Add jsonschema-go module summary spec

[Copilot]

Creates persistent documentation for github.com/google/jsonschema-go module based on codebase analysis and upstream research.

Created

• specs/mods/jsonschema-go.md - Comprehensive module summary (326 lines)

Content Structure

Module Overview

• Google's official JSON Schema library (v0.3.0)
• Zero dependencies, full Draft 2020-12 support
• Used for MCP tool output schema generation

Current Usage

• pkg/cli/mcp_schema.go - Generic GenerateOutputSchema[T]() helper
• Leverages jsonschema.ForType() with Go reflection
• Struct tags drive schema generation (json:, jsonschema:)

API Patterns

type ToolOutput struct {
    Name string `json:"name" jsonschema:"description=Field description"`
    Optional *int `json:"opt,omitempty" jsonschema:"description=Optional field"`
}

schema, err := GenerateOutputSchema[ToolOutput]()

Improvement Opportunities

• Add validation usage (currently only generates schemas)
• Leverage advanced constraints (min/max, patterns, enums)
• Monitor v0.4.0 for anticipated type system improvements

References

• Upstream: https://github.com/google/jsonschema-go
• Spec: JSON Schema Draft 2020-12

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[plan] Create module summary spec for google/jsonschema-go</issue_title>
<issue_description>## Objective

Create persistent documentation in specs/mods/jsonschema-go.md based on the Go Fan report.

Context

The Go Fan report from discussion #6818 contains valuable information about the module that should be preserved for future reference. This spec file serves as persistent documentation for developers.

Content Structure

The spec should include:

1. Module Overview - Purpose, maintainers, key characteristics
2. Current Usage - How gh-aw uses the library
3. Recent Updates - v0.4.0 features and bug fixes
4. API Patterns - Recommended usage patterns
5. Best Practices - Schema generation guidelines
6. Future Opportunities - Features to watch upstream
7. References - Links to repository, issues, documentation

Files to Create

• specs/mods/jsonschema-go.md - Module summary documentation

Approach

1. Extract key information from discussion [go-fan] Go Module Review: google/jsonschema-go #6818 Go Fan report
2. Format as markdown specification document
3. Focus on practical guidance for developers
4. Include code examples and usage patterns
5. Document upgrade rationale and benefits

Acceptance Criteria

• File created in specs/mods/jsonschema-go.md
• Contains module overview and current usage
• Documents v0.4.0 features and benefits
• Includes API patterns and best practices
• References upstream repository and issues
• Properly formatted markdown
  Related to [plan] Upgrade and enhance google/jsonschema-go integration #6830

AI generated by Plan Command for discussion #6818

Comments on the Issue (you are @copilot in this section)

• Fixes [plan] Create module summary spec for google/jsonschema-go #6835

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