Borrowing it
Nothing to install: this file belongs to UKHO/UKHO.GitHubCopilot.ToolKit. 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/UKHO/UKHO.GitHubCopilot.ToolKit/main/.github/instructions/auth.instructions.mdgit clone --depth 1 https://github.com/UKHO/UKHO.GitHubCopilot.ToolKitWrote 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/ukho/ukho.githubcopilot.toolkit/auth)<a href="https://agentmods.dev/instructions/ukho/ukho.githubcopilot.toolkit/auth"><img src="https://agentmods.dev/badge/instructions/ukho/ukho.githubcopilot.toolkit/auth/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/ukho/ukho.githubcopilot.toolkit/auth"><img src="https://agentmods.dev/badge/instructions/ukho/ukho.githubcopilot.toolkit/auth.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 | $0.00813 | $0.00813 |
| Opus 5.5 | $0.00325 | $0.00325 |
| Sonnet 5.5 | $0.00163 | $0.00163 |
| Haiku 4.5 | $0.00081 | $0.00081 |
Grade A, and why
UKHO.GitHubCopilot.ToolKit auth.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 — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Standards-based authentication guidance
Overview
These instructions standardize how authentication guidance should be written and implemented for Microsoft projects. Application code should focus on standards-based integration such as OpenID Connect (OIDC) and OAuth 2.0 so that identity-provider choices can vary by environment while remaining compatible with Microsoft-hosted solutions.
Scope
Applies to: src/**/AppHost/**/*, src/**/*AppHost*.csproj, src/**/*.cs, src/**/*.csproj, src/**/*.json
- Applies when adding or changing authentication for APIs, web apps, services, or local orchestration.
- This is additive to more specific stack instructions when those files exist.
Instructions
MUST
-
Keep identity-provider selection environment-driven.
- Document which provider is used in each environment when that choice matters.
- Prefer configuration-based selection so application code does not need environment-specific branching for provider swaps.
-
For Azure-hosted Microsoft solutions, prefer Microsoft Entra ID when it satisfies the project requirements.
- When integrating ASP.NET Core apps or APIs with Entra ID, prefer supported Microsoft libraries such as
Microsoft.Identity.Webwhere appropriate.
- When integrating ASP.NET Core apps or APIs with Entra ID, prefer supported Microsoft libraries such as
-
Prefer standards-based integration in application code:
- Web apps MUST use OIDC Authorization Code flow (with PKCE where applicable).
- APIs MUST validate access tokens using OAuth 2.0 / JWT bearer authentication.
-
Keep identity configuration externalized.
- Authority/issuer URLs, tenant/realm, client IDs, and secrets MUST NOT be hard-coded.
- Secrets MUST NOT be checked into source control.
-
When a non-production identity provider is used for local development or isolated testing, keep that choice explicit in configuration and documentation.
- If the repository uses container orchestration or other managed local infrastructure for identity, manage the provider through that setup rather than undocumented manual steps.
- Keep local identity setup repeatable so developers can recreate realms, tenants, applications, or client registrations consistently.
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 · 75 lines · 813 tokens per session scan A 6eebe5f80f65
UKHO.GitHubCopilot.ToolKit auth.instructions.md is an instructions file published in the GitHub repository UKHO/UKHO.GitHubCopilot.ToolKit (1 stars, last pushed 4mo ago), licensed MIT. It adds 813 tokens to every session, about $0.0033 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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