What is generic-skill-creator?

An example skill for creating or updating a Codex skill, including its instructions, supporting files, validation, and forward testing. It uses SkillSpec, a system for planning and tracking skill execution.

Use it when building or revising a skill, its SKILL.md file, related configuration, or validation scripts. It guides planning, execution records, progress checks, and testing.

It provides a structured example for handling skill-authoring work and checking the result before release.

generic-skill-creator — Skill for Claude Code and Codex by modiqo: An example skill for creating or updating a Codex…

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/modiqo/skillspec/generic-skill-creator

Any agent

npx skills add modiqo/skillspec --skill generic-skill-creator

Clone the repo

git clone --depth 1 https://github.com/modiqo/skillspec

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/modiqo/skillspec/generic-skill-creator.svg)](https://agentmods.dev/skills/modiqo/skillspec/generic-skill-creator)

Your own site

<a href="https://agentmods.dev/skills/modiqo/skillspec/generic-skill-creator"><img src="https://agentmods.dev/badge/skills/modiqo/skillspec/generic-skill-creator.svg" alt="Measured on agentmods" height="20"></a>

Per session 150 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,073 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.

Model	Per session	Once invoked
Fable 5.1	$0.00150	$0.03073
Opus 5	$0.00075	$0.01537
Sonnet 5	$0.00030	$0.00615
Haiku 4.5	$0.00015	$0.00307

Measured 6d ago against content hash 6d96fb74e8f6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

generic-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 6d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/generate_openai_yaml.py, scripts/init_skill.py, scripts/quick_validate.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.

Origin

Copies of this mod

6 near-identical copies found in the catalogue:

anthropic-pdf — 89% identical, 22 lines differ
dev-repo-readiness — 88% identical, 26 lines differ
rote-computer — 86% identical, 26 lines differ
examples-imports — 84% identical, 23 lines differ
pdf-processing — 83% identical, 23 lines differ
local-csv-report — 81% identical, 26 lines differ

examples/generic-skill-creator/SKILL.md · 130 lines

How it starts

The opening of the file, as written. The whole thing — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Generic Skill Creator

Example SkillSpec-backed contract for creating, updating, validating, and forward-testing Codex skills without colliding with the canonical skillspec-creator skill.

Entry Gate

Before any task action, run skillspec plan ./skill.spec.yml --input='<user task>' --trace-dir "${PWD}/.skillspec/traces", preserve the printed run_dir, then run skillspec act ./skill.spec.yml --input='<user task>' --run <run_dir> --phase <phase-id>, and read the ordered phase plan plus current-route action checklist.
Until that plan and checklist are read, the only allowed actions are loading this SKILL.md, loading the colocated skill.spec.yml, and running SkillSpec navigation or decision commands for this spec.
The selected route and matched rules in the checklist override lower-level skill defaults. If a tool is forbidden, stop and report that the SkillSpec blocks it.
After each phase action, record structured progress in <run_dir>/execution.jsonl and run skillspec progress show ./skill.spec.yml --run <run_dir> before moving to the next phase.
Forbidden before the decision: create_skill_files_before_understanding_examples, run_init_skill_without_user_location_or_default, forward_test_with_leaked_expected_answer.

This skill is a thin loader for the colocated skill.spec.yml. The spec is the source of truth for routes, rules, dependencies, imports, resources, recipes, tests, and trace requirements. Do not treat the spec as background prose; treat it as the execution contract for this task.

Runtime Contract

Load ./skill.spec.yml from this skill folder before taking task actions.
When the skillspec CLI is available and the spec shape is unfamiliar, run skillspec sensemake ./skill.spec.yml --view index to learn the section roles, counts, query handles, and navigation grammar without dumping the full YAML.

Then create the ordered phase plan and current-route action checklist:

skillspec plan ./skill.spec.yml --input='<user task>' --trace-dir "${PWD}/.skillspec/traces"
skillspec act ./skill.spec.yml --input='<user task>' --run <run_dir> --phase <phase-id>

Read the full file on GitHub · 130 lines

Files

What ships with it

23 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.

6d ago First seen · 130 lines · 150 tokens per session scan A 6d96fb74e8f6

Subscribe to this mod's changes

generic-skill-creator is a skill published in the GitHub repository modiqo/skillspec (739 stars, last pushed 27d ago), licensed Apache-2.0. It adds 150 tokens to every session and 3,073 once invoked, about $0.0007 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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