qb-linq: Instructions file for Codex

AGENTS.md

qb-linq AGENTS.md is an instructions file for Codex, OpenCode from isndev/qb-linq. It costs 1,169 tokens per session, scanned A, original, MIT.

A set of instructions for coding agents working on qb-linq, a header-only C++ library for querying data with C++ code.

In plain words
What is it for?
Use it when modifying or building qb-linq, especially its public headers, CMake configuration, generated version information, documentation, or optional single-header distribution.
Why use it?
It tells an agent what the repository contains, where its implementation lives, which standards it uses, and what documentation to read before making changes.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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 qb-linq AGENTS.md

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 1,169 This file is loaded in full into every session.
When invoked 1,169 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 $0.01169 $0.01169
Opus 5.5 $0.00468 $0.00468
Sonnet 5.5 $0.00234 $0.00234
Haiku 4.5 $0.00117 $0.00117

Measured 2mo ago against content hash 771d273509cd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

qb-linq 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 2mo 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 · 72 lines

How it starts

The opening of the file, as written. The whole thing — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Instructions for AI coding agents — qb-linq

What this repository is

qb-linq is a header-only C++ library (CMake INTERFACE target qb::linq). The numeric version lives in project(qb-linq VERSION …) in CMakeLists.txt (see the table below). Implementation is entirely under include/; there is no separate library .cpp to compile for consumers.

Fact Source
Public API #include <qb/linq.h>, namespace qb::linq
CMake target qb::linq
C++ standard 17
Library version project(qb-linq VERSION …) in CMakeLists.txt → generated qb/linq/version.h — docs/VERSIONING.md
Layout See README Repository layout and docs/LLM_CONTEXT.md; optional amalgam single_header/linq.h (regenerate qb_linq_single_header)

Build, presets, options, install: docs/BUILDING.md (aligned with root CMakeLists.txt and CMakePresets.json).

Before changing code

  1. docs/LLM_CONTEXT.md — include graph, handle types, where declarations vs definitions live, materialization / iterator contracts.
  2. include/qb/linq.h — Doxygen @defgroup linq: caveats (select_many, zip/concat, where_view cache, hashing for set ops, thread-safety, etc.).
  3. Minimal diffs — match existing style, naming, and Doxygen; no unrelated refactors.

Where implementation lives

Task Primary files
Algorithm declarations (query_range_algorithms) include/qb/linq/detail/query_range.h
Out-of-line bodies (many materializers, join, …) include/qb/linq/query.h or include/qb/linq/detail/extra_views.h — split table in docs/LLM_CONTEXT.md
Iterator adaptors (select, where, take, …) include/qb/linq/iterators.h
Compositional views (concat, zip, scan, chunk, …) include/qb/linq/detail/extra_views.h
group_by container shape include/qb/linq/detail/group_by.h
order_by keys / comparators include/qb/linq/detail/order.h
Public façade and factories include/qb/linq/enumerable.h
Umbrella include include/qb/linq.h → version.h (generated) + enumerable.h

Read the full file on GitHub · 72 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. 2mo ago First seen · 72 lines · 1,169 tokens per session scan A 771d273509cd

Subscribe to this mod's changes

qb-linq AGENTS.md is an instructions file published in the GitHub repository isndev/qb-linq (13 stars, last pushed 1mo ago), licensed MIT. It adds 1,169 tokens to every session, about $0.0047 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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