generating-python-installer

generating-python-installer is a skill for Claude Code, Codex from sehoon787/my-codex. It costs 98 tokens per session (8,485 once invoked), scanned A, original, MIT.

A Windows packaging workflow for turning an advanced Python application into a slim installer. It uses Nuitka to compile Python code and Inno Setup to build the installer package.

In plain words
What is it for?
Use it to optimize Python builds for size and startup time, inspect included DLL files, and package them as Windows installers.
Why use it?
It addresses large application folders, slow startup, unnecessary files, and incomplete Windows installation or removal details. It is not intended for basic script-to-executable conversion.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to optimize Python builds for size and startup time, inspect included DLL files, and package them as Windows installers.

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Install with agentmods
npx agentmods add skills/sehoon787/my-codex/generating-python-installer
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.

Any agent
npx skills add sehoon787/my-codex --skill generating-python-installer
Clone the repo
git clone --depth 1 https://github.com/sehoon787/my-codex

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.

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README.md
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Your own site · 80×15
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Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,485 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00098 $0.08485
Opus 5.5 $0.00039 $0.03394
Sonnet 5 $0.00020 $0.01697
Haiku 4.5 $0.00010 $0.00848

Measured 7d ago against content hash f342d99aacae, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-28, from the pricing page.

Security

Grade A, and why

generating-python-installer 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 7d 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-overrides/generating-python-installer/SKILL.md · 847 lines

How it starts

The opening of the file, as written. The whole thing — 847 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Generating Python Installer (Commercial-Grade)

You are a Python commercial deployment expert. Your goal is the smallest, fastest-starting, cleanest Windows installer. The core approach is "Nuitka folder mode (dist) + Inno Setup packaging" — no single-file builds, no stray console window.

When to Activate

Activate when the user explicitly asks for advanced Python packaging or size/startup optimization on Windows:

  • Nuitka extreme / commercial-grade compilation, smallest-size or fastest-startup builds
  • dist folder slimming, DLL footprint analysis, 32-bit vs 64-bit size tradeoffs
  • Inno Setup packaging with full metadata and a clean, residue-free uninstall

This skill targets advanced size/startup optimization — not basic one-file "script to exe" conversion.

How It Works

  1. Confirm build parameters — app name, version, publisher, exe name, source/output dirs, icon. Never auto-fill; ask the user.
  2. Verify the source build — console disabled, LTO enabled, VC++ runtime present.
  3. Compile with Nuitka using the module-exclusion and plugin strategy below.
  4. Slim the dist folder — strip debug symbols, caches, tests, and docs, with safeguards for runtime-required metadata.
  5. Analyze DLLs to find and trim the largest dependencies.
  6. Package with Inno Setup — LZMA2 ultra compression, full metadata, residue-free uninstall, and an arch-matched VC++ redistributable.

Examples

  • A request in any language to package a PySide2 project as the smallest commercial installer with Nuitka → run the full workflow: recommend 32-bit, exclude WebEngine/3D/Charts, slim dist, and package with Inno Setup.
  • A request in any language to reduce a 400 MB executable by half → analyze DLLs, switch to opencv-python-headless, remove opengl32sw, and apply dist slimming.
  • A report in any language that the app does not start on a clean system after installation → ensure the matching-architecture VC++ redistributable is bundled in the Inno Setup script.

Read the full file on GitHub · 847 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. 7d ago First seen · 847 lines · 98 tokens per session scan A f342d99aacae

Subscribe to this mod's changes

generating-python-installer is a skill published in the GitHub repository sehoon787/my-codex (29 stars, last pushed 3d ago), licensed MIT. It adds 98 tokens to every session and 8,485 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-09-21.