skywalking-banyandb: Instructions file for Codex

AGENTS.md

skywalking-banyandb AGENTS.md is an instructions file for Codex, OpenCode from apache/skywalking-banyandb. It costs 432 tokens per session, scanned A, original, Apache-2.0.

Repository instructions for AI assistants editing SkyWalking BanyanDB, a distributed time-series database written in Go. They describe formatting, linting, error handling, security, and import conventions.

In plain words
What is it for?
Use them when writing or reviewing BanyanDB Go code, organising imports, choosing protobuf aliases, or checking lint and security requirements.
Why use it?
They help agents produce code that matches the project's checks and conventions, reducing review fixes and automated build failures.

Instructions file for CodexOpenCode ✓ vendor

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

This is apache/skywalking-banyandb's own configuration. It tells Codex and OpenCode how to work on skywalking-banyandb 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 skywalking-banyandb configures →

About the project

Apache SkyWalking BanyanDB is a database for collecting, analyzing, and storing metrics, traces, and logs produced by observability and application-performance systems. It is intended for platforms such as Apache SkyWalking that need to work with monitoring data.

apache/skywalking-banyandb · 354 stars · on GitHub · skywalking.apache.org

Reuse

Borrowing it

Nothing to install: this file belongs to apache/skywalking-banyandb. 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/apache/skywalking-banyandb/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/apache/skywalking-banyandb

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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README.md
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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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Per session 432 This file is loaded in full into every session.
When invoked 432 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 $0.00432 $0.00432
Opus 5.5 $0.00173 $0.00173
Sonnet 5.5 $0.00086 $0.00086
Haiku 4.5 $0.00043 $0.00043

Measured 1mo ago against content hash 80bf1b3c9432, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skywalking-banyandb 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.

AGENTS.md · 40 lines

How it starts

The opening of the file, as written. The whole thing — 40 lines — stays where its author put it; the contents beside it link to each section on GitHub.

BanyanDB Agent Guide

BanyanDB is a distributed time-series database written in Go. Follow nearby code and tests; keep changes focused on the requested behavior.

Completion and scope

  • Finish the requested change and relevant verification without asking about routine next steps. Stop when the requested outcome is verified or a concrete blocker requires user input; do not expand into unrelated fixes or redesigns.
  • Preserve unrelated working-tree changes. Do not commit, push, publish, or change external resources unless requested or already authorized.
  • Use independent subagents when their work saves time; small tasks do not need delegation or a separate review workflow.

Go conventions

  • .golangci.yml is authoritative for lint rules, protobuf import aliases, exclusions, and the 170-character line limit. .golangci-format.yml controls formatting with gci and gofumpt; its exclusions are not general lint exclusions.
  • Import groups: standard library, third-party packages, then this repository.
  • Avoid shadowing existing variables. Short names and if err := ... are valid when they do not shadow another variable; use descriptive names where useful.
  • Check errors and add meaningful context with %w when wrapping. Preserve error identity and the relevant API's error-handling conventions.
  • Document exported functions and types with concise, punctuated comments. Add implementation comments only for non-obvious logic.

Correctness and validation

  • Follow existing test conventions and run the smallest relevant suites first. Expand validation for affected integration boundaries, generated code, or shared infrastructure; avoid unrelated full builds during read-only or wording tasks.
  • Preserve persisted-data and wire compatibility. For format, schema, or protocol changes, check existing data and mixed-version behavior as applicable.
  • For concurrent or stateful changes, consider cancellation, resource ownership, bounded memory, and recovery. Use the repository's established helpers.
  • Read design documents only for the subsystem or contract being changed. Follow any more-specific AGENTS.md in the affected directory.

Read the full file on GitHub · 40 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. 1mo ago Changed · -247 lines · -1,818 tokens per session 80bf1b3c9432
  2. 1mo ago First seen · 287 lines · 2,250 tokens per session scan A a4e0c8e8887f

Subscribe to this mod's changes

skywalking-banyandb AGENTS.md is an instructions file published in the GitHub repository apache/skywalking-banyandb (354 stars, last pushed today), licensed Apache-2.0. It adds 432 tokens to every session, about $0.0017 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 2026-09-03.

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