FB xaut-trade
Buy or sell XAUT (Tether Gold) on Ethereum. Supports market orders (Uniswap V3) and limit orders (UniswapX). Wallet modes: Foundry keystore or WDK. Delegates non-XAUT intents to registered skills (e.g. Polymarket prediction markets, Hyperliquid trading). Triggers: buy XAUT, XAUT trade, swap USDT for XAUT, sell XAUT, swap XAUT for USDT, limit order, limit buy XAUT, limit sell XAUT, check limit order, cancel limit order, XAUT when, create wallet, setup wallet, polymarket, prediction market, bet on, odds on, hyperliquid, perp, perpetual, long, short, open long, open short, close position, leverage.
Buy or sell XAUT (Tether Gold) on Ethereum.
As a process B 66/100 · Nearly there — weak spots: consistency, progress reporting
What is at stake
The skill contains fragments that, in the wrong hands, cost money or data. Below: what the installer risks and what the author should do.
The skill contains commands that delete files, rewrite disks or execute code fetched from the network. The agent may run them without asking if it believes the instructions require it.
Replace destructive commands with safe equivalents that ask for confirmation, scope them to one folder, and stop piping curl into a shell: pin a version and a checksum.
Below is the worst case for this category. The finding here is medium: the guard saw a sign, not a proof.
The purpose itself is risky: wallets, browser password stores, offensive security. Even an honest implementation gives the agent access to things that cost money.
Explain in the description why the access is needed and how it is limited; add tests that show refusals on dangerous requests.
How to improve
- Address the high-severity findings: each costs 18 safety points. If one is a false positive, add the rule id to guard.allow in spec.yaml.
- The SKILL.md body is over 5,000 tokens: move reference detail into references/ and load it when needed.
- Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
- A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.
Guard findings · 97
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high Dangerous commands
cmd-pipe-to-shellreferences/onboarding.md:171Downloads and executes remote code from an unrecognised host (pipe to shell)curl -L https://foundry.paradigm.xyz | bash && \
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high Dangerous commands
cmd-pipe-to-shellscripts/setup.sh:189Downloads and executes remote code from an unrecognised host (pipe to shell)curl -L https://foundry.paradigm.xyz | bash
Medium and low: 95
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medium Risky intent
intent-wallet-secretsREADME.md:136Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target| `KEYSTORE_PASSWORD_FILE` | Path to keystore password file (**Foundry mode**) | `~/.aurehub/.wallet.password` |
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medium Dangerous commands
cmd-pipe-to-shellREADME.md:249Downloads and executes remote code from an unrecognised host (pipe to shell) (documentation table row)| foundry.paradigm.xyz | First setup | Downloads and executes Foundry installer (`curl \| bash`) |
table -
medium Dangerous commands
cmd-pipe-to-shellREADME.md:255Downloads and executes remote code from an unrecognised host (pipe to shell) (quoted — discussed, not commanded)- **Foundry installation** uses `curl | bash`. Review the source at [github.com/foundry-rs/foundry](https://github.com/foundry-rs/foundry) before proceeding. The setup script asks for confirmation bef
quoted -
medium Risky intent
intent-wallet-secretsreferences/onboarding.md:109Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target#### Step W3b: Security reminder — back up your seed phrase
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medium Risky intent
intent-wallet-secretsreferences/onboarding.md:113Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target> **Back up your seed phrase now.**
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medium Risky intent
intent-wallet-secretsreferences/onboarding.md:115Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target> Your wallet is protected by an encrypted vault. If the vault file (`~/.aurehub/.wdk_vault`) or password file (`~/.aurehub/.wdk_password`) is lost or corrupted, **your funds cannot be recovered** wit
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medium Risky intent
intent-wallet-secretsreferences/onboarding.md:124Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target> - **Never** save the seed phrase in cloud storage, screenshots, or chat.
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medium Risky intent
intent-wallet-secretsreferences/onboarding.md:127Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer targetDo NOT print the seed phrase in the chat. Only provide the export command.
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medium Risky intent
intent-wallet-secretsscripts/lib/export-seed.js:161Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target// ── Display seed phrase ──────────────────────────────────────────────────
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medium Risky intent
intent-wallet-secretsscripts/setup.sh:141Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target# ── Security notice: seed phrase backup ──────────────────────────────────────
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medium Dangerous commands
cmd-pipe-to-shellscripts/setup.sh:178Downloads and executes remote code from an unrecognised host (pipe to shell) (code comment)# S1: disclose what is about to run before executing curl|bash
comment -
medium Risky intent
intent-wallet-secretsscripts/setup.sh:207Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target# ── Step 4: Keystore password file ─────────────────────────────────────────────
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medium Risky intent
intent-wallet-secretsSKILL.md:43Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target| `KEYSTORE_PASSWORD_FILE` | Path to Foundry keystore password file (mode 0600) | When WALLET_MODE=foundry |
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medium Risky intent
intent-wallet-secretsSKILL.md:71Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target- Seed phrase export is TTY-gated and requires interactive confirmation
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medium Risky intent
intent-wallet-secretsSKILL.md:344Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target> **IMPORTANT: Back up your seed phrase**
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medium Risky intent
intent-wallet-secretsSKILL.md:348Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target> Export your 12-word seed phrase now and store it safely (paper or hardware backup — never in cloud storage or chat).
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medium Risky intent
intent-wallet-secretsSKILL.md:355Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target> Write down the 12 words and keep them offline. **Never share your seed phrase with anyone.**
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low Secrets in code
secret-high-entropy-tokenconfig.example.yaml:16High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)router: "0x68…c45"
fixturequoted -
low Secrets in code
secret-high-entropy-tokenconfig.example.yaml:17High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)quoter: "0x61…21e"
fixturequoted -
low Secrets in code
secret-high-entropy-tokenconfig.example.yaml:18High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)permit2: "0x00…BA3"
fixturequoted -
low Secrets in code
secret-high-entropy-tokenconfig.example.yaml:22High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)address: "0x68…F38"
fixturequoted -
low Secrets in code
secret-high-entropy-tokenconfig.example.yaml:25High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)address: "0xdA…ec7"
fixturequoted -
low Secrets in code
secret-high-entropy-tokenREADME.md:213High-entropy token-like string (may be an id, hash or a credential)0xf3…266 10000000000 \
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low Secrets in code
secret-high-entropy-tokenREADME.md:220High-entropy token-like string (may be an id, hash or a credential)0xf3…266 \
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low Exfiltration
read-dotenvreferences/balance.md:8Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/balance.md:15Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/balance.md:31Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/balance.md:40Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/balance.md:48Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/buy.md:3Reads a .env file (detector / deny-list definition)All commands below assume CWD is `$SCRIPTS_DIR` and env is sourced. Each Bash block must begin with `source ~/.aurehub/.env` and `cd "$SCRIPTS_DIR"`.
detector -
low Exfiltration
read-dotenvreferences/buy.md:14Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/buy.md:37Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/buy.md:62Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/buy.md:93Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/limit-order-buy-place.md:14Reads a .env filesource ~/.aurehub/.env
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low Secrets in code
secret-high-entropy-tokenreferences/limit-order-buy-place.md:43High-entropy token-like string (may be an id, hash or a credential)node swap.js allowance --token USDT --spender 0x00…BA3
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low Secrets in code
secret-high-entropy-tokenreferences/limit-order-buy-place.md:49High-entropy token-like string (may be an id, hash or a credential)node swap.js approve --token USDT --amount <AMOUNT_IN> --spender 0x00…BA3
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low Exfiltration
read-dotenvreferences/limit-order-buy-place.md:63Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/limit-order-cancel.md:6Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/limit-order-cancel.md:42Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/limit-order-sell-place.md:14Reads a .env filesource ~/.aurehub/.env
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low Secrets in code
secret-high-entropy-tokenreferences/limit-order-sell-place.md:43High-entropy token-like string (may be an id, hash or a credential)node swap.js allowance --token XAUT --spender 0x00…BA3
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low Secrets in code
secret-high-entropy-tokenreferences/limit-order-sell-place.md:49High-entropy token-like string (may be an id, hash or a credential)node swap.js approve --token XAUT --amount <AMOUNT_IN> --spender 0x00…BA3
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low Exfiltration
read-dotenvreferences/limit-order-sell-place.md:63Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/limit-order-status.md:6Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/onboarding.md:310Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/quote.md:10Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/sell.md:3Reads a .env file (detector / deny-list definition)All commands below assume CWD is `$SCRIPTS_DIR` and env is sourced. Each Bash block must begin with `source ~/.aurehub/.env` and `cd "$SCRIPTS_DIR"`.
detector -
low Exfiltration
read-dotenvreferences/sell.md:22Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/sell.md:86Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/sell.md:109Reads a .env filesource ~/.aurehub/.env
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low Exfiltration
read-dotenvreferences/sell.md:134Reads a .env filesource ~/.aurehub/.env
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low Secrets in code
secret-high-entropy-tokenscripts/__tests__/swap-cli.test.js:39High-entropy token-like string (may be an id, hash or a credential) (detector / deny-list definition; test fixture / example file)const result = parseCliArgs(['allowance', '--token', 'USDT', '--spender', '0x00…BA3']);
detectorfixture -
low Secrets in code
secret-high-entropy-tokenscripts/__tests__/swap-cli.test.js:42High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)expect(result.spender).toBe('0x00…BA3');fixturequoted -
low Secrets in code
secret-high-entropy-tokenscripts/__tests__/swap-cli.test.js:46High-entropy token-like string (may be an id, hash or a credential) (detector / deny-list definition; test fixture / example file)const result = parseCliArgs(['approve', '--token', 'USDT', '--amount', '1000', '--spender', '0x00…BA3']);
detectorfixture -
low Secrets in code
secret-high-entropy-tokenscripts/__tests__/swap-cli.test.js:50High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)expect(result.spender).toBe('0x00…BA3');fixturequoted -
low Secrets in code
secret-high-entropy-tokenscripts/lib/__tests__/config.test.js:46High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)' address: "0xdA…ec7"',
fixturequoted -
low Secrets in code
secret-high-entropy-tokenscripts/lib/__tests__/config.test.js:49High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)' address: "0x68…F38"',
fixturequoted -
low Secrets in code
secret-high-entropy-tokenscripts/lib/__tests__/config.test.js:58High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)expect(token.address).toBe('0xdA…ec7');fixturequoted -
low Secrets in code
secret-high-entropy-tokenscripts/lib/__tests__/config.test.js:66High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)' address: "0xdA…ec7"',
fixturequoted
…and 35 more
Files scanned: 40. Evidence is masked. Grey chips explain why severity was lowered.
Against the Agent Skills spec
- warning
body-longSKILL.md body ≈ 7244 tokens (recommended < 5000); move details to references/
Process rating: all ten parameters 66/100
- 0Progress reporting. Says nothing while it works
- 40Consistency. Frontmatter name (xaut-trade) differs from the folder (aurehub-xaut-trade)
- 60Tools and files. Uses tools (bash, node) that frontmatter does not declare
- 60Steps. 142 steps, 5 vague phrases
- 60Result and completion. Output format stated, no completion criterion
- 70When it triggers. States when to use, but not when not to
- 70Inputs and preconditions. Inputs and preconditions are listed
- 70Execution cost. Instruction body is 7244 tokens
- 100Failures and branches. 10 branches, has a failure section
- 100Running it twice. Mutating operations check current state
- medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing
- low 23 top-level sections: this looks like several domains in one skill
Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.
Quality signals
- +5Description has no quoted example phrases that should trigger the skill
- +4Description does not say when NOT to use the skill (false activations)
- -32 of 4 scripts are never mentioned in SKILL.md
- +2Single-language instructions
- +3Description length 602: enough signal without eating the budget
- +4Structure: 41 headings
- +3Step-by-step instructions: 142 items
- +3Output format is stated explicitly
- +4Has examples (22 code blocks)
- +4Reference files are cited in the instructions (9 of 12)
- +1License stated
Quality base 70; lint remarks subtract, signals add up to 100. Result: 79.