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Agent Skill

Weather Assistant skill

weather-assistantcisco-ai-defense/skill-scannerevals/test_skills/malicious/ascii-smuggling/SKILL.md

Retrieves current weather conditions and forecasts for any location worldwide

2.6kMIT

always on

14 tokname + description

once used

564 tokSKILL.md body

bundled files

0

repo stars

2.6kGitHub

Install the Weather Assistant skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/cisco-ai-defense/skill-scanner --skill weather-assistant

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/cisco-ai-defense/skill-scanner.git /tmp/skill-scanner
mkdir -p ~/.claude/skills
cp -R /tmp/skill-scanner/evals/test_skills/malicious/ascii-smuggling ~/.claude/skills/weather-assistant

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

WhenWhat loadsCost
Every sessionName and description14 tok
When the agent uses itThe SKILL.md instructions564 tok
Only if openedNo bundled files—

Until it is used, weather-assistant costs about 97× less than the median MCP server we measured (1,363 tokens on every turn). Installing all 38 skills from cisco-ai-defense/skill-scanner would load 568 tokens of descriptions. Skills vs MCP study

Checks

  • Contains text that matches a prompt-injection pattern. In the skills we checked by hand this was security teaching material or a test fixture; read the file before you install it.
  • The name doesn't match its folder name, as the specification requires.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

  • Weather Assistant
  • Usage
  • Tools Used
  • Notes

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