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BB usdc-dance-evvm-payment

Pay with USDC Krump (USDC.k) via x402 on Story Aeneid EVVM. Supports EVVM Native adapter (no EIP-3009 on token) and legacy Bridge adapter. Requires PRIVY_APP_ID and PRIVY_APP_SECRET (or private key for legacy path); credentials are user-supplied, not stored by the skill.

ClawHub Agent Skills author: Arun Nadarasa v0.1.2 15 files body ≈ 2 164 tokens Open the sourceclawhub.ai↗ analyzed 4 d ago

As a process B 68/100 · Nearly there — weak spots: result and completion, consistency, progress reporting

ProcedureGitHubAI and agentstype 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
76/100
safety, quality, tests
Safety 60%
80
Quality 40%
71
Run on models
none yet
Process rating
B
68/100
Nearly there
Result and completion w 14
0
Progress reporting w 2
0
Consistency w 8
40
the three weakest of ten parameters · all ten

How to improve

  1. Say in the description WHEN to use the skill ("use when…", example requests): that is the agent's main cue.
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 · 20

✓ No critical or high findings

Medium and low: 20
  • low Secrets in code secret-high-entropy-token examples/agent-payment-example.ts:13
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const adapterAddress = '0x00…314'; // Bridge EVVM adapter
    fixturequoted
  • low Secrets in code secret-high-entropy-token examples/agent-payment-example.ts:14
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const usdcDanceAddress = '0x5f…C40'; // BridgeUSDC
    fixturequoted
  • low Secrets in code secret-high-entropy-token examples/agent-payment-example.ts:15
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const evvmCoreAddress = '0xa6…A3b';
    fixturequoted
  • low Secrets in code secret-high-entropy-token examples/agent-payment-privy-example.ts:13
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const adapterAddress = '0x00…314'; // Bridge EVVM adapter
    fixturequoted
  • low Secrets in code secret-high-entropy-token examples/agent-payment-privy-example.ts:14
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const usdcDanceAddress = '0x5f…C40'; // BridgeUSDC
    fixturequoted
  • low Secrets in code secret-high-entropy-token examples/agent-payment-privy-example.ts:15
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const evvmCoreAddress = '0xa6…A3b';
    fixturequoted
  • low Secrets in code secret-high-entropy-token examples/two-agents-x402-direct.ts:13
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const USDC_DANCE_ADDRESS = process.env.BRIDGE_USDC_ADDRESS || '0x5f…C40';
    fixturequoted
  • low Secrets in code secret-high-entropy-token examples/two-agents-x402-native.ts:16
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const NATIVE_ADAPTER = process.env.BRIDGE_EVVM_NATIVE_ADAPTER || '0xDf…3cc';
    fixturequoted
  • low Secrets in code secret-high-entropy-token examples/two-agents-x402-native.ts:17
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const USDC_KRAMP = process.env.BRIDGE_USDC_ADDRESS || '0xd3…de5';
    fixturequoted
  • low Secrets in code secret-high-entropy-token examples/two-agents-x402-native.ts:19
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const EVVM_CORE_ADDRESS = process.env.EVVM_CORE_ADDRESS || '0xa6…A3b';
    fixturequoted
  • low Secrets in code secret-high-entropy-token examples/two-agents-x402-simulation.ts:15
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const ADAPTER_ADDRESS = process.env.BRIDGE_EVVM_ADAPTER || '0x00…314';
    fixturequoted
  • low Secrets in code secret-high-entropy-token examples/two-agents-x402-simulation.ts:16
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const USDC_DANCE_ADDRESS = process.env.BRIDGE_USDC_ADDRESS || '0x5f…C40';
    fixturequoted
  • low Secrets in code secret-high-entropy-token examples/two-agents-x402-simulation.ts:17
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    const EVVM_CORE_ADDRESS = process.env.EVVM_CORE_ADDRESS || '0xa6…A3b';
    fixturequoted
  • low Secrets in code secret-high-entropy-token SKILL.md:78
    High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
    adapterAddress: '0xDf…3cc', // EVVM Native x402 adapter
    quoted
  • low Secrets in code secret-high-entropy-token SKILL.md:79
    High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
    usdcDanceAddress: '0xd3…de5', // USDC.k (BridgeUSDC)
    quoted
  • low Secrets in code secret-high-entropy-token SKILL.md:80
    High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
    evvmCoreAddress: '0xa6…A3b',
    quoted
  • low Secrets in code secret-high-entropy-token SKILL.md:100
    High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
    adapterAddress: '0xDf…3cc', // Native adapter
    quoted
  • low Secrets in code secret-high-entropy-token SKILL.md:101
    High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
    usdcDanceAddress: '0xd3…de5',
    quoted
  • low Secrets in code secret-high-entropy-token src/index.ts:129
    High-entropy token-like string (may be an id, hash or a credential)
    const x402Sig = await gene…ivy({
  • low Secrets in code secret-high-entropy-token src/index.ts:339
    High-entropy token-like string (may be an id, hash or a credential)
    async function gene…ivy(options: {

Files scanned: 15. Evidence is masked. Grey chips explain why severity was lowered.

Against the Agent Skills spec

  • warning description-no-when description does not say WHEN to use the skill (no "use when")
  • note frontmatter-key unknown frontmatter key "requires"

Process rating: all ten parameters 68/100

  • 0Result and completion. Does not say what the result is
  • 0Progress reporting. Says nothing while it works
  • 40Consistency. Frontmatter name (usdc-dance-evvm-payment) differs from the folder (usdckrump)
  • 55Failures and branches. 1 branches
  • 70When it triggers. States when to use, but not when not to
  • 70Inputs and preconditions. Inputs and preconditions are listed
  • 100Tools and files. No external tools needed
  • 100Steps. 42 steps
  • 100Execution cost. Instruction body is 2164 tokens
  • 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 12 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)
  • +3Output format is not stated: the model decides each time
  • +1No license
  • +2Single-language instructions
  • +3Description length 271: enough signal without eating the budget
  • +4Structure: 24 headings
  • +3Step-by-step instructions: 42 items
  • +4Has examples (5 code blocks)

Quality base 70; lint remarks subtract, signals add up to 100. Result: 71.

External checks

ClawHub: suspicious
This appears to be a real crypto payment skill, but it should be reviewed carefully because it can sign and submit fund-moving transactions while some token, credential, and signing-scope details are unclear.
LLM: suspicious (high) · VirusTotal: benign · 28 May 2026