Community integration: langchain-kudosity — SMS, MMS and RCS messaging tools

Hi! Following the standalone-package guidance in CONTRIBUTING.md ("Let us know by opening an issue or discussion so we can add it to the list of recommended integrations"), we've published langchain-kudosity — official tools from Kudosity (messaging platform) that let agents send SMS, MMS and RCS:

• npm: https://www.npmjs.com/package/langchain-kudosity · repo: https://github.com/kudosity/langchain-kudosity (MIT)
• Three StructuredTools (kudosity_send_sms / _mms / _rcs) built on @langchain/core (peer ^0.3 || ^1), zod input schemas, unit-tested, ESM+CJS
• API errors are returned to the model as structured JSON (RFC 9457 detail) so agents can self-correct rather than crash
• As far as we can tell it's the first RCS tool in the LangChain ecosystem (rich messaging with SMS fallback)

We'd love to be added to the recommended/community integrations list — happy to adjust anything to fit your docs conventions. Maintained by the Kudosity developer relations team.