architecture-cowork-plugin: Instructions file for Codex

AGENTS.md

architecture-cowork-plugin AGENTS.md is an instructions file for Codex, OpenCode from navraj007in/architecture-cowork-plugin. It costs 6,302 tokens per session, scanned A, original, Apache-2.0.

A set of instructions for the Architecture Cowork plugin, including how it routes requests and formats large or split outputs.

In plain words
What is it for?
It guides architecture-plugin requests, direct coding fixes, command selection, and reading or writing large single-file or multi-file outputs.
Why use it?
It helps the coding agent follow the plugin's rules and avoid running architecture commands when the user has not explicitly requested them.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: positional $N argument.

This is navraj007in/architecture-cowork-plugin's own configuration. It tells Codex and OpenCode how to work on architecture-cowork-plugin 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 architecture-cowork-plugin configures →

Reuse

Borrowing it

Nothing to install: this file belongs to navraj007in/architecture-cowork-plugin. 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/navraj007in/architecture-cowork-plugin/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/navraj007in/architecture-cowork-plugin

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 architecture-cowork-plugin AGENTS.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/navraj007in/architecture-cowork-plugin/agents-md"><img src="https://agentmods.dev/badge/instructions/navraj007in/architecture-cowork-plugin/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 architecture-cowork-plugin AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/navraj007in/architecture-cowork-plugin/agents-md"><img src="https://agentmods.dev/badge/instructions/navraj007in/architecture-cowork-plugin/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 6,302 This file is loaded in full into every session.
When invoked 6,302 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 $0.06302 $0.06302
Opus 5 $0.03151 $0.03151
Sonnet 5 $0.01260 $0.01260
Haiku 4.5 $0.00630 $0.00630

Measured 11d ago against content hash 489f572435d2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

architecture-cowork-plugin 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 11d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 500 lines

How it starts

The opening of the file, as written. The whole thing — 500 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Archon Plugin — Global Rules

These rules apply to ALL commands in this plugin.

Request Routing — When to Use Commands vs. Handle Directly

Only invoke a plugin command when the user explicitly uses /architect:<command> syntax.

For everything else, handle the request directly as a normal coding or software task:

User says Do this
"fix errors", "fix the build", "it's not compiling" Read the error output, fix source files directly — do NOT run a command
"fix the TypeScript errors in X" Edit the file and fix the types — do NOT run a command
"install dependencies" Run the install command directly
"why is X failing?" Investigate and explain directly
"update file X" Edit the file directly
General coding questions Answer directly

Never route a free-form user message to /architect:blueprint or any other command unless the user explicitly asked for it.

The scaffold commands (/architect:scaffold, /architect:scaffold-component) already include a build + fix step. If the user asks to fix errors after scaffold, they want you to fix the code directly in the scaffolded directory — not re-run the scaffold or generate blueprints.

Output File Splitting

Generate architecture output in full detail — never be vague or truncate content.

When a deliverable is large, split it across multiple files rather than reducing detail:

Deliverable Split pattern
data-model.md data-model-1.md, data-model-2.md, … (group by domain/module)
security-architecture.md security-architecture-auth.md, security-architecture-network.md, …
application-architecture.md application-architecture-backend.md, application-architecture-frontend.md, …
sprint-backlog.md sprint-backlog-1.md, sprint-backlog-2.md, … (one file per sprint or sprint group)
setup-env.md setup-env-services.md, setup-env-local.md, …
ORM schemas schema-{domain}.prisma per domain (e.g. schema-auth.prisma, schema-orders.prisma)
Any other deliverable {name}-{section}.md or {name}-{N}.md

Read the full file on GitHub · 500 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.

  1. 11d ago First seen · 500 lines · 6,302 tokens per session scan A 489f572435d2

Subscribe to this mod's changes

architecture-cowork-plugin AGENTS.md is an instructions file published in the GitHub repository navraj007in/architecture-cowork-plugin (2 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 6,302 tokens to every session, about $0.0315 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 2026-08-31.

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