ai-coding-agents

ai-coding-agents is a skill for Claude Code, Codex from vasilyu1983/AI-Agents-public. It costs 39 tokens per session (9,394 once invoked), scanned A, original, MIT.

A guide for defining coding agents on Claude Code, Codex, or the Agent SDK. A coding agent is an AI worker given a specific role, instructions, tools, or teamwork responsibilities.

In plain words
What is it for?
Use it to design review, testing, refactoring, single-purpose, or coordinated multi-agent coding workers on supported platforms.
Why use it?
It separates creating an agent on an existing platform from building the underlying agent runtime itself. This helps choose the right design path and avoid treating a role definition like a whole execution system.

Skill for Claude CodeCodex

Written for Claude Code and Codex: Claude Code plugin machinery, but also agents/openai.yaml present. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

Good fit Use it to design review, testing, refactoring, single-purpose, or coordinated multi-agent coding workers on supported platforms.

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Install with agentmods
npx agentmods add skills/vasilyu1983/ai-agents-public/ai-coding-agents
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 vasilyu1983/AI-Agents-public --skill ai-coding-agents
Clone the repo
git clone --depth 1 https://github.com/vasilyu1983/AI-Agents-public

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 ai-coding-agents

README.md
[![agentmods](https://agentmods.dev/badge/skills/vasilyu1983/ai-agents-public/ai-coding-agents/github.svg)](https://agentmods.dev/skills/vasilyu1983/ai-agents-public/ai-coding-agents)
Your own site
<a href="https://agentmods.dev/skills/vasilyu1983/ai-agents-public/ai-coding-agents"><img src="https://agentmods.dev/badge/skills/vasilyu1983/ai-agents-public/ai-coding-agents/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 ai-coding-agents

Your own site · 80×15
<a href="https://agentmods.dev/skills/vasilyu1983/ai-agents-public/ai-coding-agents"><img src="https://agentmods.dev/badge/skills/vasilyu1983/ai-agents-public/ai-coding-agents.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,394 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Rogue Agent · line 265
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 $0.00039 $0.09394
Opus 5 $0.00019 $0.04697
Sonnet 5 $0.00008 $0.01879
Haiku 4.5 $0.00004 $0.00939

Measured 9d ago against content hash e99a18d4c4a4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

ai-coding-agents 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 9d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (assets/templates/sdk-agent-py.py, assets/templates/sdk-agent-ts.ts, scripts/smoke_test.sh), 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.

frameworks/shared-skills/skills/ai-coding-agents/SKILL.md · 442 lines

How it starts

The opening of the file, as written. The whole thing — 442 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI Coding Agents — Creation Hub

Use this skill to go from a coding agent idea to a working agent definition, whether a single-purpose agent or a coordinated multi-agent coding team.

This skill owns the coding-domain-specific creation workflow, templates, and patterns. For agent architecture decisions and build-vs-not gates, start with ../ai-agents/SKILL.md.

Two Different Tracks

This skill (and its siblings prefixed ai-coding-agents-*) split into two tracks with different audiences. Pick the right one before going deeper.

Track A — Create an agent on an existing platform (this skill). Use this umbrella when the platform exists (Claude Code, Codex, or Agent SDK) and you need to define an agent on top of it: frontmatter, tools, archetype, multi-agent coordination. This is the common case.

Track B — Build a coding-agent runtime from scratch (the 14 sibling skills). Use the dedicated curriculum when you are building the runtime itself — the thing that loads agents, sandboxes execution, routes tool calls, manages sessions. Each skill captures known traps, patterns, and anti-patterns for one subsystem:

Concern Skills
Runtime architecture ai-coding-agents-command-runtime, ai-coding-agents-provider-runtime, ai-coding-agents-terminal-ui
Execution & safety ai-coding-agents-execution-sandbox, ai-coding-agents-permissions, ai-coding-agents-settings-policy
State & lifecycle ai-coding-agents-sessions, ai-coding-agents-tasks, ai-coding-agents-remote-runtime
Extensibility ai-coding-agents-plugins, ai-coding-agents-tools
Delivery ai-coding-agents-release-distribution, ai-coding-agents-observability-evals

Read the full file on GitHub · 442 lines

Files

What ships with it

39 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. 9d ago First seen · 442 lines · 39 tokens per session scan A e99a18d4c4a4

Subscribe to this mod's changes

ai-coding-agents is a skill published in the GitHub repository vasilyu1983/AI-Agents-public (87 stars, last pushed 7d ago), licensed MIT. It adds 39 tokens to every session and 9,394 once invoked, about $0.0002 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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