Fix the learning-run boundary first
A learning run is the complete interval from a declared starting learner state to the endpoint used for one evaluation claim or operating period. A run can contain:- one task with several observations or interventions;
- several passes over related work;
- many environment episodes; or
- a continuing production stream.
A later checkpoint inside a run can use state accumulated earlier in that run. This shows retention and improvement inside the run. It does not turn the checkpoint into a warm start or a separately trained evaluation.
Choose among four setups
Classify the setup from the state at the start of the complete run and the writes allowed inside it.
“Empty” means no applicable task-specific learned state. A Domain contract, public action space, target schema, authored ontology, or base Adapt-1 capability can still exist.
“Separately acquired” means the records that formed the starting state belong to a declared acquisition phase outside the current evaluation or operating run. The split must be fixed before evaluation.
Choose and implement a protocol
The central distinction
The central distinction
Use separate acquisition when the current run should begin with competence earned from other records.Use zero-start learning during the run when the reported or deployed stream itself should earn the state.The second case can span many episodes or passes. State before episode 10 or pass 3 is retained in-run state, not separately acquired state, when the complete run began empty.
When separate acquisition makes sense
When separate acquisition makes sense
Use a separate acquisition phase when most of these conditions hold:
- The first important decision in the new run should already benefit from task experience.
- The current task cannot provide enough useful evidence before important decisions occur.
- Exploration or avoidable failure during the new run is costly, unsafe, slow, or unavailable.
- Approved examples, demonstrations, resolved cases, transitions, trajectories, or earlier operations share the same public meanings as the new work.
- Evaluation should measure transfer from acquisition records onto held-out work.
- A reviewed learned state must remain stable during deployment.
- frozen use, when the new work must not change learner state; and
- continued adaptation, when the acquired state is only a starting point and current outcomes should still update it.
When zero-start learning during the run makes sense
When zero-start learning during the run makes sense
Use zero-start learning during the run when most of these conditions hold:
- The run can produce useful observations or attributable outcomes before later decisions.
- Improvement across the run is part of the claimed or required behavior.
- The application can safely expose the observation, decision, execution, consequence, and feedback boundary.
- Local conditions can change during operation.
- A hidden relationship can be discovered through evidence produced inside the task.
- The intended result is adaptation from an empty task-specific state rather than transfer from a teaching phase.
Both are zero-start learning. Retaining state across episode boundaries does not make later episodes separately pretrained.
What a true warm start requires
What a true warm start requires
A true warm start requires both of these conditions:Keep a fixed copy of the starting checkpoint when you need to measure the value added by current-run adaptation.Do not call a later episode or pass a warm start when all state was earned earlier inside the same zero-start run.
- The starting task-specific state was earned from a declared acquisition phase outside the current run.
- Learner writes remain enabled during the current run.
Frozen can still be interactive
Frozen applies to retained learner state. It does not freeze the external task. During frozen use, all of these can still change:- the current observation;
- available legal actions;
- inventory, location, or external process state;
- temporary episode context; and
- the result requested at each step.
Keep schedule, state scope, relationship, and structure source separate
Keep schedule, state scope, relationship, and structure source separate
Contextual, transition, structural, temporal, and sequential learning can all happen during a zero-start run. They can also form during a separate acquisition phase and then be used frozen or continued online. These relationships describe what the evidence teaches. They do not determine when the state was earned.Discovery is also independent of the schedule:
Discovery means supported learner-facing structure forms from admitted evidence instead of being fully authored. It does not mean task-local, zero-start, online-only, or unfrozen.
What acquisition records must preserve
What acquisition records must preserve
A separate acquisition phase can use resolved examples, demonstrations, observations and targets, decisions and direct outcomes, transitions, or complete trajectories.Preserve all applicable information:
- what was observable before the result or action;
- the exact result or action produced and used;
- the observable target, transition, or consequence available afterward;
- stable field names, types, units, action meanings, and outcome semantics;
- true order and reset boundaries when history matters;
- representative coverage of cases, conditions, and alternatives;
- a held-out split by entity, scenario, or episode before ingestion; and
- no future observation, target-derived value, correct-action label, or private evaluator output in the pre-result input.
When ordered interaction needs sequential learning
When ordered interaction needs sequential learning
Sequential learning is an evidence-relationship choice. Use it only when both conditions hold:
- An earlier action changes the state encountered later.
- A later or terminal outcome should revise that earlier action.
Scenario map
Scenario map
Scientific experiment setup
Scientific experiment setup
Use separate acquisition when earlier experiments share the same variable meanings, intervention semantics, measurement protocol, and transferable relationship, and the first experiment in the new run should already benefit from them.Use zero-start task-local learning when each material, process, or target has an independently redrawn hidden mapping and local interventions reveal that mapping before the final result. Reset at the declared independent-task boundary.Use zero-start retained learning when one continuing experimental program begins empty and should improve across its own trials. Later trials use in-run state, not separately acquired state.Use a true warm start when an external acquisition set forms the starting state and new experiments should continue revising it.Whether an experiment teaches direct utility, a transition, delayed credit, predictive structure, or a typed mechanism is a separate relationship choice. See Choose how a Domain learns.
Four complete protocols
Four complete protocols
Cold useSeparate acquisition, then continued adaptation
- start the declared run with empty applicable task-specific state
- supply current inputs
- request and use results
- do not admit the run as learning evidence
- start the declared run with empty applicable task-specific state
- query or act from current observations
- observe real consequences
- admit eligible evidence
- let later work in the same run use the updated state
- reset or retain at the declared state-scope boundary
Evaluation names must match the protocol
A successful write proves only that the API accepted or stored a record. It does not prove that the intended learner used it. Preserve the declared starting state, run boundary, admission diagnostics, subsystem sample counts, learner versions, decisions, executed actions, measured consequences, and state fingerprints where applicable.
Choose how a Domain learns
Choose what each observation or outcome should change.
Use Discovery
Let Adapt-1 form learner-facing structure from admitted evidence.
Author a Domain ontology
Define explicit reviewed learner-facing structure.
Verify adaptation
Confirm the declared starting state, allowed writes, and later behavior.
Monitor adaptation
Preserve state versions, decisions, outcomes, and lifecycle evidence.
