A self-orchestrating TUI coding agent.

The model doesn't just call tools. Mid-turn it authors and runs a JS orchestration script — fanning out agents, judging candidates, piping phases, mining a giant blob — and the engine runs it while a live nested node-tree renders every branch as it happens. One OpenTelemetry trace per session mirrors the tree, exported to a local motel.

Built on Bun + Effect v4 + opentui (React) + @ax-llm/ax → Cloudflare Workers AI (Kimi K2.7 / GLM 5.2).

• workflow — the agent writes the orchestration. Mid-turn the model authors a JS script over in-process prims (phase / agent / parallel / pipeline / judge / rlm / budget) and the engine runs it. Loops, conditionals, fan-out, best-of-N, verify — all expressible, not a fixed strategy menu.
• rlm() — mine a huge blob out of the prompt. A long file / log / concatenated module is loaded into a code runtime; the RLM actor writes JS to mine it for the answer. One prim among many, not a special tool.
• Live node-tree. Every fan-out, branch, and per-node tool cluster renders as a nested unicode tree, inline under the turn that spawned it — live status, tokens, and a Σ footer.
• One trace per session. chat.session → turn → workflow → nodes, real 3-signal OpenTelemetry to motel — the trace mirrors the live tree.
• ⌘K command palette and an importable SDK at src/core/sdk.ts (createAgent → Agent).
• Selectable themes. A palette registry (Catppuccin · Gruvbox · Tokyo Night · high-contrast) with a /theme picker (⌘K → theme) that switches live and persists your choice.
• Sticky session header + native diffs. rlmcode · session <id> anchors at the top — the id is the motel chat.session span tag, so what's on screen is the handle you grep in the trace viewer. edit/write tool calls render as real syntax-highlighted +/- diffs inline.

• Bun ≥ 1.3 — runtime + package manager.
• A Cloudflare account with Workers AI + an API token (Workers AI permission) — for the real model. Skip it with RLM_MOCK=1 (canned AI).

bun install
cp .env.example .env   # fill in CLOUDFLARE_API_TOKEN + CLOUDFLARE_ACCOUNT_ID

bun run chat                 # the agent (needs CF creds in .env)
RLM_MOCK=1 bun run chat      # zero credentials — canned AI, real turn loop + TUI

Hit ⌘K for the command palette.

Pick a theme with ⌘K → theme (or /theme) — it switches live and persists.

bun run motel        # local trace ingest + API (127.0.0.1:27686)
bun run motel:tui    # the motel trace viewer

One trace per session — chat.session → turn → workflow → nodes — mirrors the live node-tree.

src/core/   agent (turn = chat.turn span) · orch.ts (5 prims) · workflow.ts (the script tool)
            rlm-node.ts (the rlm prim) · tools.ts · runtime.ts · models.ts · sdk.ts
src/tui/    opentui React UI — transcript, composer, inline node-tree, theme, icons, ⌘K palette
src/otel.ts NodeSdk 3-signal (traces/logs/metrics) → motel

The core is importable as an SDK (src/core/sdk.ts): createAgent → Agent over a flat TurnEvent stream, with no Effect / OTel / ax types leaking past the barrel.

bun run lint      # tsc + hermetic tests + design-check + ponytail-debt — the commit gate
bun run test:tui  # headless TUI frame gate (terminal-control PTY, mocked AI, zero network)
bun run live      # real CF-Kimi proof: the model authors + runs a workflow script

MIT — see LICENSE. Ported / reused third-party code is credited in THIRD-PARTY-LICENSES.md.