duckdb-r: Instructions file for Codex

AGENTS.md

duckdb-r AGENTS.md is an instructions file for Codex, OpenCode from duckdb/duckdb-r. It costs 698 tokens per session, scanned A, original, no licence file.

A project instruction file for duckdb-r, a tool that connects the DuckDB database to the R programming language. It explains how to start work and follow project rules.

In plain words
What is it for?
Use it when working on duckdb-r, especially during initial project orientation and other repository tasks.
Why use it?
It gives coding agents consistent guidance when changing that repository.

Instructions file for CodexOpenCode ✓ vendor

Written for Codex and OpenCode: the file is AGENTS.md.

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

Reuse

Borrowing it

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

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 duckdb-r AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/duckdb/duckdb-r/agents-md"><img src="https://agentmods.dev/badge/instructions/duckdb/duckdb-r/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 698 This file is loaded in full into every session.
When invoked 698 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 unknown 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 $0.00698 $0.00698
Opus 5.5 $0.00279 $0.00279
Sonnet 5.5 $0.00140 $0.00140
Haiku 4.5 $0.00070 $0.00070

Measured 1mo ago against content hash b56aee9aebc9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

duckdb-r 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 · 60 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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 · +16 lines · +216 tokens per session b56aee9aebc9
  2. 2mo ago First seen · 44 lines · 482 tokens per session scan A 8dd8f4523791

Subscribe to this mod's changes

duckdb-r AGENTS.md is an instructions file published in the GitHub repository duckdb/duckdb-r (231 stars, last pushed 14d ago), with no licence file. It adds 698 tokens to every session, about $0.0028 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.

Related

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