What is monoprop AGENTS.md?

A repository instruction file for monoprop, a C++ and Python library that models how Majorana and Pauli operators change through computations.

Use it when adding features, fixing bugs, refactoring, documenting, formatting, or testing the monoprop library and its Python bindings.

It tells a coding agent which language standards, formatting, linting, commit style, and project structure to follow before changing code.

How Algorithmiq/monoprop configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to Algorithmiq/monoprop. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/Algorithmiq/monoprop/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/Algorithmiq/monoprop

Made for: Codex, OpenCode.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/algorithmiq/monoprop/agents-md/github.svg)](https://agentmods.dev/instructions/algorithmiq/monoprop/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/algorithmiq/monoprop/agents-md"><img src="https://agentmods.dev/badge/instructions/algorithmiq/monoprop/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/algorithmiq/monoprop/agents-md"><img src="https://agentmods.dev/badge/instructions/algorithmiq/monoprop/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 913 This file is loaded in full into every session.

When invoked 913 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00913	$0.00913
Opus 5.5	$0.00365	$0.00365
Sonnet 5.5	$0.00183	$0.00183
Haiku 4.5	$0.00091	$0.00091

Measured 7d ago against content hash eb1e94d30343, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

monoprop 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 7d 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.

AGENTS.md · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

monoprop agent guide

A C++23/Python library for Majorana and Pauli propagation. MonomialPropagator<NumModes> is the shared engine; Majorana against Pauli is a runtime Basis, and Python exposes MajoranaPropagator and PauliPropagator. monoprop_MAX_NUM_MODES is the compile-time mode limit (default 1024).

Rules

C++23 idioms, trailing return types, follow almost-always-auto style, clang-format with the repository configuration.
Use snake case for naming variables and functions, camel case for classes. E.g., kBits is wrong for a integer variable, use num_bits instead.
Only private member variables are suffixed with an underscore.
Qt-style Doxygen on every header declaration, member docs after the member. // for one-line C++ comments, /* */ for blocks.
Comment invariants, contracts and non-obvious choices only. Never narrate the code.
Google-style Python docstrings without type hints, accurate enough for just gen-api. Type hints in the code.
In docs/content/docs/**/*.mdx and docstrings, link API symbols as [Symbol][] or [Display][fully.qualified.path] -- never /api/... URLs, never backticks around a link. See docs/content/docs/documenting.mdx.
Run prek run --all-files and the relevant tests before pushing, and fix every finding. lint.yml runs the same hooks over the PR's commit range, so a skipped lint is a red PR.
Changes to the API or user-facing behavior (including developers, e.g. test workflows) should be reflected in the docs and, if relevant, the README.md.

Git and PRs

Commits and PR titles: <type>(<optional scope>): <gitmoji> <description>. Types: feat (minor), fix (patch), docs, style, refactor, test, chore; ! for breaking changes.
Agent commits carry Assisted-by: <harness>:<model> and no Co-authored-by.
Follow .github/PULL_REQUEST_TEMPLATE.md; prefix agent-authored descriptions and comments with :robot: _AI text below_ :robot:.

Layout

Public headers cpp/include/monoprop/, implementation cpp/monoprop/, Python API src/monoprop/, binding template src/monoprop/bindings/binder.h, generators tools/generate-*.py, container recipes tools/container/ (see building.mdx), sibling distributions packages/*. The repository root is the uv workspace's monoprop package.

Read the full file on GitHub · 65 lines

Changes

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.

7d ago Changed · +1 lines · +17 tokens per session eb1e94d30343
24d ago Changed · +1 tokens per session 034963f7fcb2
2mo ago Changed · -134 lines · -2,573 tokens per session scan C → A 5f033c8b0470
2mo ago First seen · 198 lines · 3,468 tokens per session scan C f944242c522a

Subscribe to this mod's changes

monoprop AGENTS.md is an instructions file published in the GitHub repository Algorithmiq/monoprop (54 stars, last pushed 6d ago), licensed Apache-2.0. It adds 913 tokens to every session, about $0.0037 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 2026-08-30.

majorana-fermions pauli-propagation quantum-simulation

monoprop AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
monoprop AGENTS.mdAlgorithmiq/monoprop	Instructions file	54	6d ago	Apache-2.0	A	913	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

monoprop: Instructions file for Codex