Fix capitalization issues

entry

@@ -119867,6 +119867,40 @@ ${encodedEvent}` : ""}
 ${runtimeContext}`;
 }
 
+// utils/normalizeEnv.ts
+function normalizeEnv() {
+  const upperKeys = /* @__PURE__ */ new Map();
+  for (const key of Object.keys(process.env)) {
+    const upper2 = key.toUpperCase();
+    const existing = upperKeys.get(upper2) || [];
+    existing.push(key);
+    upperKeys.set(upper2, existing);
+  }
+  for (const [upperKey, keys] of upperKeys) {
+    if (keys.length === 1) {
+      const key = keys[0];
+      if (key !== upperKey) {
+        process.env[upperKey] = process.env[key];
+        delete process.env[key];
+      }
+      continue;
+    }
+    const values = keys.map((k) => process.env[k]);
+    const uniqueValues = new Set(values);
+    if (uniqueValues.size > 1) {
+      log.warning(
+        `env var conflict: ${keys.join(", ")} have different values. using uppercase ${upperKey}.`
+      );
+    }
+    const preferredKey = keys.find((k) => k === upperKey) || keys[0];
+    const preferredValue = process.env[preferredKey];
+    for (const key of keys) {
+      delete process.env[key];
+    }
+    process.env[upperKey] = preferredValue;
+  }
+}
+
 // utils/payload.ts
 import { isAbsolute, resolve } from "node:path";
 var ToolPermissionInput = type.enumerated("disabled", "enabled");
@@ -138455,6 +138489,7 @@ async function resolveRunId(repoData) {
 async function main(core5) {
   var _stack2 = [];
   try {
+    normalizeEnv();
     process.env.ORIGINAL_GITHUB_TOKEN = process.env.GITHUB_TOKEN;
     const payload = resolvePayload(core5);
     if (payload.cwd && process.cwd() !== payload.cwd) {

main.ts

@@ -5,6 +5,7 @@ import { validateApiKey } from "./utils/apiKeys.ts";
 import { log } from "./utils/cli.ts";
 import { reportErrorToComment } from "./utils/errorReport.ts";
 import { resolveInstructions } from "./utils/instructions.ts";
+import { normalizeEnv } from "./utils/normalizeEnv.ts";
 import { resolvePayload } from "./utils/payload.ts";
 import { resolveRepoData } from "./utils/repoData.ts";
 import { resolveAgent } from "./utils/resolveAgent.ts";
@@ -25,6 +26,9 @@ export interface MainResult {
 export async function main(core: {
   getInput: (name: string, options?: { required?: boolean }) => string;
 }): Promise<MainResult> {
+  // normalize env var names to uppercase (handles case-insensitive workflow files)
+  normalizeEnv();
+
   // store original GITHUB_TOKEN
   process.env.ORIGINAL_GITHUB_TOKEN = process.env.GITHUB_TOKEN;
 

utils/normalizeEnv.ts

@@ -0,0 +1,56 @@
+import { log } from "./cli.ts";
+
+/**
+ * Normalize environment variables to uppercase.
+ * This handles case-insensitive env var names (e.g., `anthropic_api_key` -> `ANTHROPIC_API_KEY`).
+ *
+ * If there are conflicts (same key with different capitalizations but different values),
+ * logs a warning and keeps the uppercase version.
+ */
+export function normalizeEnv(): void {
+  const upperKeys = new Map<string, string[]>();
+
+  // group keys by their uppercase form
+  for (const key of Object.keys(process.env)) {
+    const upper = key.toUpperCase();
+    const existing = upperKeys.get(upper) || [];
+    existing.push(key);
+    upperKeys.set(upper, existing);
+  }
+
+  // process each group
+  for (const [upperKey, keys] of upperKeys) {
+    if (keys.length === 1) {
+      const key = keys[0];
+      if (key !== upperKey) {
+        // single key, just needs uppercasing
+        process.env[upperKey] = process.env[key];
+        delete process.env[key];
+      }
+      continue;
+    }
+
+    // multiple keys with different capitalizations
+    const values = keys.map((k) => process.env[k]);
+    const uniqueValues = new Set(values);
+
+    if (uniqueValues.size > 1) {
+      // conflict: different values for different capitalizations
+      log.warning(
+        `env var conflict: ${keys.join(", ")} have different values. using uppercase ${upperKey}.`
+      );
+    }
+
+    // prefer the uppercase version if it exists, otherwise use the first one
+    const preferredKey = keys.find((k) => k === upperKey) || keys[0];
+    const preferredValue = process.env[preferredKey];
+
+    // delete all variants
+    for (const key of keys) {
+      delete process.env[key];
+    }
+
+    // set the uppercase version
+    process.env[upperKey] = preferredValue;
+  }
+}