Tiger

Tiger is a CLI tool for managing CI/CD infrastructure. It polls Azure DevOps pipelines for completed builds, stores results in a local SQLite database, detects flaky tests, and serves MCP tools for a copilot console experience.

See docs/architecture.md for full design details and docs/todo.md for the work plan.

Prerequisites

1. Be connected to the VPN.
2. This tool uses Azure Identity for authentication — use az login to authenticate. You can also use az account set -s <subscription name> to set the subscription.

Building

dotnet build Tiger.slnx

Running

dotnet run --project src/Tiger

Retrying Azure DevOps pipelines

tiger azdo retry 12345 --org dnceng-public --project public
tiger azdo retry 12345 --failed-only --org dnceng-public --project public
tiger azdo retry --pr 42 --repo dotnet/roslyn --org dnceng-public --project public
tiger azdo retry --pr 42 --repo dotnet/roslyn --org dnceng-public --failed-only

The default queues a full rerun with a new build ID using the original pipeline, branch, commit, and parameters. --failed-only retries failed jobs in the existing run without rerunning successful jobs, subject to Azure DevOps eligibility and dependency rules. Both commands return the resulting build as JSON and require permission to queue/retry builds. An unsupported failed-job retry fails; it does not fall back to a full rerun. Full retries can also be rejected by Azure DevOps queue-time variable policies, including restrictions on copying PR system variables from the original build. The command reports the server's error details without bypassing these policies.

Use either a build ID or --pr with --repo owner/repo, not both. PR mode queries live Azure DevOps and targets the single most recently queued build for that PR in the selected organization/project, across all pipelines and regardless of status or result. If no build matches, the command fails without retrying anything. Both forms accept --org and --project (defaults: dnceng-public and public).