Sydney Runkle 4ab94579ad feat(langchain): support SystemMessage in create_agent's system_prompt (#34055) ...

* `create_agent`'s `system_prompt` allows `str | SystemMessage`
* added `system_message: SystemMessage` on `ModelRequest`
* `ModelRequest.system_prompt` is a function of `system_message.text`,
now deprecated
* disallow setting `system_prompt` and `system_message`
* `ModelRequest.system_prompt` can still be set (w/ custom setattr) for
custom backwards compat, but the updates just get propogated to the
`ModelRequest.system_message`

---------

Co-authored-by: Chester Curme <chester.curme@gmail.com>

2025-11-24 14:53:57 +00:00

..

__init__.py

chore(langchain_v1,anthropic): migrate anthropic middleware to langchain_anthropic (#33463)

2025-10-13 15:12:54 -04:00

test_anthropic_tools.py

feat(langchain): support SystemMessage in create_agent's system_prompt (#34055)

2025-11-24 14:53:57 +00:00

test_bash.py

fix(anthropic): execute bash + file tools via tool node (#33960)

2025-11-14 13:17:01 -05:00

test_file_search.py

fix: adding missing async hooks (#33957)

2025-11-14 09:13:39 -05:00

test_prompt_caching.py

fix: deprecate setattr on ModelCallRequest (#34022)

2025-11-19 11:08:55 -05:00