What is core AGENTS.md?

A set of instructions for AI coding agents working on the Smeldr/core repository. The supplied excerpt identifies its topics but does not provide the actual repository rules.

Helping an agent work on Smeldr/core according to its AGENTS.md instructions, including guidance for adding content types and field-format hints.

It is meant to give an agent project-specific guidance, but the available information is too thin to say which decisions or files it governs.

How Smeldr/core configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to Smeldr/core. 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/Smeldr/core/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/Smeldr/core

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/smeldr/core/agents-md/github.svg)](https://agentmods.dev/instructions/smeldr/core/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/smeldr/core/agents-md"><img src="https://agentmods.dev/badge/instructions/smeldr/core/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/smeldr/core/agents-md"><img src="https://agentmods.dev/badge/instructions/smeldr/core/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 25,959 This file is loaded in full into every session.

When invoked 25,959 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.

Model	Per session	Once invoked
Fable 5.1	$0.25959	$0.25959
Opus 5.5	$0.10384	$0.10384
Sonnet 5.5	$0.05192	$0.05192
Haiku 4.5	$0.02596	$0.02596

Measured 4d ago against content hash ab2f5687d807, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

core 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 4d 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 · 1,004 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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.

4d ago Changed · +8 lines · +201 tokens per session ab2f5687d807
5d ago Changed · +3 lines · +440 tokens per session 841a956f07c6
8d ago Changed · +86 tokens per session cfbc5dd16950
10d ago Changed · +10 lines · +422 tokens per session 9c2a9bcd2181
12d ago Changed · +18 tokens per session e1ff92eff905
14d ago Changed · +4 lines · +435 tokens per session 40e19c051c4f
15d ago Changed · +4 lines · +203 tokens per session fd35758f59d1
16d ago Changed · +4 lines · +217 tokens per session 40c9b81e9079
18d ago Changed · -10 lines · +296 tokens per session 3c3fb0c48cc7
19d ago First seen · 981 lines · 23,641 tokens per session scan A 6d5dc4ba68e9

Subscribe to this mod's changes

core AGENTS.md is an instructions file published in the GitHub repository Smeldr/core (10 stars, last pushed yesterday), licensed AGPL-3.0. It adds 25,959 tokens to every session, about $0.1038 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 2026-08-31.

Go Writing and docs ai-agents go mcp open-source smeldr

core AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
core AGENTS.mdSmeldr/core	Instructions file	10	yesterday	AGPL-3.0	A	25,959	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

core: Instructions file for Codex