core/

Package a2a implements the server side of the Agent2Agent protocol v1.0 task exchange over its JSON-RPC binding: SendMessage, SendStreamingMessage, GetTask, ListTasks, CancelTask, SubscribeToTask, the four push-notification-config operations, and GetExtendedAgentCard.

Package acp implements the server (agent) side of the Agent Client Protocol v1 (agentclientprotocol.com): a session-based, stdio JSON-RPC 2.0 protocol that lets editors and agent harnesses drive an agent.

Package backoff holds the retry-delay policies shared by the outbox relay, the queue and webhook batteries, and the log webhook sink.

Package config provides a first-class configuration loader that binds environment variables, config files, and secret sources into typed Go structs with validation.

Package dotenv parses .env files into a map and (optionally) applies them to the process environment.

Package fanout carries real-time messages between replicas.

Package featureflag is a minimal feature-flag primitive for GoFastr apps.

Package fuzzy holds small string-similarity helpers shared across the codebase.

Package handler is part of the GoFastr framework.

Package i18n is a small internationalization primitive for GoFastr apps: locale negotiation from `Accept-Language`, JSON-backed message catalogs with `{{placeholder}}` interpolation, and CLDR-style plural categories (zero / one / two / few / many / other) with sensible English defaults and a hook for per-locale custom rules.

Package jcs implements RFC 8785 (JSON Canonicalization Scheme) using only the Go standard library.

Package markdown is a small, dependency-free Markdown renderer.

check-csp:ignore-file

Package middleware is part of the GoFastr framework.

Package migrate is a versioned SQL migration runner with optional per-group migration streams.

Package moduleproto implements the wire protocol between the GoFastr host process and an out-of-process third-party module, as specified by issue #37 (design §4).

Package netguard holds the one definition of "this address is internal" that every outbound-fetch surface checks against.

Package openapi is part of the GoFastr framework.

Package query is part of the GoFastr framework.

Package render is part of the GoFastr framework.

Package router is part of the GoFastr framework.

Package schema is part of the GoFastr framework.

Package static is part of the GoFastr framework.

Package stream is part of the GoFastr framework.

Package textsafe holds the one predicate for the characters that forge, reorder, or hide text: the C1 control block and the zero-width / bidi "invisible" set.

Package upload is part of the GoFastr framework.

Package webbotauth verifies inbound Web Bot Auth requests: RFC 9421 HTTP Message Signatures under the profile of draft-meunier-webbotauth-httpsig-protocol-02 (18 August 2026), the IETF Web Bot Auth working-group draft.