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BA use-usdc

USDC is Circle's stablecoin deployed across multiple blockchain ecosystems including EVM chains (Ethereum, Base, Arbitrum, Polygon, Arc) and Solana. Use this skill to check balances, send transfers, approve spending, and verify transactions. Triggers on: USDC balance, send USDC, transfer USDC, approve USDC, USDC allowance, verify USDC transfer, USDC contract address, USDC on Solana, Solana USDC, check balance, SPL token, Associated Token Account, ATA, ERC-20 USDC, parseUnits, formatUnits, 6 decimals, viem, @solana/kit.

ClawHub Agent Skills author: Madelyn v0.1.0 MIT-0 4 files body ≈ 2 023 tokens Open the sourceclawhub.ai↗ analyzed 2 d ago

As a process A 83/100 · Runs to the end — weak spots: result and completion

AnalyzerInfrastructuretype and topics are labelled automatically from the skill text
Runs in: OpenClaw Claude / Claude Code ChatGPT / Codex Gemini CLI Cursor GitHub Copilot / VS Code Qwen Code Kimi Code CLI Z.ai (GLM) DeepSeek (Deep Code) Mistral Vibe LangChain (deepagents) Goose OpenCode
JSON
Technical rating
B
89/100
safety, quality, tests
Safety 60%
90
Quality 40%
88
Run on models
none yet
Process rating
A
83/100
Runs to the end
Result and completion w 14
0
Inputs and preconditions w 11
70
Tools and files w 18
100
the three weakest of ten parameters · all ten

How to improve

    For the model run — optional
    • 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 · 10

    ✓ No critical or high findings

    Medium and low: 10
    • low Secrets in code secret-high-entropy-token references/solana.md:92
      High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
      const USDC_MINT = address("4zMM…cDU"); // Devnet
      quoted
    • low Secrets in code secret-high-entropy-token references/solana.md:93
      High-entropy token-like string (may be an id, hash or a credential)
      // Mainnet: EPjF…t1v
    • low Secrets in code secret-high-entropy-token references/solana.md:135
      High-entropy token-like string (may be an id, hash or a credential)
      USDC Mint: 4zMM…cDU
    • low Secrets in code secret-high-entropy-token references/solana.md:199
      High-entropy token-like string (may be an id, hash or a credential)
      USDC Mint:    4zMM…cDU
    • low Secrets in code secret-high-entropy-token references/solana.md:308
      High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
      - Devnet: `4zMM…cDU`
      quoted
    • low Secrets in code secret-high-entropy-token SKILL.md:51
      High-entropy token-like string (may be an id, hash or a credential) (documentation table row)
      | Ethereum Sepolia | 11155111 | `0x1c…238` |
      table
    • low Secrets in code secret-high-entropy-token SKILL.md:52
      High-entropy token-like string (may be an id, hash or a credential) (documentation table row)
      | Base Sepolia | 84532 | `0x03…F7e` |
      table
    • low Secrets in code secret-high-entropy-token SKILL.md:53
      High-entropy token-like string (may be an id, hash or a credential) (documentation table row)
      | Arbitrum Sepolia | 421614 | `0x75…A4d` |
      table
    • low Secrets in code secret-high-entropy-token SKILL.md:54
      High-entropy token-like string (may be an id, hash or a credential) (documentation table row)
      | Avalanche Fuji | 43113 | `0x54…c65` |
      table
    • low Secrets in code secret-high-entropy-token SKILL.md:55
      High-entropy token-like string (may be an id, hash or a credential) (documentation table row)
      | Polygon Amoy | 80002 | `0x41…582` |
      table

    Files scanned: 4. Evidence is masked. Grey chips explain why severity was lowered.

    Against the Agent Skills spec

    ✓ No remarks against the Agent Skills spec

    Process rating: all ten parameters 83/100

    • 0Result and completion. Does not say what the result is
    • 70Inputs and preconditions. Inputs and preconditions are listed
    • 100Tools and files. No external tools needed
    • 100Steps. 40 steps
    • 100When it triggers. States when to use and when not to
    • 100Failures and branches. 2 branches, has a failure section
    • 100Consistency. Name and required fields are in place
    • 100Execution cost. Instruction body is 2023 tokens
    • 100Running it twice. Mutating operations check current state
    • 100Progress reporting. Reports progress
    • medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing

    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)
    • +3Output format is not stated: the model decides each time
    • +1No license
    • +2Single-language instructions
    • +3Description length 524: enough signal without eating the budget
    • +4Structure: 22 headings
    • +3Step-by-step instructions: 40 items
    • +4Has examples (3 code blocks)
    • +4Reference files are cited in the instructions (2 of 2)

    Quality base 70; lint remarks subtract, signals add up to 100. Result: 88.

    External checks

    ClawHub: clean
    This is a disclosed USDC helper for balances, transfers, approvals, and verification, but users must handle wallet keys and transaction confirmations carefully.
    LLM: benign (high) · VirusTotal: · 29 May 2026