Mistle

Helps engineering teams run reliable background agents for routine, well-scoped work.

Cost

Demo

Rating

★ Mixed Reviews

Time to value

Quick Setup (< 1 hour)

You can use Mistle to run autonomous coding agents that handle routine development work in the background. The agents work in sandboxed environments with full access to your codebase, tools, and services. They can investigate bugs, increase test coverage, refactor code, and build features while verifying their own output. Teams can assign tasks through Slack, GitHub, or Linear and get results with minimal supervision since agents validate their work before handoff.

What Mistle does

Debug production issues found in error trackingWrite unit tests for existing code functionsRefactor messy code sections for better readabilityBuild small features from detailed specificationsFix GitHub issues tagged for automationUpdate dependencies and handle breaking changesGenerate documentation for undocumented codePerform code reviews and suggest improvementsAgents verify their own code output before submissionRun in sandboxed virtual machines with full dev environmentDirect integration with GitHub issues and pull requestsSlack commands to assign tasks to coding agentsAutomatic bug investigation and fixing from Sentry alertsBackground agents work 24/7 on development backlogMirrored development environments with complete contextSame-day setup and deployment for teams