core/cli

Add streaming API to pkg/io and optimize agentic context gathering (#313 )

* feat(io): add streaming API to Medium interface and optimize agentic context

- Added ReadStream and WriteStream to io.Medium interface.
- Implemented streaming methods in local and mock mediums.
- Updated pkg/agentic/context.go to use streaming I/O with LimitReader.
- Added 5000-byte truncation limit for all AI context file reads to reduce memory usage.
- Documented when to use streaming vs full-file APIs in io.Medium.

* feat(io): optimize streaming API and fix PR feedback

- Fixed resource leak in agentic context by using defer for closing file streams.
- Improved truncation logic in agentic context to handle multibyte characters correctly by checking byte length before string conversion.
- Added comprehensive documentation to ReadStream and WriteStream in local medium.
- Added unit tests for ReadStream and WriteStream in local medium.
- Applied formatting and fixed auto-merge CI configuration.

* feat(io): add streaming API and fix CI failures (syntax fix)

- Introduced ReadStream and WriteStream to io.Medium interface.
- Implemented streaming methods in local and mock mediums.
- Optimized agentic context with streaming reads and truncation logic.
- Fixed syntax error in local client tests by overwriting the file.
- Fixed auto-merge CI by adding checkout and repository context.
- Applied formatting fixes.

2026-02-05 11:00:49 +00:00

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CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

Core is a Web3 Framework written in Go using Wails v3 to replace Electron for desktop applications. It provides a dependency injection framework for managing services with lifecycle support.

Build & Development Commands

This project uses Task for automation. Key commands:

# Run all tests
task test

# Generate test coverage
task cov
task cov-view          # Opens coverage HTML report

# GUI application (Wails)
task gui:dev           # Development mode with hot-reload
task gui:build         # Production build

# CLI application
task cli:build         # Build CLI
task cli:run           # Build and run CLI

# Code review
task review            # Submit for CodeRabbit review
task check             # Run mod tidy + tests + review

Run a single test: go test -run TestName ./...

Architecture

Core Framework (`core.go`, `interfaces.go`)

The Core struct is the central application container managing:

Services: Named service registry with type-safe retrieval via ServiceFor[T]() and MustServiceFor[T]()
Actions/IPC: Message-passing system where services communicate via ACTION(msg Message) and register handlers via RegisterAction()
Lifecycle: Services implementing Startable (OnStartup) and/or Stoppable (OnShutdown) interfaces are automatically called during app lifecycle

Creating a Core instance:

core, err := core.New(
    core.WithService(myServiceFactory),
    core.WithAssets(assets),
    core.WithServiceLock(),  // Prevents late service registration
)

Service Registration Pattern

Services are registered via factory functions that receive the Core instance:

func NewMyService(c *core.Core) (any, error) {
    return &MyService{runtime: core.NewServiceRuntime(c, opts)}, nil
}

core.New(core.WithService(NewMyService))

WithService: Auto-discovers service name from package path, registers IPC handler if service has HandleIPCEvents method
WithName: Explicitly names a service

Runtime (`runtime_pkg.go`)

Runtime is the Wails service wrapper that bootstraps the Core and its services. Use NewWithFactories() for custom service registration or NewRuntime() for basic setup.

ServiceRuntime Generic Helper (`runtime.go`)

Embed ServiceRuntime[T] in services to get access to Core and typed options:

type MyService struct {
    *core.ServiceRuntime[MyServiceOptions]
}

Error Handling (`e.go`)

Use the E() helper for contextual errors:

return core.E("service.Method", "what failed", underlyingErr)

Test Naming Convention

Tests use _Good, _Bad, _Ugly suffix pattern:

_Good: Happy path tests
_Bad: Expected error conditions
_Ugly: Panic/edge cases

Go Workspace

Uses Go 1.25 workspaces. The workspace includes:

Root module (Core framework)
cmd/core-gui (Wails GUI application)
cmd/examples/* (Example applications)

After adding modules: go work sync

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