/* LEEWAY HEADER — DO NOT REMOVE

REGION: AI.TOOLS TAG: AI.TOOLS.CUSTOM_TOOL_CREATION

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5WH: WHAT = custom tool creation skill for Leeway-compliant AI systems WHY = Provides capabilities for tool-integration within the AIskills ecosystem WHO = Leeway Industries (By Leonard Jerome Lee) WHERE = skills/tool-integration/custom-tool-creation/SKILL.md WHEN = 2026 HOW = Leeway-governed skill.md definition with structured capabilities and tags

AGENTS: ASSESS AUDIT

ASSIGNED_SACRED_AGENTS: L6_Execution: Azr-Coordinator, L2_Ingestion: Aria.ts

LICENSE: MIT */

SOVEREIGN ALIGNMENT: This skill is strictly executed by L6_Execution: Azr-Coordinator, L2_Ingestion: Aria.ts. No unassigned Clones may natively execute this without Hive Mind routing.

Custom Tool Integration

Expert in: Creating, integrating, and managing custom tools and APIs for agents to use autonomously.

Capabilities

• Design tool interfaces and schemas
• Implement function calling and tool binding
• Create REST API wrappers as tools
• Handle tool versioning and deprecation
• Implement tool documentation and discovery
• Create mock tools for testing
• Handle tool errors and timeouts gracefully
• Build tool composition and chaining strategies

Use this skill when:

• Extending agents with custom capabilities
• Integrating external APIs and services
• Building domain-specific tools
• Creating tool ecosystems for agent systems
• Implementing safety constraints on tool use
• Building tool testing and validation systems
• Managing tool dependencies

Key techniques

• JSON Schema for tool definitions
• OpenAPI/REST tool integration
• Function calling patterns
• Tool composition and piping
• Tool versioning and evolution
• Safety guardrails for tool use
• Tool caching and optimization
• Mock tools and simulation

Tags

tools integration api function-calling tool-use composability