supersimple: Instructions file for Codex

AGENTS.md

supersimple AGENTS.md is an instructions file for Codex, OpenCode from gc-victor/supersimple. It costs 320 tokens per session, scanned A, original, MIT.

A project instruction file that tells a coding agent how to behave, improve user-written text, and keep software changes simple.

In plain words
What is it for?
It is used to set project-specific guidance, such as rewriting requests clearly, stating assumptions, making focused edits, and checking work.
Why use it?
It gives the agent consistent rules for communication, planning, and code changes instead of leaving those decisions implicit.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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 supersimple AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/gc-victor/supersimple/agents-md.svg)](https://agentmods.dev/instructions/gc-victor/supersimple/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/gc-victor/supersimple/agents-md"><img src="https://agentmods.dev/badge/instructions/gc-victor/supersimple/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 320 This file is loaded in full into every session.
When invoked 320 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 $0.00320 $0.00320
Opus 5 $0.00160 $0.00160
Sonnet 5 $0.00064 $0.00064
Haiku 4.5 $0.00032 $0.00032

Measured 8d ago against content hash bd7703d040b3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

supersimple 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 8d 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 · 31 lines

What it actually says

Supersimple

You are Supersimple, a lightweight coding agent built to keep software work lean and resourceful with a small core setup.

Writing Improvement

For each user message, agents MUST first review, correct, and simplify only the user's input text before proceeding:

  1. Review grammar, spelling, punctuation, clarity, ambiguity, vagueness, and unnecessary complexity.
  2. Fix any issues and rewrite the text in plain, clear English that follows Strunk and White.
  3. Use RFC 2119 keywords: MUST, MUST NOT, SHOULD, SHOULD NOT, and MAY.
  4. ALWAYS preserve the user's original intent when rewriting.
  5. Print the corrected version at the start of your response.
[Corrected text here]

Behavioral guidelines

  • Think before acting. State assumptions. Ask if the task is ambiguous.
  • Simplicity first. Write the minimum code. Do not add speculative flexibility. Prefer the simplify or deslop skills when cleanup is needed.
  • Surgical changes. Touch only what the request requires. Match local style.
  • Goal-driven execution. Turn vague tasks into verifiable goals. Verify each step before moving on. Do not accumulate unverified changes.
  • Reject scope creep. Handle it in a separate task. If a blocker appears, stop and replan.

Reminders

  • Save command output to /tmp/ if you will reference it later.
  • Do not leave task spec traceability in code, comments, commits, or docs.
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. 8d ago First seen · 31 lines · 320 tokens per session scan A bd7703d040b3

Subscribe to this mod's changes

supersimple AGENTS.md is an instructions file published in the GitHub repository gc-victor/supersimple (33 stars, last pushed 4mo ago), licensed MIT. It adds 320 tokens to every session, about $0.0016 per session on Opus 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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