From 651d766fcc2f5d1ddeb61366a87c92c862821f15 Mon Sep 17 00:00:00 2001
From: bluwy <bjornlu.dev@gmail.com>
Date: Mon, 8 Jun 2026 09:32:59 +0800
Subject: [PATCH 1/3] Ignore agent files as changesets

ref: https://github.com/changesets/changesets/pull/2066
---
 get-changed-packages.ts |  9 +++------
 index.ts                |  8 ++------
 is-changeset.ts         | 19 +++++++++++++++++++
 3 files changed, 24 insertions(+), 12 deletions(-)
 create mode 100644 is-changeset.ts

diff --git a/get-changed-packages.ts b/get-changed-packages.ts
index d3c1e81..8950fe3 100644
--- a/get-changed-packages.ts
+++ b/get-changed-packages.ts
@@ -14,6 +14,8 @@ import jsYaml from "js-yaml";
 import micromatch from "micromatch";
 import type { ProbotOctokit } from "probot";
 
+import { isChangeset } from "./is-changeset.ts";
+
 interface PackageJSON extends ChangesetPackageJSON {
   workspaces?: ReadonlyArray<string> | { packages: ReadonlyArray<string> };
   bolt?: { workspaces: ReadonlyArray<string> };
@@ -118,12 +120,7 @@ export const getChangedPackages = async ({
       isPnpm = true;
     } else if (item.path === ".changeset/pre.json") {
       preStatePromise = fetchJsonFile(".changeset/pre.json");
-    } else if (
-      item.path !== ".changeset/README.md" &&
-      item.path.startsWith(".changeset") &&
-      item.path.endsWith(".md") &&
-      changedFiles.includes(item.path)
-    ) {
+    } else if (changedFiles.includes(item.path) && isChangeset(item.path)) {
       const res = /\.changeset\/([^.]+)\.md/.exec(item.path);
       if (!res) {
         throw new Error("could not get name from changeset filename");
diff --git a/index.ts b/index.ts
index ebb3780..c5eaf63 100644
--- a/index.ts
+++ b/index.ts
@@ -7,6 +7,7 @@ import markdownTable from "markdown-table";
 import type { Probot, Context } from "probot";
 
 import { getChangedPackages } from "./get-changed-packages.ts";
+import { isChangeset } from "./is-changeset.ts";
 
 const getReleasePlanMessage = (releasePlan: ReleasePlan | null) => {
   if (!releasePlan) return "";
@@ -112,12 +113,7 @@ const hasChangesetBeenAdded = (
   changedFilesPromise: ReturnType<PRContext["octokit"]["pulls"]["listFiles"]>,
 ) =>
   changedFilesPromise.then((filesResponse) =>
-    filesResponse.data.some(
-      (file) =>
-        file.status === "added" &&
-        /^\.changeset\/.+\.md$/.test(file.filename) &&
-        file.filename !== ".changeset/README.md",
-    ),
+    filesResponse.data.some((file) => file.status === "added" && isChangeset(file.filename)),
   );
 
 export default (app: Probot) => {
diff --git a/is-changeset.ts b/is-changeset.ts
new file mode 100644
index 0000000..fb3fb62
--- /dev/null
+++ b/is-changeset.ts
@@ -0,0 +1,19 @@
+// Files in `.changeset` that should not be considered as changesets.
+// Should match `@changesets/read`.
+const ignoredMdFiles = [/^README\.md$/i, "AGENTS.md", "CLAUDE.md", "GEMINI.md"];
+
+export function isChangeset(filename: string) {
+  if (!filename.startsWith(".changeset/")) return false;
+
+  const file = filename.slice(".changeset/".length);
+  if (file.includes("/")) return false; // Ignore nested files
+
+  // Perform same check as `@changesets/read`
+  return (
+    !file.startsWith(".") &&
+    file.endsWith(".md") &&
+    !ignoredMdFiles.some((pattern) =>
+      typeof pattern === "string" ? pattern === file : pattern.test(file),
+    )
+  );
+}

From 290089fb5c901dfd1a74442ea25a4ee23427ef11 Mon Sep 17 00:00:00 2001
From: bluwy <bjornlu.dev@gmail.com>
Date: Mon, 8 Jun 2026 09:39:03 +0800
Subject: [PATCH 2/3] Fix lint and test

---
 is-changeset.ts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/is-changeset.ts b/is-changeset.ts
index fb3fb62..b96f7ab 100644
--- a/is-changeset.ts
+++ b/is-changeset.ts
@@ -6,7 +6,6 @@ export function isChangeset(filename: string) {
   if (!filename.startsWith(".changeset/")) return false;
 
   const file = filename.slice(".changeset/".length);
-  if (file.includes("/")) return false; // Ignore nested files
 
   // Perform same check as `@changesets/read`
   return (

From f6b369f4d7607b4ee893a290954b13c6ff82ec5c Mon Sep 17 00:00:00 2001
From: bluwy <bjornlu.dev@gmail.com>
Date: Mon, 8 Jun 2026 13:46:09 +0800
Subject: [PATCH 3/3] Format

---
 get-changed-packages.ts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/get-changed-packages.ts b/get-changed-packages.ts
index 2fbc449..dff58c2 100644
--- a/get-changed-packages.ts
+++ b/get-changed-packages.ts
@@ -12,7 +12,6 @@ import type { Packages, Tool } from "@manypkg/get-packages";
 import jsYaml from "js-yaml";
 import micromatch from "micromatch";
 import type { ProbotOctokit } from "probot";
-
 import { isChangeset } from "./is-changeset.ts";
 
 interface PackageJSON extends ChangesetPackageJSON {