kit-copilot-create-prompt

A workflow for creating a Copilot prompt file, a Markdown file with optional frontmatter that acts as a reusable task shortcut in VS Code. It structures the prompt and gathers the context it needs.

In plain words
What is it for?
Use it when creating, scaffolding, or setting up a new .prompt.md file with the expected frontmatter, task instructions, and context-gathering approach.
Why use it?
It helps avoid confusing a prompt file with a custom agent or an Agent Skill: a prompt defines what task to perform, while those other files define a role or reusable capability.

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/ikcode-dev/copilot-kit/kit-copilot-create-prompt
Any agent
npx skills add ikcode-dev/copilot-kit --skill kit-copilot-create-prompt
Clone the repo
git clone --depth 1 https://github.com/ikcode-dev/copilot-kit

Made for: Claude Code, Codex.

Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,564 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 $0.00063 $0.03564
Opus 5 $0.00032 $0.01782
Sonnet 5 $0.00013 $0.00713
Haiku 4.5 $0.00006 $0.00356

Measured 2d ago against content hash 4f1fba0bdb5d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

kit-copilot-create-prompt 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 2d 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/kit-copilot-create-prompt/SKILL.md · 301 lines

How it starts

The opening of the file, as written. The whole thing — 301 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create a Copilot Prompt File

What This Skill Does

Creates a properly structured Copilot prompt file (.prompt.md) for VS Code following the prompt files documentation. The generated prompt defines a specific task — a reusable workflow template for Copilot chat and related prompt surfaces.

Prompt files are the simplest customization mechanism: a Markdown file with optional YAML frontmatter that acts as a task shortcut. They're ideal for one-shot workflows that don't require bundled resources, scripts, or cross-platform portability.

Key Concepts: Prompt vs Agent vs Skill vs Instructions

Understanding the separation of concerns is critical for creating effective prompts. Each customization mechanism has a distinct purpose:

Component Defines Analogy File Type
Prompt File WHAT specific task to perform A work order or task assignment .prompt.md
Custom Agent WHO the AI is and HOW it behaves The employee's role, personality, and work style .agent.md
Agent Skill Reusable CAPABILITY or multi-step workflow A specialized training module the employee can use SKILL.md in a skill directory
Custom Instructions WHERE — project context and standards The company handbook .instructions.md

Read the full file on GitHub · 301 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. 2d ago First seen · 301 lines · 63 tokens per session scan A 4f1fba0bdb5d

Subscribe to this mod's changes

kit-copilot-create-prompt is a skill published in the GitHub repository ikcode-dev/copilot-kit (29 stars, last pushed 5mo ago), licensed MIT. It adds 63 tokens to every session and 3,564 once invoked, about $0.0003 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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