diff --git a/packages/junior-github/src/events/pull-request.ts b/packages/junior-github/src/events/pull-request.ts
index d82f24b2e8..ca40ddf4de 100644
--- a/packages/junior-github/src/events/pull-request.ts
+++ b/packages/junior-github/src/events/pull-request.ts
@@ -29,6 +29,12 @@ export type GitHubPullRequestEvent =
 const GITHUB_PULL_REQUEST_EVENT_GUIDANCE: Partial<
   Record<GitHubPullRequestEvent, string>
 > = {
+  "pull_request.checks.failed":
+    "Fix only failures that the pull request causes. Do not skip, disable, or weaken a check to make it pass.",
+  // An approval with a body also arrives as review.commented in the same
+  // Turn, so this guidance must not tell the agent to hold off on that body.
+  "pull_request.review.approved":
+    "When the approval includes actionable feedback, address it like any other review feedback.",
   "pull_request.comment.created":
     'After acting on actionable feedback, call github_updatePullRequestFeedback with the exact repo, commentId, and commentKind from Verified details, and status "addressed" or "declined".',
   "pull_request.review_comment.created":
diff --git a/packages/junior-github/tests/github-plugin.test.ts b/packages/junior-github/tests/github-plugin.test.ts
index dec14d08c4..c226227c3b 100644
--- a/packages/junior-github/tests/github-plugin.test.ts
+++ b/packages/junior-github/tests/github-plugin.test.ts
@@ -627,7 +627,9 @@ describe("github plugin", () => {
     expect(events?.events).toMatchObject({
       "pull_request.checks.failed": {
         reach: { anyOf: ["repo"] },
-        guidance: "Inspect the failed checks.",
+        guidance: expect.stringMatching(
+          /^Fix only failures .* Inspect the failed checks\.$/,
+        ),
       },
       "pull_request.comment.created": {
         guidance: expect.stringContaining(