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What is the Cesto Skill?

The Cesto Skill is an open-source AI agent skill that lets you interact with the Cesto platform through natural conversation. It works with any AI coding agent that supports skills: Claude Code, Cursor, Windsurf, and more. Create basket posts on Cesto Labs, simulate portfolio performance against the S&P 500, browse baskets, and analyze token data, all without leaving your editor or terminal.

Browse & Analyze

Explore all baskets, view detailed breakdowns, check token performance, and compare historical returns. No login required.

Create Baskets

Design and publish baskets to Cesto Labs with custom token allocations. Preview everything before it goes live.

Simulate Portfolios

Backtest any custom token allocation against the S&P 500 benchmark with daily historical data.

Wallet Authentication

One-click magic-link login: connect your Solana wallet in the browser and you’re in. Tokens refresh silently.

Installation

The skill lives at cesto-co/cesto-skills on GitHub. Install it into any agent with a single command using the Skills CLI — there are no config files to edit by hand.

Add to Claude Code

Paste this into your terminal and the Cesto Toolkit is ready:
The same one line works across Claude Code, Cursor, Codex, Windsurf, and 60+ other agents. A few common variants:
The skill activates automatically when you mention Cesto, baskets, portfolio simulation, or related terms in conversation.

Authentication

The skill uses a magic-link flow: no manual token pasting required.
  1. The skill detects that you’re not logged in
  2. Your browser opens to a wallet connection page
  3. Connect your Solana wallet and sign a message
  4. You’re authenticated. Future sessions refresh silently
Credentials are stored securely at ~/.cesto/auth.json with restricted file permissions. Tokens are never displayed in agent output.
Only basket creation and portfolio simulation require authentication. All browsing and analytics features work without logging in.

What you can do

Browse all baskets

See every basket on Cesto with names, categories, risk levels, and performance stats.

View basket details

Dive into any basket: strategy, token breakdown, allocation percentages, and historical performance.

Analyze basket tokens

Get current market data for every token in a basket: prices, market caps, volume, and recent performance.

View performance history

See how a basket has performed against the S&P 500 over time.

Cross-basket analytics

Compare performance across all baskets to find top and bottom performers.

Create a basket on Cesto Labs

Design and publish your own basket with custom token allocations.
You’ll preview the title, description, and allocation table before anything is published.

Simulate a portfolio

Backtest a custom allocation against the S&P 500 (both start at $1,000).
Returns daily time series data with total return, comparison to benchmark, and key moments.

Browse Cesto Labs

Explore community baskets, sort by new, trending, or top performers, and check the community leaderboard.

Post and vote on Labs

Publish your own community basket, manage your posts, and back the ones you believe in.