Now running
Fix the checkout test
Checks 2 of 3 passed
macaron/site2m ago
In your browser
Macaron app
Start agents on machines of their own, keep your keys encrypted, and read each run's receipt and diff, all in one place.
[ Meet Macaron ]
AI,in every flavor.
Work on code or clean up a draft. Macaron brings tools for creating, transforming, and checking your work into one place.
One Macaron · Different flavors
A codebase
Checks · after the agent's turn
- test✓ Passed
- lint✓ Fixed
- typecheck◐ Running
Claude Code or Codex changes it in a computer of its own. Checks run before you keep anything.
A draft
In today's fast-paced world, our team leverages synergy to ship.
✓ Fixed Our team works together to ship.
Formulaic phrasing gets flagged. You choose which fixes to keep.
[ Choose a task ]
What do you want to do?
Start with code or a draft. Each task has a place in Macaron.
Available on desktop and web
Describe the change you want.
Bring a repository and describe the change. Work with your coding agents, review the diff, and keep the changes that pass your checks.
Try a task like
Fix the checkout test. Then clean up the generated code.
[ Work where it suits you ]
On your desktop or in your browser.
Start Code on your own machine or in the web app. Check and clean up prose in your browser. Deeper model rewrites are still in testing.
On your desktop
Macaron
The harness for the agents you already use. Claude Code, Codex and more run in computers of their own, and every turn is checked and can be undone.
Stop.
Start.
Copy.
- Local
- Cloud
On a machine of its own
Local or cloud
Each agent gets its own Linux machine. Stop it when you're done, start it again when you need it, or copy it to try something risky.
[ Try the Code flavor ]
Have Macaron fix the flaky checkout test in your repository and
Say it the way you'd say it to a person. Macaron works in its own machine, runs your checks, and hands back a change you can read line by line before you keep it.
3 blanks · about 30 seconds
Run-00847macaron/site
Fix the checkout test
2 checks passed
Review the diff
Undo a turn
4Agents, one harness
Checked before it counts
- Checks before and after
- A machine of its own
- Every turn can be undone
Macaron runs the agents you already use on a machine of their own, checks every turn, and hands back a receipt. From the first sentence to the change you keep.
OverviewNew run
Good evening, maya
What's running, what finished, and what you can pick up next.
Machines running
2 of 3
Credit
$48.20
Active runs
1
Runs this week
9
Recent runs All runs
- Fix the flaky checkout testmacaron/site · claude-sonnet-5-5 · complete4m ago
- Add rate limiting to loginmacaron/api · claude-opus-5-5 · runningjust now
- Upgrade to React 20macaron/web · claude-sonnet-5-5 · complete2h ago
- Remove narrating commentsmacaron/site · claude-sonnet-5-5 · complete1d ago
Activity All activity
- MMacaron finished Fix the flaky checkout test
- mmaya ran bun test checkout
- mmaya saved src/cart.ts
- mmaya started Add rate limiting to login
[ Inside the Code flavor ]
From one sentence to a change you trust.
For coding work, Macaron keeps the checks, review, and receipt together.
01Describe
Say it the way you would to a teammate
02Check
Your checks run before and after the agent
03Keep or let go
Stop the machine, start it again, or copy it
A receipt
you can read.
Run-00847
- What changed
- The checkout test now waits for the cart request instead of a fixed delay. Nothing else in the repository was touched.
- Checks
- test passed before and after. lint passed. Not verified: the payment sandbox.
- Reviewer
- Still reading the diff.
macaron/site · checkout.spec.ts:41bun test checkout
An example run. Yours is built from what actually ran.
- Checks before and after
- Files that changed
- What nobody verified
[ Start with Code ]
The work you'd rather hand off.
Bring your own keys and pick the model per task. Macaron keeps the rest the same: the machine, the checks, the review and the receipt.
Fix a failing test
Fix the cause, not the test.
The clearest job you can hand an agent: it's done when the test passes and nothing else breaks. Macaron is told to fix the cause, never loosen the test.
- Your checks run before and after
- Tests are never weakened to pass
- A diff to read before you keep it
Review AI-written code
Check the work against facts.
A receipt built from the run itself, plus an optional second model reviewing the diff, so you check the work against facts rather than a summary.
- A receipt of what actually ran
- An optional second model as reviewer
- What nobody verified, listed
Clean up AI-generated code
Tidy what the model left behind.
Narrating comments, catch blocks that only rethrow, conditionals that return true or false. Macaron finds them and fixes the safe ones.
- Narrating comments
- Catch blocks that only rethrow
- Conditionals that return true or false
Run it while you do something else
Close the laptop. Come back to the receipt.
Runs happen on a machine of their own and keep going when you close your laptop. Come back to the receipt.
- Each run on its own machine
- Keeps going while you're away
- Stop it, start it, or fork it
AI is brighter than it seems.
The way you work with it matters. Macaron brings different ways of creating, transforming, and checking your work under one roof. Start with a task. Find the flavor that fits. Keep the result you want.
More flavors are in development: Patois for deeper prose rewrites, Write, and Research. We’re building toward a workspace that carries your files, context, and history between flavors. That shared workflow is still ahead.