Remove effect-zod bridge (#26956)

packages/opencode/src/session/message-v2.ts

@@ -1,6 +1,5 @@
 import { BusEvent } from "@/bus/bus-event"
 import { SessionID, MessageID, PartID } from "./schema"
-import z from "zod"
 import { NamedError } from "@opencode-ai/core/util/error"
 import { APICallError, convertToModelMessages, LoadAPIKeyError, type ModelMessage, type UIMessage } from "ai"
 import { LSP } from "@/lsp/lsp"
@@ -55,7 +54,7 @@ export const APIError = namedSchemaError("APIError", {
   responseBody: Schema.optional(Schema.String),
   metadata: Schema.optional(Schema.Record(Schema.String, Schema.String)),
 })
-export type APIError = z.infer<typeof APIError.Schema>
+export type APIError = Schema.Schema.Type<typeof APIError.Schema>
 export const ContextOverflowError = namedSchemaError("ContextOverflowError", {
   message: Schema.String,
   responseBody: Schema.optional(Schema.String),

packages/opencode/src/session/prompt.ts

@@ -1,6 +1,5 @@
 import path from "path"
 import os from "os"
-import * as EffectZod from "@opencode-ai/core/effect-zod"
 import { SessionID, MessageID, PartID } from "./schema"
 import { MessageV2 } from "./message-v2"
 import * as Log from "@opencode-ai/core/util/log"
@@ -21,6 +20,7 @@ import PROMPT_PLAN from "../session/prompt/plan.txt"
 import BUILD_SWITCH from "../session/prompt/build-switch.txt"
 import MAX_STEPS from "../session/prompt/max-steps.txt"
 import { ToolRegistry } from "@/tool/registry"
+import { ToolJsonSchema } from "@/tool/json-schema"
 import { MCP } from "../mcp"
 import { LSP } from "@/lsp/lsp"
 import { Flag } from "@opencode-ai/core/flag/flag"
@@ -565,7 +565,7 @@ NOTE: At any point in time through this workflow you should feel free to ask the
         providerID: input.model.providerID,
         agent: input.agent,
       })) {
-        const schema = ProviderTransform.schema(input.model, EffectZod.toJsonSchema(item.parameters))
+        const schema = ProviderTransform.schema(input.model, ToolJsonSchema.fromTool(item))
         tools[item.id] = tool({
           description: item.description,
           inputSchema: jsonSchema(schema),