snap-private-payments

snap-private-payments is a skill for Claude Code, Codex from agentzeny/snap-public. It costs 17 tokens per session (365 once invoked), scanned A, original, MIT.

A skill for making private payments through SNAP shielded pools on Solana, a blockchain network. Shielded pools hide payment details within the supported pool system.

In plain words
What is it for?
Listing supported pools, depositing SOL or USDC, withdrawing to a wallet, withdrawing through a relayer, and estimating protocol or relayer fees.
Why use it?
It provides defined actions for handling deposits, transfers, withdrawals, and fee estimates without exposing every payment directly on-chain.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Listing supported pools, depositing SOL or USDC, withdrawing to a wallet, withdrawing through a relayer, and estimating protocol or relayer fees.

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Install with agentmods
npx agentmods add skills/agentzeny/snap-public/hermes
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.

Any agent
npx skills add agentzeny/snap-public --skill hermes
Clone the repo
git clone --depth 1 https://github.com/agentzeny/snap-public

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 snap-private-payments

README.md
[![agentmods](https://agentmods.dev/badge/skills/agentzeny/snap-public/hermes/github.svg)](https://agentmods.dev/skills/agentzeny/snap-public/hermes)
Your own site
<a href="https://agentmods.dev/skills/agentzeny/snap-public/hermes"><img src="https://agentmods.dev/badge/skills/agentzeny/snap-public/hermes/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.

agentmods 80×15 button for snap-private-payments

Your own site · 80×15
<a href="https://agentmods.dev/skills/agentzeny/snap-public/hermes"><img src="https://agentmods.dev/badge/skills/agentzeny/snap-public/hermes.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 365 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00017 $0.00365
Opus 5.5 $0.00007 $0.00146
Sonnet 5.5 $0.00003 $0.00073
Haiku 4.5 $0.00002 $0.00036

Measured 1mo ago against content hash db104a2ba7c4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

snap-private-payments 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 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (snap-handler.ts), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

integrations/hermes/SKILL.md · 47 lines

What it actually says

SNAP Private Payments

Use this skill when an agent needs to deposit, transfer, withdraw, or estimate fees for SNAP private payments on Solana.

Capabilities

  • List supported SNAP mainnet pools.
  • Deposit into a fixed-denomination shielded pool.
  • Withdraw a SNAP note directly to a recipient wallet.
  • Withdraw through a relayer when a relayerUrl is configured.
  • Estimate protocol and relayer fees before withdrawal.

Inputs

The handler accepts a command object:

{
  action: "list_pools" | "deposit" | "withdraw" | "estimate_fee",
  poolAddress?: string,
  amount?: number,
  note?: unknown,
  recipientAddress?: string,
  relayerUrl?: string
}

Mainnet Defaults

  • RPC: https://api.mainnet-beta.solana.com
  • 0.1 SOL pool: B8SyffZKt8LABKogWjH9rZcjY5PV2hyYRCbTxxbcrpFf
  • 1 USDC pool: 5LeuHrPBgHNhgbCy996MEjcsBk5gNHhVj6AiuuCHZ8od
  • 10 USDC pool: ECuHf8kgiWfmL3Q6id4WGBQWvuukhzqvF5vsxuPAKZBv

Environment

  • SNAP_RPC_URL
  • SNAP_POOL_ADDRESS
  • SNAP_RELAYER_URL
  • SNAP_WALLET_KEYPAIR_JSON
Files

What ships with it

1 file 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.

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. 1mo ago First seen · 47 lines · 17 tokens per session scan A db104a2ba7c4

Subscribe to this mod's changes

snap-private-payments is a skill published in the GitHub repository agentzeny/snap-public (0 stars, last pushed 4mo ago), licensed MIT. It adds 17 tokens to every session and 365 once invoked, about $0.0001 per session on Opus 5.5. 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.

Related

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