| name | skyll |
| description | Search and retrieve agent skills at runtime. This skill should be used when the agent needs to find specialized capabilities, workflows, or domain knowledge to accomplish a task. Skyll aggregates skills from skills.sh and returns full SKILL.md content ready for context injection. |
| license | Apache-2.0 |
Skyll - Agent Skill Discovery
Skyll enables agents to dynamically discover and retrieve skills at runtime. Instead of having all skills pre-loaded, agents can search for relevant skills on-demand and inject them into context.
When to Use This Skill
Use Skyll when:
- The current task requires specialized knowledge or workflows not in context
- Looking for best practices for a specific framework, library, or domain
- Needing procedural knowledge for complex multi-step tasks
- Wanting to enhance capabilities with community-contributed skills
Quick Usage
Option 1: Python Client (Recommended)
from skyll import Skyll
async with Skyll() as client:
skills = await client.search("react performance optimization", limit=3)
for skill in skills:
print(f"Skill: {skill.title}")
print(f"Score: {skill.relevance_score}")
print(skill.content)
Option 2: REST API
Search for skills:
curl "https://api.skyll.app/search?q=react+performance&limit=3"
Get a specific skill:
curl "https://api.skyll.app/skills/anthropics/skills/skill-creator"
Response Format
The API returns ranked skills with relevance scores (0-100):
{
"query": "react performance",
"count": 3,
"skills": [
{
"id": "react-best-practices",
"title": "React Best Practices",
"description": "Performance optimization for React and Next.js",
"source": "vercel-labs/agent-skills",
"relevance_score": 85.5,
"install_count": 82800,
"content": "# React Best Practices\n\n## Performance\n..."
}
]
}
Key Fields
| Field | Description |
|---|
id | Skill identifier |
title | Human-readable title |
description | What the skill does |
source | GitHub repository (owner/repo) |
relevance_score | 0-100 match score |
install_count | Popularity from skills.sh |
content | Full SKILL.md markdown content |
references | Additional reference files (if requested) |
Search Parameters
| Parameter | Default | Description |
|---|
q / query | required | Search query |
limit | 10 | Max results (1-50) |
include_content | true | Fetch full SKILL.md content |
include_references | false | Include reference files |
Example Workflow
When an agent needs to build a React Native app but lacks mobile expertise:
-
Search for relevant skills:
skills = await client.search("react native best practices", limit=2)
-
Inject top skill into context:
context = skills[0].content
-
Use the skill's knowledge to complete the task
API Endpoints
| Endpoint | Description |
|---|
GET /search?q={query} | Search skills |
POST /search | Search with JSON body |
GET /skills/{source}/{skill_id} | Get specific skill |
GET /health | Health check |
GET /docs | Interactive API documentation |
Installation
For Python agents:
pip install skyll
For other languages, use the REST API directly at https://api.skyll.app.
Links
