Borrowing it
Nothing to install: this file belongs to Mehtrick/bjoern. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Mehtrick/bjoern/master/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/Mehtrick/bjoernWrote 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.
[](https://agentmods.dev/instructions/mehtrick/bjoern/copilot-instructions)<a href="https://agentmods.dev/instructions/mehtrick/bjoern/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/mehtrick/bjoern/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.
<a href="https://agentmods.dev/instructions/mehtrick/bjoern/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/mehtrick/bjoern/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.02077 | $0.02077 |
| Opus 5.5 | $0.00831 | $0.00831 |
| Sonnet 5.5 | $0.00415 | $0.00415 |
| Haiku 4.5 | $0.00208 | $0.00208 |
Grade A, and why
bjoern 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 211 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Copilot Instructions for Bjoern
Project Overview
Bjoern is a Behavior-driven Java-based One-hundred and ten percent Efficient Readable Notation - a universal BDD test generator.
Main Purpose: Generation of Java test classes from BDD specification files (.zgr format) to ensure synchronization between specification and code.
Technology Stack
- Language: Java (JDK 8+)
- Build System: Gradle 8.4+
- Plugin Type: Gradle Plugin
- Test Framework: JUnit 4 & JUnit 5
- Publication: Gradle Plugin Portal & Maven Central
Key Dependencies
com.squareup:javapoet:1.13.0- Code generationorg.freemarker:freemarker:2.3.32- Template enginecom.fasterxml.jackson.dataformat:jackson-dataformat-yaml:2.16.1- YAML parsingorg.apache.commons:commons-lang3:3.18.0,commons-io:commons-io:2.15.1,commons-text:1.11.0- Utilitiesorg.slf4j:slf4j-simple:2.0.12- Loggingorg.assertj:assertj-core:3.25.3- Assertions (Test)
Project Structure
src/main/java/de/mehtrick/bjoern/
├── base/ # Base classes for all generators
│ ├── AbstractBjoernGenerator.java # Abstract base class
│ ├── BjoernGeneratorConfig.java # Configuration model
│ └── *Exception.java # Custom exceptions
├── generator/ # Code generation engine
│ ├── BjoernCodeGenerator.java # Main generator
│ └── BjoernCodeGeneratorApplication.java # CLI application
├── gradle/ # Gradle plugin integration
│ ├── BjoernPlugin.java # Plugin entry point
│ ├── BjoernGeneratorTask.java # Gradle task for code generation
│ ├── BjoernDocGeneratorTask.java # Gradle task for documentation
│ └── BjoernGeneratorExtension.java # Gradle extension for configuration
├── parser/ # YAML parser and validation
│ ├── BjoernParser.java # Parser interface
│ ├── BjoernTextParser.java # Text parser implementation
│ ├── modell/ # Data models for specs
│ ├── reader/ # File reader
│ ├── replacer/ # Token replacement
│ └── validator/ # Validation
└── doc/ # Documentation generator
├── BjoernDocGenerator.java # Doc generation engine
└── BjoernDocGeneratorConfig.java # Doc configuration
src/main/resources/
└── asciidoc.ftlh # Freemarker template for AsciiDoc documentation
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.
- 1mo ago First seen · 211 lines · 2,077 tokens per session scan A 8815d037c940
bjoern copilot-instructions.md is an instructions file published in the GitHub repository Mehtrick/bjoern (4 stars, last pushed 1mo ago), licensed MIT. It adds 2,077 tokens to every session, about $0.0083 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.
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