teamchong e0950efa6f transform: default to placement='user' and stamp ttl='1h' on image cache_control ...

Two protocol-correctness fixes that have to ship together.

1. **Default placement: 'system' → 'user'.** Anthropic's `system` field is
   typed as `string | TextBlock[]` — image blocks there come back as
   `400 system.N.type: Input should be 'text'`. Images must go into a
   user-message content array.

2. **ttl='1h' on the image's cache_control.** Anthropic enforces the rule
   "ttl='1h' must not come after ttl='5m'" in processing order
   (tools → system → messages). Claude Code marks its own user-message
   content with ttl='1h'; if we leave ttl unset it defaults to '5m', our
   block lands first in processing order, and the request 400s the moment
   Claude Code's own 1h breakpoint shows up later in the conversation.

The existing image-placement tests now look in messages[0].content instead
of out.system, and a new test pins the ttl='1h' invariant directly.

2026-05-18 17:11:56 -04:00

..

proxy-usage.test.ts

proxy: tee upstream body and extract Anthropic usage tokens

2026-05-18 16:02:52 -04:00

render.test.ts

transform: default to placement='user' and stamp ttl='1h' on image cache_control

2026-05-18 17:11:56 -04:00

stats.test.ts

cli: add 'pixelpipe stats' subcommand for offline log analysis

2026-05-18 16:13:04 -04:00

tracker.test.ts

host: wire FileTracker (Node) + JsonLogTracker (Worker) into per-request flow

2026-05-18 16:10:07 -04:00