Borrowing it
Nothing to install: this file belongs to AzureAD/microsoft-authentication-library-common-for-objc. 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/AzureAD/microsoft-authentication-library-common-for-objc/dev/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/AzureAD/microsoft-authentication-library-common-for-objcWrote 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/azuread/microsoft-authentication-library-common-for-objc/copilot-instructions)<a href="https://agentmods.dev/instructions/azuread/microsoft-authentication-library-common-for-objc/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/azuread/microsoft-authentication-library-common-for-objc/copilot-instructions.svg" alt="Measured on agentmods" 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 | $0.00798 | $0.00798 |
| Opus 5 | $0.00399 | $0.00399 |
| Sonnet 5 | $0.00160 | $0.00160 |
| Haiku 4.5 | $0.00080 | $0.00080 |
Grade A, and why
microsoft-authentication-library-common-for-objc 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 yesterday.
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 — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Copilot Instructions for IdentityCore
This repository contains IdentityCore, a shared library used by the Microsoft Authentication Library (MSAL) for iOS and macOS. It contains internal classes and is not intended for public API consumption.
High Level Details
- Project Type: Objective-C Shared Library (Internal).
- Languages: Objective-C, Python (build scripts).
- Platforms: iOS, macOS, visionOS.
- Key Frameworks: Foundation, Security.
- Versioning: Semantic Versioning.
- Branching:
mainis the active branch.devis the active development branch.
Build and Validation
To build and validate changes, use the provided Python build script. This script handles building the project and running unit tests.
Build and Test:
Run the build.py script with the appropriate target. This command performs both build and test operations by default.
# For iOS
./build.py --targets ios_library
# For macOS
./build.py --targets mac_library
# For visionOS
./build.py --targets vision_library
Note:
- The build script uses
xcodebuildunder the hood. - Ensure you have the appropriate Xcode version selected (CI uses Xcode 16.2).
- The build script requires
xcprettyby default. Ifxcprettyis not installed locally, use--no-xcprettyto bypass it. - If you encounter issues, try running with
--no-cleanto speed up subsequent builds or--show-build-settingsfor debugging. - The iOS simulator device and OS version are hardcoded in
build.py(e.g.,ios_sim_deviceandios_sim_dest). If the configured simulator is not available in your local Xcode/simulator environment, update these variables to match an available device and runtime (usexcrun simctl list devices availableto check).
Code Style
CRITICAL: Always adhere to the code style guidelines defined in .clinerules/01-Code-style-guidelines.md. This includes:
- Using dot notation for properties.
- 4-space indentation.
- Opening braces on a NEW line.
- Using
MSIDprefix classes. - Checking return values instead of error variables.
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.
- yesterday First seen · 73 lines · 798 tokens per session scan A a1e97490a474
microsoft-authentication-library-common-for-objc copilot-instructions.md is an instructions file published in the GitHub repository AzureAD/microsoft-authentication-library-common-for-objc (65 stars, last pushed yesterday), licensed MIT. It adds 798 tokens to every session, about $0.0040 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 2026-09-04.
Other instructions, from other repositories
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.