SBK: Instructions file for Codex

AGENTS.md

SBK AGENTS.md is an instructions file for Codex, OpenCode from kmgowda/SBK. It costs 5,725 tokens per session, scanned A, original, Apache-2.0.

A repository guide for SBK, a Java program that measures the performance of S3-compatible storage, message queues, file systems, and databases. It tells coding agents where things are and how to build and verify changes.

In plain words
What is it for?
Use it when changing SBK, running its builds or checks, or adding benchmark work for a storage system or message queue.
Why use it?
It prevents agents from guessing the repository layout, supported targets, or verification commands. This makes work on benchmark code more consistent across different coding tools.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions Claude Code; mentions AGENTS.md; mentions Codex.

This is kmgowda/SBK's own configuration. It tells Codex and OpenCode how to work on SBK 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 SBK configures →

Reuse

Borrowing it

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

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.

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README.md
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Your own site
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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.

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Your own site · 80×15
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Per session 5,725 This file is loaded in full into every session.
When invoked 5,725 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 $0.05725 $0.05725
Opus 5.5 $0.02290 $0.02290
Sonnet 5.5 $0.01145 $0.01145
Haiku 4.5 $0.00573 $0.00573

Measured yesterday against content hash 75855bba1cef, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

SBK 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 yesterday.

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 · 497 lines

How it starts

The opening of the file, as written. The whole thing — 497 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — AI Agent Guide for the SBK Repository

Universal entry point for all AI agents. This file is the standard entry point for AI coding agents (Devin, Claude Code, Cursor, GitHub Copilot, Continue, Aider, OpenAI Codex, Windsurf, etc.) working in this repository. It tells the agent what SBK is, how to build and verify it, what conventions to follow, where things live, and what the common gotchas are.

Agent-specific configurations:

  • Devin: See .devin/skills/ for executable skills
  • Cursor: See .cursor/rules/sbk.mdc; .cursorrules is the legacy pointer
  • Aider: See .aider.conf.yml for Aider configuration
  • Codex and Windsurf: consume this root AGENTS.md directly
  • Benchmark execution: any agent may use the portable .devin/skills/sbk-benchmark-runner/ and .devin/skills/sbk-distributed-benchmark-runner/ knowledge packs

Humans: see README.md for the end-user manual and docs/sbk-internals.md for the internal design.


1. What this repository is

SBK (Storage Benchmark Kit) is a Java framework for benchmarking any S3-compatible / message-queue / file-system / database storage. It runs identical measurement code against any backend via a small pluggable driver SPI.

  • Languages. Java only (no Kotlin, no Scala). Build with Gradle (wrapper in tree: ./gradlew). JDK 25 required.
  • Modules. 7 core modules + 52 enabled storage drivers. The source tree also contains disabled drivers and a driver template. Each module is a Gradle subproject.
  • License. Apache 2.0.
  • Branch model. Trunk-based; PRs target master.

Module map (memorise this)

Module Role When you edit it
perl/ PerL — Performance Logger library (lock-free queues, latency windows, percentile math). Heart of the framework. Rarely. Only when changing core measurement behaviour.
sbk-web-console/ Independent Local Web Console runtime (HTTP server/client, protocol DTOs, UI resources). When changing shared WebLogger transport or browser behavior.
sbk-api/ The benchmark harness. Defines Storage<T> SPI, RWLogger SPI, SbkBenchmark, Sbk main bootstrap. When changing the harness, CLI flags, the SPI, or how loggers work.
sbm/ SBM — Storage Benchmark Monitor (gRPC aggregator on port 9717). When changing distributed aggregation.
sbk-yal/ YML-driven launcher (single-node). Rarely.
sbk-gem/ SBK-GEM — SSH-based distributed launcher. When changing the multi-host orchestration.
sbk-gem-yal/ YML-driven SBK-GEM. Rarely.
drivers/<name>/ One subdirectory per storage backend. 52 are enabled in the aggregate build; disabled drivers and a template also remain in tree. When adding or fixing a driver. This is the most common change.

Read the full file on GitHub · 497 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.

  1. yesterday First seen · 497 lines · 5,725 tokens per session scan A 75855bba1cef

Subscribe to this mod's changes

SBK AGENTS.md is an instructions file published in the GitHub repository kmgowda/SBK (36 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 5,725 tokens to every session, about $0.0229 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 2026-11-07.

Related

SBK AGENTS.md compared with instructions from other repositories

SBK AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
SBK AGENTS.mdkmgowda/SBKInstructions file361mo agoApache-2.0A5,725Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,516GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA2,022GitHub Copilot