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Cortex: Instructions file for GitHub Copilot

.github/copilot-instructions.md

Cortex copilot-instructions.md is an instructions file for GitHub Copilot from jacksonjp0311-gif/Cortex. It costs 166 tokens per session, scanned A, original, MIT.

A set of instructions for Cortex, a software system that analyses and coordinates connected project components. It defines its authority limits, required research documents, operating rules, and main modules.

In plain words
What is it for?
Use it when working on Cortex’s research, diagnostics, promotion, repair, federation, or host-coordination code.
Why use it?
It prevents the system from treating diagnostic scores as permission to change code or promote components, and sets rules for handling multiple hosts.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file. Also seen: mentions AGENTS.md.

This is jacksonjp0311-gif/Cortex's own configuration. It tells GitHub Copilot how to work on Cortex 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 Cortex configures →

not rated 21repo changed 2mo ago A scan 166 tokens original MIT
View source ↗ jacksonjp0311-gif/Cortex
Reuse

Borrowing it

Nothing to install: this file belongs to jacksonjp0311-gif/Cortex. 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/jacksonjp0311-gif/Cortex/main/.github/copilot-instructions.md
Clone the repo
git clone --depth 1 https://github.com/jacksonjp0311-gif/Cortex

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 Cortex copilot-instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/jacksonjp0311-gif/cortex/copilot-instructions/github.svg)](https://agentmods.dev/instructions/jacksonjp0311-gif/cortex/copilot-instructions)
Your own site
<a href="https://agentmods.dev/instructions/jacksonjp0311-gif/cortex/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/jacksonjp0311-gif/cortex/copilot-instructions/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 Cortex copilot-instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/jacksonjp0311-gif/cortex/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/jacksonjp0311-gif/cortex/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 166 This file is loaded in full into every session.
When invoked 166 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 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 $0.00166 $0.00166
Opus 5.5 $0.00066 $0.00066
Sonnet 5.5 $0.00033 $0.00033
Haiku 4.5 $0.00017 $0.00017

Measured 2mo ago against content hash 0a9d53bfaf26, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Cortex copilot-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/copilot-instructions.md · 13 lines

What it actually says

Cortex coding-agent orientation

Read docs/AGENT_START.md, then the knowledge map and the task-specific route. STATUS owns reviewed current claims; SYSTEM_MAP owns the bird's-eye architecture. Foundational geometry is not the current runtime index.

Follow applicable AGENTS.md; do not alter its managed block. Host/human permission controls operational effect. Memory, confidence, measurements and packets do not grant authority. Preserve historical receipts and failed/null results. No new GSO model calls while the complete observation path is HELD. Verify focused tests and run python scripts/docs_check.py for documentation changes.

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 Changed · -14 lines · -114 tokens per session 0a9d53bfaf26
  2. 2mo ago First seen · 27 lines · 280 tokens per session scan A f24655cd41dd

Subscribe to this mod's changes

Cortex copilot-instructions.md is an instructions file published in the GitHub repository jacksonjp0311-gif/Cortex (21 stars, last pushed 10d ago), licensed MIT. It adds 166 tokens to every session, about $0.0007 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 2026-08-30.

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