A durable, open agent runtime and harness.
Use the SDK library and workflow to script in Python and build your application.
- Code with an agent in your terminal.
- Write workflows in plain Python. Steps retry, branch, pick up after a crash, and wait for a person when they need one.
- Add extensions, or use the SDK to build your own agents.
Being built in public.
Vera in action
A recorded Vera session: an answer, then switching models and filtering them by score.
Install
From a Vera checkout, install dependencies and activate a local release.
Then run vera in your project directory.
bun install
bun run install:localConnect a provider to start using a model.
Workflows in plain Python
Write each step as a function. Steps retry, branch like any Python, pick up after a crash, and can stop to ask a person.
Workflows are under heavy development, and the API will change.
from vera.workflow.api import ask, step, workflow
@step(retries=3)
def fetch(url: str) -> str: ...
@step
def publish(page: str) -> None: ...
@workflow
def review(url: str) -> str:
page = fetch(url)
if ask("Publish this page?") == "yes":
publish(page)
return page