CONTEXT.md

Ultra Builder Pro Domain Language

Language

Term	Canonical meaning	Not this
Owner	The person who supplies intent, acceptance, material trade-offs, risk acceptance, and authorization for external or irreversible effects.	A generic model role or a workflow state.
Host model	The active coding model that interprets intent, chooses strategy, edits within authority, evaluates evidence, and writes the final expression.	An Ultra workflow engine.
Owner-invoked workflow	One complete, explicit route selected through a host's native Skill surface.	A subroutine that another public workflow launches automatically.
Model-invoked discipline	A focused reusable reasoning method that the host model selects only inside the currently authorized task.	A user command, autonomous background agent, or private authority holder.
Project Brief	The raw owner intake and broad outline captured by ultra-init before evidence-backed maturation.	The accepted North Star, a product baseline, or a transcript that later workflows rewrite.
North Star	The accepted steering contract established by ultra-research: project direction, one outcome or metric when justified, hard constraints, exclusions, and evidence trace.	The owner's unprocessed first sentence or a duplicate of the product specification.
Research lens	One focused evidence question inside ultra-research that updates a mapped canonical specification section.	A public Skill, a generic reasoning method, or an independently authoritative document.
Wayfinding	An optional Research method that maps knowns, unknowns, lens dependencies, evidence sources, checkpoints, and a stop condition.	A workflow state machine, new public Skill, or semantic authority.
Router	The read-only ultra-status Skill that infers the smallest next route from files, Git, and install health.	A persisted workflow state machine.
Hook	A deterministic lifecycle sensor or narrow effect guard registered by a host adapter.	A semantic completion judge.
Canonical artifact	The single owner-readable file that carries one class of accepted semantic truth.	A cache, transcript, generated projection, or database row.
Derived artifact	Disposable observation or navigation under .ultra/.runtime/, .ultra/progress/, .ultra/reviews/, or .ultra/research/<run-id>/brief.md.	Product intent, accepted specification, or task authority.
Delegate	A bounded invocation of another supported CLI in an isolated registered Git worktree.	A new workflow owner or an authority-escalation channel.
Worker Packet	Immutable, digest-bound input that fixes a review or delegation worker's scope and output path.	Mutable shared conversation state.
Permission envelope	A strict declaration of writable worktree roots and external effects; v0.26 accepts no external-effect grant.	A promise that can override the host's native sandbox.
Receipt	A terminal, mechanically validated record of what a delegated process observed and changed.	Proof that the semantic result is correct or accepted.

Relationships

• The owner selects a workflow; the host model may use model-invoked disciplines inside that workflow; the workflow writes canonical artifacts.
• Init writes the Project Brief and an empty skeleton. Research consumes that seed and establishes the North Star, shared language, and specification baseline; Change owns only the bounded delta against that baseline.
• Hooks may read canonical artifacts and write derived observations. Derived artifacts never flow back into authority without model interpretation and an authorized writer.
• A delegate reads an immutable instruction and permission envelope, changes only its registered worktree, and returns a receipt. The primary host inspects and integrates the diff.
• Git binds every artifact and receipt to observable source state and supplies recovery.

Flagged ambiguities

• Do not call model-invoked disciplines “background agents”; they are methods and may run sequentially when a host has no subagent surface.
• Do not call tasks.json a projection; in v0.26 it is the canonical task ledger.
• Do not call a Hook or Doctor result “workflow truth”; it is an observation.