xarmian c46ecc4cf8 feat(items): idempotency keys for item create (TASK-3585) (#2065) ...

A create carries op_key (body) or Idempotency-Key (header). The key is
claimed before the write and its answer (the created item's id) is stored
inside the create's own transaction, so a retry whose first answer was
lost returns that item instead of creating a twin. A refused create
releases its key; a key reused for a different create is 422
idempotency_key_reused; one still in flight is 409 idempotency_in_flight.
A replay whose item has since been deleted answers 410
idempotency_target_gone.

CLI: `pad item create --op-key`, a fresh key per invocation by default,
and one same-key retry of a 5xx or transport error, only when the server
advertises idempotency_keys. MCP: pad_item create accepts op_key on both
transports (remote maps it into the body; stdio passes --op-key).
ToolSurfaceVersion 0.90 -> 0.91 (additive).

Claude-Session: https://claude.ai/code/session_01Q9WssCjFuHjSfLABoW4tmS

2026-10-11 13:06:44 -04:00

..

depages

feat(ci): an advisory dependency-age check (cmd/depages) (TASK-1391) (#2014)

2026-10-10 04:48:59 -04:00

loadtest-collab

fix(collab): close a peer the op bus had to drop an op for (TASK-1273) (#1981)

2026-10-09 13:52:27 -04:00

pad

feat(items): idempotency keys for item create (TASK-3585) (#2065)

2026-10-11 13:06:44 -04:00