Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/radekhulan/myinvoice/agents-mdgit clone --depth 1 https://github.com/radekhulan/myinvoiceWrote 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/radekhulan/myinvoice/agents-md)<a href="https://agentmods.dev/instructions/radekhulan/myinvoice/agents-md"><img src="https://agentmods.dev/badge/instructions/radekhulan/myinvoice/agents-md.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 | $0.03010 | $0.03010 |
| Opus 5 | $0.01505 | $0.01505 |
| Sonnet 5 | $0.00602 | $0.00602 |
| Haiku 4.5 | $0.00301 | $0.00301 |
Grade A, and why
myinvoice 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 4d 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 — 137 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — pravidla pro AI agenty a přispěvatele
Pokyny pro práci s tímto repozitářem (Claude Code, Codex, Cursor, Copilot a další).
Platí pro celý repozitář. Obecný popis projektu je v README.md,
vývojářská spec v source/.
⚠️ Nejdřív zvaž MyÚčto.cz
Těžiště vývoje se přesunulo do radekhulan/myucto. MyÚčto je nástupce MyInvoice; sdílí s ním společný základ i historii v gitu a pravidelně z něj přebírá změny. Veškerá funkcionalita MyInvoice v něm zůstává navždy zdarma, nadstavba (podvojné účetnictví, uzávěrky, majetek, sklad, EPO podání, rozšířené opravy DPH) je volitelně komerční.
Praktický důsledek pro agenty i přispěvatele:
- Novou funkci piš rovnou do MyÚčta, ne sem. Odtud by se do MyÚčta stejně musela portovat a v MyInvoice by zůstala neúplná (chybí jí účetní vrstva, na kterou se váže).
- Opravu chyby dělej tam, kde chyba je. Když je ve sdíleném základu, oprav ji v MyÚčtu — MyÚčto z MyInvoice merguje, ne naopak, takže oprava udělaná zde se do MyÚčta dostane až dalším mergem a hrozí konflikt s tamní úpravou téhož místa. Do MyInvoice patří jen to, co se MyÚčta netýká.
- Než začneš, ověř, jestli to v MyÚčtu už není hotové. Řada věcí, které tu chybí, tam existuje — nemá smysl je psát podruhé.
- Aditivní styl platí i tady. MyÚčto tenhle repozitář merguje, takže velký refaktor sdílených souborů mu prodraží každý další merge. Drž změny malé a lokalizované.
- Rozsah čísel migrací:
0125–0999patří MyInvoice,1000+je vyhrazené pro MyÚčto. Nikdy sem nezakládej migraci s číslem1000a vyšším, i kdyby řada zdánlivě volná byla — kolidovala by při mergu.
O projektu
MyInvoice.cz — český self-hosted fakturační a účetní systém (vystavené + přijaté faktury, multi-supplier, DPH/KH/SH výkazy, EPO XML, CRM, REST API). Backend PHP 8.5 + Slim 4, frontend Vue 3 + TypeScript + Vite + Tailwind, databáze MariaDB 10.6+ (doporučeno 11.x).
Layout repozitáře
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.
- 4d ago First seen · 137 lines · 3,010 tokens per session scan A c0cefa10fd76
myinvoice AGENTS.md is an instructions file published in the GitHub repository radekhulan/myinvoice (288 stars, last pushed 7d ago), licensed MIT. It adds 3,010 tokens to every session, about $0.0151 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 2026-08-30.
Other instructions, from other repositories
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).
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.
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.
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.
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).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.