---
title: ".fabro file extension, human gate improvements, and user workflows"
date: "2026-03-13"
---

## .fabro file extension

Workflow files now use the `.fabro` extension instead of `.dot`. This gives workflows a distinct identity and avoids conflicts with Graphviz `.dot` files. Existing `.dot` files still work as a fallback — the engine checks for `graph.fabro` first, then falls back to `graph.dot`.

```toml
[workflow]
graph = "workflow.fabro"
```

<Warning>
**Breaking change.** Workflow files have been renamed from `.dot` to `.fabro`. Existing `.dot` files continue to work as a fallback, but new projects should use `.fabro`.
</Warning>

## Smarter human gates

Human-in-the-loop gates now show the previous stage's output before prompting, so you can see what the agent produced before deciding what to do next. Gates with only a freeform edge also skip the multiple-choice menu and go straight to a text input, making conversational loops like REPL workflows feel more natural.

## User-level workflows

Personal workflows stored in `~/.fabro/workflows/` are now available across all your projects. Drop a workflow into your home directory once and run it from anywhere with `fabro run <name>` — no need to copy it into each repo.

## More

<Accordion title="Workflows">
- New `thread_id_requires_fidelity_full` lint rule warns when `thread_id` is set without `fidelity=full`
- Added example REPL workflow for interactive agent loops
</Accordion>

<Accordion title="Improvements">
- Branding now appears in generated commits and PR descriptions
</Accordion>