Type Alias MapAction

Type Declaration

• { kind: "passthrough" }
• {
      kind: "rename";
      to: string;
      transform?: (v: unknown, ctx: TransformCtx) => unknown;
  }
• {
      kind: "nest";
      path: string;
      transform?: (v: unknown, ctx: TransformCtx) => unknown;
  }
• { kind: "drop"; reason: string }
• {
      kind: "custom";
      apply: (
          body: Record<string, unknown>,
          value: unknown,
          ctx: TransformCtx,
      ) => void;
  }
• {
      kind: "always";
      apply: (
          body: Record<string, unknown>,
          value: unknown,
          ctx: TransformCtx,
      ) => void;
  }

  Runs even when the canonical field is absent. Use for fields that have provider-mandated defaults (e.g. Anthropic requires max_tokens).