# timeless_metrics v6.6.7 - Table of Contents

> Embedded time series database for Elixir with a Rust-native hot path.

## Pages

- [README](readme.md)
- [LICENSE](license.md)
- [rust_engine → libSQL Conversion Holds Whole Series In Memory](2026-08-09_libsql_conversion_memory.md)
- [TimelessMetrics API Reference](api.md)
- [Alerting](alerting.md)
- [Annotations](annotations.md)
- [Architecture](architecture.md)
- [Capacity Planning with TimelessMetrics](capacity_planning.md)
- [Charts & Embedding](charts.md)
- [Configuration Reference](configuration.md)
- [Intelligent DevOps Monitor with Jido](devops_monitor_jido.md)
- [Forecasting & Anomaly Detection](forecasting.md)
- [Getting Started](getting_started.md)
- [tms_engine Rust/NIF Code Review - Action Items](glm-todo.md)
- [Grafana Integration](grafana.md)
- [Operations](operations.md)
- [Rust Engine Optimization Notes](rust_engine_optimization_notes.md)
- [TimelessMetrics Scaling Notes](scaling_options.md)
- [Scraping](scraping.md)
- [TimelessMetrics Global Registry (Future Project)](timeless_global_registry.md)
- [TimelessMetrics UI — Requirements](timeless_ui_requirements.md)

## Modules

- [TimelessMetrics](TimelessMetrics.md): Embedded time series storage for Elixir.
- [TimelessMetrics.Aggregation](TimelessMetrics.Aggregation.md): Shared aggregation helpers for the actor engine.
- [TimelessMetrics.Alert](TimelessMetrics.Alert.md): Alert engine that evaluates threshold rules against metric data.
- [TimelessMetrics.AlertEvaluator](TimelessMetrics.AlertEvaluator.md): Periodic alert evaluation timer.
- [TimelessMetrics.Anomaly](TimelessMetrics.Anomaly.md): Anomaly detection via z-score analysis on residuals from a trend model.
- [TimelessMetrics.Application](TimelessMetrics.Application.md)
- [TimelessMetrics.Buffer](TimelessMetrics.Buffer.md): Sharded ETS write buffer.
- [TimelessMetrics.Chart](TimelessMetrics.Chart.md): Pure-Elixir SVG chart generator for time series data.
- [TimelessMetrics.DB](TimelessMetrics.DB.md): SQLite connection manager with a single writer and pooled readers.
- [TimelessMetrics.Dashboard](TimelessMetrics.Dashboard.md): Zero-dependency HTML dashboard generator.
- [TimelessMetrics.DataGenerator](TimelessMetrics.DataGenerator.md): Realistic telemetry data generators for benchmarks and testing.
- [TimelessMetrics.DictTrainer](TimelessMetrics.DictTrainer.md): Manages zstd dictionaries for legacy compressed segments.
- [TimelessMetrics.Forecast](TimelessMetrics.Forecast.md): Time series forecasting using linear regression with seasonal features.
- [TimelessMetrics.HTTP](TimelessMetrics.HTTP.md): Optional HTTP ingest interface compatible with VictoriaMetrics JSON line import format.
- [TimelessMetrics.IngestWorker](TimelessMetrics.IngestWorker.md): Background ingest worker that drains raw HTTP bodies from an ETS queue,
parses them, resolves series, and writes to Buffer shards.
- [TimelessMetrics.LabelMatch](TimelessMetrics.LabelMatch.md): Shared label-filter matching for query paths (both engines).
- [TimelessMetrics.LibsqlEngine](TimelessMetrics.LibsqlEngine.md): SQLite/libSQL-backed metrics engine.
- [TimelessMetrics.LibsqlMigration](TimelessMetrics.LibsqlMigration.md): Offline, verified migration from the filesystem Rust engine to libSQL.
- [TimelessMetrics.PromQL](TimelessMetrics.PromQL.md): PromQL parser and evaluator for the Prometheus/VictoriaMetrics-compatible API.
- [TimelessMetrics.PrometheusNif](TimelessMetrics.PrometheusNif.md): NIF-based Prometheus text format parser.
- [TimelessMetrics.Query](TimelessMetrics.Query.md): Query engine with automatic tier selection.
- [TimelessMetrics.Retention](TimelessMetrics.Retention.md): Tier-aware retention enforcer.
- [TimelessMetrics.Rollup](TimelessMetrics.Rollup.md): Sharded rollup engine.
- [TimelessMetrics.RustEngine](TimelessMetrics.RustEngine.md): Rust-native storage engine backend for TimelessMetrics.
- [TimelessMetrics.Schema](TimelessMetrics.Schema.md): Declarative DSL for defining metric storage tiers, retention, and rollup schedules.
- [TimelessMetrics.SegmentBuilder](TimelessMetrics.SegmentBuilder.md): Accumulates points per series and writes compressed segments to file-based
storage (ShardStore).
- [TimelessMetrics.SeriesRegistry](TimelessMetrics.SeriesRegistry.md): Hybrid persistent_term + ETS series ID lookup and registration.
- [TimelessMetrics.ShardStore](TimelessMetrics.ShardStore.md): File-based storage backend for raw time series segments and tier chunks.
- [TimelessMetrics.TextCodec](TimelessMetrics.TextCodec.md): RLE + zstd compression codec for text time-series.
- [TimelessMetrics.TierChunk](TimelessMetrics.TierChunk.md): Codec for compressed tier segments.
- [TimelessMetrics.Transform](TimelessMetrics.Transform.md): Post-query value transforms for unit conversion.

## Mix Tasks

- [mix timeless_metrics.migrate_libsql](Mix.Tasks.TimelessMetrics.MigrateLibsql.md): Stages and verifies a filesystem-Rust-engine migration.