Taskcluster

Spec sheet

Purpose

Taskcluster is an open-source task execution framework for building customized continuous integration and release processes.Read 8 Oct 2026 · taskcluster.net

API

Platform access is through REST API methods, with client libraries for multiple languages.Read 8 Oct 2026 · taskcluster.net

Access control

API method access is controlled through granular scopes that support delegation patterns.Read 8 Oct 2026 · taskcluster.net

GitHub integration

The homepage says Taskcluster can create tasks for GitHub pushes, pull requests, and tags, and report results through GitHub checks.Read 8 Oct 2026 · taskcluster.net

Interactive debugging

Users can access running workers through a browser using interactive shell, VNC, or RDP sessions.Read 8 Oct 2026 · taskcluster.net

Mozilla use

The framework supports Mozilla’s continuous integration and release processes.Read 8 Oct 2026 · github.com

Operating systems

The homepage says Mozilla runs workers on Linux, macOS, Windows variants, and mobile devices.Read 8 Oct 2026 · taskcluster.net

Scale

The homepage says Mozilla's Firefox CI deployment routinely runs over 7,000,000 tasks per month and can handle 350,000 concurrent tasks.Read 8 Oct 2026 · taskcluster.net

Scale and customization

The site describes Taskcluster as flexible and scalable for complex CI workflows.Read 8 Oct 2026 · taskcluster.net

Scheduling

Scheduled tasks can run at specific times or days for jobs such as nightly builds and periodic maintenance.Read 8 Oct 2026 · taskcluster.net

Security reporting

The repository directs external vulnerability reports to Mozilla’s HackerOne program.Read 8 Oct 2026 · github.com

Support and community

The homepage invites users to contact the Taskcluster team by email at [email protected] or in the #taskcluster:mozilla.org chat room.Read 8 Oct 2026 · taskcluster.net

Task graphs

Tasks can be organized into dependency graphs, such as tests depending on build tasks.Read 8 Oct 2026 · taskcluster.net

Worker infrastructure

Workers can run on cloud instances or a user's own hardware, and the homepage lists AWS, GCP, Azure, packet.net, bitbar, and datacenter hardware as supported options.Read 8 Oct 2026 · taskcluster.net

Where Specifiction places it

• Task Queue Software#35 of 376.7
• Continuous Integration Software#55 of 586.6