Azure/artifact-signing-notation-plugin is a plugin for the Notation command-line tool that uses Microsoft's Artifact Signing service to sign and verify container images and other OCI artifacts. It is for users who need to check that artifacts come from a trusted source and were not changed after release. The catalogue includes an instruction for using the plugin.
Borrowing it
Nothing to install: this file belongs to Azure/artifact-signing-notation-plugin. 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/Azure/artifact-signing-notation-plugin/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/Azure/artifact-signing-notation-pluginWrote 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/azure/artifact-signing-notation-plugin/copilot-instructions)<a href="https://agentmods.dev/instructions/azure/artifact-signing-notation-plugin/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/azure/artifact-signing-notation-plugin/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/azure/artifact-signing-notation-plugin/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/azure/artifact-signing-notation-plugin/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 | $0.01094 | $0.01094 |
| Opus 5.5 | $0.00438 | $0.00438 |
| Sonnet 5.5 | $0.00219 | $0.00219 |
| Haiku 4.5 | $0.00109 | $0.00109 |
Grade A, and why
artifact-signing-notation-plugin 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 6d 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 — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Copilot Instructions
Project overview
This repo builds notation-azure-artifactsigning, a Notation plugin (a single-file native executable) that signs OCI artifacts using Microsoft's Artifact Signing service. Notation invokes the binary as a subprocess, sends a JSON request on stdin, and expects a JSON response on stdout (or a JSON ErrorResponse on stderr with a non-zero exit code).
Implements the Notation plugin contract. Three commands are dispatched from Program.ProcessCommand:
get-plugin-metadata→Metadata.GenerateMetadataResponsedescribe-key→Key.GenerateKeyResponsegenerate-signature→Sign.GenerateSignatureResponse
Capability advertised: SIGNATURE_GENERATOR.RAW. Only RSA-3072 / SHA-384 / RSASSA-PSS-SHA-384 are supported (see Constants/PluginConstants.cs); validators reject anything else.
Build, test, lint
Targets .NET 10 with central package management (Directory.Packages.props). Add new package versions there, then reference them without a Version attribute in the .csproj.
make build # dotnet build -c Release, single-file self-contained
make test # Microsoft.Testing.Platform with TRX reports + Coverlet coverage
Run a single test using dotnet (Makefile has no helper):
dotnet test --project Azure.Developer.ArtifactSigning.NotationPlugin.UnitTests \
--filter-method "*PluginUsageTests.MainMethod_OutputsSuccess_ForValidMetadataRequest"
Produce release artifacts (zip/tar.gz with renamed binary) using:
python3 ./scripts/build.py v<version> <runtime> # runtimes: win-x64, win-arm64, linux-x64, linux-arm64, osx-x64, osx-arm64
build.py rewrites the assembly name to notation-azure-artifactsigning via -p:AssemblyName=... and stamps the version with -p:Version=.... Notation locates the plugin by binary name, so the assembly rename is required for produced artifacts.
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.
- 6d ago First seen · 52 lines · 1,094 tokens per session scan A 20e0a718b69c
artifact-signing-notation-plugin copilot-instructions.md is an instructions file published in the GitHub repository Azure/artifact-signing-notation-plugin (5 stars, last pushed today), licensed MIT. It adds 1,094 tokens to every session, about $0.0044 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 2026-11-07.
artifact-signing-notation-plugin copilot-instructions.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| artifact-signing-notation-plugin copilot-instructions.mdAzure/artifact-signing-notation-plugin | Instructions file | 5 | today | MIT | A | 1,094 | GitHub Copilot |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,685 | GitHub Copilot |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,086 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 280k | 2d ago | MIT | A | 4,325 | Codex, OpenCode |