Distributed infrastructure · Active build
A job queue that treats dequeue as an admission decision.
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Headgate is a distributed job queue for teams that need more than 'give me N jobs.' Its admission gate evaluates rate limits, tenant fairness, concurrency budgets, and quarantine state atomically inside the store before a worker can claim work. The same core behavior is shared across Go and Rust and is exercised against PostgreSQL, MySQL, and Redis.
Most queues ask a worker which jobs it wants. Headgate asks what the fleet's current policy permits it to run. That shift brings rate limits, fairness, concurrency, and poison-pill handling into one atomic admission path instead of scattering them across workers.
A claim and its lease are written together, with fencing on every per-job operation. PostgreSQL and MySQL use one statement for the gate; Redis uses one Lua script. Policy-rejected jobs remain visible, while lease loss is explicit and actionable.
The project includes a control API, CLI, embedded web console, OpenTelemetry hooks, payload redaction, and a conformance register that ties capabilities to named evidence. The goal is a queue that is inspectable when the interesting failures happen.