API transport/header semantics
Shopify Admin GraphQL validation error HTTP status code 400 retry middleware client error transient transport failure
Retry middleware treats a client error as a transient transport failure.
Agent Quick Fix
Request bodies remain locally valid while the external API changes required Accept/Content-Type or success/error status interpretation.
Product: Shopify Admin GraphQL
Current-contract area: GraphQL validation error now uses more granular HTTP status
Likely root cause: Retry middleware treats a client error as a transient transport failure.
Repair direction: Verifier checks headers, body encoding, and status handling across success and error cases. Check correct retry classification and GraphQL error parsing.
Validation Status
Codex searched organically in the validation run. No no-web counterfactual is attached to this page yet.
Symptom
Retry middleware treats a client error as a transient transport failure.
Why This Happens
Request bodies remain locally valid while the external API changes required Accept/Content-Type or success/error status interpretation.
Verification
Verifier checks headers, body encoding, and status handling across success and error cases. Check correct retry classification and GraphQL error parsing.
Common Wrong Fixes
- Changing local code without checking the current external contract.
- Retrying the same install, build, or API call with no version/source change.
- Applying a broad unsafe bypass when a narrow compatibility fix is available.
Codex Search Keywords
These are the search terms observed in a neutral Codex validation run for this failure shape.
Shopify Admin GraphQL validation error HTTP status code 400 retry middleware client error transient transport failure
site:shopify.dev Admin GraphQL status codes validation error HTTP 400
Shopify Admin API GraphQL status and error codes 400 200
Shopify GraphQL Admin API error codes THROTTLED ACCESS_DENIED status code
https://shopify.dev/docs/api/admin-graphql
'Status and error codes' in https://shopify.dev/docs/api/admin-graphql