skills.rest
lambdasolver2
lambdasolver2COMMUNITY
Explore all skills by this author →
GitHub

effect-ai-tool

Define type-safe AI tools and toolkits using Effect AI Tool and Toolkit APIs.

1|Updated Aug 24, 2026
Search Tags:#typescript#llm#ai tools#schema validation#function calling#toolkit#effect
One-click install
npx skills add https://github.com/lambdasolver2/opencode-effect-harness --skill effect-ai-tool-lambdasolver2
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: effect-ai-tool
Source: https://github.com/lambdasolver2/opencode-effect-harness/tree/main/packages/module-typescript/assets/skills/effect-ai-tool
Command: npx skills add https://github.com/lambdasolver2/opencode-effect-harness --skill effect-ai-tool-lambdasolver2

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires effect, @effect/ai-openai.

What problem does it solve? Building LLM integrations with tool calling requires type-safe tool definitions, validated parameters, structured failure handling, and composable toolkits, which is error-prone when done ad hoc with raw JSON schemas. ## Core Features & Use Cases - User-Defined Tools: Create tools with Tool.make using Schema.Struct parameters, success/failure schemas, failureMode strategies, and service dependencies. - Toolkit Composition: Combine tools with Toolkit.make, implement handlers via toLayer or toHandlers, and execute them through toolkit.handle streams with preliminary progress results. - Provider-Defined & Dynamic Tools: Integrate provider-native capabilities like OpenAI WebSearch and FileSearch via Tool.providerDefined and OpenAiTool, plus runtime-discovered tools via Tool.dynamic. - Use Case: Build a coding agent that exposes read-file and query-database tools to an LLM, with tagged-error failures, approval flows for destructive operations, and dependency-injected handlers. ## Quick Start Ask the AI to define an Effect AI tool with Tool.make that has typed parameters, a success schema, and a handler implemented through Toolkit.toLayer.

Frequently Asked Questions about effect-ai-tool

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I define a tool with Effect AI Tool.make?▼

Call Tool.make with a name string and a config object containing description, parameters as Schema.Struct, success and failure schemas, and optional failureMode. Extract types with Tool.Parameters, Tool.Success, and Tool.Failure.

How do I implement tool handlers in Effect AI?▼

Use Toolkit.make to compose tools, then call toLayer with an object mapping tool names to handler functions returning Effects. Alternatively use toHandlers to get a Context instead of a Layer for direct provision.

What is the difference between Tool.make, Tool.dynamic, and Tool.providerDefined?▼

Tool.make defines user tools with typed Effect schemas. Tool.dynamic handles runtime-discovered tools where raw JSON Schema params are typed as unknown. Tool.providerDefined models provider-native capabilities like OpenAI WebSearch.

Does Effect AI support tool approval flows?▼

Yes, Tool.make and Tool.dynamic accept needsApproval. When set, automatic resolution emits a tool-approval-request instead of executing, and the caller responds with Prompt.toolApprovalResponsePart to approve or deny.

How do tool failures work with failureMode in Effect AI?▼

The failureMode option controls failure strategy: 'error' sends failures to the Effect error channel, while 'return' captures failures as tool results. Declare all tagged errors in the failure schema for type safety.

Related Skills

Explore More Software Engineering Skills→
lgwanailgwanai
4

effect

Creates .opencode/references/effect-smol compliant Tyepescript services and workflows with ASP.NET Core MVC controllers and EF Core repositories.

Community
Intermediate
MyPrototypeWhatMyPrototypeWhat
28

context-chef-middleware

Integrate @context-chef/ai-sdk-middleware into Vercel AI SDK v6+ projects.

Community
Intermediate
front-depictionfront-depiction

effect-ai-prompt

Constructs typed prompts and manages histories with the @effect/ai/Prompt API for JavaScript/TypeScript projects.

Community
Advanced
SalmanO7SalmanO7

hosted-mcp-server

Configure hosted MCP server connections for the OpenAI Agents SDK.

Community
Advanced