sq: Instructions file for Codex

AGENTS.md

sq AGENTS.md is an instructions file for Codex, OpenCode from neilotoole/sq. It costs 4,477 tokens per session, scanned A, original, MIT.

Repository guidance for contributors and coding assistants working on sq, a command-line tool for querying databases and files such as CSV, JSON, and Excel.

In plain words
What is it for?
Use it when working on sq to understand repository conventions, choose relevant documentation, implement changes, and keep project docs accurate.
Why use it?
It points contributors to the right project documents, commands, architecture rules, and workflows before they make significant changes.

Instructions file for CodexOpenCode

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

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

About the project

sq is a command-line data-wrangling tool that lets users query, join, inspect, compare, and transform SQL databases and structured files such as CSV and Excel using SQL or jq-like queries. It is intended for people working with databases and tabular or document data. Catalogue add-ons provide workflows for using sq from coding agents.

neilotoole/sq · 2,574 stars · on GitHub · sq.io

Reuse

Borrowing it

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

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 sq AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/neilotoole/sq/agents-md"><img src="https://agentmods.dev/badge/instructions/neilotoole/sq/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 4,477 This file is loaded in full into every session.
When invoked 4,477 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 $0.04477 $0.04477
Opus 5.5 $0.01791 $0.01791
Sonnet 5.5 $0.00895 $0.00895
Haiku 4.5 $0.00448 $0.00448

Measured 7d ago against content hash 5a0afc6f1ff2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sq 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 7d 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 · 406 lines

How it starts

The opening of the file, as written. The whole thing — 406 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Guidance for AI coding assistants (Claude Code, Copilot, Cursor, Codex, etc.) and human contributors working in this repo.

Subdirectories add their own conventions on top of these rules:

[!IMPORTANT] Before making a significant change, review docs/README.md and the contributor docs it links to (architecture, drivers, grammar, development, CI, Sakila, releasing). Read the ones relevant to your task before you start, and if your change makes any of them inaccurate, update them in the same change.

About sq

sq is a command-line data wrangler providing jq-style access to structured data sources (eight SQL databases: SQLite, rqlite, DuckDB, Postgres, SQL Server, MySQL, ClickHouse and Oracle; and document formats like CSV, JSON and Excel). User docs live at sq.io.

Key documents

Before making non-trivial changes, read the document most relevant to your task:

  • README.md: project overview and user-facing intro.
  • CONTRIBUTING.md: full contributor guide (tooling, Makefile usage, driver implementation patterns, test handles, CHANGELOG.md format).
  • docs/README.md: index of the contributor docs under docs/.
  • docs/ARCHITECTURE.md: Mermaid ERD of core types (Source, Driver, Grip, Registry, RecordWriter, etc.).
  • docs/DRIVERS.md: driver development guide (package structure, type mapping, the driver ship checklist).
  • docs/GRAMMAR.md: SLQ query language grammar guide (companion to grammar/SLQ.g4).
  • docs/DEVELOPER.md: the local development loop (Makefile targets, inner loop, git hooks).
  • docs/CI.md: how CI works (what runs on a PR, nightly, and on a release tag; the DB integration matrix; the release path).
  • docs/SAKILA.md: the Sakila test dataset (sakiladb images, embedded vs external sources, engine matrix, repo-wide usage).
  • sq.io: end-user documentation for commands and query syntax.

Read the full file on GitHub · 406 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. 7d ago Changed · +2 lines · +27 tokens per session 5a0afc6f1ff2
  2. 1mo ago Changed · +5 lines · +100 tokens per session 536fb49e63b6
  3. 1mo ago Changed · +35 lines · +430 tokens per session 563c7f656a09
  4. 1mo ago Changed · +3 lines · +39 tokens per session 00bb96d460f5
  5. 1mo ago Changed · +2 lines · +44 tokens per session 2006328cbda8
  6. 2mo ago First seen · 359 lines · 3,837 tokens per session scan A 513d05efdfea

Subscribe to this mod's changes

sq AGENTS.md is an instructions file published in the GitHub repository neilotoole/sq (2,574 stars, last pushed yesterday), licensed MIT. It adds 4,477 tokens to every session, about $0.0179 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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