Allow set of MAX_PR_COUNT from environment

README.md

@@ -215,6 +215,8 @@ Also, the following general options are supported:
 
 - `BASE_BRANCHES`: If provided, the action will be restricted in terms of base branches. Can be comma-separated list of simple branch names (i.e `main,dev`).
 
+- `MAX_PR_COUNT`: If provided, will control how many GitHub pull requests are considered in a single run. The default is `10`.
+
 You can configure the environment variables in the workflow file like this:
 
 ```yaml

lib/api.js

@@ -30,7 +30,7 @@ const RELEVANT_ACTIONS = [
 ];
 
 // we'll only update a few PRs at once:
-const MAX_PR_COUNT = 10;
+const MAX_PR_COUNT = process.env.MAX_PR_COUNT || 10;
 
 async function executeLocally(context, url) {
   const { octokit } = context;