agent-file-specs

agent-file-specs is a skill for Claude Code, Codex from JBurlison/WoWAddonAPIAgents. It costs 88 tokens per session (1,110 once invoked), scanned A, original, MIT.

A reference skill containing specifications for AI coding assistant customization files, including agents, skills, prompts, and instructions. It covers file formats, required fields, supported attributes, validation rules, examples, and provider locations.

In plain words
What is it for?
Looking up file formats, required fields, provider-specific locations, settings, validation rules, and examples for coding-assistant customizations.
Why use it?
It removes guesswork when creating or checking customization files. The references help ensure files use the right structure and are placed where the chosen provider expects them.

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/jburlison/wowaddonapiagents/agent-file-specs
Any agent
npx skills add JBurlison/WoWAddonAPIAgents --skill agent-file-specs
Clone the repo
git clone --depth 1 https://github.com/JBurlison/WoWAddonAPIAgents

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 agent-file-specs

README.md
[![agentmods](https://agentmods.dev/badge/skills/jburlison/wowaddonapiagents/agent-file-specs.svg)](https://agentmods.dev/skills/jburlison/wowaddonapiagents/agent-file-specs)
Your own site
<a href="https://agentmods.dev/skills/jburlison/wowaddonapiagents/agent-file-specs"><img src="https://agentmods.dev/badge/skills/jburlison/wowaddonapiagents/agent-file-specs.svg" alt="Measured on agentmods" height="20"></a>
Per session 88 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,110 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 $0.00088 $0.01110
Opus 5 $0.00044 $0.00555
Sonnet 5 $0.00018 $0.00222
Haiku 4.5 $0.00009 $0.00111

Measured 5d ago against content hash 69eb4593d156, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agent-file-specs 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 5d 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.

.github/skills/agent-file-specs/SKILL.md · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI Coding Assistant Customization File Specifications

This skill provides the authoritative, up-to-date specifications for all AI coding assistant customization file types. Each file type has its own dedicated reference document with complete attribute tables, validation rules, examples, and best practices.

Standard: These specs align with the Agent Skills open standard and the VS Code Copilot customization documentation.

How to Use This Skill

  1. Read the Quick Reference below to identify the file type you need.
  2. Follow the link to the dedicated reference document for full details.
  3. Use the File Locations reference when you need to know where files go for a specific provider.
  4. Use the Settings reference for VS Code configuration.

Important: Detailed specifications live in the references/ folder — not in this file. This keeps the main skill file lightweight for efficient context loading per the progressive disclosure model.


Quick Reference

Type Extension Purpose Reference
Agent .agent.md / .md Custom AI personas with specialized behaviors, tool restrictions, and handoff workflows AGENTS.md
Skill SKILL.md (directory-based) Reusable, portable capabilities with scripts and resources — follows the Agent Skills open standard SKILLS.md
Prompt .prompt.md Reusable prompt templates invoked as slash commands PROMPTS.md
Instruction .instructions.md Contextual guidance applied automatically by file type or description INSTRUCTIONS.md
File Locations Provider folder mapping, directory structure, naming conventions FILE-LOCATIONS.md
VS Code Settings Settings that control customization file discovery and behavior SETTINGS.md

Read the full file on GitHub · 98 lines

Files

What ships with it

6 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. 5d ago First seen · 98 lines · 88 tokens per session scan A 69eb4593d156

Subscribe to this mod's changes

agent-file-specs is a skill published in the GitHub repository JBurlison/WoWAddonAPIAgents (43 stars, last pushed 6mo ago), licensed MIT. It adds 88 tokens to every session and 1,110 once invoked, about $0.0004 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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