Disposable production twins
Builds a disposable production twin around a pull request so a change runs against production-shaped infrastructure before merge. The twin is temporary and deletes itself after the run.
Antifailure
Antifailure creates a disposable copy of your production stack for each pull request so teams can catch migration issues, side effects, and other deploy-time failures before merge. It runs locally without an account for the core engine, with an optional hosted control plane for team coordination.
What Antifailure does
Antifailure is a pre-production deployment safety tool that creates a disposable copy of your production stack for each risky change or pull request. It runs the change against a production-shaped environment before merge, then tears the environment down when the run completes.
The product is designed to catch issues that are hard to see in unit tests or staging clones: migration locks, unsafe query plans, side effects to external services, and behavior under realistic load. The source describes a local engine that can run without an account, plus a hosted control plane for team coordination and reporting.
Core capabilities
Sanitized database state
Uses masked Postgres to preserve referential structure while replacing real names and sensitive values. When a production database connection is available, the twin holds a masked copy of that database.
Contained third-party APIs and egress
Contains side effects by replacing live services with controlled versions such as Stripe, email, and DNS handling. The source shows requests being denied or captured inside the twin instead of reaching real external systems.
Workflow rehearsal with evidence
Runs agents through declared workflows and returns verdicts with evidence, including findings, traces, and teardown proof. The agent can use the app through browser-driven rehearsal rather than a synthetic stub.
Migration safety checks
Can test migration safety by checking locks, query plans, and rewrite behavior before a schema change ships. The product highlights exclusive lock timing, waiting sessions, and whether a table rewrite occurs.
Local engine, CLI, and MCP server
Provides a local engine, CLI, and MCP server that install with one command and can run without an account. The MCP server serves rehearsal tools to coding agents over standard input and output.
Practical ways teams use Antifailure
Pull-request validation
Run a branch against a disposable twin before merge to see whether the release will behave correctly with production-shaped data, services, and traffic patterns.
Migration rehearsal
Rehearse database migrations and schema changes to detect exclusive locks, table rewrites, and planner regressions before they reach customers.
Side-effect-safe integration testing
Exercise external-service paths such as payments, email, and DNS in containment so the app can be tested without hitting real third-party endpoints.
Agent-assisted change verification
Have coding agents operate the app through the MCP server and browser-driven workflows to check how changes behave in a more realistic way than unit tests.
Team-wide safety checks
Use the hosted control plane when a team needs shared orchestration, pull-request checks, and aggregated reports across repositories.
Pros and Cons
Pros
- Creates a disposable production twin for each pull request or risky change, which is useful for catching deploy-time failures before merge.
- Supports masked Postgres and preserved referential state so production-like data shape can be exercised without exposing live names.
- Contains side effects and denies unknown destinations, reducing the chance that rehearsal traffic reaches real external services.
- Produces evidence from runs, including findings and teardown proof, which makes safety checks easier to review.
- Offers a local engine that can run on your own machine or in CI without an account, with a separate hosted control plane for teams.
Cons
- The source only partially documents integrations beyond Postgres, Stripe, email, DNS, and the MCP server, so stack support is not fully clear from the pages provided.
- Advanced team, governance, and enterprise controls are listed on the pricing page, but the operational details behind them are limited in the available copy.
FAQ
Do I need an account to use Antifailure?
No. The quickstart says Antifailure runs locally on your own machine and does not require an account, control plane, or cloud provider. An account is only needed for the hosted control plane used to coordinate environments across a team.
Is the engine open source?
Yes. The engine is described as MIT licensed, with the hosted control plane optional. The pricing page also says the community engine is free and works without an account.
What does the quickstart require?
The quickstart says the local setup needs Docker. A Postgres connection string is optional; if provided, Antifailure creates a masked copy of that database, and if not, it uses the schema created by your migrations.
What happens when a free limit is reached?
The pricing page says the control plane enforces limits for organizations without a live subscription. It refuses the next environment or invitation when a limit is reached, but does not tear down anything already running.
Is the MCP server free?
The pricing page says the MCP server is part of the engine, needs no account, runs on your machine, and is free.
Quick Facts
- Category
- Developer Tool
- Primary use
- Pre-production deployment safety
- Deployment model
- Local engine plus optional hosted control plane
- Source license
- MIT for the engine and most non-ee components
- Pricing
- Free community engine, paid Team plan, and enterprise pricing on request
- Website
- antifailure.dev
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