blitzdenk: Instructions file for Codex

AGENTS.md

blitzdenk AGENTS.md is an instructions file for Codex, OpenCode from Lommix/blitzdenk. It costs 473 tokens per session, scanned A, original, MIT.

A project-specific instruction file for Blitzdenk, a coding harness written in Zig with embedded Lua. It records the code layout, supported model types, and important rules for Zig 0.16.

In plain words
What is it for?
Use it when working on Blitzdenk’s agent state, terminal interface, Lua or MCP integrations, hot reload, skills, tools, or model configuration.
Why use it?
It gives a coding agent the project context it needs before changing code. This reduces mistakes caused by using the wrong module, command, API, or Zig behavior.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions subagents.

This is Lommix/blitzdenk's own configuration. It tells Codex and OpenCode how to work on blitzdenk itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything blitzdenk configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Lommix/blitzdenk. 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/Lommix/blitzdenk/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Lommix/blitzdenk

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.

agentmods badge for blitzdenk AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/lommix/blitzdenk/agents-md/github.svg)](https://agentmods.dev/instructions/lommix/blitzdenk/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/lommix/blitzdenk/agents-md"><img src="https://agentmods.dev/badge/instructions/lommix/blitzdenk/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.

agentmods 80×15 button for blitzdenk AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/lommix/blitzdenk/agents-md"><img src="https://agentmods.dev/badge/instructions/lommix/blitzdenk/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 473 This file is loaded in full into every session.
When invoked 473 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00473 $0.00473
Opus 5.5 $0.00189 $0.00189
Sonnet 5.5 $0.00095 $0.00095
Haiku 4.5 $0.00047 $0.00047

Measured today against content hash 0a54e773fc14, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

blitzdenk 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 today.

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 · 45 lines

What it actually says

Project Blitzdenk

A coding harness written in Zig with vendored Lua, no dependencies.

Zig version: 0.17.0

Commands

  • zig build compile the binary
  • zig build gen generate the lua meta file src/meta.lua
  • make test run the blitzdenk suite
  • make check verify formatting, generated meta, and tests

Platform

Linux and macOS. Asset OS strings are linux and macos; derive them from the target triple, not from uname -s (darwin). Browser open uses open on macOS and xdg-open elsewhere. Clipboard images use wl-paste or xclip on Linux and osascript on macOS. XDG variables are unset on macOS; stateDir and cacheDir fall back under $HOME. Cross-compile check: zig build -Dtarget=aarch64-macos -Doptimize=ReleaseSmall.

Sub-agent flow

  • Reserve, spawn, state: src/agent_registry.zig, src/commands.zig
  • Run loop: src/agent.zig, src/agent_run.zig
  • Result injection into the parent: App.finishBackgroundAgent in src/app.zig
  • Lua surface: src/lua.zig, src/blitz_default.lua
  • Tui state and render: src/app.zig

Tool execution and output

  • Install, trampoline, nested runs: src/tools/context.zig
  • Caps, spills, display limits: src/tools/display.zig
  • SDK result copy: blitz-sdk/src/generate.zig (executeOne, freeToolResults)
  • Lua tool VM: src/lua.zig (luaToolTrampoline, interpretReturns, luaCtxCall, luaCtxBatch)
  • MCP tool bridge: src/mcp.zig (toolTrampoline, flattenContent)

The skill file: blitzdenk-lua.md

  • Keep up to date with changes.
  • Short concise prose.
  • Scope is Lua and Lua only! Zig internals are irrelevant.
  • Don't include facts easily covered by meta.lua
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.

  1. today Changed · +8 lines · +114 tokens per session 0a54e773fc14
  2. yesterday Changed · +4 lines · +118 tokens per session 35ece3f3584a
  3. 13d ago Changed · +10 lines · +112 tokens per session a7e4de1acff2
  4. 14d ago Changed 18a2647edfdc
  5. 28d ago Changed · -38 lines · -1,011 tokens per session ac28c896311f
  6. 1mo ago Changed · +34 tokens per session f6fec5792712
  7. 1mo ago Changed · +6 lines · -6 tokens per session 96777cebbe48
  8. 1mo ago Changed · +11 tokens per session 2cc87d7cd6fe
  9. 2mo ago First seen · 55 lines · 1,101 tokens per session scan A 21ca4d66c503

Subscribe to this mod's changes

blitzdenk AGENTS.md is an instructions file published in the GitHub repository Lommix/blitzdenk (13 stars, last pushed yesterday), licensed MIT. It adds 473 tokens to every session, about $0.0019 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 2026-08-31.

Related

blitzdenk AGENTS.md compared with instructions from other repositories

blitzdenk AGENTS.md next to 6 instructions from other repositories
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blitzdenk AGENTS.mdLommix/blitzdenkInstructions file13yesterdayMITA473Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149kyesterdayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode