zu-cli 0.4.0

The `zu` command — Agent Production Runtime CLI

zu-cli

The zu command, the HTTP server, and the MCP server — the surfaces you drive Zu through. This package wires the same runtime path the import zu facade uses (config in → typed Result out), so the CLI, the server, and embedding are one runtime, not three.

This package registers no plugins; it consumes them.

Commands

Command	What it does
zu run agent.yaml	Run one task; streams a live trace. --every 5m for a scheduled worker, --no-stream for CI, --sandboxed to run contained.
zu init --template web	Scaffold a starter agent.yaml (minimal / web / research).
zu demo	Prove a real run end to end (--offline for a scripted self-test).
zu serve -c agent.yaml	HTTP service: POST /run, POST /run/stream (SSE), GET /healthz. Needs [serve].
zu deploy local|compose|fly|render|dockerfile · zu pack	Turn a config/bundle into a running/deployable service or image.
zu mcp	An MCP stdio server so coding agents (Claude Code, Cursor, Codex) drive Zu — design/run, construct, explore, and report capability gaps. Needs [mcp].
zu plugins · zu test-plugin <pkg>	List discovered plugins · run a plugin through the test gate (see zu-redteam).

The construction sequence — task + site → production agent, frontier spend bounded to one live capture (see docs/agent-construction-sequence.md):

Command	What it does
zu capture <agent>	Drive the target once (live) → fixtures/capture.json. The one live spend.
zu run <agent> --offline	Replay the captured bundle at ~$0 (no model/network) — the free construction inner loop.
zu build <agent>	The offline spine: build → record track → harden, gated on resilience.
zu harden <agent>	Score a captured path against perturbed fixtures (offline brittleness audit + resilience).
zu construct <agent> [--check|--sandboxed]	The anti-hardcode readiness gate (G1–G3) / the autonomous, contained construction loop.

Modules

main.py (the Typer app), config.py (config/task loading + assembly + shared coercion helpers), server.py (FastAPI), mcp_server.py, demo.py, deploy.py, scaffold.py, trace.py (the live train-of-thought formatter). The construction surface: offline.py (replay + FixtureSessionBackend), build.py, harden.py, guardrails.py, construct.py (the meta-agent driver + LiveStrategist), construct_sandbox.py (contained construction), explore.py (harness-driven pathfinding), contribute.py (capability-gap issues).

Tests

uv run pytest packages/zu-cli — offline. Fixture agents the suite drives live in tests/agents/ (the sole shipped example is examples/agents/vet-appointment/).