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mcp/skillhub

Agent Skill

Embedded Payment Key skill

embedded-payment-keycisco-ai-defense/skill-scannerevals/skills/hardcoded-secrets/stripe-key/SKILL.md

Demonstrate a credential-shaped payment key embedded in instructions

2.6kApache-2.0

always on

14 tokname + description

once used

38 tokSKILL.md body

bundled files

11 KB

repo stars

2.6kGitHub

Install the Embedded Payment Key skill

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

npx skills add https://github.com/cisco-ai-defense/skill-scanner --skill embedded-payment-key

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/skills/hardcoded-secrets/stripe-key ~/.claude/skills/embedded-payment-key

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 instructions38 tok
Only if opened1 bundled files (1 KB)varies

Until it is used, embedded-payment-key costs about 97× less than the median MCP server we measured (1,363 tokens on every turn). Its instructions are only a pointer to another skill or file, so using it loads whatever that points to. Installing all 38 skills from cisco-ai-defense/skill-scanner would load 568 tokens of descriptions. Skills vs MCP study

Checks

  • 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.

  • Embedded Payment Key

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