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Aiden Cline
77 lines
2.8 KiB
TypeScript
77 lines
2.8 KiB
TypeScript
import { Effect, Schema } from "effect"
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/**
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* JSON Schema subset for model-visible signatures. CodeMode does not validate values against
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* these schemas.
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*/
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export type JsonSchema = {
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readonly type?: string | ReadonlyArray<string>
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readonly enum?: ReadonlyArray<unknown>
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readonly const?: unknown
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readonly anyOf?: ReadonlyArray<JsonSchema>
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readonly oneOf?: ReadonlyArray<JsonSchema>
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readonly allOf?: ReadonlyArray<JsonSchema>
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readonly properties?: Readonly<Record<string, JsonSchema>>
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readonly required?: ReadonlyArray<string>
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readonly items?: JsonSchema
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readonly additionalProperties?: boolean | JsonSchema
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readonly description?: string
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readonly default?: unknown
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readonly format?: string
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readonly deprecated?: boolean
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readonly minItems?: number
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readonly maxItems?: number
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readonly $ref?: string
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readonly $defs?: Readonly<Record<string, JsonSchema>>
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readonly definitions?: Readonly<Record<string, JsonSchema>>
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}
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/** Either a validating Effect Schema or a render-only JSON Schema document. */
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export type SchemaType = Schema.Decoder<unknown> | JsonSchema
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/** Schema-backed tool definition exposed through CodeMode's `tools` object. */
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export type Definition<R = never> = {
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readonly _tag: "CodeModeTool"
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readonly description: string
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readonly input: SchemaType
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readonly output: SchemaType | undefined
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readonly run: (input: unknown) => Effect.Effect<unknown, unknown, R>
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}
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type InputType<S> = S extends Schema.Decoder<unknown> ? S["Type"] : unknown
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type ResultType<S> = S extends Schema.Decoder<unknown> ? S["Encoded"] : unknown
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/** Options for defining one CodeMode tool. */
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export type Options<I extends SchemaType, O extends SchemaType | undefined, R = never> = {
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readonly description: string
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readonly input: I
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readonly output?: O
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readonly run: (input: InputType<I>) => Effect.Effect<ResultType<O>, unknown, R>
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}
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// Object.hasOwn: an inherited _tag must not classify a namespace as a Definition.
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export const isDefinition = <R = never>(value: unknown): value is Definition<R> =>
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typeof value === "object" &&
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value !== null &&
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"_tag" in value &&
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Object.hasOwn(value, "_tag") &&
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value._tag === "CodeModeTool"
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/**
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* Defines one schema-described tool available to a CodeMode program through `tools.*`.
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*
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* Effect Schemas validate values; JSON Schemas only shape the model-visible signature.
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* Without `output`, results are exposed as `unknown`. Hosts remain responsible for authorization
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* and durable side effects.
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*/
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export const make = <I extends SchemaType, const O extends SchemaType | undefined = undefined, R = never>(
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options: Options<I, O, R>,
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): Definition<R> => ({
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_tag: "CodeModeTool",
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description: options.description,
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input: options.input,
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output: options.output,
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run: (input) => options.run(input as InputType<I>),
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})
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