new-python-project

new-python-project is a skill for Claude Code, Codex from smorinlabs/py-launch-blueprint. It costs 49 tokens per session (3,886 once invoked), scanned A, original, MIT.

A setup skill for starting a new Python repository, package, command-line tool, or script from the py-launch-blueprint template. It covers project creation, rebranding, checks, and optionally publishing the initial project to GitHub.

In plain words
What is it for?
Use it when creating a fresh Python project from this template. It is intended for new repositories, not for modifying an existing project.
Why use it?
It guides the setup decisions and catches common problems such as authentication issues or invalid package names before they interrupt the project start.

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/smorinlabs/py-launch-blueprint/new-python-project
Any agent
npx skills add smorinlabs/py-launch-blueprint --skill new-python-project
Clone the repo
git clone --depth 1 https://github.com/smorinlabs/py-launch-blueprint

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 new-python-project

README.md
[![agentmods](https://agentmods.dev/badge/skills/smorinlabs/py-launch-blueprint/new-python-project.svg)](https://agentmods.dev/skills/smorinlabs/py-launch-blueprint/new-python-project)
Your own site
<a href="https://agentmods.dev/skills/smorinlabs/py-launch-blueprint/new-python-project"><img src="https://agentmods.dev/badge/skills/smorinlabs/py-launch-blueprint/new-python-project.svg" alt="Measured on agentmods" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,886 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 $0.00049 $0.03886
Opus 5 $0.00024 $0.01943
Sonnet 5 $0.00010 $0.00777
Haiku 4.5 $0.00005 $0.00389

Measured 4d ago against content hash 8b358c94fcaa, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

new-python-project 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.

.claude/skills/new-python-project/SKILL.md · 376 lines

How it starts

The opening of the file, as written. The whole thing — 376 lines — stays where its author put it; the contents beside it link to each section on GitHub.

new-python-project

Bootstrap a fresh Python project from smorinlabs/py-launch-blueprint. This skill orchestrates the entire path from "I want a new project" to "the repo exists on GitHub, is rebranded with the user's identity, and the initial commit is pushed" — typically 60–90 seconds end-to-end.

Why a skill rather than just commands

The bootstrap is small only after you've done it ten times. The first time, a user hits a half-dozen "now what?" moments: gh not authed, package name not a valid Python identifier, post-init failing because the remote doesn't exist yet, etc. This skill encodes the right sequence with preconditions checked at the right time, so each "now what?" becomes a specific actionable prompt — never a surprise.

When to invoke vs. when not to

Invoke when: the user wants a brand new project derived from this template. They don't need to say "py-launch-blueprint" explicitly — phrases like "new Python project from this", "scaffold a project", "start a fresh project using this template" all qualify.

Don't invoke when: the user is inside an existing project (already rebranded, carrying a press/press-receipt.toml) and just wants to modify something — that's docs/POST_INIT.md checklist territory, not this skill.

The runbook

Follow these steps in order. At each step the goal is user clarity, not mechanical execution — explain what's about to happen, especially before anything that creates resources on GitHub or writes to disk.

Step 0 — Confirm the user wants this template (filter step)

This skill triggers broadly on any Python project creation intent. Before doing ANY other work, ask the user whether they want this opinionated bootstrap. The skill is safe to enter on a wide net of phrasings BECAUSE it asks before acting — that's the whole filter-after-trigger contract.

Ask exactly one question, with this shape (adapt phrasing to the conversation; do not invent extra options):

"I can bootstrap this as a full py-launch-blueprint project — uv, ruff, lefthook, CI workflows, release-please, OIDC publishing, the whole production-quality setup. Or set it up minimally (just uv init, no opinions). The template adds significant tooling; great for projects you'll maintain long-term, overkill for quick throwaway scripts.

Use the py-launch-blueprint template? [Y/n]"

Read the full file on GitHub · 376 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 · 376 lines · 49 tokens per session scan A 8b358c94fcaa

Subscribe to this mod's changes

new-python-project is a skill published in the GitHub repository smorinlabs/py-launch-blueprint (24 stars, last pushed 2d ago), licensed MIT. It adds 49 tokens to every session and 3,886 once invoked, about $0.0002 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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