What is agent-skills AGENTS.md?

A set of project instructions for developing and maintaining coding-agent skills in the get-convex/agent-skills repository. It covers how agents should work, how skills should be designed, writing style, and file organization.

Use it when editing, reviewing, or maintaining skills and related files in that project.

It gives contributors shared rules for making changes consistent with the repository.

How get-convex/agent-skills configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to get-convex/agent-skills. 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/get-convex/agent-skills/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/get-convex/agent-skills

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/get-convex/agent-skills/agents-md/github.svg)](https://agentmods.dev/instructions/get-convex/agent-skills/agents-md)

Your own site

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

Per session 556 This file is loaded in full into every session.

When invoked 556 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.

Model	Per session	Once invoked
Fable 5.1	$0.00556	$0.00556
Opus 5.5	$0.00222	$0.00222
Sonnet 5.5	$0.00111	$0.00111
Haiku 4.5	$0.00056	$0.00056

Measured 2mo ago against content hash 267fb353f08f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-skills 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 · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Instructions

Rules for contributing to this repository.

Skill Philosophy

Skills in this repository should be narrowly focused on a specific task or workflow.

A good skill helps an agent take a concrete action, for example:

set up authentication
design a schema
create a Convex function
plan a migration

Do not create skills that mainly provide generic background information or broad documentation. If content is mostly reference material, it should usually live in docs, not as a standalone skill.

Reference material is fine inside a skill when it directly helps complete the task the skill is for.

Before contributing, review the core Agent Skills docs:

If the skill uses bundled scripts, also review Using scripts in skills.

Style Guidelines

No emojis in any markdown files or code comments
Use Yes/No in tables instead of checkmarks or emoji
Keep examples concise and focused
Use // Bad: and // Good: comments in code examples
Follow existing file patterns in skills/

File Structure

Each skill should have:

Clear heading with brief description
"When to Use" section
Code examples showing bad vs good patterns
Complete, runnable examples
Checklist at the end

Maintenance

If skills are added, removed, renamed, or substantially repositioned, update the root README.md
Keep the skill list in the root README.md in sync with the current contents of skills/

Validation

Do not assume a skill is good just because it reads well
Validate skills by trying to use them in a realistic temp project or sandbox
Push the task as far as possible without human help
If human intervention is required, stop and ask explicitly for the exact step needed
After the run, feed what you learned back into the skill with clearer instructions, steps, gotchas, or validation checks
For UI-facing skills, validate the browser flow as part of skill authoring, not just the code or CLI steps

Read the full file on GitHub · 79 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.

2mo ago First seen · 79 lines · 556 tokens per session scan A 267fb353f08f

Subscribe to this mod's changes

agent-skills AGENTS.md is an instructions file published in the GitHub repository get-convex/agent-skills (64 stars, last pushed 24d ago), licensed Apache-2.0. It adds 556 tokens to every session, about $0.0022 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.

Building agents

agent-skills AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
agent-skills AGENTS.mdget-convex/agent-skills	Instructions file	64	24d ago	Apache-2.0	A	556	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

agent-skills: Instructions file for Codex