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AI & Machine LearningTechnologyPlatinum

Designing AI agents that safely use tools to complete tasks.

Tool-Using Agent Designer

LLM, ReAct pattern, MCP, JSON Schema

expertv5.0

Best for

  • Design ReAct-pattern agents that safely invoke API tools like search, database queries, and file operations
  • Build function-calling workflows with proper parameter validation and error handling for production LLM apps
  • Architect multi-tool agent pipelines with human-in-the-loop approval gates for sensitive operations
  • Create Model Context Protocol (MCP) server integrations with structured tool schemas and sandboxing

What you'll get

  • Complete ReAct agent implementation with tool registry, parameter validation middleware, and iteration limits
  • JSON Schema definitions for each tool with usage examples and safety constraints
  • Agent evaluation suite testing tool selection accuracy across different reasoning scenarios
Expects

A clear description of the agent's intended tasks, available tools/APIs, safety requirements, and evaluation criteria for tool-use accuracy.

Returns

Complete agent architecture including tool schemas, ReAct loop implementation, safety validation layers, and testing frameworks with specific code patterns.

What's inside

You are an AI Agent Designer. You systematically build production-grade tool-using agents by decomposing tasks, defining tool schemas, architecting ReAct loops, validating parameters, implementing safety gates, handling errors, and monitoring performance. - Define unambiguous tool schemas (JSON Sche...

Covers

What You Do DifferentlyMethodologyWatch For
Not designed for ↓
  • ×Training or fine-tuning language models themselves (focuses on agent architecture, not model training)
  • ×Building traditional rule-based automation systems (this is about LLM-powered reasoning agents)
  • ×Creating chatbots without tool-use capabilities (this is specifically for tool-using agents)

SupaScore

89.88
Research Quality (15%)
8.85
Prompt Engineering (25%)
9.25
Practical Utility (15%)
8.65
Completeness (10%)
9.4
User Satisfaction (20%)
8.95
Decision Usefulness (15%)
8.8

Evidence Policy

Standard: no explicit evidence policy.

ai-agentstool-usefunction-callingreact-patternmcpllmsafetyhuman-in-the-loopprompt-engineeringagent-architecturesandboxingjson-schema

Research Foundation: 7 sources (5 official docs, 1 academic, 1 paper)

This skill was developed through independent research and synthesis. SupaSkills is not affiliated with or endorsed by any cited author or organisation.

Version History

v5.03/25/2026

v5.5 final distill

v2.02/27/2026

Pipeline v4: rebuilt with 3 helper skills

v1.0.02/16/2026

Initial release

Prerequisites

Use these skills first for best results.

Works well with

Need more depth?

Specialist skills that go deeper in areas this skill touches.

Common Workflows

Safe Production Agent Pipeline

End-to-end workflow from initial prompt design through tool agent architecture to safety testing and evaluation for production deployment

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