sponsio

Blocks unsafe tool calls and enforces output quality for LLM agents.

469|28|Updated Apr 4, 2026
One-click install
npx skills add https://github.com/SponsioLabs/Sponsio --skill sponsio
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: sponsio
Source: https://github.com/SponsioLabs/Sponsio/tree/main/sponsio/skills/sponsio
Command: npx skills add https://github.com/SponsioLabs/Sponsio --skill sponsio

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires sponsio, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides deterministic contracts for LLM agents, blocking unsafe tool calls and enforcing output quality against declared rules.

Core Features & Use Cases

  • LLM Agent Safety: Blocks unsafe tool calls and logs violations, ensuring the integrity of LLM agent procedures.
  • Contract Enforcement: Enforces contracts in under 0.01 ms with zero LLM cost at runtime.
  • Full Lifecycle Management: Covers initial setup, contract authoring, observe-mode tuning, and flipping to enforce mode.
  • Use Case: For a developer working on an LLM-powered application, use this Skill to enforce contracts and guardrails for the LLM agent, preventing unsafe actions and ensuring output quality.

Quick Start

Use the sponsio skill to set up Sponsio in observe mode for the first time in a project by running: sponsio init --apply 'mode=observe'.

Frequently Asked Questions about sponsio

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

FAQPage Schema
How do I enforce deterministic contracts for LLM agent safety?

Deterministic contracts for LLM agent safety work by applying declared rules that block unsafe tool calls and validate output quality at runtime. This approach ensures agent procedures execute securely without relying on probabilistic LLM checks.

What is the best way to block unsafe tool calls in an LLM-powered application?

Blocking unsafe tool calls in an LLM-powered application is best achieved through deterministic contract enforcement. This mechanism intercepts and logs violations, preventing unsafe actions while ensuring output quality against your declared rules.

How do I set up contract enforcement and observe mode for an LLM agent?

Setting up contract enforcement and observe mode for an LLM agent involves initializing the project in observe mode to tune rules and author contracts, then flipping to enforce mode. This lifecycle management ensures safe deployment of guardrails for your application.

Do I need Python or TypeScript to apply runtime safety contracts for LLM agents?

Yes, you need either Python or TypeScript to apply runtime safety contracts for LLM agents. These languages are required alongside the Sponsio dependency to execute contract enforcement and observe agent behavior effectively.

Does deterministic contract enforcement add latency or LLM cost at runtime?

Deterministic contract enforcement adds negligible latency and zero LLM cost at runtime. Contracts are evaluated in under 0.01 ms, ensuring output quality and runtime safety without impacting application performance.

Why does my LLM agent still execute unsafe actions despite prompt instructions?

Your LLM agent may execute unsafe actions because prompt instructions are probabilistic and lack runtime safety. Applying deterministic contracts blocks unsafe tool calls definitively by enforcing strict validation rules against declared behaviors.