The open full-stack AI framework

import yera as yr

@yr.app
def chatbot():
    for msg in yr.chat():
        yr.response(msg)

import yera as yr

class Invoice(yr.Struct):
    vendor: str
    total: float
    due_date: str

@yr.app
def read_invoice(text: str) -> Invoice:
    yr.insert(text)
    return Invoice.fill(instruction="Extract the invoice details.")

import httpx
import yera as yr

@yr.tool
def get_weather(city: str) -> dict:
    return httpx.get(f"https://wttr.in/{city}?format=j1", timeout=10).json()

@yr.app
def weather():
    for msg in yr.chat():
        yr.insert(msg)
        get_weather.invoke(instruction="Get the weather for the city mentioned.")
        yr.gen(instruction="Answer using the forecast.")

import yera as yr

search_docs = yr.mcp_tools.my_mcp.search_docs

@yr.app
def docs_helper(question: str):
    yr.insert(question)
    search_docs.invoke(instruction="Search the docs for this question.")
    yr.gen(instruction="Answer using what you found.")

import yera as yr

@yr.app
def triage(ticket: str):
    yr.insert(ticket)
    urgency = yr.select("urgent", "normal", instruction="How urgent is this?")

    if urgency == "urgent":
        yr.response("Reply promising a call back within the hour.")
    else:
        yr.response("Reply with a friendly acknowledgement.")

import yera as yr

@yr.app(sys_prompt="You write short blog posts.")
def writer(topic: str) -> str:
    return yr.response(topic)

@yr.app(sys_prompt="You edit drafts to be clear and concise.")
def editor(draft: str) -> str:
    return yr.response(draft)

@yr.app
def blog_team(topic: str):
    draft = writer(topic)
    editor(draft)

import yera as yr

@yr.app
def trip_planner():
    city = yr.text_input("Where are you going?")
    pace = yr.buttons(["Relaxed", "Packed"], label="What pace?")
    yr.response(f"Plan a {pace} day in {city}.")