Context

Using http component to fetch GitHub compare .diff can produce large bodies.

Observed behavior

Workflow failed with:

event payload too large: 103293 bytes (max 65536)

HTTP call itself succeeded, but payload could not traverse event graph due to ~64KiB limit.

Implication

Large diff/content should not be passed through normal event payload path. Use commit metadata already present or delegate large fetch/review to external agent systems.

Suggested improvement

• Document payload size limits clearly in Data Flow and component docs.
• Consider chunking/external blob references for larger payload patterns.