SKILLEMALL.ai
RU Sign in

BC siwa

SIWA (Sign-In With Agent) authentication for ERC-8004 registered agents.

ClawHub Agent Skills author: Builders Garden v0.0.4 18 files body ≈ 1 931 tokens Open the sourceclawhub.ai↗ analyzed 2 d ago

As a process C 61/100 · Has gaps — weak spots: result and completion, when it triggers, inputs and preconditions

ProcedureAI and agentsInfrastructuretype 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
81/100
safety, quality, tests
Safety 60%
92
Quality 40%
65
Run on models
none yet
Process rating
C
61/100
Has gaps
Result and completion w 14
0
Inputs and preconditions w 11
0
Progress reporting w 2
0
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 · 8

✓ No critical or high findings

Medium and low: 8
  • low Secrets in code secret-high-entropy-token references/contract-addresses.md:11
    High-entropy token-like string (may be an id, hash or a credential) (documentation table row)
    | Base | `8453` | `0x80…432` | `0x80…b63` |
    table
  • low Secrets in code secret-high-entropy-token references/contract-addresses.md:17
    High-entropy token-like string (may be an id, hash or a credential) (documentation table row)
    | Base Sepolia | `84532` | `0x80…D9e` | `0x80…713` |
    table
  • low Secrets in code secret-high-entropy-token references/contract-addresses.md:18
    High-entropy token-like string (may be an id, hash or a credential) (documentation table row)
    | ETH Sepolia | `11155111` | `0x80…847` | — |
    table
  • low Secrets in code secret-high-entropy-token references/contract-addresses.md:19
    High-entropy token-like string (may be an id, hash or a credential) (documentation table row)
    | Linea Sepolia | `59141` | `0x80…2e7` | — |
    table
  • low Secrets in code secret-high-entropy-token references/contract-addresses.md:20
    High-entropy token-like string (may be an id, hash or a credential) (documentation table row)
    | Polygon Amoy | `80002` | `0x80…898` | — |
    table
  • low Secrets in code secret-high-entropy-token references/siwa-spec.md:67
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file)
    0x74…Eb0
    fixture
  • low Secrets in code secret-high-entropy-token references/siwa-spec.md:90
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    "address": "0x74…Eb0",
    fixturequoted
  • low Secrets in code secret-high-entropy-token references/siwa-spec.md:166
    High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
    "address": "0x74…Eb0",
    fixturequoted

Files scanned: 12. 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 61/100

  • 0Result and completion. Does not say what the result is
  • 0Inputs and preconditions. Does not say what the process needs to start
  • 0Progress reporting. Says nothing while it works
  • 20When it triggers. No condition that starts the skill
  • 30Running it twice. 3 mutating operations with no state check
  • 100Tools and files. No external tools needed
  • 100Steps. 11 steps
  • 100Failures and branches. 1 branches, has a failure section
  • 100Consistency. Name and required fields are in place
  • 100Execution cost. Instruction body is 1931 tokens

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)
  • +3Description length 72: 120–800 characters recommended
  • +3Output format is not stated: the model decides each time
  • -45 reference files, but SKILL.md never points to them: the model will not open them
  • +1No license
  • +2Single-language instructions
  • +4Structure: 16 headings
  • +3Step-by-step instructions: 11 items
  • +4Has examples (4 code blocks)

Quality base 70; lint remarks subtract, signals add up to 100. Result: 65.

External checks

ClawHub: suspicious
This appears to be a legitimate SIWA authentication skill, but it can give agents wallet-signing, transaction, and payment authority without consistently requiring clear approval or spend limits.
LLM: suspicious (high) · VirusTotal: suspicious · 28 May 2026