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programming

programming is a skill for Codex from code-yeongyu/lazycodex. It costs 51 tokens per session (9,785 once invoked), scanned A, original, MIT.

A programming guidance skill for Python, Rust, TypeScript, and Go work. It sets language-specific rules for typed code, modern toolchains, validation, and checks before editing files.

In plain words
What is it for?
Use it when working on .py, .pyi, .rs, .ts, .tsx, .mts, .cts, or .go files, including implementation, testing, formatting, and static analysis.
Why use it?
It gives coding tasks a consistent process and directs the assistant to the relevant language rules before making changes.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is uv run scripts/python/check-no-excuse-rules.py <changed paths>.

not rated 3.8krepo +31 changed 22d ago A scan SkillSpector: pass 51 tokens original MIT

Good fit Use it when working on .py, .pyi, .rs, .ts, .tsx, .mts, .cts, or .go files, including implementation, testing, formatting, and static analysis.

Compare 6 skills from other repositories ↓
View source ↗ code-yeongyu/lazycodex lazycodex.ai
About the project

LazyCodex is an agent harness for working on complex codebases, combining project memory, planning, execution, and completion checks inside Codex. It is for developers who want structured, repeatable assistance when handling substantial software projects. The catalogue contains the skills, hook, and MCP integration that provide its workflow inside Codex.

code-yeongyu/lazycodex · 3,782 stars · on GitHub · lazycodex.ai

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/code-yeongyu/lazycodex
agentmods
npx agentmods add skills/code-yeongyu/lazycodex/programming

Made for: 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/code-yeongyu/lazycodex/programming/github.svg)](https://agentmods.dev/skills/code-yeongyu/lazycodex/programming)
Your own site
<a href="https://agentmods.dev/skills/code-yeongyu/lazycodex/programming"><img src="https://agentmods.dev/badge/skills/code-yeongyu/lazycodex/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/code-yeongyu/lazycodex/programming"><img src="https://agentmods.dev/badge/skills/code-yeongyu/lazycodex/programming.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,785 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00051 $0.09785
Opus 5.5 $0.00020 $0.03914
Sonnet 5.5 $0.00010 $0.01957
Haiku 4.5 $0.00005 $0.00979

Measured 22d ago against content hash 3cd471c76187, 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 22d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/go/check-no-excuse-rules.sh, scripts/go/new-project.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.

plugins/omo/skills/programming/SKILL.md · 392 lines

How it starts

The opening of the file, as written. The whole thing — 392 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Programming

You are a lazy senior engineer — lazy meaning efficient, never careless. The best code is the code never written; the code you do write is type-strict, stack-first, async-correct, and architecturally honest about size.

This skill is an index. The hard per-language rules live under references/. Load the language-specific reference before writing a single line of code.

PHASE 0 — LANGUAGE GATE (RUN THIS FIRST, EVERY TIME)

DO NOT WRITE OR EDIT A SINGLE LINE OF CODE BEFORE COMPLETING THIS GATE.

  1. Identify the language from the file extension or the user's request.

  2. STOP and read the matching reference set:

    File / Language MANDATORY reading (load Read tool on every file below)
    .py, .pyi, "Python" references/python/README.md + every file under references/python/ that the README tells you to load on demand
    .rs, Cargo.toml, "Rust" references/rust/README.md + every file under references/rust/ that the README tells you to load on demand. IF the change touches unsafe, *mut, *const, MaybeUninit, FFI, unsafe impl Send/Sync, or a custom lock-free primitive: ALSO load references/rust-ub/README.md plus every file under references/rust-ub/.
    .ts, .tsx, .mts, .cts, "TypeScript" references/typescript/README.md + every file under references/typescript/ that the README tells you to load on demand
    .go, go.mod, go.sum, .golangci.yml, *.proto next to a Go module, "Go" / "Golang" references/go/README.md + every file under references/go/ that the README tells you to load on demand

  3. Only after the references are loaded, apply the shared philosophy below plus the per-language iron list from the reference.

No exceptions for "small" or "one-off" code. The whole point of the modern toolchain (uv + PEP 723, rust-script, Bun) is that disposable scripts cost nothing to write with full discipline.

Shared philosophy (all three languages)

Read the full file on GitHub · 392 lines

Files

What ships with it

60 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. 22d ago Changed · -6 lines · +2 tokens per session 3cd471c76187
  2. 1mo ago Changed · -233 tokens per session a669ebf325e7
  3. 1mo ago First seen · 398 lines · 282 tokens per session scan A 29e3a97cb403

Subscribe to this mod's changes

programming is a skill published in the GitHub repository code-yeongyu/lazycodex (3,782 stars, last pushed 3d ago), licensed MIT. It adds 51 tokens to every session and 9,785 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.

Claude CodeLanguagesaiai-agentsclaudeclicodex
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