Borrowing it
Nothing to install: this file belongs to ricardoquesada/regenerator2000. 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/ricardoquesada/regenerator2000/main/AGENTS.mdgit clone --depth 1 https://github.com/ricardoquesada/regenerator2000Wrote 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/ricardoquesada/regenerator2000/agents-md)<a href="https://agentmods.dev/instructions/ricardoquesada/regenerator2000/agents-md"><img src="https://agentmods.dev/badge/instructions/ricardoquesada/regenerator2000/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/ricardoquesada/regenerator2000/agents-md"><img src="https://agentmods.dev/badge/instructions/ricardoquesada/regenerator2000/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 | $0.03904 | $0.03904 |
| Opus 5.5 | $0.01562 | $0.01562 |
| Sonnet 5.5 | $0.00781 | $0.00781 |
| Haiku 4.5 | $0.00390 | $0.00390 |
Grade A, and why
regenerator2000 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 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 — 225 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Regenerator 2000 - Agent Instructions
Regenerator 2000 is an interactive 6502 disassembler TUI written in Rust, targeting Commodore 8-bit machines. It uses ratatui + crossterm for the terminal UI and exposes an MCP (Model Context Protocol) server for programmatic access.
Architecture & Crate Structure
The project is split into two main crates to separate logic from presentation:
-
regenerator2000-core: Contains all UI-agnostic logic.analyzer.rs: Auto-analysis (walking code, generating labels).assets.rs: System asset loading (labels, comments, exclude lists).commands.rs: TheCommandenum andUndoStack. Every undoable action is a command.config.rs: System-wide configuration management.core.rs: Central orchestration logic (file loading, command dispatch, integration).cpu.rs: 6502 opcode table and addressing mode logic.disassembler/: 6502 decoding and assembler formatters (64tass, ACME, KickAssembler, ca65).event.rs: Application event types.exporter/: Code for exporting disassembly to ASM or HTML, with roundtrip verification.mcp/: MCP server implementation (stdio and HTTP transports). Containshandler.rsdispatcher andtools/submodules (analysis_tools,navigation_tools,modification_tools,session_tools,common).navigation.rs: Address navigation logic.packers/: 6502 binary packer strategies (Packertrait, signature detection, pre/post emulation hooks).parser/: File format parsers (.prg, .d64/.d71/.d81, .t64, .crt, .vsf snapshots, .dis65, VICE labels).state/: Persistent application state and project serialization.utils.rs: Shared utility functions.vice/: VICE binary monitor protocol client for live debugging.view_state.rs: View state management.
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regenerator2000-tui: Contains all terminal UI-related code.ui/: TUI widgets, views (view_disassembly/submodule breakdown [layout.rs,navigation.rs,mouse.rs,render.rs,mod.rs], HexDump, Sprites, Charset, Bitmap, Blocks, Debugger), and dialogs.ui_state.rs: Transient UI state (cursor, scroll, active dialog).events/: Input handling and event loop.theme.rs: Color scheme and styling logic.theme_file.rs: Theme file parsing and custom theme support.utils.rs: TUI utility functions.
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 · 225 lines · 3,904 tokens per session scan A 23279eab6f88
regenerator2000 AGENTS.md is an instructions file published in the GitHub repository ricardoquesada/regenerator2000 (163 stars, last pushed 8d ago), licensed Apache-2.0. It adds 3,904 tokens to every session, about $0.0156 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.
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