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 rudimentall1/agentic-wallet-guardian-v3 --skill guardian-checkgit clone --depth 1 https://github.com/rudimentall1/agentic-wallet-guardian-v3Wrote 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/rudimentall1/agentic-wallet-guardian-v3/guardian-check)<a href="https://agentmods.dev/skills/rudimentall1/agentic-wallet-guardian-v3/guardian-check"><img src="https://agentmods.dev/badge/skills/rudimentall1/agentic-wallet-guardian-v3/guardian-check/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/rudimentall1/agentic-wallet-guardian-v3/guardian-check"><img src="https://agentmods.dev/badge/skills/rudimentall1/agentic-wallet-guardian-v3/guardian-check.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 | $0.00121 | $0.00966 |
| Opus 5 | $0.00060 | $0.00483 |
| Sonnet 5 | $0.00024 | $0.00193 |
| Haiku 4.5 | $0.00012 | $0.00097 |
Grade A, and why
guardian-check 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 12d 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 — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.
guardian-check
MetaMask Agent Wallet's own Guard Mode / Beast Mode settings (spend
limits, allowlists, threat scanning) apply the same static rules to
every agent. Guardian adds a second, independent check: does this
specific action look right for this agent, right now — comparing
declared intent against actual calldata, this agent's own history, and
an explainable policy engine — before the mm command is allowed to
run at all.
Guardian has no access to private keys and never executes anything itself. It only returns a decision. MetaMask Agent Wallet remains the only thing that ever signs or broadcasts a transaction.
When to use this
Before running any mm command that moves funds or changes on-chain
state. Map the command to the fields Guardian needs:
| mm command | action_type | notes |
|---|---|---|
mm send |
transfer |
target = recipient address |
mm swap |
swap |
from_token/to_token from the swap args |
mm bridge |
bridge |
|
mm perps open/modify/close |
contract_call |
treat as a contract call against the perps protocol |
mm predict trade |
contract_call |
|
mm earn supply/withdraw |
contract_call |
|
mm aave borrow/repay |
contract_call |
|
mm pay (x402) |
transfer or contract_call depending on the resource being paid for |
Do not run this check for read-only commands (mm balance, mm history, mm address, mm portfolio) — nothing to evaluate, they
never move funds.
How to use this
-
Build the intent from what the user/agent is about to do with
mm:agent_id,wallet(themmaddress),chain,action_type(from the table above),target,amount,from_token/to_tokenif relevant. -
Run:
python scripts/check.py \ --agent-id "<your agent's stable id>" \ --wallet "<mm wallet address>" \ --chain "<chain>" \ --action-type "<mapped action_type>" \ --amount <amount> \ --target "<recipient or contract address>"
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.
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.
- 12d ago First seen · 86 lines · 121 tokens per session scan A a068d84353ae
guardian-check is a skill published in the GitHub repository rudimentall1/agentic-wallet-guardian-v3 (1 stars, last pushed 13d ago), licensed MIT. It adds 121 tokens to every session and 966 once invoked, about $0.0006 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.
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