codex_canvas_mcp: Instructions file for Codex

AGENTS.md

codex_canvas_mcp AGENTS.md is an instructions file for Codex, OpenCode from mrchris-ai/codex_canvas_mcp. It costs 1,672 tokens per session, scanned A, original, no licence file.

A set of AGENTS.md project instructions for the codex_canvas_mcp codebase. It covers engineering rules, security requirements, how changes should be made, and how to verify them.

In plain words
What is it for?
Use it when working on mrchris-ai/codex_canvas_mcp to guide implementation, security review, change discipline, and verification.
Why use it?
It gives a coding agent the project’s local rules before it edits or reviews code. This helps avoid changes that violate security or project practices.

Instructions file for CodexOpenCode

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

This is mrchris-ai/codex_canvas_mcp's own configuration. It tells Codex and OpenCode how to work on codex_canvas_mcp 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 codex_canvas_mcp configures →

Reuse

Borrowing it

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

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 codex_canvas_mcp AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/mrchris-ai/codex_canvas_mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/mrchris-ai/codex_canvas_mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,672 This file is loaded in full into every session.
When invoked 1,672 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01672 $0.01672
Opus 5.5 $0.00669 $0.00669
Sonnet 5.5 $0.00334 $0.00334
Haiku 4.5 $0.00167 $0.00167

Measured yesterday against content hash a9c618789cb5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

codex_canvas_mcp 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 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.

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 · 51 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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 · +13 lines · +550 tokens per session a9c618789cb5
  2. 15d ago Changed · +1 lines · +99 tokens per session 61ef22d1ac74
  3. 18d ago Changed · +2 lines · +400 tokens per session fee5cab42c04
  4. 2mo ago First seen · 35 lines · 623 tokens per session scan A aaacd07dbee8

Subscribe to this mod's changes

codex_canvas_mcp AGENTS.md is an instructions file published in the GitHub repository mrchris-ai/codex_canvas_mcp (0 stars, last pushed today), with no licence file. It adds 1,672 tokens to every session, about $0.0067 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.

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