Apps

The repository builds two binaries. Both share the same Go module and reuse most subsystems via internal imports.

App	Source	What it does
prometheus	cmd/prometheus/	The main server: scrapes targets, stores samples, evaluates rules, dispatches alerts, serves the HTTP API and UI. Runs in either server mode or agent mode.
promtool	cmd/promtool/	Operator/developer CLI for config validation, querying a remote server, debugging and benchmarking the TSDB, importing metrics, and running rule unit tests.

Both binaries are entry points for the github.com/prometheus/prometheus Go module — they use the libraries documented in Subsystems and the cross-cutting Features.