Borrowing it
Nothing to install: this file belongs to eupassarin/simplesign. 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/eupassarin/simplesign/main/AGENTS.mdgit clone --depth 1 https://github.com/eupassarin/simplesignWrote 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/eupassarin/simplesign/agents-md)<a href="https://agentmods.dev/instructions/eupassarin/simplesign/agents-md"><img src="https://agentmods.dev/badge/instructions/eupassarin/simplesign/agents-md/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/eupassarin/simplesign/agents-md"><img src="https://agentmods.dev/badge/instructions/eupassarin/simplesign/agents-md.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 | $0.01306 | $0.01306 |
| Opus 5.5 | $0.00522 | $0.00522 |
| Sonnet 5.5 | $0.00261 | $0.00261 |
| Haiku 4.5 | $0.00131 | $0.00131 |
Grade A, and why
simplesign AGENTS.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 13d 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 — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — Instructions for AI Coding Agents
This file provides instructions for autonomous AI coding agents (GitHub Copilot Workspace, OpenAI Codex, Devin, etc.) working on the SimpleSign repository.
Quick Reference
| Action | Command |
|---|---|
| Build all | dotnet build SimpleSign.sln --no-restore |
| Contract tests | dotnet test tests/unit/SimpleSign.Contracts.Tests --no-restore |
| Specific tests | dotnet test tests/unit/SimpleSign.PAdES.Tests --no-restore |
| Interop tests | dotnet test tests/interop/SimpleSign.Interop.Tests --no-restore |
| VeraPDF interop | docker pull verapdf/cli && dotnet test tests/interop/ --filter "Category=VeraPdf" |
| Integration tests | dotnet test tests/integration/SimpleSign.Integration.Tests --no-restore |
| CLI tests | dotnet test tests/cli/SimpleSign.Cli.Tests --no-restore |
| Mutation tests | dotnet stryker |
| Lint/format check | Build with 0 warnings (enforced) |
| AOT smoke test | dotnet publish tests/smoke/SimpleSign.AotSmokeTest -r linux-x64 |
Project Structure
SimpleSign/
├── src/ Production code
│ ├── SimpleSign.Core/ Crypto: CMS, TSA, OCSP, CRL, hashing
│ ├── SimpleSign.Pdf/ PDF parser: xref, objects, incremental save
│ ├── SimpleSign.PAdES/ PAdES signing, validation, inspection
│ ├── SimpleSign.Brasil/ ICP-Brasil extensions
│ ├── SimpleSign.HtmlToPdf/ HTML→PDF layout engine
│ ├── SimpleSign.Cli/ CLI tool (Spectre.Console)
│ ├── SimpleSign.HostSigner/ Windows tray app — local signing API
│ └── ...
├── tests/
│ ├── unit/ Unit tests (~1,500 tests, < 5s)
│ ├── integration/ Network-dependent tests
│ ├── interop/ Cross-platform signature verification
│ ├── cli/ CLI integration tests
│ ├── fuzz/ Fuzz testing harnesses
│ ├── smoke/ AOT compilation smoke test
│ └── shared/ Test fixtures & helpers
├── samples/ Example applications
├── docs/ Documentation (docfx)
├── Directory.Build.props Shared MSBuild properties
└── global.json SDK version (10.0.100)
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.
- 13d ago First seen · 114 lines · 1,306 tokens per session scan A 6c7d8cb8af29
simplesign AGENTS.md is an instructions file published in the GitHub repository eupassarin/simplesign (18 stars, last pushed yesterday), licensed MIT. It adds 1,306 tokens to every session, about $0.0052 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 2026-10-14.
Other instructions, from other repositories
vscode buildNext.instructions.md
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