A comprehensive Go development persona that enforces zero global state, explicit error handling, and strict testability for production-grade web applications.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install go-web-expert
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install go-web-expert using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Go Web Expert?
The Go Web Expert skill is designed for developers who need to build robust, scalable, and maintainable web applications using the Go programming language. It acts as a technical guardian, ensuring that every line of code adheres to five non-negotiable rules: Zero Global State, Explicit Error Handling, Validation First, Testability, and Documentation. By integrating this into your workflow through Openclaw Skills, you ensure that your handlers, services, and data layers are consistently professional and ready for the rigors of a production environment.
This skill eliminates common pitfalls such as package-level mutable state and ignored errors. It shifts the focus toward explicit dependency injection and boundary-level validation, which significantly reduces the complexity of downstream business logic. Whether you are building a microservice or a monolithic API, this Openclaw Skills persona provides the architectural scaffolding necessary for long-term project health.
Go Web Expert Use Cases
- Building high-concurrency web APIs where global state must be avoided to prevent race conditions.
- Standardizing error handling and wrapping across a large Go codebase to improve observability.
- Implementing strict request validation at the HTTP boundary using go-playground/validator.
- Automating the creation of table-driven tests for HTTP handlers using the httptest package.
- Ensuring all exported Go symbols are properly documented for team collaboration and Go doc compatibility.
How Go Web Expert Works
- Dependency Injection Setup: The skill ensures all handlers are methods on a server struct, requiring a constructor to wire up dependencies like databases and loggers.
- Request Decoding and Validation: Before processing logic, the skill forces decoding into tagged structs and running validation, returning 400/422 status codes on failure.
- Contextual Error Wrapping: It audits code to ensure no errors are ignored and that all returned errors are wrapped using the %w verb for stack traceability.
- Test Implementation: The skill guides the creation of _test.go files that use httptest to simulate real HTTP traffic through the ServeHTTP method.
- Documentation Audit: Every exported identifier is checked for a doc comment that begins with the name of the identifier as per Go standards.
Go Web Expert Setup
To use this Go web persona within your development environment, ensure you have the Openclaw Skills framework configured and the following Go dependencies installed:
# Install the validator package
go get github.com/go-playground/validator/v10
# Ensure your project is initialized with Go modules
go mod init your-project-name
Refer to the internal references/validation.md and references/testing-handlers.md files provided within the skill for specific implementation patterns.
Go Web Expert Data Schema & Taxonomy
The skill organizes its architectural requirements and data structures based on the following taxonomy:
| Component | Organization Method | Requirement |
|---|---|---|
| Server Struct | Dependency Holder | Must contain all mutable state (DB, Logger) |
| Request Structs | Tagged JSON | Must include validate tags for boundary checks |
| Error Handling | Structured AppError | Uses a custom struct for consistent JSON error responses |
| Test Files | Table-Driven | Named filename_test.go using httptest.NewRecorder |
| Exported API | Go Doc Comments | Must start with the identifier name and include summaries |
Go Web Expert Advanced Features
- Interface-based mocking: Encourages defining narrow interfaces at the consumer level to facilitate seamless unit testing.
- Custom Validator Integration: Supports advanced validation logic including cross-field and nested struct validation.
- Middleware Testing: Specific workflows for testing authentication and logging middleware chains through Openclaw Skills.
- Self-Review Checklist: A built-in hard-gate system to verify code quality before a handler is considered complete.
SKILL.md
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