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BB ethereum-jsonrpc-skill

Operate Ethereum execution JSON-RPC through UXC with the official execution OpenRPC schema, public EVM read methods, and eth_subscribe pubsub guardrails.

ClawHub Agent Skills author: jolestar v1.0.0 MIT-0 5 files · 1 script body ≈ 1 388 tokens Open the sourceclawhub.ai↗ analyzed 4 d ago

As a process B 67/100 · Nearly there — weak spots: result and completion, running it twice, progress reporting

ProcedureInfrastructuretype 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
85/100
safety, quality, tests
Safety 60%
95
Quality 40%
69
Run on models
none yet
Process rating
B
67/100
Nearly there
Result and completion w 14
0
Progress reporting w 2
0
Running it twice w 4
30
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 · 5

✓ No critical or high findings

Medium and low: 5
  • low Secrets in code secret-high-entropy-token references/usage-patterns.md:31
    High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
    ethereum-jsonrpc-cli eth_call '[{"to":"0xA0…b48","data":"0x313ce567"},"latest"]'
    quoted
  • low Secrets in code secret-high-entropy-token references/usage-patterns.md:35
    High-entropy token-like string (may be an id, hash or a credential) (detector / deny-list definition)
    ethereum-jsonrpc-cli eth_getLogs '[{"fromBlock":"latest","toBlock":"latest","address":["0xA0…b48"]}]'
    detector
  • low Secrets in code secret-high-entropy-token references/usage-patterns.md:58
    High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
    '{"params":["logs",{"address":"0xA0…b48"}]}' \
    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)
    `ethereum-jsonrpc-cli eth_call '[{"to":"0xA0…b48","data":"0x313ce567"},"latest"]'`
    quoted
  • low Secrets in code secret-high-entropy-token SKILL.md:84
    High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
    - `uxc subscribe start wss://<verified-ethereum-rpc-host> eth_subscribe '{"params":["logs",{"address":"0xA0…b48"}]}' --sink file:$HOME/.uxc/subscriptions/eth-logs.ndj
    quoted

Files scanned: 5. 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")

Process rating: all ten parameters 67/100

  • 0Result and completion. Does not say what the result is
  • 0Progress reporting. Says nothing while it works
  • 30Running it twice. 1 mutating operations with no state check
  • 50When it triggers. No condition that starts the skill
  • 55Failures and branches. 1 branches
  • 70Inputs and preconditions. Inputs and preconditions are listed
  • 100Tools and files. No external tools needed
  • 100Steps. 57 steps
  • 100Consistency. Name and required fields are in place
  • 100Execution cost. Instruction body is 1388 tokens
  • medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing
  • low The response is described with custom markup (6 tags): a typed call is more reliable

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
  • +4No input/output examples
  • -31 of 1 scripts are never mentioned in SKILL.md
  • +1No license
  • +2Single-language instructions
  • +3Description length 153: enough signal without eating the budget
  • +4Structure: 10 headings
  • +3Step-by-step instructions: 57 items
  • +4Reference files are cited in the instructions (1 of 1)

Quality base 70; lint remarks subtract, signals add up to 100. Result: 69.

External checks

ClawHub: clean
This skill is a disclosed Ethereum read-only JSON-RPC helper with manageable network and local log-file behavior.
LLM: benign (high) · VirusTotal: · 29 May 2026