skill-creator

A skill for creating and organising agent skills according to the agentskills.io specification. It covers skill folders, procedural instructions, metadata, references, assets, and discoverability.

In plain words
What is it for?
Use it when creating new agent skills, improving their instructions or metadata, or arranging supporting resources.
Why use it?
It helps produce skill packages that are structured consistently and easier for agents to find and use.

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/webmaxru/ai-native-dev/skill-creator
Any agent
npx skills add webmaxru/ai-native-dev --skill skill-creator
Clone the repo
git clone --depth 1 https://github.com/webmaxru/ai-native-dev

Made for: Claude Code, Codex.

Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 666 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00052 $0.00666
Opus 5 $0.00026 $0.00333
Sonnet 5 $0.00010 $0.00133
Haiku 4.5 $0.00005 $0.00067

Measured 2d ago against content hash 667ea4858d64, 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 2d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/validate-metadata.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.github/skills/skill-creator/SKILL.md · 45 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

3 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 · 45 lines · 52 tokens per session scan A 667ea4858d64

Subscribe to this mod's changes

skill-creator is a skill published in the GitHub repository webmaxru/ai-native-dev (1 stars, last pushed 9d ago), with no licence file. It adds 52 tokens to every session and 666 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.

Related

Other skills, from other repositories

hyperbrief

Use AFTER hyperbrief-trigger-check returns FULLHYPERBRIEF, SUMMARYBRIEF, DEEPBRIEF, or MINIMALBRIEF. v0.9 adds the request tier (Hyperbrief.md §2.6) — a bare request for a brief is a SUMMARYBRIEF rather than the heaviest tier, and DEEPBRIEF (§0.6) is request-only and the only tier permitted to fan out, so an unnamed…

SoliEstre/EstreGenesis · 350 tokens

ultrasafe-crypto-reviewer

Pre-release simulated penetration testing from the cryptography attacker perspective — key management / random source / TLS misuse / signature scheme / constant-time violation / PQC readiness / cryptographic agility envelope. Triggered by Ultrasafe orchestrator (ultrasaferunfanout MCP tool) when the axis-set includes…

SoliEstre/EstreGenesis · 186 tokens

ultrasafe-methodology-compliance

Use BEFORE a publish-equivalent release (npm publish / pip upload / git push --tags to public) — Ultrasafe 8-agent fan-out 의 Methodology / Compliance attacker 시각. Test methodology gap · coverage cliff · compliance catalog (NIST 800-115 / OSSTMM / OWASP WSTG / PTES / ISO 27001:2022 / CIS v8.1) 의 16-cell 2D dispatch…

SoliEstre/EstreGenesis · 208 tokens

ultrasafe-supply-chain-auditor

Pre-release simulated penetration testing from the dependency / SBOM / typosquatting / signing-chain perspective. Invoke as Agent 3 of the Ultrasafe 8-agent fan-out (Ultrasafe.md §15.3) whenever the iteration axis-set includes usf-supply-chain, or whenever a release candidate touches dependency manifests (package.json…

SoliEstre/EstreGenesis · 228 tokens

ultrasafe-synthesizer

Pre-release security testing — retire-barrier fan-out sink. Aggregate the 7 attacker agents' findings (ai-llm / web-api / supply-chain / crypto / social-eng / methodology / threat-model) via BFT quorum 2f+1 cross-axis confirmation, diversity-enforced source independence (perspective × prompttemplatehash × seed 3-tuple…

SoliEstre/EstreGenesis · 210 tokens

ultrasafe-threat-model-lifecycle

Pre-release simulated penetration testing from the threat modeling (STRIDE/PASTA) + incident lifecycle + disclosure timing attacker perspective. Invoke as one of 8 attackers in Ultrasafe fan-out runtime when a publish-equivalent action (npm publish / pip upload / git push --tags to public / release-gate trigger) is…

SoliEstre/EstreGenesis · 199 tokens