BC virustotal
Free malware, network and IP analysis! Scan files, URLs, domains, and IPs with VirusTotal. WARNING: Submitted files, URLs, and artifacts are shared with VirusTotal and its security partners — do NOT upload proprietary, confidential, or regulated data. Prefer hash lookups for sensitive files.
As a process C 55/100 · Has gaps — weak spots: when it triggers, inputs and preconditions, consistency
How to improve
- 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 · 2
✓ No critical or high findings
Medium and low: 2
-
low Risky intent
intent-offensive-securityskill-card.md:2Offensive-security / dual-use content (legitimate for authorised testing; review intended use) (detector / deny-list definition)Scan files, URLs, domains, and IP addresses with the VirusTotal Public API v3 for malware analysis and threat intelligence. <br>
detector -
low Risky intent
intent-offensive-securitySKILL.md:25Offensive-security / dual-use content (legitimate for authorised testing; review intended use) (detector / deny-list definition)Interact with the VirusTotal Public API v3 to scan files, URLs, domains, and IP addresses for malware analysis and threat intelligence.
detector
Files scanned: 4. Evidence is masked. Grey chips explain why severity was lowered.
Against the Agent Skills spec
- warning
frontmatter-yamlSKILL.md: the frontmatter is not valid YAML (YAML parse error: Nested mappings are not allowed in compact mappings at line 5, column 14: description: Free malware, network and IP analysis! Scan files, URLs, domains, … ^ ); fields were read line by line. The usual cause is a colon inside an unquoted value - warning
description-no-whendescription does not say WHEN to use the skill (no "use when") - note
frontmatter-keyunknown frontmatter key "triggers" - note
frontmatter-keyunknown frontmatter key "requires"
Process rating: all ten parameters 55/100
- 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. 4 mutating operations with no state check
- 40Consistency. Frontmatter name (virustotal) differs from the folder (virustotal3)
- 60Tools and files. Uses tools (bash, web) that frontmatter does not declare
- 60Result and completion. Output format stated, no completion criterion
- 85Steps. 60 steps, 1 vague phrases
- 100Failures and branches. 2 branches, has a failure section
- 100Execution cost. Instruction body is 2906 tokens
- medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing
- low 14 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)
- -218 emoji in the instructions: noise for the model
- +2Single-language instructions
- +3Description length 292: enough signal without eating the budget
- +4Structure: 31 headings
- +3Step-by-step instructions: 60 items
- +3Output format is stated explicitly
- +4Has examples (15 code blocks)
- +1License stated
Quality base 70; lint remarks subtract, signals add up to 100. Result: 62.
External checks
ClawHub: clean
This skill is a clearly documented VirusTotal integration that requires confirmation before sharing files, URLs, domains, or IPs with VirusTotal.
LLM: benign (high) · VirusTotal: · 28 May 2026