Description

This PR implements comprehensive documentation for the experimental config_loader system, providing complete guidance for dictionary-based agent configuration loading while addressing significant documentation inconsistencies.

Major Documentation Addition:

• Complete experimental config_loader documentation: Added comprehensive documentation section under User Guide > Experimental
• Six detailed guides: Overview, Agent Config, Tool Config, Swarm Config, Graph Config, and Structured Output
• Accurate implementation coverage: All documentation verified against actual implementation

Documentation Structure Added:

• docs/experimental/config-loader/overview.md - System overview and supported formats
• docs/experimental/config-loader/agent-config.md - AgentConfigLoader comprehensive guide
• docs/experimental/config-loader/tool-config.md - ToolConfigLoader with multi-agent patterns
• docs/experimental/config-loader/swarm-config.md - SwarmConfigLoader documentation
• docs/experimental/config-loader/graph-config.md - GraphConfigLoader documentation
• docs/experimental/config-loader/structured-output.md - Schema configuration guide

Key Content Areas:

• Dictionary-based configuration: Comprehensive examples and patterns for programmatic configuration
• Multi-agent tool patterns: Complete Agent-as-Tool, Swarm-as-Tool, and Graph-as-Tool documentation
• Configuration management: Caching, serialization, and validation guidance
• Advanced features: Structured output, schema registry, template substitution
• Best practices: Configuration patterns, error handling, and migration guidance

Navigation Integration:

• Experimental section: Added under User Guide after Deploy section
• Proper categorization: Clear experimental feature labeling throughout
• Cross-references: Links to related documentation and main constructor alternatives

Type of Change

• New content addition
• Content update/revision
• Structure/organization improvement

Motivation and Context

Issue [FEATURE] Load Agentic Configurations from a Dictionary #606 requested dictionary-based configuration loading for agents and tools. The implementation was completed but required comprehensive documentation.

This PR provides complete, accurate documentation enabling developers to effectively use the experimental config_loader system.

Areas Affected

New Documentation Sections:

• Experimental > Configuration Loaders (complete new section)
• User Guide navigation (experimental section integration)

Specific Files:

• docs/experimental/config-loader/overview.md - System overview and capabilities
• docs/experimental/config-loader/agent-config.md - Agent configuration patterns
• docs/experimental/config-loader/tool-config.md - Tool loading and multi-agent patterns
• docs/experimental/config-loader/swarm-config.md - Swarm configuration management
• docs/experimental/config-loader/graph-config.md - Graph workflow configuration
• docs/experimental/config-loader/structured-output.md - Schema and validation

Navigation Updates:

• mkdocs.yml - Added experimental section under User Guide
• Cross-reference integration throughout documentation

Screenshots

Checklist

• I have read the CONTRIBUTING document
• My changes follow the project's documentation style
• I have tested the documentation locally using mkdocs serve
• Links in the documentation are valid and working
• Images/diagrams are properly sized and formatted
• All new and existing tests pass

Additional Notes

Implementation Verification:

• All examples tested against actual config_loader implementation
• Public methods documented match exported interfaces
• Clear experimental feature warnings throughout
• Comprehensive coverage of all config loader capabilities

Developer Experience:

• Documentation written from developer implementation perspective
• Emphasis on programmatic configuration management patterns
• Clear migration paths from direct instantiation to config-driven approaches
• Comprehensive error handling and troubleshooting guidance

Content Quality:

• 6 comprehensive guides
• Code examples verified against implementation
• Complete API coverage for all four config loader classes
• Advanced patterns including multi-agent tool configurations

This establishes the config_loader system as a fully documented experimental feature, enabling developers to leverage dictionary-based agent configuration for dynamic, programmatic agent management.

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.