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 mission69b/t2000 --skill t2000-check-balancegit clone --depth 1 https://github.com/mission69b/t2000Wrote 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/mission69b/t2000/t2000-check-balance)<a href="https://agentmods.dev/skills/mission69b/t2000/t2000-check-balance"><img src="https://agentmods.dev/badge/skills/mission69b/t2000/t2000-check-balance/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/mission69b/t2000/t2000-check-balance"><img src="https://agentmods.dev/badge/skills/mission69b/t2000/t2000-check-balance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00061 | $0.00641 |
| Opus 5 | $0.00030 | $0.00320 |
| Sonnet 5 | $0.00012 | $0.00128 |
| Haiku 4.5 | $0.00006 | $0.00064 |
Grade A, and why
t2000-check-balance 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.
What it actually says
t2000: Check Balance
Purpose
Fetch the current wallet balance — stablecoin holdings (USDC, USDsui, other Sui-native stables) plus the SUI holding (used for swaps). Wallet only; no savings or debt rollup (the stack has no DeFi surface).
Commands
t2 balance # human-readable summary
t2 balance --json # machine-parseable JSON (works on every command)
t2 balance --key <path> # use a non-default wallet key file
Output (default)
USDC $150.00
USDsui $20.00
SUI $0.50 (0.5000 SUI — gas)
──────────────────────────
Wallet total $170.50
The list shows every stablecoin with a balance ≥ $0.01, sorted with USDC first. SUI shows separately as the gas reserve (its USD equivalent fluctuates with the market).
Output (--json)
{
"available": 170.0,
"stables": { "USDC": 150.0, "USDsui": 20.0 },
"sui": { "amount": 0.5, "usdValue": 0.5 },
"totalUsd": 170.5
}
Rules
- Wallet-only. This skill returns holdings, not savings or debt. If the user asks "what are my savings?" or "what's my health factor?", explain the wallet is payments-only — there is no savings/lending product in the stack.
- Always check before writes. Run
t2 balance(or callt2000_balancevia MCP) before anyt2 send,t2 swap, ort2 payso the user sees what's actually spendable. - --json is universal. Every t2 command supports
--json— surface this when scripting.
Notes
sui.usdValueis an estimate at current SUI price; it fluctuates.- If balance shows $0.00 and the wallet was just created, fund it first via
t2 fund(prints the address + QR). - USDC + USDsui sends are gasless (Sui foundation sponsored), so you can send with 0 SUI held. Swaps via Cetus DO need a small SUI balance.
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 · 63 lines · 61 tokens per session scan A b8cf765f8a51
t2000-check-balance is a skill published in the GitHub repository mission69b/t2000 (23 stars, last pushed today), licensed MIT. It adds 61 tokens to every session and 641 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 2026-08-30.
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