diff --git a/src/api.ts b/src/api.ts
index 27b9f7b..78f51d3 100644
--- a/src/api.ts
+++ b/src/api.ts
@@ -60,6 +60,8 @@ interface TriggerRunRequest {
   iosBuildId?: string
   androidBuildId?: string
   tenantId?: string
+  prNumber?: number
+  prTitle?: string
 }
 
 interface TriggerRunResponse {
diff --git a/src/ci-metadata.ts b/src/ci-metadata.ts
new file mode 100644
index 0000000..2f69a0c
--- /dev/null
+++ b/src/ci-metadata.ts
@@ -0,0 +1,52 @@
+import * as fs from 'fs'
+import * as core from '@actions/core'
+
+export interface CiMetadata {
+  prNumber?: number
+  prTitle?: string
+}
+
+/**
+ * Extract pull request metadata from the GitHub event payload.
+ *
+ * - `pull_request` / `pull_request_target` events → `prNumber`, `prTitle`
+ *
+ * Returns an empty object for events that don't carry PR metadata (e.g. push,
+ * workflow_dispatch). Never throws — metadata is best-effort and optional.
+ */
+export function getCiMetadata(): CiMetadata {
+  const eventPath = process.env.GITHUB_EVENT_PATH
+  if (!eventPath) return {}
+
+  let event: Record<string, unknown>
+  try {
+    event = JSON.parse(fs.readFileSync(eventPath, 'utf-8'))
+  } catch {
+    core.warning('Failed to read GitHub event payload for CI metadata')
+    return {}
+  }
+
+  const metadata: CiMetadata = {}
+
+  const pr = event?.pull_request as
+    | { number?: number; title?: string }
+    | undefined
+  if (pr) {
+    if (typeof pr.number === 'number') {
+      metadata.prNumber = pr.number
+    }
+    if (typeof pr.title === 'string' && pr.title.trim()) {
+      metadata.prTitle = pr.title.trim()
+    }
+  }
+
+  if (metadata.prNumber !== undefined || metadata.prTitle) {
+    core.info(
+      `Detected pull request metadata: #${metadata.prNumber ?? '?'} ${
+        metadata.prTitle ?? ''
+      }`.trim(),
+    )
+  }
+
+  return metadata
+}
diff --git a/src/main.ts b/src/main.ts
index 6bd72eb..2063830 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -2,6 +2,7 @@ import * as fs from 'fs'
 import * as path from 'path'
 import * as core from '@actions/core'
 import { uploadBuild, triggerRun } from './api'
+import { getCiMetadata } from './ci-metadata'
 import { getCommitTitle } from './commit-title'
 import {
   validateAtLeastOneBuild,
@@ -29,6 +30,9 @@ async function run(): Promise<void> {
     // ── Resolve commit title ────────────────────────────────────────
     const commitTitle = getCommitTitle()
 
+    // ── Resolve CI metadata (PR / release info) ─────────────────────
+    const ciMetadata = getCiMetadata()
+
     // ── Validate builds ──────────────────────────────────────────────
     validateAtLeastOneBuild(iosBuildPath, androidBuildPath)
 
@@ -111,6 +115,8 @@ async function run(): Promise<void> {
       iosBuildId,
       androidBuildId,
       tenantId: tenantId || undefined,
+      prNumber: ciMetadata.prNumber,
+      prTitle: ciMetadata.prTitle,
     })
 
     // ── Output results ───────────────────────────────────────────────