `make bootstrap` | Install deps + Playwright Chromium (run once after clone) |
+| `make dev-web` | Vite dev server on http://localhost:5173 |
+| `make dev-desktop` (or `make dev`) | Tauri desktop app |
+| `make build` | Turbo: build web + desktop |
+| `make lint` | Biome check |
+| `make typecheck` | tsc --noEmit |
+| `make test` | Vitest (unit + integration), excludes `e2e/` |
+| `make test-e2e` | Playwright e2e (uncached) |
+| `make check` | lint + typecheck + test |
+| `pnpm --filter @openconcho/desktop cargo-check` | Local Rust/Tauri compile check before pushing desktop changes |
+| `pnpm --filter @openconcho/web generate:api` | Regen `src/api/schema.d.ts` from `openapi.json` |
+
+## Structure
+
+| Path | Purpose |
+|------|---------|
+| `packages/web/` | Vite + React 19 + TanStack Router/Query SPA |
+| `packages/web/src/routes/` | TanStack Router file-based routes (flat-route syntax) |
+| `packages/web/src/components/` | Feature components grouped by domain |
+| `packages/web/src/api/` | openapi-fetch client + TanStack Query hooks |
+| `packages/web/src/lib/` | Config (localStorage) + theme utilities |
+| `packages/web/src/hooks/` | Custom React hooks |
+| `packages/web/src/test/` | Vitest unit/integration tests + setup |
+| `packages/web/e2e/` | Playwright e2e specs |
+| `packages/desktop/` | Tauri shell that bundles the built web app |
+| `.claude/rules/` | Coding conventions (auto-loaded; stack-agnostic, applies to all agents) |
+| `docs/` | Architecture and references |
+
+## Code Style
+
+Read `.claude/rules/coding-standards.md` when writing or reviewing any code file.
+
+## Workflows
+
+Read `.claude/rules/workflows.md` for recurring task patterns.
+
+## Architecture
+
+Read `docs/architecture.md` for component overview, data flow, and design decisions.
 
 ## CI policy
 
@@ -7,10 +55,21 @@
 
 ## Required local preflight
 
-- Before pushing any change under `packages/desktop/**` or `packages/desktop/src-tauri/**`, run:
+Before pushing any change under `packages/desktop/**` or `packages/desktop/src-tauri/**`, run:
-  - `pnpm --filter @openconcho/desktop cargo-check`
 
-## Useful commands
+- `pnpm --filter @openconcho/desktop cargo-check`
 
-- `make ci-web` — matches current PR CI
+`make ci-web` matches current PR CI.
-- `pnpm --filter @openconcho/desktop cargo-check` — local desktop compile check
+
+## Key Constraints
+
+- **No hardcoded URLs** — all connection config lives in `localStorage` under `openconcho:config`
+- **TanStack Router flat-route params** — always cast `params` as `as never` at `navigate()` and `<Link>` callsites
+- **`framer-motion` Variants typing** — import `type Variants` and annotate objects; never use `as const` on variant objects
+- **Auth is optional** — token header only sent when non-empty; `checkConnection()` detects if auth is required
+- **CSS variables only** — no Tailwind color utilities for theme-aware colors; use `var(--text-1)` etc.
+- **Shared deps via pnpm catalog** — version-pinned in `pnpm-workspace.yaml`; reference as `"catalog:"` in package.json
+- **Conventional commits enforced** — commitlint runs in husky `commit-msg`; body lines must be ≤100 chars
+- **Releases via semantic-release** — `.releaserc.json`; commits land on `main`, no manual version bumps
+- **GitHub account** — push under `offendingcommit` (`gh auth switch` if needed)
+- **Desktop preflight is local** — Rust/Tauri compile-check no longer runs in PR CI; run `pnpm --filter @openconcho/desktop cargo-check` before pushing any `packages/desktop/**` or `packages/desktop/src-tauri/**` change