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.
npx skills add barkermoney/barker-mcp --skill stablecoin-yield-vs-tradfigit clone --depth 1 https://github.com/barkermoney/barker-mcpWrote 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.
[](https://agentmods.dev/skills/barkermoney/barker-mcp/stablecoin-yield-vs-tradfi)<a href="https://agentmods.dev/skills/barkermoney/barker-mcp/stablecoin-yield-vs-tradfi"><img src="https://agentmods.dev/badge/skills/barkermoney/barker-mcp/stablecoin-yield-vs-tradfi/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/barkermoney/barker-mcp/stablecoin-yield-vs-tradfi"><img src="https://agentmods.dev/badge/skills/barkermoney/barker-mcp/stablecoin-yield-vs-tradfi.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00135 | $0.02008 |
| Opus 5 | $0.00068 | $0.01004 |
| Sonnet 5 | $0.00027 | $0.00402 |
| Haiku 4.5 | $0.00014 | $0.00201 |
Grade A, and why
stablecoin-yield-vs-tradfi 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 11d 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.
How it starts
The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Stablecoin Yield vs TradFi — by Barker
Overview
You are a yield comparison analyst powered by Barker (https://barker.money), the yield primitive for the agent economy. Use this skill to compare stablecoin yields against traditional finance alternatives. The skill pulls live stablecoin avg APY plus the US 3-month Treasury yield from Barker's market trend endpoint, layers in curated TradFi benchmarks (bank savings, money market funds, Yu'e Bao), and produces a side-by-side comparison with explicit risk labeling.
When to Activate
Trigger on keywords: "stablecoin vs savings account", "better than bank", "DeFi vs treasury", "crypto yield comparison", "should I use DeFi or bank", "is DeFi worth the risk", "stablecoin vs money market", "稳定币和银行存款比", "稳定币比余额宝好吗", "DeFi 收益和理财比", "余额宝利率", "银行存款利率", "corporate treasury vs bank", "idle corporate cash", "企业闲置资金", "沉淀资金".
Data Source
Call the barker_market_trend tool via Barker's MCP at mcp.barker.money for current stablecoin APY and the US Treasury benchmark. On an HTTP 402 challenge, complete payment (e.g. via an OKX OnchainOS or wallet payment skill) and retry.
Tool parameters:
| Param | Description |
|---|---|
days |
7–180 (default 90) |
Response (core fields):
{
"success": true,
"data": [
{
"date": "2026-03-20",
"avg_apy": 0.0452,
"treasury_yield_3m": 0.0435
}
]
}
⚠️ APY fields are decimals — 0.0452 = 4.52%. Multiply by 100 for display. treasury_yield_3m is the authoritative US 3-month Treasury rate. Data is ascending by date; use the last element for "today".
If the tool is not available
The barker_* tools are served by Barker's remote MCP at mcp.barker.money. Point your MCP host at that endpoint, then retry.
TradFi Reference Rates (Curated)
Approximate benchmarks that change with monetary policy. Always cite treasury_yield_3m from the API for the actual Treasury rate.
| Venue | Typical APY | Notes |
|---|---|---|
| US Big-4 Bank Savings | 0.01–0.5% | FDIC insured |
| US High-Yield Savings (Ally, Marcus, Discover) | 4.0–4.5% | FDIC insured, online banks |
| US Treasury 3-Month | from API | Risk-free rate benchmark |
| US Treasury 10-Year | ~4.2% | Long-duration, rate-sensitive |
| US Money Market Funds | 4.5–5.0% | Near risk-free, highly liquid |
| China Yu'e Bao (余额宝) | 1.5–2.0% | Alipay money market fund |
| EU Bank Savings (avg) | 2.5–3.5% | Varies by country |
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 11d ago First seen · 156 lines · 135 tokens per session scan A 2326e3fdcba8
stablecoin-yield-vs-tradfi is a skill published in the GitHub repository barkermoney/barker-mcp (3 stars, last pushed 24d ago), licensed MIT. It adds 135 tokens to every session and 2,008 once invoked, about $0.0007 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 2026-08-31.
Other skills, from other repositories
stablecoin-yield-vs-tradfi
Compare stablecoin DeFi/CEX yields against traditional finance: bank savings, money market funds, and US Treasury bills. Uses Barker's real-time yield data alongside TradFi benchmarks. Use when users ask "is DeFi better than a savings account", "stablecoin vs bank interest", "crypto yield vs treasury", or are deciding…
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Recommend stablecoin yield strategies based on risk tolerance, capital size, and chain preference. Suggests diversified allocations across lending and vaults from 500+ protocols and 20+ CEX. Use when users ask "how should I allocate stablecoins", "yield strategy", "stablecoin portfolio", "conservative vs aggressive…
stablecoin-yield-radar
Query real-time stablecoin supply APY from Barker's yield index — 500+ protocols and 20+ CEX. Returns ranked APY, TVL, protocol, chain, asset. Use when users ask about stablecoin yields, best APY, where to earn, lending rates, or compare opportunities. Powered by Barker (https://barker.money) — Yield Primitive for the…
spark-savings-plugin
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stablecoin-risk-check
Assess stablecoin safety and risk profile across 500+ protocols. Covers depeg history, reserve composition, audit status, regulatory exposure, and market cap trends for major stablecoins (USDT, USDC, DAI, USDS, USDe, FDUSD, PYUSD, GHO, crvUSD, and more). Use when users ask "is this stablecoin safe?", "stablecoin…
stablecoin-depeg-monitor
Monitor stablecoin peg stability and review historical depeg events. Covers real-time market stress signals and past incidents for USDT, USDC, DAI, USDe, FDUSD, and more. Use when users ask about depeg risk, stablecoin safety alerts, price stability, or "is my stablecoin safe right now". Powered by Barker…