From abbe47b1b9b3b2ec5541e451bbe84a24b70e6481 Mon Sep 17 00:00:00 2001
From: Daniel Samson <12231216+daniel-samson@users.noreply.github.com>
Date: Sun, 12 Apr 2026 14:52:01 +0100
Subject: [PATCH] Support Claude Code Max via OAuth token

Pass CLAUDE_CODE_OAUTH_TOKEN to workspaces so they use the Max
subscription instead of pay-per-use API credits. Falls back to
ANTHROPIC_API_KEY if OAuth token not set.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 coder/cloudflare-worker/main.tf | 17 ++++++++++++++++-
 src/config.ts                   |  7 +++++--
 src/services/coder.ts           |  3 +++
 3 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/coder/cloudflare-worker/main.tf b/coder/cloudflare-worker/main.tf
index cceb92f..d409d91 100644
--- a/coder/cloudflare-worker/main.tf
+++ b/coder/cloudflare-worker/main.tf
@@ -196,6 +196,15 @@ data "coder_parameter" "callback_url" {
   mutable      = false
 }
 
+data "coder_parameter" "claude_oauth_token" {
+  name         = "claude_oauth_token"
+  display_name = "Claude OAuth Token"
+  description  = "OAuth token for Claude Code Max subscription"
+  type         = "string"
+  default      = ""
+  mutable      = false
+}
+
 data "coder_parameter" "deploy_env" {
   name         = "deploy_env"
   display_name = "Deploy Environment"
@@ -414,7 +423,8 @@ resource "coder_agent" "main" {
   }
 
   env = {
-    ANTHROPIC_API_KEY = data.coder_parameter.anthropic_api_key.value
+    ANTHROPIC_API_KEY        = data.coder_parameter.anthropic_api_key.value
+    CLAUDE_CODE_OAUTH_TOKEN  = data.coder_parameter.claude_oauth_token.value
     GITHUB_TOKEN      = data.coder_external_auth.github.access_token
     GITEA_TOKEN       = data.coder_parameter.gitea_token.value
     GITEA_ORG         = data.coder_parameter.gitea_org.value
@@ -576,6 +586,11 @@ resource "kubernetes_deployment_v1" "workspace" {
             value = data.coder_parameter.anthropic_api_key.value
           }
 
+          env {
+            name  = "CLAUDE_CODE_OAUTH_TOKEN"
+            value = data.coder_parameter.claude_oauth_token.value
+          }
+
           env {
             name  = "GITHUB_TOKEN"
             value = data.coder_external_auth.github.access_token
diff --git a/src/config.ts b/src/config.ts
index d8388f0..9a01808 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -11,8 +11,10 @@ export interface Config {
   giteaDevToken: string;
   /** Gitea API token for the review bot account */
   giteaReviewToken: string;
-  /** Anthropic API key passed to Claude Code in workspaces */
+  /** Anthropic API key passed to Claude Code in workspaces (fallback) */
   anthropicApiKey: string;
+  /** Claude Code OAuth token for Max subscription (preferred) */
+  claudeOauthToken: string;
   /** Username of the dev bot (to filter out self-replies) */
   botDevUsername: string;
   /** Username of the review bot (to filter out self-replies) */
@@ -41,7 +43,8 @@ export function loadConfig(): Config {
     coderTemplateId: required("CODER_TEMPLATE_ID"),
     giteaDevToken: required("GITEA_DEV_TOKEN"),
     giteaReviewToken: required("GITEA_REVIEW_TOKEN"),
-    anthropicApiKey: required("ANTHROPIC_API_KEY"),
+    anthropicApiKey: process.env.ANTHROPIC_API_KEY || "",
+    claudeOauthToken: process.env.CLAUDE_OAUTH_TOKEN || "",
     botDevUsername: process.env.BOT_DEV_USERNAME || "claude-dev",
     botReviewUsername: process.env.BOT_REVIEW_USERNAME || "claude-review",
     giteaUrl: process.env.GITEA_URL || "https://gitea.samson.media",
diff --git a/src/services/coder.ts b/src/services/coder.ts
index fc3b319..d20a898 100644
--- a/src/services/coder.ts
+++ b/src/services/coder.ts
@@ -7,6 +7,7 @@ export class CoderClient {
   private token: string;
   private templateId: string;
   private anthropicApiKey: string;
+  private claudeOauthToken: string;
   private callbackUrl: string;
 
   constructor(config: Config) {
@@ -14,6 +15,7 @@ export class CoderClient {
     this.token = config.coderToken;
     this.templateId = config.coderTemplateId;
     this.anthropicApiKey = config.anthropicApiKey;
+    this.claudeOauthToken = config.claudeOauthToken;
     this.callbackUrl = config.callbackUrl;
   }
 
@@ -31,6 +33,7 @@ export class CoderClient {
         { name: "gitea_org", value: task.giteaOrg },
         { name: "gitea_repo", value: task.giteaRepo },
         { name: "anthropic_api_key", value: this.anthropicApiKey },
+        { name: "claude_oauth_token", value: this.claudeOauthToken },
         { name: "callback_url", value: `${this.callbackUrl}/webhook/task-complete/${name}` },
         ...(task.deployEnv
           ? [{ name: "deploy_env", value: task.deployEnv }]