ai-coding-agents-token-optimization: Instructions file for GitHub Copilot

.github/instructions/ponytail.instructions.md

ai-coding-agents-token-optimization ponytail.instructions.md is an instructions file for GitHub Copilot from hkaanturgut/ai-coding-agents-token-optimization. It costs 395 tokens per session, scanned A, original, no licence file.

Instructies voor efficiënter werken met codingsagents door onnodige code en tekst te vermijden.

In plain words
What is it for?
Het helpt een agent om bestaande code te hergebruiken, gericht te werken en alleen noodzakelijke wijzigingen te maken.
Why use it?
Zo blijft het werk compact en worden tijd en tokens niet besteed aan oplossingen die niet nodig zijn.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is hkaanturgut/ai-coding-agents-token-optimization's own configuration. It tells GitHub Copilot how to work on ai-coding-agents-token-optimization itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ai-coding-agents-token-optimization configures →

Reuse

Borrowing it

Nothing to install: this file belongs to hkaanturgut/ai-coding-agents-token-optimization. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/hkaanturgut/ai-coding-agents-token-optimization/main/.github/instructions/ponytail.instructions.md
Clone the repo
git clone --depth 1 https://github.com/hkaanturgut/ai-coding-agents-token-optimization

Made for: GitHub Copilot.

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-token-optimization ponytail.instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/hkaanturgut/ai-coding-agents-token-optimization/ponytail/github.svg)](https://agentmods.dev/instructions/hkaanturgut/ai-coding-agents-token-optimization/ponytail)
Your own site
<a href="https://agentmods.dev/instructions/hkaanturgut/ai-coding-agents-token-optimization/ponytail"><img src="https://agentmods.dev/badge/instructions/hkaanturgut/ai-coding-agents-token-optimization/ponytail/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-token-optimization ponytail.instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/hkaanturgut/ai-coding-agents-token-optimization/ponytail"><img src="https://agentmods.dev/badge/instructions/hkaanturgut/ai-coding-agents-token-optimization/ponytail.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 395 This file is loaded in full into every session.
When invoked 395 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00395 $0.00395
Opus 5.5 $0.00158 $0.00158
Sonnet 5.5 $0.00079 $0.00079
Haiku 4.5 $0.00040 $0.00040

Measured 2mo ago against content hash c2319cc5bee1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ai-coding-agents-token-optimization ponytail.instructions.md 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 2mo 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/instructions/ponytail.instructions.md · 41 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 41 lines · 395 tokens per session scan A c2319cc5bee1

Subscribe to this mod's changes

ai-coding-agents-token-optimization ponytail.instructions.md is an instructions file published in the GitHub repository hkaanturgut/ai-coding-agents-token-optimization (7 stars, last pushed 2mo ago), with no licence file. It adds 395 tokens to every session, about $0.0016 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.

Related

ai-coding-agents-token-optimization ponytail.instructions.md compared with instructions from other repositories

ai-coding-agents-token-optimization ponytail.instructions.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
ai-coding-agents-token-optimization ponytail.instructions.mdhkaanturgut/ai-coding-agents-token-optimizationInstructions file72mo agononeA395GitHub Copilot
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149kyesterdayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode