Quickstart
Install Ultimate Harness, initialize a project, and run your first verified mission with the uh CLI.
Ultimate Harness ships the uh CLI for runtime-agnostic agentic engineering workflows.
Install
bun add -g @agenticengineeringagency/ultimate-harness
uh --helpFor local development:
bun install --frozen-lockfile
bun run build
node dist/cli.js --helpInitialize a project
uh init
uh status
uh adapter capabilitiesThis creates .harness/ with schema-backed project, adapter, workflow, sandbox, skill, mission, and audit artifacts.
Create and run a mission
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 --jsonUse dry-run before a real runtime invocation when checking command shape, sandbox routing, or runtime config overrides.
Human surfaces
uh tui --once
uh tuiuh tui requires Bun and opens the OpenTUI/Solid Mission Control surface. Node-only users can continue to use every other uh command.
Next steps
Ultimate Harness Documentation
Ultimate Harness is a runtime-agnostic development harness for planning, launching, observing, verifying, and promoting agentic software-development work across multiple coding agents.
Configuration
Configure Ultimate Harness project state, environment variables, and per-mission runtime config overrides.