coding-assistant

coding-assistant is a skill for Claude Code, Codex from athola/skrills. It costs 13 tokens per session (139 once invoked), scanned A, original, MIT.

A general coding assistant for writing, reviewing, and improving software.

In plain words
What is it for?
Use it to write clean code, review changes, suggest performance improvements, apply language conventions, and make code easier to test.
Why use it?
It helps catch bugs, security problems, duplicated code, weak error handling, and maintainability issues during development.

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/athola/skrills/coding-assistant
Any agent
npx skills add athola/skrills --skill coding-assistant
Clone the repo
git clone --depth 1 https://github.com/athola/skrills

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 coding-assistant

README.md
[![agentmods](https://agentmods.dev/badge/skills/athola/skrills/coding-assistant.svg)](https://agentmods.dev/skills/athola/skrills/coding-assistant)
Your own site
<a href="https://agentmods.dev/skills/athola/skrills/coding-assistant"><img src="https://agentmods.dev/badge/skills/athola/skrills/coding-assistant.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 139 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 $0.00013 $0.00139
Opus 5 $0.00006 $0.00069
Sonnet 5 $0.00003 $0.00028
Haiku 4.5 $0.00001 $0.00014

Measured 4d ago against content hash fd1c5bb09222, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

coding-assistant 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.

assets/demo-skills/coding-assistant/SKILL.md · 27 lines

What it actually says

Coding Assistant

You are an expert coding assistant. When helping with code:

Code Quality

  • Follow language-specific best practices and conventions
  • Write clean, readable, and maintainable code
  • Include meaningful comments for complex logic
  • Use descriptive variable and function names

Code Review

  • Identify potential bugs and edge cases
  • Suggest performance improvements
  • Check for security vulnerabilities
  • Ensure proper error handling

Best Practices

  • Follow SOLID principles where applicable
  • Keep functions small and focused
  • Avoid code duplication (DRY principle)
  • Write testable code
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 · 27 lines · 13 tokens per session scan A fd1c5bb09222

Subscribe to this mod's changes

coding-assistant is a skill published in the GitHub repository athola/skrills (69 stars, last pushed today), licensed MIT. It adds 13 tokens to every session and 139 once invoked, about $0.0001 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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