commonplace: Instructions file for Codex

AGENTS.md

commonplace AGENTS.md is an instructions file for Codex, OpenCode from zby/commonplace. It costs 2,852 tokens per session, scanned A, original, CC-BY-4.0.

A repository instruction file for commonplace, a knowledge-base project. The description does not provide enough detail to explain its specific rules or workflows.

In plain words
What is it for?
Use it as project guidance when working in the commonplace repository.
Why use it?
It may help an agent understand the repository's purpose and limits, but the available information does not say exactly what problems it removes.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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 commonplace AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/zby/commonplace/agents-md"><img src="https://agentmods.dev/badge/instructions/zby/commonplace/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2,852 This file is loaded in full into every session.
When invoked 2,852 The same file — it is already loaded in full.
Security scan A 1 finding. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.02852 $0.02852
Opus 5.5 $0.01141 $0.01141
Sonnet 5.5 $0.00570 $0.00570
Haiku 4.5 $0.00285 $0.00285

Measured yesterday against content hash ccc9b667bae0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

commonplace AGENTS.md scanned grade A with 1 finding 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 yesterday.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Downloads: use `curl -fsSL -o <destination> [options] '<URL>'` in a standalone
AGENTS.md · 213 lines

The source is not reproduced here

Licensed CC-BY-4.0

The repository is licensed CC-BY-4.0, 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.

  1. yesterday Changed · +1 lines · +10 tokens per session ccc9b667bae0
  2. 3d ago Changed 9d8992a35d98
  3. 7d ago Changed · +2 lines · +30 tokens per session f6ba765ca8cd
  4. 17d ago Changed · +14 lines · +218 tokens per session d1c596e4dcc5
  5. 23d ago Changed · +2 lines · +35 tokens per session 53d5550ed6f8
  6. 24d ago Changed · +3 lines · +64 tokens per session 57fd4ad89e1e
  7. 25d ago Changed · -30 lines · -3,526 tokens per session cf269f6f792e
  8. 1mo ago Changed · +3 lines · +123 tokens per session a38cade5e996
  9. 1mo ago Changed · -2 lines · -35 tokens per session b07acb23b0c2
  10. 1mo ago First seen · 220 lines · 5,933 tokens per session scan A e5abd382c751

Subscribe to this mod's changes

commonplace AGENTS.md is an instructions file published in the GitHub repository zby/commonplace (92 stars, last pushed today), licensed CC-BY-4.0. It adds 2,852 tokens to every session, about $0.0114 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other instructions, from other repositories