diff --git a/.github/workflows/example.yml b/.github/workflows/example.yml
index 60822d6..b034e07 100644
--- a/.github/workflows/example.yml
+++ b/.github/workflows/example.yml
@@ -1,9 +1,6 @@
 # Example workflow for github-actions-runner
 name: Example
 
-env:
-  NODE_VERSION: 20
-
 on:
   workflow_dispatch:
     inputs:
@@ -24,41 +21,18 @@ jobs:
         with:
           # Number of commits to fetch. 0 indicates all history.
           fetch-depth: 0
-      - name: Setup pnpm
-        uses: pnpm/action-setup@v3
-        with:
-          version: 8
-      - name: Setup Node.js environment
-        uses: actions/setup-node@v4
-        with:
-          node-version: ${{ env.NODE_VERSION }}
-          cache: pnpm
       - name: Run bash commands
         shell: bash
         run: |
           ls -alt
 
-          # Install deps
-          pnpm install
-
-          # Linting package
-          pnpm lint
-          
-          # Testing package
-          pnpm test
-
           # Building package artifact
-          pnpm pack && mv adguard-github-actions-runner-*.tgz github-actions-runner.tgz
+          echo "example" > example.txt
 
           # Show that secrets are encoded
           echo "Secret is ${{ secrets.SECRET_KEY }}"
       - name: Save archived package
         uses: actions/upload-artifact@v4
         with:
-          name: github-actions-runner.tgz
-          path: ./github-actions-runner.tgz
-      - name: Save build.txt
-        uses: actions/upload-artifact@v4
-        with:
-          name: build.txt
-          path: ./dist/build.txt
+          name: example.txt
+          path: ./example.txt
diff --git a/bamboo-specs/example.yaml b/bamboo-specs/example.yaml
index 73643f4..3fe8540 100644
--- a/bamboo-specs/example.yaml
+++ b/bamboo-specs/example.yaml
@@ -1,3 +1,13 @@
+# This is an example Atlassian Bamboo CI configuration that demonstrates how to
+# use github-actions-runner to run a GitHub Actions workflow in a Bamboo CI job.
+#
+# Check out .github/workflows/example.yml to see what workflow this Bamboo job
+# actually runs.
+#
+# This example demonstrates how to:
+# * Trigger a workflow run.
+# * Download the artifacts produced by the workflow.
+# * Pass secrets from the CI to the workflow.
 ---
 version: 2
 plan:
@@ -5,8 +15,10 @@ plan:
   key: GHACTIONSRUNEXAMPLE
   name: github-actions-runner - example
 variables:
-  # TODO replace to :latest-ci
-  dockerNode: ghcr.io/adguardteam/githubactionsrunner:latest-no-entrypoint
+  # Using github-actions-runner Docker image for the latest stable version.
+  # latest-ci docker image does not have any entrypoint and has the
+  # runner installed.
+  docker: ghcr.io/adguardteam/githubactionsrunner:latest-ci
 
 stages:
   - Test:
@@ -20,9 +32,7 @@ Test:
   other:
     clean-working-dir: true
   docker:
-    image: ${bamboo.dockerNode}
-    volumes:
-      ${system.PNPM_DIR}: ${bamboo.cachePnpm}
+    image: ${bamboo.docker}
   tasks:
     - checkout:
         force-clean-build: true
@@ -30,26 +40,25 @@ Test:
         interpreter: SHELL
         scripts:
           - |-
-            set -x
+            # Make sure the script fails on any error.
             set -e
 
-            # Combine stderr and stdout for consistent log output
+            # Combine stderr and stdout for consistent log output.
             exec 2>&1
 
-            ls -laht
-
-            branch="${bamboo_planRepository_branchName}"
-            revision="${bamboo_planRepository_revision}"
-
             GITHUB_TOKEN=${bamboo.githubActionsRunnerPassword} github-actions-runner run-action \
               --repo AdguardTeam/GithubActionsRunner \
-              --branch "$branch" \
-              --rev "$revision" \
+              --branch "${bamboo_planRepository_branchName}" \
+              --rev "${bamboo_planRepository_revision}" \
               --workflow example.yml \
               --artifacts-path . \
+              --secret SECRET_KEY=SECRET_VALUE
+  # The artifacts produced by the workflow are downloaded and shared with the
+  # Bamboo CI job. These artifacts can be then shared with other unrelated
+  # Bamboo builds.
   artifacts:
-    - name: github-actions-runner.tgz
-      pattern: github-actions-runner.tgz
+    - name: example.txt
+      pattern: example.txt
       shared: true
       required: true
   requirements:
diff --git a/src/lib/github/GithubApiManager.ts b/src/lib/github/GithubApiManager.ts
index c7e2999..03d4dc3 100644
--- a/src/lib/github/GithubApiManager.ts
+++ b/src/lib/github/GithubApiManager.ts
@@ -76,18 +76,26 @@ export class GithubApiManager {
     }
 
     /**
-     * Checks if a commit exists.
-     * @param commitRef The reference for the commit to check (SHA).
-     * @returns A boolean indicating if the commit exists.
-     * @throws An error if the commit check fails.
+     * Checks if a commit exists for the specified commit reference.
+     * The function considers a commit to exist if the server returns a 200 OK status.
+     * It handles certain non-200 statuses explicitly without throwing:
+     * - 404 Not Found and 422 Unprocessable Entity are treated as the commit not existing.
+     *
+     * @param commitRef The SHA reference for the commit to check.
+     * @returns A boolean indicating if the commit exists (true) or not (false).
+     * @throws An error if the server response indicates an error (other than 404 or 422)
+     *         or if there is an issue with network connectivity or request formation.
      */
     private async hasCommit(commitRef: string): Promise<boolean> {
         try {
             const response = await this.githubApiClient.getCommit(commitRef);
             return response.status === HttpStatusCode.Ok;
         } catch (error) {
-            if (isErrorWithStatus(error) && error.status === HttpStatusCode.NotFound) {
-                return false;
+            if (isErrorWithStatus(error)) {
+                if (error.status === HttpStatusCode.NotFound || error.status === HttpStatusCode.UnprocessableEntity) {
+                    // Return false if the commit does not exist, or if the request is unprocessable
+                    return false;
+                }
             }
             throw error;
         }