The Plumber
AI-powered diagnosis of GitHub CI failures with actionable repair reports.
At a glance
- Editor score6.0 / 10
- PricingFree plan
- Best forGitHub Actions teams needing code-level failure reports
- Free planYes
- Flaky test detectionNo
- Facts checked26 Sep 2026
Where it wins
- Analyzes the failing commit and codebase for root causes
- Posts file, line, change, and verification details in comments
- Supports public and private repositories on the Pro plan
Where it doesn't
- Works only with GitHub Actions and GitHub repositories
- Does not detect flaky tests or provide test quarantine
- Free usage is limited to 5 analyses per month
Our verdict on The Plumber
The Plumber is a GitHub App for development teams that run continuous integration through GitHub Actions. When a workflow fails, it retrieves the CI logs through the GitHub API, clones the repository at the failing commit, and applies AI-powered reasoning across the codebase. It then posts a structured report to a commit or pull-request comment. The reports identify the failed step, explain the likely root cause, and include an exact file, line, change, and verification command. Teams working with public or private GitHub repositories can use it as a code-focused failure analysis layer.
The published plans show a Free option with 5 analyses per month, public-repository support, commit and pull-request comments, and the full Plumbing Report. Pro adds unlimited analyses and access for both public and private repositories while retaining comments and the full report. The service is cloud deployed and available through the web, with email listed as its support channel. This structure suits teams that want to start with limited public-repository analysis and move to broader repository coverage as their CI workload grows.
Its standout capability is the path from a failed workflow to a repository-aware explanation rather than a raw log summary. A temporary isolated analysis environment, exact code locations, and verification commands make the output useful for developers or AI coding agents working on a repair. The focus is deliberately narrow: GitHub Actions is the stated CI integration, and flaky-test detection and test quarantine are outside its scope. Choose The Plumber for GitHub-centered root-cause reports; teams needing multiple CI systems or dedicated flaky-test management should choose a more specialized alternative.
The Plumber pricing
All 2 The Plumber plans and prices →
The Plumber fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Flaky test detection | No |
| Failure root-cause analysis | Yes |
| AI fix suggestions | Yes |
| Test quarantine | No |
| CI integrations | GitHub Actions |
| Failure history | Not verified |
| Deployment | Cloud |
| Platforms | Web |
| Support | |
| Built for | Small business, Mid-market (editorial estimate) |
| Integrations | 2 integrations: GitHub Actions, GitHub |
| Pricing | Free plan (source) |
| Website | theplumber.dev |
| Facts checked | 26 Sep 2026 |
The Plumber integrations
The Plumber lists 2 integrations on its own site.
- GitHub Actions
- GitHub
Alternatives to The Plumber
- Datadog Test OptimizationA broad CI test toolkit for finding, managing, and investigating flaky tests.5.0
- MergifyCombines flaky-test analysis and quarantine with merge queues and CI workflows.7.0
- JenkinsFlexible self-managed CI infrastructure, but not a dedicated flaky-test analysis tool.—
See all The Plumber alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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