# Effect Documentation for LLMs

> Effect is a powerful TypeScript library designed to help developers easily create complex, synchronous, and asynchronous programs.

## Docs

- [Batching](https://effect.website/docs/batching/): Optimize performance by batching requests and reducing redundant API calls, enhancing efficiency in data fetching and processing.
- [Configuration](https://effect.website/docs/configuration/): Efficiently manage application configurations with built-in types, flexible providers, and advanced features like defaults, validation, and redaction.
- [Introduction to Runtime](https://effect.website/docs/runtime/): Learn how Effect's runtime system executes concurrent programs, manages resources, and handles configuration with flexibility and efficiency.
- [API Reference](https://effect.website/docs/additional-resources/api-reference/): API docs covering tools, integrations, and functional programming features.
- [Coming From ZIO](https://effect.website/docs/additional-resources/coming-from-zio/): Key differences between Effect and ZIO.
- [Effect vs fp-ts](https://effect.website/docs/additional-resources/effect-vs-fp-ts/): Comparison of Effect and fp-ts, covering features like typed services, resource management, concurrency, and stream processing.
- [Effect vs Promise](https://effect.website/docs/additional-resources/effect-vs-promise/): Comparison of Effect and Promise, covering features like type safety, concurrency, and error handling.
- [Myths About Effect](https://effect.website/docs/additional-resources/myths/): Debunking common misconceptions about Effect's performance, complexity, and use cases.
- [Equivalence](https://effect.website/docs/behaviour/equivalence/): Define and customize equivalence relations for TypeScript values.
- [Order](https://effect.website/docs/behaviour/order/): Compare, sort, and manage value ordering with customizable tools for TypeScript.
- [Cache](https://effect.website/docs/caching/cache/): Optimize performance with cache for concurrent, compositional, and efficient value retrieval.
- [Caching Effects](https://effect.website/docs/caching/caching-effects/): Efficiently manage caching and memoization of effects with reusable tools.
- [Branded Types](https://effect.website/docs/code-style/branded-types/): Use branded types to enforce type safety and refine data in TypeScript.
- [Simplifying Excessive Nesting](https://effect.website/docs/code-style/do/): Simplify nested code with Do simulation and generators.
- [Dual APIs](https://effect.website/docs/code-style/dual/): Explore data-first and data-last variants of dual APIs in the Effect ecosystem.
- [Guidelines](https://effect.website/docs/code-style/guidelines/): Best practices for running Effect applications and ensuring safe, explicit coding styles.
- [Pattern Matching](https://effect.website/docs/code-style/pattern-matching/): Simplify complex branching with pattern matching using the Match module.
- [Basic Concurrency](https://effect.website/docs/concurrency/basic-concurrency/): Manage and control effect execution with concurrency, interruptions, and racing.
- [Deferred](https://effect.website/docs/concurrency/deferred/): Master asynchronous coordination with Deferred, a one-time variable for managing effect synchronization and communication.
- [Fibers](https://effect.website/docs/concurrency/fibers/): Understand fibers in Effect, lightweight virtual threads enabling powerful concurrency, structured lifecycles, and efficient resource management for responsive applications.
- [Latch](https://effect.website/docs/concurrency/latch/): A Latch synchronizes fibers by allowing them to wait until a specific event occurs, controlling access based on its open or closed state.
- [PubSub](https://effect.website/docs/concurrency/pubsub/): Effortless message broadcasting and asynchronous communication with PubSub in Effect.
- [Queue](https://effect.website/docs/concurrency/queue/): Learn how to use Effect's Queue for lightweight, type-safe, and asynchronous workflows with built-in back-pressure.
- [Semaphore](https://effect.website/docs/concurrency/semaphore/): Learn to use semaphores in Effect for precise control of concurrency, managing resource access, and coordinating asynchronous tasks effectively.
- [BigDecimal](https://effect.website/docs/data-types/bigdecimal/): The BigDecimal data type represents arbitrary-precision decimal numbers.
- [Cause](https://effect.website/docs/data-types/cause/): Comprehensive error analysis with Cause in Effect - track failures, defects, and interruptions with precise details.
- [Chunk](https://effect.website/docs/data-types/chunk/): Learn about Chunk, a high-performance immutable data structure in Effect, offering efficient operations like concatenation, slicing, and conversions.
- [Data](https://effect.website/docs/data-types/data/): Define immutable data structures, ensure equality, and manage errors seamlessly with Effect's Data module.
- [DateTime](https://effect.website/docs/data-types/datetime/): Work with precise points in time using Effect's DateTime, supporting creation, comparison, and arithmetic operations for efficient time handling.
- [Duration](https://effect.website/docs/data-types/duration/): Work with precise time spans using Effect's Duration, supporting creation, comparison, and arithmetic operations for efficient time handling.
- [Either](https://effect.website/docs/data-types/either/): Represent exclusive values as Left or Right with the Either data type, enabling precise control flow in computations.
- [Exit](https://effect.website/docs/data-types/exit/): Represent the result of an Effect workflow with Exit, capturing success values or failure causes.
- [Option](https://effect.website/docs/data-types/option/): Represent optional values with Option, supporting presence (Some) or absence (None) and seamless operations like mapping, combining, and pattern matching.
- [Redacted](https://effect.website/docs/data-types/redacted/): Securely handle sensitive data with the Redacted module, preventing accidental exposure in logs while supporting safe value access and comparison.
- [Error Accumulation](https://effect.website/docs/error-management/error-accumulation/): Learn to manage errors effectively in Effect workflows with tools for sequential execution, error accumulation, and result partitioning.
- [Error Channel Operations](https://effect.website/docs/error-management/error-channel-operations/): Explore operations on the error channel in Effect, including error mapping, filtering, inspecting, merging, and flipping channels.
- [Expected Errors](https://effect.website/docs/error-management/expected-errors/): Learn how Effect manages expected errors with precise error tracking, short-circuiting, and powerful recovery techniques.
- [Fallback](https://effect.website/docs/error-management/fallback/): Learn techniques to handle failures and implement fallback mechanisms in Effect programs.
- [Matching](https://effect.website/docs/error-management/matching/): Learn to handle success and failure cases in Effect programs with tools for pattern matching, value ignoring, side effects, and precise failure analysis.
- [Retrying](https://effect.website/docs/error-management/retrying/): Enhance resilience with Effect's retrying strategies, enabling robust handling of transient failures with customizable retry policies and fallback mechanisms.
- [Parallel and Sequential Errors](https://effect.website/docs/error-management/parallel-and-sequential-errors/): Handle concurrent and sequential errors in Effect programs, capturing multiple failures and ensuring robust error management in concurrent and sequential workflows.
- [Sandboxing](https://effect.website/docs/error-management/sandboxing/): Master error handling in Effect with sandboxing, enabling detailed inspection and recovery from failures, defects, and interruptions.
- [Timing Out](https://effect.website/docs/error-management/timing-out/): Set time limits on operations with Effect, ensuring tasks complete within specified durations and customizing behavior for timeouts.
- [Two Types of Errors](https://effect.website/docs/error-management/two-error-types/): Learn how Effect differentiates between expected and unexpected errors to enhance error tracking and recovery.
- [Unexpected Errors](https://effect.website/docs/error-management/unexpected-errors/): Understand how Effect handles unexpected errors with tools to manage defects, terminate execution, and selectively recover from critical failures.
- [Yieldable Errors](https://effect.website/docs/error-management/yieldable-errors/): Explore yieldable errors in Effect programming for seamless error handling in generator functions using custom and tagged error constructors.
- [Building Pipelines](https://effect.website/docs/getting-started/building-pipelines/): Learn to create modular, readable pipelines for composing and sequencing operations in Effect, enabling clear and efficient data transformations.
- [Control Flow Operators](https://effect.website/docs/getting-started/control-flow/): Learn to control execution flow in Effect programs using advanced constructs for conditional branching, iteration, and combining effects seamlessly.
- [Create Effect App](https://effect.website/docs/getting-started/create-effect-app/): Quickly set up a new Effect application with a customizable template or example, streamlining your development start.
- [Creating Effects](https://effect.website/docs/getting-started/creating-effects/): Learn to create and manage effects for structured handling of success, failure, and side effects in synchronous and asynchronous workflows.
- [Importing Effect](https://effect.website/docs/getting-started/importing-effect/): Get started with Effect by installing the package and importing essential modules and functions for building type-safe, modular applications.
- [Installation](https://effect.website/docs/getting-started/installation/): Set up a new Effect project across different platforms like Node.js, Deno, Bun, and Vite + React with step-by-step installation guides.
- [Introduction](https://effect.website/docs/getting-started/introduction/): Explore Effect, a TypeScript library for building scalable, maintainable, and type-safe applications with advanced concurrency, error handling, and resource management.
- [Running Effects](https://effect.website/docs/getting-started/running-effects/): Learn how to execute effects in Effect with various functions for synchronous and asynchronous execution, including handling results and managing error outcomes.
- [The Effect Type](https://effect.website/docs/getting-started/the-effect-type/): Understand the Effect type in the Effect ecosystem, which models immutable, lazy workflows with type-safe success, error, and requirement handling for effectful computations.
- [Using Generators](https://effect.website/docs/getting-started/using-generators/): Learn how to use generators in Effect for writing effectful code, enhancing control flow, handling errors, and simplifying asynchronous operations with a syntax similar to async/await.
- [Why Effect?](https://effect.website/docs/getting-started/why-effect/): Discover how Effect transforms TypeScript programming by using the type system to track errors, context, and success, offering practical solutions for building reliable, maintainable applications.
- [Micro for Effect Users](https://effect.website/docs/micro/effect-users/): Learn about the Micro module, a lightweight alternative to Effect for reducing bundle size while maintaining compatibility and functionality for TypeScript applications.
- [Getting Started with Micro](https://effect.website/docs/micro/new-users/): Learn how to get started with the Micro module, a lightweight alternative to Effect for reducing bundle size while maintaining essential functionality in TypeScript applications.
- [Logging](https://effect.website/docs/observability/logging/): Discover Effect's logging utilities for dynamic log levels, custom outputs, and fine-grained control over logs.
- [Supervisor](https://effect.website/docs/observability/supervisor/): Effect's Supervisor manages fiber lifecycles, enabling tracking, monitoring, and controlling fibers' behavior within an application.
- [Metrics in Effect](https://effect.website/docs/observability/metrics/): Effect Metrics provides powerful monitoring tools, including counters, gauges, histograms, summaries, and frequencies, to track your application's performance and behavior.
- [Command](https://effect.website/docs/platform/command/): Learn how to create, run, and manage commands with custom arguments, environment variables, and input/output handling in Effect.
- [Tracing in Effect](https://effect.website/docs/observability/tracing/): Explore tracing in distributed systems to track request lifecycles across services using spans and traces for debugging and performance optimization.
- [FileSystem](https://effect.website/docs/platform/file-system/): Explore file system operations for reading, writing, and managing files and directories in Effect.
- [Introduction to Effect Platform](https://effect.website/docs/platform/introduction/): Build cross-platform applications with unified abstractions for Node.js, Deno, Bun, and browsers using @effect/platform.
- [KeyValueStore](https://effect.website/docs/platform/key-value-store/): Manage key-value pairs with asynchronous, consistent storage, supporting in-memory, file system, and schema-based implementations.
- [Path](https://effect.website/docs/platform/path/): Perform file path operations such as joining, resolving, and normalizing across platforms.
- [PlatformLogger](https://effect.website/docs/platform/platformlogger/): Log messages to a file using the FileSystem APIs.
- [Runtime](https://effect.website/docs/platform/runtime/): Run your program with built-in error handling and logging.
- [Terminal](https://effect.website/docs/platform/terminal/): Interact with standard input and output to read user input and display messages on the terminal.
- [Default Services](https://effect.website/docs/requirements-management/default-services/): Learn about the default services in Effect, including Clock, Console, Random, ConfigProvider, and Tracer, and how they are automatically provided for your programs.
- [Layer Memoization](https://effect.website/docs/requirements-management/layer-memoization/): Learn how layer memoization optimizes performance in Effect by reusing layers and controlling their instantiation.
- [Managing Layers](https://effect.website/docs/requirements-management/layers/): Learn how to use layers in Effect to manage service dependencies and build efficient, clean dependency graphs for your applications.
- [Managing Services](https://effect.website/docs/requirements-management/services/): Learn how to manage reusable services in Effect, handle dependencies efficiently, and ensure clean, decoupled architecture in your applications.
- [Introduction](https://effect.website/docs/resource-management/introduction/): Common patterns for safe resource management
- [Scope](https://effect.website/docs/resource-management/scope/): Learn how Effect simplifies resource management with Scopes, ensuring efficient cleanup and safe resource handling in long-running applications.
- [Built-In Schedules](https://effect.website/docs/scheduling/built-in-schedules/): Explore built-in scheduling patterns in Effect for efficient timed repetitions and delays.
- [Cron](https://effect.website/docs/scheduling/cron/): Explore cron scheduling in Effect for executing actions at specific times and intervals.
- [Examples](https://effect.website/docs/scheduling/examples/): Explore practical examples for scheduling, retries, timeouts, and periodic task execution in Effect.
- [Introduction](https://effect.website/docs/scheduling/introduction/): Learn the fundamentals of scheduling in Effect, including composable recurrence patterns and handling retries and repetitions.
- [Repetition](https://effect.website/docs/scheduling/repetition/): Explore repetition in Effect for executing actions multiple times with control over retries, failures, and conditions.
- [Schedule Combinators](https://effect.website/docs/scheduling/schedule-combinators/): Learn how to combine and customize schedules in Effect to create complex recurrence patterns, including union, intersection, sequencing, and more.
- [Advanced Usage](https://effect.website/docs/schema/advanced-usage/): Learn advanced techniques for defining and extending data schemas, including recursive and mutually recursive types, optional fields, branded types, and schema transformations.
- [Schema to Arbitrary](https://effect.website/docs/schema/arbitrary/): Generate random test data that adheres to schema constraints using Arbitrary, with options for transformations, filters, and custom generation.
- [Schema Annotations](https://effect.website/docs/schema/annotations/): Learn how to enhance schemas with annotations for better customization, error handling, documentation, and concurrency control in your Effect-based applications.
- [Basic Usage](https://effect.website/docs/schema/basic-usage/): Learn to define and work with basic schemas, including primitives, literals, unions, and structs, for effective data validation and transformation.
- [Class APIs](https://effect.website/docs/schema/classes/): Learn to define and extend schemas using classes, incorporating validation, custom logic, and advanced features like equality checks and transformations.
- [Default Constructors](https://effect.website/docs/schema/default-constructors/): Create values that conform to schemas effortlessly using default constructors for structs, records, filters, and branded types, with options for validation, default values, and lazy evaluation.
- [Effect Data Types](https://effect.website/docs/schema/effect-data-types/): Transform and manage various data types with schemas for enhanced JSON serialization, including support for options, eithers, sets, maps, durations, and sensitive redacted data.
- [Schema to Equivalence](https://effect.website/docs/schema/equivalence/): Generate and customize equivalence checks for data structures based on schema definitions.
- [Error Formatters](https://effect.website/docs/schema/error-formatters/): Format and customize error messages during schema decoding and encoding using TreeFormatter or ArrayFormatter.
- [Error Messages](https://effect.website/docs/schema/error-messages/): Customize and enhance error messages for schema decoding with default, refined, and custom messages.
- [Filters](https://effect.website/docs/schema/filters/): Define custom validation logic with filters to enhance data validation beyond basic type checks.
- [Getting Started](https://effect.website/docs/schema/getting-started/): Learn how to define schemas, extract types, and handle decoding and encoding.
- [Introduction to Effect Schema](https://effect.website/docs/schema/introduction/): Introduction to `effect/Schema`, a module for defining, validating, and transforming data schemas.
- [Schema to JSON Schema](https://effect.website/docs/schema/json-schema/): Convert schema definitions into JSON Schema for data validation and interoperability.
- [Schema to Pretty Printer](https://effect.website/docs/schema/pretty/): Generate formatted string representations of values based on schemas.
- [Schema Projections](https://effect.website/docs/schema/projections/): Create new schemas by extracting and customizing the Type or Encoded components of existing schemas.
- [Schema to Standard Schema](https://effect.website/docs/schema/standard-schema/): Generate Standard Schema V1.
- [Sink Concurrency](https://effect.website/docs/sink/concurrency/): undefined
- [Schema Transformations](https://effect.website/docs/schema/transformations/): Transform and manipulate data with schema-based transformations, including type conversions, validations, and custom processing.
- [Creating Sinks](https://effect.website/docs/sink/creating/): Discover how to create and use various sinks for processing streams, including counting, summing, collecting, folding, and handling success or failure.
- [Introduction](https://effect.website/docs/sink/introduction/): Learn the role of Sink in stream processing, handling element consumption, error management, result production, and leftover elements.
- [Leftovers](https://effect.website/docs/sink/leftovers/): Learn how to handle unconsumed elements in streams, collecting or ignoring leftovers for efficient data processing.
- [Sink Operations](https://effect.website/docs/sink/operations/): Explore operations to transform, filter, and adapt sinks, enabling custom input-output handling and element filtering in stream processing.
- [Ref](https://effect.website/docs/state-management/ref/): Learn how to manage state in concurrent applications using Effect's Ref data type. Master mutable references for safe, controlled state updates across fibers.
- [SubscriptionRef](https://effect.website/docs/state-management/subscriptionref/): Learn how to manage shared state with SubscriptionRef in Effect, enabling multiple observers to subscribe to and react to state changes efficiently in concurrent environments.
- [SynchronizedRef](https://effect.website/docs/state-management/synchronizedref/): Master concurrent state management with SynchronizedRef in Effect, a mutable reference that supports atomic, effectful updates to shared state in concurrent environments.
- [Consuming Streams](https://effect.website/docs/stream/consuming-streams/): Learn techniques for consuming streams, including collecting elements, processing with callbacks, and using folds and sinks.
- [Creating Streams](https://effect.website/docs/stream/creating/): Learn various methods for creating Effect streams, from basic constructors to handling asynchronous data sources, pagination, and schedules.
- [Error Handling in Streams](https://effect.website/docs/stream/error-handling/): Learn how to handle errors in streams, ensuring robust recovery, retries, and graceful error management for reliable stream processing.
- [Introduction to Streams](https://effect.website/docs/stream/introduction/): Learn the fundamentals of streams, a powerful tool for emitting multiple values, handling errors, and working with finite or infinite sequences in your applications.
- [Operations](https://effect.website/docs/stream/operations/): Explore essential operations for manipulating and managing data in streams, including tapping, mapping, filtering, merging, and more, to effectively process and transform streaming data.
- [Resourceful Streams](https://effect.website/docs/stream/resourceful-streams/): Learn how to manage resources in streams with safe acquisition and release, finalization for cleanup tasks, and ensuring post-finalization actions for robust resource handling in streaming applications.
- [TestClock](https://effect.website/docs/testing/testclock/): Control time during testing with Effect's TestClock, simulating time passage, delays, and recurring effects without waiting for real time.
- [Equal](https://effect.website/docs/trait/equal/): Implement value-based equality checks for improved data integrity and predictable behavior in TypeScript.
- [Hash](https://effect.website/docs/trait/hash/): Optimize equality checks with efficient hashing for faster comparisons in collections like hash sets and maps.


## API

- [API List](https://tim-smart.github.io/effect-io-ai/): A succint list of all functions and methods in Effect.