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

flag.evaluate

Evaluate a feature flag for a given context.

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

    Evaluate a feature flag for a given context.

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

    Evaluate a feature flag for a given context.

    Goal

    Determine if a feature should be enabled.

    Context

    Called at runtime to check feature availability.

    Source Definition

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

export const EvaluateFlagContract = defineQuery({
	meta: {
		key: 'flag.evaluate',
		version: '1.0.0',
		stability: 'stable',
		owners: ['platform.feature-flags'],
		tags: ['feature-flags', 'evaluate'],
		description: 'Evaluate a feature flag for a given context.',
		goal: 'Determine if a feature should be enabled.',
		context: 'Called at runtime to check feature availability.',
	},
	io: {
		input: EvaluateFlagInput,
		output: EvaluationResultModel,
		errors: {
			FLAG_NOT_FOUND: {
				description: 'Flag does not exist',
				http: 404,
				gqlCode: 'FLAG_NOT_FOUND',
				when: 'Flag key is invalid',
			},
		},
	},
	policy: {
		auth: 'anonymous',
	},
});