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 agentmods add skills/obolnetwork/obol-stack/swapnpx skills add ObolNetwork/obol-stack --skill swapgit clone --depth 1 https://github.com/ObolNetwork/obol-stackWhat 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 | $0.00101 | $0.02293 |
| Opus 5 | $0.00051 | $0.01146 |
| Sonnet 5 | $0.00020 | $0.00459 |
| Haiku 4.5 | $0.00010 | $0.00229 |
Grade A, and why
swap 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.
How it starts
The opening of the file, as written. The whole thing — 150 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Swap
Convert tokens the agent actually earns and spends. The x402 rails pay you
in USDC on Base or OBOL on Ethereum mainnet; on-chain writes need
ETH for gas (on mainnet — Base writes cost fractions of a cent). This
skill covers the treasury moves between them using Uniswap V3, with quotes
from QuoterV2 and execution through the agent's remote-signer
(ethereum-local-wallet skill).
Iron rules — no exceptions:
- Quote before every swap. Never send a swap without a fresh QuoterV2
quote and an
amountOutMinimumderived from it. - Confirm with the user before sending any swap, stating: amount in, expected amount out, minimum out, fee tier, chain. Never swap autonomously.
- Never swap more than the immediate need (e.g. gas top-ups: swap for ~2–4 weeks of expected gas, not the whole balance).
- Addresses below were verified on-chain (
eth_getCode) on 2026-07-06 (Arbitrum addresses verified 2026-07-10). Re-verify withrpc.sh code <addr>if anything reverts unexpectedly.
Verified addresses
| Contract | Base (8453) | Ethereum mainnet (1) | Arbitrum (42161) |
|---|---|---|---|
| Uniswap V3 SwapRouter02 | 0x2626664c2603336E57B271c5C0b26F421741e481 |
0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45 |
0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45 |
| Uniswap V3 QuoterV2 | 0x3d4e44Eb1374240CE5F1B871ab261CD16335B76a |
0x61fFE014bA17989E743c5F6cB21bF9697530B21e |
0x61fFE014bA17989E743c5F6cB21bF9697530B21e |
| USDC (6 decimals) | 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 |
0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (native) |
| WETH (18 decimals) | 0x4200000000000000000000000000000000000006 |
0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 |
0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 |
| OBOL (18 decimals) | — (Base-Sepolia only, no mainnet-Base deploy) | 0x0B010000b7624eb9B3DfBC279673C76E9D29D5F7 |
— (no Arbitrum deploy) |
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.
- 2d ago First seen · 150 lines · 101 tokens per session scan A 3469d05d849d
swap is a skill published in the GitHub repository ObolNetwork/obol-stack (11 stars, last pushed 3d ago), licensed Apache-2.0. It adds 101 tokens to every session and 2,293 once invoked, about $0.0005 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 2026-08-30.
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