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Quickstart

Ultimate Harness ships the uh CLI for runtime-agnostic agentic engineering workflows.

Terminal window
bun add -g @agenticengineeringagency/ultimate-harness
uh --help

For local development:

Terminal window
bun install --frozen-lockfile
bun run build
node dist/cli.js --help
Terminal window
uh init
uh status
uh adapter capabilities

This creates .harness/ with schema-backed project, adapter, workflow, sandbox, skill, mission, and audit artifacts.

Terminal window
uh mission create m1-example \
--title "Example mission" \
--workflow spec-first-feature \
--objective "Demonstrate the mission lifecycle"
uh validate --all-missions
uh mission dry-run .harness/missions/m1-example/mission.yaml --runtime codex
uh mission run .harness/missions/m1-example/mission.yaml --runtime codex
uh verify m1-example
uh status --json

Use dry-run before a real runtime invocation when checking command shape, sandbox routing, or runtime config overrides.

Terminal window
uh tui --once
uh tui

uh tui requires Bun and opens the OpenTUI/Solid Mission Control surface. Node-only users can continue to use every other uh command.