diff --git a/report/schemas/result.yaml b/report/schemas/result.yaml
index b7b9f10..a31d22f 100644
--- a/report/schemas/result.yaml
+++ b/report/schemas/result.yaml
@@ -21,6 +21,13 @@ properties:
       stacktrace:
         type: string
         nullable: true
+      error_context:
+        type: string
+        nullable: true
+        description: >-
+          Free-form failure context captured by the reporter. For Playwright this is the content
+          of error-context.md, which may include rendered page content. Reporters may truncate
+          long values; Qase truncates at 262144 characters on upload.
       thread:
         type: string
         nullable: true
diff --git a/testops-api/v2/paths/results_bulk.yaml b/testops-api/v2/paths/results_bulk.yaml
index 5d78a16..e8308a5 100644
--- a/testops-api/v2/paths/results_bulk.yaml
+++ b/testops-api/v2/paths/results_bulk.yaml
@@ -45,5 +45,10 @@ post:
       description: Forbidden
     "404":
       description: Not Found
+    "413":
+      description: |
+        Payload Too Large. Returned when the request contains more than 2000 results, or when the
+        combined length of `execution.error_context` across the batch exceeds 4194304 characters.
+        In both cases the whole batch is rejected — no results are created.
     "422":
       description: Unprocessable Entity
diff --git a/testops-api/v2/schemas/ResultExecution.yaml b/testops-api/v2/schemas/ResultExecution.yaml
index ffe7224..dd23e8e 100644
--- a/testops-api/v2/schemas/ResultExecution.yaml
+++ b/testops-api/v2/schemas/ResultExecution.yaml
@@ -21,6 +21,15 @@ properties:
   stacktrace:
     type: string
     nullable: true
+  error_context:
+    type: string
+    nullable: true
+    description: >-
+      Free-form failure context captured by the reporter. For Playwright this is the content of
+      error-context.md (test info, error details, page snapshot), so it may include rendered page
+      content. Stored verbatim so it can be copied as raw text. Values longer than 262144
+      characters are silently truncated by Qase and the request still succeeds. Write-only — not
+      returned by the result read endpoints.
   thread:
     type: string
     nullable: true