OSS-first docs

These docs teach the open system first: contracts, generated surfaces, runtimes, governance, and incremental adoption. Studio shows up as the operating layer on top, not as the source of truth.

AI index

experiment.start

Start an experiment.

  • Type: operation (command)
  • Version: 1.0.0
  • Stability: stable
  • Owners: platform.feature-flags
  • Tags: feature-flags, experiment, start
  • File: packages/libs/feature-flags/src/contracts/index.ts
    • field.key.label
    experiment.start
    field.version.label
    1.0.0
    field.type.label
    operation (command)
    field.title.label
    experiment.start
    field.description.label

    Start an experiment.

  • Type: operation (command)
  • Version: 1.0.0
  • Stability: stable
  • Owners: platform.feature-flags
  • Tags: feature-flags, experiment, start
  • File: packages/libs/feature-flags/src/contracts/index.ts
    • field.tags.label
    feature-flags,experiment,start
    field.owners.label
    platform.feature-flags
    field.stability.label
    stable

    Start an experiment.

    Goal

    Begin collecting data for an experiment.

    Context

    Called when ready to run an A/B test.

    Source Definition

    import { defineCommand, defineQuery } from '@lssm-tech/lib.contracts-spec';
import { defineSchemaModel, ScalarTypeEnum } from '@lssm-tech/lib.schema';

export const StartExperimentContract = defineCommand({
	meta: {
		key: 'experiment.start',
		version: '1.0.0',
		stability: 'stable',
		owners: ['platform.feature-flags'],
		tags: ['feature-flags', 'experiment', 'start'],
		description: 'Start an experiment.',
		goal: 'Begin collecting data for an experiment.',
		context: 'Called when ready to run an A/B test.',
	},
	io: {
		input: StartExperimentInput,
		output: ExperimentModel,
		errors: {
			EXPERIMENT_NOT_FOUND: {
				description: 'Experiment does not exist',
				http: 404,
				gqlCode: 'EXPERIMENT_NOT_FOUND',
				when: 'Experiment ID is invalid',
			},
			EXPERIMENT_ALREADY_RUNNING: {
				description: 'Experiment is already running',
				http: 409,
				gqlCode: 'EXPERIMENT_ALREADY_RUNNING',
				when: 'Cannot start an experiment that is already running',
			},
		},
	},
	policy: {
		auth: 'admin',
	},
});