Your coding agent writes code.
Arcanist ships software you can trust.

Arcanist opens PRs, tests them end-to-end in your environment, fixes failures, and delivers work engineers actually trust enough to merge.

Book a demo Read the manifesto →

“We stopped babysitting agent output and started merging again.”

#engineering
SP
Shivam Pandey2:14 PM
@arcanist checkout flow is throwing 500s on /payments. Can you pull the Sentry errors, find the root cause, and open a PR with the fix?
A
ArcanistAPP2:14 PM
On it. Pulling Sentry errors for /payments...
Found it. Null pointer in stripe_handler.py:142. Opening PR now.
A
ArcanistAPP2:17 PM
PR #847 verified end-to-end. CI passing.
Fix null check in payment processing
“We went from mass-reviewing agent PRs to mass-merging them. Arcanist verifies the work before it ever reaches review.”
“I submit a morning’s worth of bugs before standup and review results by lunch. I used to spend all morning on just two.”
“Our CX team stopped filing engineering tickets for customer investigations. They ask in Slack and get the full story in minutes.”
— 01

Submit in Slack.
Get verified PRs.

Describe what you need in plain English, right where your team already works. Arcanist works in the background. It reads your codebase, writes the change, runs your tests end-to-end, fixes failures, and opens a PR ready for review. Every task teaches it more about your repo, checks, and review standards.

GitHubSentryDatadogLinearSlackCI/CD
01

Connect

Link your GitHub repos, Slack workspace, and tools: Sentry, Datadog, Linear, your CI.

02

Describe

Tag @arcanist in any Slack channel with what you need done. Plain English. No templates.

03

Verify

Arcanist runs the change end-to-end, reads failures, fixes the issue, and re-pushes until the PR is ready to merge.

— 02

Launch more work without creating more review debt.

Stop context-switching between two or three threads. Submit as many tasks as you want. Each runs in its own isolated cloud environment, verifies before handoff, and returns as reviewable work instead of cleanup work.

Fix null check in paymentscompleted
Add rate limiting to /uploadcompleted
Update onboarding flow copyrunning
Investigate flaky test in authrunning
Add retry logic to webhooksrunning
Migrate user schema v3queued
— 03

Every team stops waiting on engineering.

Once Arcanist understands your company, it's not just engineers who benefit. CX asks about a customer bug in Slack and gets the full story (code, logs, recent changes, related incidents) in minutes instead of days.

#cx-escalations
KR
Katie Rodriguez10:22 AM
@arcanist Customer acme-corp is reporting their webhook deliveries are failing since yesterday. Can you investigate?
A
ArcanistAPP10:23 AM
Investigating. Checking codebase, Sentry, deploy history, and Datadog logs...
Found it. Yesterday's deploy (PR #831) changed the webhook retry logic. The new retry backoff is exceeding acme-corp's timeout window of 5s. Three options:
  1. Revert the retry change for their endpoint
  2. Increase their timeout configuration
  3. Add a fast-path for webhooks under 5s
KR
Katie Rodriguez10:25 AM
That's exactly what we needed. Can you open a PR for option 3?
A
ArcanistAPP10:26 AM
PR #852 ready. Adds a fast-path for webhook deliveries under the configured timeout. CI passing.
Add fast-path for short-timeout webhooks
— 04

Here's what your first 30 days look like.

Book a demo →

Hour 1
Week 1
Day 30

Get started.

Connect your repos and Slack in two minutes
Submit your first task in plain English
Review a verified PR before your next meeting

Get comfortable.

Arcanist learns your CI, tests, and conventions
Run tasks in parallel across multiple repos
Non-engineering teams start asking questions

Ask why you didn't switch sooner.

100+ PRs merged without review debt
CX resolves issues without filing tickets
Engineering ships 3× more per sprint
— FAQ

How is this different from other coding agents?

Most coding agents write code and leave verification to the engineer. Arcanist runs the change end-to-end in your environment, fixes failures, and learns your CI pipeline, naming conventions, deploy process, and test patterns.

Is this safe for production codebases?

Every task runs in an isolated cloud sandbox. The agent creates PRs on feature branches. You review and merge, same as you would from any engineer. Sensitive files are automatically blocked.

How does Arcanist learn our environment?

From the first task, Arcanist reads your code, CI configuration, test patterns, and commit history. Each run deepens its understanding from tests, failures, fixes, and review feedback, so future tasks start with your full context instead of starting cold.

What if the agent gets something wrong?

Arcanist verifies before handoff. It runs tests end-to-end, reads CI and runtime failures, fixes the issue, and re-pushes. You still review and merge, but you are reviewing work that has already survived the same checks your team trusts.

Can Arcanist run inside our VPC?

Yes. Arcanist deploys inside your perimeter so code, secrets, and runtime data never leave your environment. Cloud, in-VPC, and on-prem deployment are supported, and the agent's sandboxes run alongside your existing infrastructure.

What does our security team get?

Every agent action is captured in an immutable audit log: repo reads, tool calls, sandbox commands, PR pushes. Sensitive paths can be blocked outright. SSO and role-based controls plug into the same review surface your team already uses.

Stop babysitting agent code.

See what verified, merge-ready work actually looks like.

Request access →