coding

coding is a skill for Claude Code, Codex from liustack/vibemaster. It costs 145 tokens per session (2,028 once invoked), scanned A, original, MIT.

A software-development guide that covers planning, testing, refactoring, and checking current sources. TDD, or test-driven development, means writing a failing test first, making it pass, then improving the code.

In plain words
What is it for?
It is for planning coding work, applying the appropriate test-and-refactor process, and checking up-to-date documentation before answering implementation questions.
Why use it?
It helps keep new code and known bug fixes verified while avoiding unnecessary tests for changes that only reorganize code.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit It is for planning coding work, applying the appropriate test-and-refactor process, and checking up-to-date documentation before answering implementation questions.

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

Made for: Claude Code, Codex.

Its marketplace also offers this one on its own, as the plugin coding — /plugin install coding after adding the marketplace above.

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 coding

README.md
[![agentmods](https://agentmods.dev/badge/skills/liustack/vibemaster/coding/github.svg)](https://agentmods.dev/skills/liustack/vibemaster/coding)
Your own site
<a href="https://agentmods.dev/skills/liustack/vibemaster/coding"><img src="https://agentmods.dev/badge/skills/liustack/vibemaster/coding/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 coding

Your own site · 80×15
<a href="https://agentmods.dev/skills/liustack/vibemaster/coding"><img src="https://agentmods.dev/badge/skills/liustack/vibemaster/coding.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 145 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,028 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 $0.00145 $0.02028
Opus 5.5 $0.00058 $0.00811
Sonnet 5.5 $0.00029 $0.00406
Haiku 4.5 $0.00015 $0.00203

Measured 1mo ago against content hash 5fac6396ebc3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

coding 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/coding/SKILL.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

coding: plan, then the right loop

The bar for every line of code written here is current best practice: what is recommended and adopted today, not just an answer that runs. "It runs" and "this is how you should do it today" are different claims, and only meeting the first is how code ships resting on yesterday's idiom.

Every writing path starts with a plan, sized to stakes. A trivial change plans in one sentence, in your head. A design-level change plans in .issues/. When shaping is installed, it is the planner for those: hand the unsettled requirement there, come back with the spec, and skip straight to red. Without it, plan inline. The plan itself may or may not land on disk, the stakes decide. Planning includes verification: version-sensitive practice (API, CLI, config, idioms) gets checked against an authoritative source before use, never written from memory. Official docs and the repo's own conventions outrank blog posts and recall.

Dispatch

Request Path
New behaviour, or a bug whose cause is known Failure list → red → green → refactor
Pure refactor Prove the baseline green → refactor → green again. No manufactured red
"How should I write this now" Verify against current sources → answer
Anomaly with unknown cause Not this skill. dig finds the cause first

Verification, the judgment not the reflex

The bar applies to every line of code. What varies is where memory can be trusted to meet it: actively verify on version-sensitive ground (a library's API surface, CLI flags, config schemas, anything deprecated-or-not, any question that contains "best practice"), because that is where confident recall goes stale first. Skip verifying stable knowledge (algorithms, settled syntax), facts sitting in the project (read them), and what the user already specified (use it).

Search freely, and often first: it is frequently the fastest move. The source order below is about which answer wins when they conflict, not about earning the right to search. The project itself outranks everything, installed source, lockfile and changelog are the exact version in effect. Then official docs, version-matched to what is installed. Then the open web, read with discipline: recency and version beat search ranking, primary sources beat confident blogs, cross-check before committing, and never phrase the query to confirm what you already believe. When practices conflict, battle-tested survival beats benchmark results beats claims. When there is a lot to verify, send a background subagent rather than skipping.

Read the full file on GitHub · 88 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. 1mo ago First seen · 88 lines · 145 tokens per session scan A 5fac6396ebc3

Subscribe to this mod's changes

coding is a skill published in the GitHub repository liustack/vibemaster (13 stars, last pushed 2mo ago), licensed MIT. It adds 145 tokens to every session and 2,028 once invoked, about $0.0006 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 2026-08-31.