BC Yelp
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As a process C 58/100 · Has gaps — weak spots: result and completion, when it triggers, running it twice
How to improve
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-useapi-workflows.md:8Credential used in a network call (verify the destination is the intended service) (documentation of a security skill)curl -sS -H "Authorization: Bearer ${YELP_API_KEY}" \security skill -
low Exfiltration
net-credential-useapi-workflows.md:21Credential used in a network call (verify the destination is the intended service) (documentation of a security skill)curl -sS -H "Authorization: Bearer ${YELP_API_KEY}" \security skill -
low Exfiltration
net-credential-useapi-workflows.md:31Credential used in a network call (verify the destination is the intended service) (documentation of a security skill)curl -sS -H "Authorization: Bearer ${YELP_API_KEY}" \security skill -
low Exfiltration
net-credential-useapi-workflows.md:41Credential used in a network call (verify the destination is the intended service) (documentation of a security skill)curl -sS -H "Authorization: Bearer ${YELP_API_KEY}" \security skill -
low Exfiltration
net-credential-useapi-workflows.md:45Credential used in a network call (verify the destination is the intended service) (documentation of a security skill)curl -sS -H "Authorization: Bearer ${YELP_API_KEY}" \security skill
Files scanned: 9. Evidence is masked. Grey chips explain why severity was lowered.
Against the Agent Skills spec
- warning
name-formatname should be kebab-case (lowercase letters, digits, hyphens) - note
frontmatter-keyunknown frontmatter key "slug" - note
frontmatter-keyunknown frontmatter key "homepage" - note
frontmatter-keyunknown frontmatter key "changelog"
Process rating: all ten parameters 58/100
- 0Result and completion. Does not say what the result is
- 0Progress reporting. Says nothing while it works
- 20When it triggers. No condition that starts the skill
- 30Running it twice. 2 mutating operations with no state check
- 60Tools and files. Uses tools (bash, web) that frontmatter does not declare
- 70Inputs and preconditions. Inputs and preconditions are listed
- 70Failures and branches. 5 branches
- 100Steps. 55 steps
- 100Consistency. Name and required fields are in place
- 100Execution cost. Instruction body is 2020 tokens
- medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing
- low 13 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 146: enough signal without eating the budget
- +4Structure: 20 headings
- +3Step-by-step instructions: 55 items
- +4Has examples (1 code blocks)
Quality base 70; lint remarks subtract, signals add up to 100. Result: 76.
External checks
ClawHub: clean
This Yelp skill is a disclosed Yelp research helper with optional API use and local notes, and I found no evidence of hidden or destructive behavior.
LLM: benign (high) · VirusTotal: · 29 May 2026