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FEATUREDcoming-soon
Mutation Test Generator
Replaces a $55k QA Tester. Mutates code, finds the gaps, drafts the missing tests.
The Problem
An SMB or small dev team spends $55k/yr on a QA Tester who writes unit tests for new PRs and audits coverage. The agent runs Stryker mutation testing — mutates the diff, finds the lines no test catches, drafts the missing tests, opens a follow-up PR.
The Outcome
PR opened → agent runs Stryker against the diff, finds surviving mutants (lines no test catches), drafts the missing tests + opens a stacked PR. Mutation score posted as a PR check.
Day in the Life
1.
On every PR: runs stryker run on the diff'd files only
2.
For every surviving mutant: drafts a unit test that would have killed it
3.
Opens a stacked PR with the new tests + posts the mutation score on the parent PR check
Deploy Specs
Runtime
node
Pattern
native-agent
Tier
heavy
Setup Time
hours
Required Env Vars
GITHUB_TOKENANTHROPIC_API_KEYIntegrations
StrykerGitHubJest
GitHub Source
Repository
stryker-mutator/stryker-js
Stars
2,847
License
Apache-2.0
Last Commit
2026-04-29
Replace
QA Tester
$55,000/yr
AgentDepot
$299/month
Save $51,412/yr · 15.3x cheaper
14-day free trial · No credit card
Also Replaces
×Codecov Pro $29/mo
×Mutating-tester SaaS $50/mo
Not Technical?
Expert Setup — $499
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