programming

programming is a skill for Claude Code, Codex from i9wa4/dotfiles. It costs 61 tokens per session (480 once invoked), scanned A, original, MIT.

General guidance for writing, debugging, and checking Bash, Python, Nix, Terraform, and Markdown, including TDD. TDD means writing a failing test before the code that makes it pass.

In plain words
What is it for?
Use it for scripts, Python utilities and notebooks, Nix packages, Terraform with Checkov scans, Markdown, test-first changes, and root-cause debugging.
Why use it?
It provides a consistent way to investigate causes, keep changes organized, and run focused quality, security, or compliance checks.

Skill for Claude CodeCodex

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

Good fit Use it for scripts, Python utilities and notebooks, Nix packages, Terraform with Checkov scans, Markdown, test-first changes, and root-cause debugging.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/i9wa4/dotfiles/programming
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 i9wa4/dotfiles --skill programming
Clone the repo
git clone --depth 1 https://github.com/i9wa4/dotfiles

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 programming

README.md
[![agentmods](https://agentmods.dev/badge/skills/i9wa4/dotfiles/programming/github.svg)](https://agentmods.dev/skills/i9wa4/dotfiles/programming)
Your own site
<a href="https://agentmods.dev/skills/i9wa4/dotfiles/programming"><img src="https://agentmods.dev/badge/skills/i9wa4/dotfiles/programming/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for programming

Your own site · 80×15
<a href="https://agentmods.dev/skills/i9wa4/dotfiles/programming"><img src="https://agentmods.dev/badge/skills/i9wa4/dotfiles/programming.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 480 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 $0.00061 $0.00480
Opus 5.5 $0.00024 $0.00192
Sonnet 5.5 $0.00012 $0.00096
Haiku 4.5 $0.00006 $0.00048

Measured 1mo ago against content hash 8f4c21c659ca, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

programming 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 1mo 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.

skills/programming/SKILL.md · 55 lines

What it actually says

Programming

Owns repo-local implementation guidance and debugging. Prefer a narrower domain skill when one exists.

1. Scope

  • Bash scripts and shell command design.
  • Python utility edits, local execution, and general Python quality: type hints, pytest, uv/ruff/pyright tooling, Jupyter notebooks.
  • Nix package workflow, especially fetcher hash acquisition.
  • Terraform infrastructure code development, plan review, and Checkov security/compliance scanning.
  • Markdown authoring and formatting rules.
  • Red-Green-Refactor and Tidy First implementation loops.
  • Systematic debugging: reproducers, working-pattern comparison, root cause.

Out of scope:

  • Agent harness runtime, Home Manager agent config, hooks, postman routing, or installed agent outputs; use dotfiles.
  • GitHub issue, PR, review, or public-surface mechanics; use dev-platform-workflow.
  • Data-platform or diagramming workflows; use their target skills.

2. Workflow

  1. Inspect relevant files, repo conventions, and git status.
  2. Select the focused reference below before changing files.
  3. Keep structural and behavioral edits separate when practical.
  4. Run the fastest focused check during iteration, then the nearest repo validation surface before reporting success.
  5. Report changed files, verification, residual Waza findings, and remaining risk.

3. References

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. 1mo ago Changed · +1 lines 8f4c21c659ca
  2. 2mo ago First seen · 54 lines · 61 tokens per session scan A f0d5b485d99c

Subscribe to this mod's changes

programming is a skill published in the GitHub repository i9wa4/dotfiles (12 stars, last pushed today), licensed MIT. It adds 61 tokens to every session and 480 once invoked, about $0.0002 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 2026-08-30.