3 Commits

Author	SHA1	Message	Date
Nuno Campos	a9aa3f232d	feat(langchain_v1): Add retry_model_request middleware hook, add ModelFallbackMiddleware (#33275) ... - retry_model_request hook lets a middleware decide to retry a failed model request, with full ability to modify as much or as little of the request before doing so - ModelFallbackMiddleware tries each fallback model in order, until one is successful, or fallback list is exhausted Co-authored-by: Sydney Runkle <54324534+sydney-runkle@users.noreply.github.com>	2025-10-05 20:32:45 +00:00
Nuno Campos	30f7c87b6f	feat(langchain_v1): Implement PIIMiddleware (#33271) ... - supports 6 well-known PII types (email, credit_card, ip, mac_address, url) - 4 handling strategies (block, redact, mask, hash) - supports custom PII types with detector functions or regex - the built-in types were chosen because they are common, and detection can be reliably implemented with stdlib	2025-10-04 22:27:51 -04:00
Nuno Campos	2286d0d993	feat(langchain_v1): Add ToolCallLimitMiddleware (#33269) ... which implements a tool call budget for either all tools, or a specific tool --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>	2025-10-04 15:03:45 -04:00