yield-vault-guide

yield-vault-guide is a skill for Claude Code, Codex from nirholas/three.ws. It costs 54 tokens per session (1,306 once invoked), scanned A, original, Apache-2.0.

A guide to DeFi yield vaults, which automatically put deposited tokens into a strategy and reinvest rewards. It explains vault mechanics, auto-compounding, major protocols, fees, risk tiers, and performance evaluation.

In plain words
What is it for?
Use it to understand or evaluate Yearn and Beefy vaults, compare auto-compounding with manual farming, and review strategy returns, fees, audits, and supported chains.
Why use it?
It explains how automated reinvestment differs from manually claiming and redepositing rewards. This helps users compare the effort, costs, fees, and risks of vault strategies.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/nirholas/three.ws/yield-vault-guide
Any agent
npx skills add nirholas/three.ws --skill yield-vault-guide
Clone the repo
git clone --depth 1 https://github.com/nirholas/three.ws

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for yield-vault-guide

README.md
[![agentmods](https://agentmods.dev/badge/skills/nirholas/three.ws/yield-vault-guide.svg)](https://agentmods.dev/skills/nirholas/three.ws/yield-vault-guide)
Your own site
<a href="https://agentmods.dev/skills/nirholas/three.ws/yield-vault-guide"><img src="https://agentmods.dev/badge/skills/nirholas/three.ws/yield-vault-guide.svg" alt="Measured on agentmods" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,306 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00054 $0.01306
Opus 5 $0.00027 $0.00653
Sonnet 5 $0.00011 $0.00261
Haiku 4.5 $0.00005 $0.00131

Measured 2d ago against content hash c20348b2a4d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

yield-vault-guide scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

data/skills/defi/yield-vault-guide/SKILL.md · 158 lines

How it starts

The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Yield Vault Guide

Yield vaults automate DeFi strategies, auto-compounding rewards so you don't have to manually claim and reinvest.

How Vaults Work

1. You deposit tokens into a vault
2. Vault executes a strategy (e.g., farm + auto-compound)
3. Rewards are claimed and reinvested automatically
4. Your share of the vault grows over time
5. Withdraw anytime — receive original token + accumulated yield

Vault vs Manual Farming

Factor Vault Manual
Compounding Automatic You claim + reinvest
Gas costs Shared across users You pay each time
Optimization Professional strategies You manage
Effort Set and forget Daily/weekly maintenance
Fees Vault fees (2–10%) No protocol fees

Major Vault Protocols

Yearn V3

The original yield aggregator. Multi-strategy vaults that allocate across opportunities.

Feature Detail
Chains Ethereum, Arbitrum, Base, Polygon, Optimism
Strategies Multi-strategy per vault
Fees 10% performance fee
Audit Multiple audits, 3+ years live

How Yearn works:

  1. Deposit USDC into the USDC vault
  2. Yearn allocates across 3–5 strategies (lending, LP, farming)
  3. Strategies auto-compound
  4. Withdraw with accumulated yield

Beefy Finance

Cross-chain auto-compounder. Widest protocol coverage.

Feature Detail
Chains 20+ chains
Strategies Single-strategy per vault (focused)
Fees 4.5% performance fee + 0–0.1% deposit
Audit Multiple audits, 2+ years live

Beefy's approach:

  • Each vault targets one specific farm
  • Claims rewards → swaps to underlying → re-deposits
  • Simple and transparent

Convex / Aura

Specialized for Curve and Balancer pools:

  • Convex: Boost Curve LP rewards (CRV + CVX)
  • Aura: Boost Balancer LP rewards (BAL + AURA)

Evaluating Vaults

Key Metrics

Metric What to Check Good Sign
TVL Total deposited >$1M for established vaults
APY (net) After fees Competitive vs alternatives
Strategy What it does Understandable, tested strategy
Audit Security reviews Multiple audits, no past incidents
Age Time in production >6 months preferred

Read the full file on GitHub · 158 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 158 lines · 54 tokens per session scan A c20348b2a4d9

Subscribe to this mod's changes

yield-vault-guide is a skill published in the GitHub repository nirholas/three.ws (110 stars, last pushed today), licensed Apache-2.0. It adds 54 tokens to every session and 1,306 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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