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Anthropic Skill Creator

Checked
s-hiraoku·vlatest·agents

Generates custom, functional AI skills tailored to specific tasks, leveraging Anthropic models and developer best practices.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add s-hiraoku/synapse-a2a --skill anthropic-skill-creator -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

s-hiraoku

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned s-hiraoku/synapse-a2a at 844eb75d92.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
844eb75d92
Manifest
.agents/skills/anthropic-skill-creator/SKILL.md
Scanned
24 files, 1,374 lines
Copies in repo
3 — all of them scanned
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill enables AI agents to generate custom, functional AI skills tailored to specific tasks. It leverages Anthropic models and developer best practices to create skills that trigger correctly, execute reliably, and remain concise. The creation process involves defining use cases, designing frontmatter for triggering, organizing reusable resources, writing actionable instructions with error handling, and rigorous testing.

When to use it

This skill is useful in the following scenarios:

  • When you need to create a specialized AI skill for a specific task or workflow.
  • To build skills that respond accurately to user requests while avoiding irrelevant triggers.
  • For situations requiring repeatable validation logic and deterministic scripts within an agent's skillset.
  • When developing skills that integrate with other tools via MCP (Model Context Protocol).

Key capabilities

  • Frontmatter Design: Defines skill trigger selection using name (kebab-case) and description fields, including what the skill does, when to use it, and key capabilities.
  • Resource Organization: Utilizes scripts/ for deterministic checks and transforms, references/ for detailed documentation, and assets/ for templates and artifacts.
  • Instruction Writing: Creates imperative, testable steps with validation checkpoints and error handling guidance.
  • Testing Protocol: Includes triggering tests (ensuring correct activation), functional tests (validating output accuracy and tool usage), and performance comparisons.

Example prompts

Here are some example prompts that would trigger a skill created using this method:

  • "Extract clauses from this contract."
  • "Summarize the key risks in this legal document."
  • "Redline this PDF contract for review."

Tips & gotchas

  • Frontmatter is crucial: The name and description fields in the frontmatter are vital for accurate triggering. Be specific about what the skill does and when it should be used.
  • Avoid vague descriptions: Descriptions like "helps with projects" are ineffective; instead, clearly define the skill's purpose and trigger phrases.
  • Keep SKILL.md compact: Detailed information should reside in the references/ directory to maintain a concise core skill definition.