// MCP plugin tagged errors. Each carries an `HttpApiSchema` annotation so// it can be `.addError(...)` directly on the API group — handlers return// these and HttpApi encodes them as 4xx responses with a typed body. No// per-handler sanitisation step. import { Schema } from "effect";import { HttpApiSchema } from "@effect/platform"; export class McpConnectionError extends Schema.TaggedError<McpConnectionError>()(  "McpConnectionError",  {    transport: Schema.String,    message: Schema.String,  },  HttpApiSchema.annotations({ status: 400 }),) {} export class McpToolDiscoveryError extends Schema.TaggedError<McpToolDiscoveryError>()(  "McpToolDiscoveryError",  {    stage: Schema.Literal("connect", "list_tools"),    message: Schema.String,  },  HttpApiSchema.annotations({ status: 400 }),) {} export class McpInvocationError extends Schema.TaggedError<McpInvocationError>()(  "McpInvocationError",  {    toolName: Schema.String,    message: Schema.String,  },  HttpApiSchema.annotations({ status: 400 }),) {} export class McpOAuthError extends Schema.TaggedError<McpOAuthError>()(  "McpOAuthError",  {    message: Schema.String,  },  HttpApiSchema.annotations({ status: 400 }),) {}