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BF fizzread

Instant access to 100K+ nonfiction book summaries with 1-minute audio previews. Free demo key included — no signup needed. Search, browse, and listen via FizzRead.

ClawHub Agent Skills author: yang1997434 v0.1.5 2 files body ≈ 2 284 tokens Open the sourceclawhub.ai↗ analyzed 3 d ago

As a process F 51/100 · Will not run — References files that are not bundled: {app_url}, {audio_url}

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
83/100
safety, quality, tests
Safety 60%
95
Quality 40%
64
Run on models
none yet
Process rating
F
51/100
Will not run
References files that are not bundled: {app_url}, {audio_url}
Tools and files w 18
0
Inputs and preconditions w 11
0
When it triggers w 12
20
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.
  2. The text references files that are not there: add them or drop the references.
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 Exfiltration net-credential-use SKILL.md:93
    Credential used in a network call (verify the destination is the intended service) (the skill's own vendor host)
    curl -s -H "Authorization: Bearer $FIZZREAD_API_KEY" "https://skill.fizzread.ai/v1/daily"
    vendor-host
  • low Exfiltration net-credential-use SKILL.md:128
    Credential used in a network call (verify the destination is the intended service) (the skill's own vendor host)
    curl -s -H "Authorization: Bearer $FIZZREAD_API_KEY" "https://skill.fizzread.ai/v1/search?q=…&limit=5"
    vendor-host
  • low Exfiltration net-credential-use SKILL.md:170
    Credential used in a network call (verify the destination is the intended service) (the skill's own vendor host)
    curl -s -H "Authorization: Bearer $FIZZREAD_API_KEY" "https://skill.fizzread.ai/v1/book/{slug}"
    vendor-host
  • low Exfiltration net-credential-use SKILL.md:201
    Credential used in a network call (verify the destination is the intended service) (the skill's own vendor host)
    curl -s -H "Authorization: Bearer $FIZZREAD_API_KEY" "https://skill.fizzread.ai/v1/categories"
    vendor-host
  • low Exfiltration net-credential-use SKILL.md:210
    Credential used in a network call (verify the destination is the intended service) (the skill's own vendor host)
    curl -s -H "Authorization: Bearer $FIZZREAD_API_KEY" "https://skill.fizzread.ai/v1/recommend?category=…&limit=5"
    vendor-host

Files scanned: 2. 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")
  • warning missing-ref reference to a missing file: {app_url}
  • warning missing-ref reference to a missing file: {audio_url}
  • note frontmatter-key unknown frontmatter key "homepage"
  • note frontmatter-key unknown frontmatter key "emoji"

Process rating: all ten parameters 51/100

Will not run. References files that are not bundled: {app_url}, {audio_url}
  • 0Tools and files. 2 referenced file(s) missing: {app_url}, {audio_url}
  • 0Inputs and preconditions. Does not say what the process needs to start
  • 20When it triggers. No condition that starts the skill
  • 40Consistency. Frontmatter name (fizzread) differs from the folder (fizzread-skill)
  • 60Result and completion. Output format stated, no completion criterion
  • 100Steps. 43 steps
  • 100Failures and branches. 15 branches, has a failure section
  • 100Execution cost. Instruction body is 2284 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)
  • +1No license
  • +2Single-language instructions
  • +3Description length 163: enough signal without eating the budget
  • +4Structure: 11 headings
  • +3Step-by-step instructions: 43 items
  • +3Output format is stated explicitly
  • +4Has examples (14 code blocks)

Quality base 70; lint remarks subtract, signals add up to 100. Result: 64.

External checks

ClawHub: suspicious
The skill does what it advertises, but it handles FizzRead API keys in a way that can expose a user's key in chat, command output, or logs.
LLM: suspicious (high) · VirusTotal: · 29 May 2026