@@ -1778,6 +1778,12 @@ describe("PullRequestSyncReactor", () => {
       output: AZURE_PULL_REQUEST_CREATED,
       linked: [],
     },
+    {
+      name: "a GitHub pull request created after listing Azure DevOps pull requests",
+      input: "az repos pr list --top 1 && gh pr create --fill",
+      output: `[\n${AZURE_PULL_REQUEST_CREATED}\n]\nhttps://github.com/owner/repository/pull/124\n`,
+      linked: [124],
+    },
     {
       name: "an Azure DevOps pull request after a push",
       input:
 
@@ -84,7 +84,7 @@ const QUOTED_OR_COMMENT = /'[^']*'|"(?:\\[\s\S]|[^"\\])*"|(?<=^|[\s;&|(])#[^\n]*
 const COMMAND_SEPARATOR = /&&|\|\||[;|\n]/u;
 // Commands that print other change requests' URLs, so output beside them proves nothing.
 const LISTS_CHANGE_REQUESTS =
-  /\b(?:gh\s+(?:pr\s+(?:list|status)|search\s+prs|api)|glab\s+(?:mr\s+list|api)|az\s+repos\s+pr\s+list)\b/u;
+  /\b(?:gh\s+(?:pr\s+(?:list|status)|search\s+prs|api)|glab\s+(?:mr\s+list|api))\b/u;
 const URL_LINE = /^[ \t]*(https?:\/\/\S+)[ \t]*$/gmu;
 
 /** The script a shell input runs, unwrapped from Codex's `sh -lc`. */
@@ -158,7 +158,8 @@ export function changeRequestsCreatedBy(input: string, output: string) {
     .join("\n");
   const created = new Map<string, ThreadPullRequestKey & { readonly url: string }>();
   for (const { definition, run } of CREATE_COMMANDS) {
-    if (code.match(run) === null) continue;
+    if (code.match(run) === null || definition.changeRequestListCommand?.test(otherCommands))
+      continue;
     const printed =
       definition.changeRequestCreateOutputUrls?.(output) ??
       Array.from(output.matchAll(URL_LINE), ([, url = ""]) => url);
 
@@ -118,6 +118,7 @@ export const definition = defineSourceControl({
   changeRequestCloseCommand:
     /\baz\s+repos\s+pr\s+update\b[^;&|]*--status[\s=]+["']?(?:completed|abandoned)\b/u,
   changeRequestCreateCommand: /\baz\s+repos\s+pr\s+create\b/u,
+  changeRequestListCommand: /\baz\s+repos\s+pr\s+list\b/u,
   // `az` prints the new pull request as JSON whose `url` is its REST API address.
   changeRequestCreateOutputUrls: azureDevOpsCreatedPullRequestUrls,
   authorProfileUrl: () => null,
 
@@ -280,6 +280,11 @@ export interface SourceControlDefinition {
    * with no such CLI.
    */
   readonly changeRequestCreateCommand?: RegExp;
+  /**
+   * Matches a shell command that prints this host's existing change requests in the form its
+   * create command does, so output beside it proves nothing about what a create opened.
+   */
+  readonly changeRequestListCommand?: RegExp;
   /**
    * The change request URLs the create command's output names, for a CLI that does not print each
    * on a line of its own. Absent means those lines.