skill-creator

skill-creator is a skill for Claude Code, Codex from DemonDamon/AgenticX. It costs 62 tokens per session (874 once invoked), scanned A, original, Apache-2.0.

A guide for creating or updating AgenticX skills: reusable instructions that teach an agent how to handle a recurring multi-step task.

In plain words
What is it for?
Use it to save a successful conversation as a local skill, improve an existing skill’s instructions or discoverability, and organise supporting scripts or reference files.
Why use it?
It captures a proven workflow, its triggers, inputs, outputs, and edge cases so the process does not have to be reconstructed from scratch each time.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/demondamon/agenticx/skill-creator
Any agent
npx skills add DemonDamon/AgenticX --skill skill-creator
Clone the repo
git clone --depth 1 https://github.com/DemonDamon/AgenticX

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for skill-creator

README.md
[![agentmods](https://agentmods.dev/badge/skills/demondamon/agenticx/skill-creator.svg)](https://agentmods.dev/skills/demondamon/agenticx/skill-creator)
Your own site
<a href="https://agentmods.dev/skills/demondamon/agenticx/skill-creator"><img src="https://agentmods.dev/badge/skills/demondamon/agenticx/skill-creator.svg" alt="Measured on agentmods" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 874 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00062 $0.00874
Opus 5 $0.00031 $0.00437
Sonnet 5 $0.00012 $0.00175
Haiku 4.5 $0.00006 $0.00087

Measured 4d ago against content hash a3be5a31be76, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skill-creator scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agenticx/skills/bundled/skill-creator/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Creator (AgenticX)

Guide for turning a successful conversation workflow into a discoverable skill under ~/.agenticx/skills/.

For listing, installing, or registry operations, use the separate agenticx-skill-manager skill.

When to use

  • User says: 「落盘 skill」「封装成 skill」「工具调用太多,保存成 skill」
  • You completed a non-trivial task (roughly 5+ tool calls) and the steps should be reused
  • An existing agent-created skill needs a clearer description or body after skill_manage patch

Capture intent (from current chat)

Before writing anything, extract from this conversation:

  1. Goal — what the skill enables the agent to do
  2. Trigger — phrases/contexts when the skill should activate (put in description, not only the body)
  3. Inputs/outputs — formats, files, APIs, edge cases the user corrected
  4. Proven steps — the sequence that actually worked (not aspirational steps)

Confirm the skill name (hyphen-case, e.g. a-stock-daily-report) with the user if unclear.

SKILL.md anatomy

my-skill/
├── SKILL.md          # required
├── scripts/          # optional — deterministic helpers
└── references/       # optional — long docs loaded on demand

Frontmatter (required)

---
name: my-skill          # MUST match skill_manage name= parameter
description: One line on what it does AND when to trigger it (pushy but accurate).
---
  • name — lowercase hyphen-case identifier; required for Desktop Skills scan
  • description — primary trigger signal; include when-to-use phrases
  • Optional: version, title, requires_tools, metadata — AgenticX allows these; do not omit name

Keep the body under ~500 lines; split heavy detail into references/.

Persist (mandatory path)

  1. skill_use(skill-creator) — you are here; follow this guide
  2. Draft full SKILL.md text (frontmatter + body)
  3. skill_manage(action='create', name='<dir-name>', content='<full SKILL.md>')
    • Or from_path / from_url for large files
    • Never bash_exec / file_write directly into ~/.agenticx/skills/
  4. Read the tool result:
    • discoverable: true → skill appears in Settings → Skills
    • frontmatter_fixed non-empty → tell the user what was auto-corrected (e.g. injected name)
    • ERROR → do not claim success; fix and retry
  5. skill_list — optional double-check the name appears

Read the full file on GitHub · 103 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 103 lines · 62 tokens per session scan A a3be5a31be76

Subscribe to this mod's changes

skill-creator is a skill published in the GitHub repository DemonDamon/AgenticX (219 stars, last pushed 4d ago), licensed Apache-2.0. It adds 62 tokens to every session and 874 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.