feat: add OPENCODE_EXPERIMENTAL_OUTPUT_TOKEN_MAX env variable

Author: qiosun

packages/opencode/src/flag/flag.ts

@@ -27,6 +27,7 @@ export namespace Flag {
     truthy("OPENCODE_ENABLE_EXA") || OPENCODE_EXPERIMENTAL || truthy("OPENCODE_EXPERIMENTAL_EXA")
   export const OPENCODE_EXPERIMENTAL_BASH_MAX_OUTPUT_LENGTH = number("OPENCODE_EXPERIMENTAL_BASH_MAX_OUTPUT_LENGTH")
   export const OPENCODE_EXPERIMENTAL_BASH_DEFAULT_TIMEOUT_MS = number("OPENCODE_EXPERIMENTAL_BASH_DEFAULT_TIMEOUT_MS")
+  export const OPENCODE_EXPERIMENTAL_OUTPUT_TOKEN_MAX = number("OPENCODE_EXPERIMENTAL_OUTPUT_TOKEN_MAX")
   export const OPENCODE_EXPERIMENTAL_OXFMT = OPENCODE_EXPERIMENTAL || truthy("OPENCODE_EXPERIMENTAL_OXFMT")
 
   function truthy(key: string) {

packages/opencode/src/session/llm.ts

@@ -15,7 +15,7 @@ import { Flag } from "@/flag/flag"
 export namespace LLM {
   const log = Log.create({ service: "llm" })
 
-  export const OUTPUT_TOKEN_MAX = 32_000
+  export const OUTPUT_TOKEN_MAX = Flag.OPENCODE_EXPERIMENTAL_OUTPUT_TOKEN_MAX || 32_000
 
   export type StreamInput = {
     user: MessageV2.User

packages/opencode/src/session/prompt.ts

@@ -28,6 +28,7 @@ import { LSP } from "../lsp"
 import { ReadTool } from "../tool/read"
 import { ListTool } from "../tool/ls"
 import { FileTime } from "../file/time"
+import { Flag } from "../flag/flag"
 import { ulid } from "ulid"
 import { spawn } from "child_process"
 import { Command } from "../command"
@@ -48,7 +49,7 @@ globalThis.AI_SDK_LOG_WARNINGS = false
 
 export namespace SessionPrompt {
   const log = Log.create({ service: "session.prompt" })
-  export const OUTPUT_TOKEN_MAX = 32_000
+  export const OUTPUT_TOKEN_MAX = Flag.OPENCODE_EXPERIMENTAL_OUTPUT_TOKEN_MAX || 32_000
 
   const state = Instance.state(
     () => {

packages/web/src/content/docs/cli.mdx

@@ -325,5 +325,6 @@ These environment variables enable experimental features that may change or be r
 | `OPENCODE_EXPERIMENTAL_DISABLE_COPY_ON_SELECT`  | boolean | Disable copy on select in TUI           |
 | `OPENCODE_EXPERIMENTAL_BASH_MAX_OUTPUT_LENGTH`  | number  | Max output length for bash commands     |
 | `OPENCODE_EXPERIMENTAL_BASH_DEFAULT_TIMEOUT_MS` | number  | Default timeout for bash commands in ms |
+| `OPENCODE_EXPERIMENTAL_OUTPUT_TOKEN_MAX`        | number  | Max output tokens for LLM responses     |
 | `OPENCODE_EXPERIMENTAL_FILEWATCHER`             | boolean | Enable file watcher for entire dir      |
 | `OPENCODE_EXPERIMENTAL_OXFMT`                   | boolean | Enable oxfmt formatter                  |