Systems

This section covers the internal subsystems that hold the Agent together — code that doesn't map cleanly to a single binary or feature, but underlies many of them.

Page	What it covers
Components framework	The Fx-based dependency injection framework under comp/. The plumbing every binary is built from.
Check runtime	The collector that schedules and runs Python and Go checks.
Aggregator pipeline	TimeSampler, CheckSampler, demultiplexer, context resolution.
Forwarder and serializer	HTTP forwarder, retry/backoff, disk queue, and the serializer chain.
Autodiscovery	How the Agent dynamically configures checks based on observed workloads.
Workloadmeta and tagger	The shared metadata store and tag resolver.
Remote Config	Pulling configuration overrides from the Datadog backend at runtime.

These systems are mostly horizontal — they appear in many binaries and feed many features. Per-binary detail lives under Apps; per-product detail lives under Features.