Createskill

A framework for creating and maintaining coding-agent skills with consistent names, files, instructions, and workflows. It defines required preparation and validation steps for skill work.

In plain words
What is it for?
Use it to create, validate, update, or standardize a skill and its workflow, reference, and tool files.
Why use it?
It helps keep skills predictable and compatible with the surrounding agent system. It also reduces errors caused by inconsistent directory names or missing supporting files.

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/carbeneai/forge/createskill
Any agent
npx skills add CarbeneAI/Forge --skill createskill
Clone the repo
git clone --depth 1 https://github.com/CarbeneAI/Forge

Made for: Claude Code, Codex.

Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 645 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 $0.00060 $0.00645
Opus 5 $0.00030 $0.00322
Sonnet 5 $0.00012 $0.00129
Haiku 4.5 $0.00006 $0.00064

Measured 2d ago against content hash bced27a5e3f6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Createskill 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 2d 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.

.claude/skills/Createskill/SKILL.md · 78 lines

How it starts

The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Createskill

MANDATORY skill creation framework for ALL skill creation requests.

Authoritative Source

Before creating ANY skill, READ: ${PAI_DIR}/skills/CORE/SkillSystem.md

Canonical example to follow: ${PAI_DIR}/skills/Blogging/SKILL.md

TitleCase Naming Convention

All naming must use TitleCase (PascalCase).

Component Format Example
Skill directory TitleCase Blogging, Daemon, CreateSkill
Workflow files TitleCase.md Create.md, UpdateDaemonInfo.md
Reference docs TitleCase.md StyleGuide.md, ApiReference.md
Tool files TitleCase.ts ManageServer.ts
Help files TitleCase.help.md ManageServer.help.md

Wrong (NEVER use):

  • createskill, create-skill, CREATE_SKILL
  • create.md, update-info.md, SYNC_REPO.md

Workflow Routing

When executing a workflow, output this notification directly:

Running the **WorkflowName** workflow from the **Createskill** skill...
Workflow Trigger File
CreateSkill "create a new skill" workflows/CreateSkill.md
ValidateSkill "validate skill", "check skill" workflows/ValidateSkill.md
UpdateSkill "update skill", "add workflow" workflows/UpdateSkill.md
CanonicalizeSkill "canonicalize", "fix skill structure" workflows/CanonicalizeSkill.md

Examples

Example 1: Create a new skill from scratch

User: "Create a skill for managing my recipes"
→ Invokes CreateSkill workflow
→ Reads SkillSystem.md for structure requirements
→ Creates skill directory with TitleCase naming
→ Creates SKILL.md, workflows/, tools/
→ Generates USE WHEN triggers based on intent

Example 2: Fix an existing skill that's not routing properly

User: "The research skill isn't triggering - validate it"
→ Invokes ValidateSkill workflow
→ Checks SKILL.md against canonical format
→ Verifies TitleCase naming throughout
→ Verifies USE WHEN triggers are intent-based
→ Reports compliance issues with fixes

Read the full file on GitHub · 78 lines

Files

What ships with it

5 files 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. 2d ago First seen · 78 lines · 60 tokens per session scan A bced27a5e3f6

Subscribe to this mod's changes

Createskill is a skill published in the GitHub repository CarbeneAI/Forge (9 stars, last pushed 1mo ago), licensed MIT. It adds 60 tokens to every session and 645 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 2026-08-31.

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