create-skill

A workflow for turning a completed task into a reusable coding-agent skill. It creates the skill instructions, supporting scripts, and tests, then stages them for review before committing.

In plain words
What is it for?
Capturing a repeated workflow, updating a similar existing skill, and creating test cases that measure whether the skill works.
Why use it?
It prevents useful work patterns from being lost and checks that a new skill is not duplicating an existing one.

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/bennyoooo/airbot/create-skill
Any agent
npx skills add Bennyoooo/Airbot --skill create-skill
Clone the repo
git clone --depth 1 https://github.com/Bennyoooo/Airbot

Made for: Claude Code, Codex.

Per session 84 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 858 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 $0.00084 $0.00858
Opus 5 $0.00042 $0.00429
Sonnet 5 $0.00017 $0.00172
Haiku 4.5 $0.00008 $0.00086

Measured 2d ago against content hash 5e7e6b1182d2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

create-skill 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.

skill-maxing-plugin/skills/create-skill/SKILL.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

create-skill

Crystallize a workflow into a durable, tested skill. The CLI is model-agnostic: you synthesize the content (name, body, scripts, real eval tasks); the CLI stages, smoke-tests, and commits it atomically.

Two entry points

  1. Explicit — the user says "turn X into a skill."
  2. Reflection — after completing a non-trivial task, consider whether it is reusable. Fire this sparingly (review fatigue is real): only when the work was non-trivial (several steps, a fixed bug, a discovered workflow) AND plausibly recurs. When in doubt, don't interrupt.

Step 0 — Prefer update over create

Before creating, search for an existing skill that already covers this:

scripts/discover.sh "<capability>" --json

If a close match exists, update or optimize it instead of making a near-duplicate. The skillify step also runs this check and will refuse with a suggestion unless you pass --new.

Step 1 — Synthesize a draft

Write a draft JSON file. The eval scaffold MUST contain real, scorable tasks (not a stub) — pick a scorer per task: exact/normalized/code-exec/success-signal for deterministic outputs, agent-judge (with a rubric) for prose/judgment skills.

{
  "name": "release-notes",
  "description": "Draft release notes from a git log range.",
  "body": "# release-notes\n\n...instructions...\n",
  "tools": ["Bash"],
  "scripts": [{ "path": "scripts/changelog.sh", "content": "#!/usr/bin/env bash\n..." }],
  "eval": {
    "skill": "release-notes",
    "tasks": [
      { "id": "happy", "input": "v1.0..v1.1", "scorer": "agent-judge", "rubric": "Groups changes by type; no raw SHAs; user-facing tone." }
    ]
  },
  "smokeTest": ["bash", "scripts/changelog.sh", "--help"]
}

Step 2 — Stage (with the human approval gate)

scripts/skillify.sh --draft draft.json            # stage; smoke test skipped unless authorized
scripts/skillify.sh --draft draft.json --allow-exec   # stage AND run the smoke test in the sandbox

Read the full file on GitHub · 75 lines

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 · 75 lines · 84 tokens per session scan A 5e7e6b1182d2

Subscribe to this mod's changes

create-skill is a skill published in the GitHub repository Bennyoooo/Airbot (22 stars, last pushed 4d ago), licensed MIT. It adds 84 tokens to every session and 858 once invoked, about $0.0004 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.

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