architecture-cowork-plugin: Instructions file for Claude Code

CLAUDE.md

architecture-cowork-plugin CLAUDE.md is an instructions file for Claude Code from navraj007in/architecture-cowork-plugin. It costs 7,438 tokens per session, scanned A, a copy of architecture-cowork-plugin AGENTS.md, Apache-2.0.

Repository instructions for developing an Archon plugin, including where its source files live and how its outputs connect to Archon and SDL. Archon is the surrounding tool that loads and displays the plugin.

In plain words
What is it for?
Use them when editing plugin files, changing diagram output locations or names, or altering behavior visible through inter-process communication.
Why use it?
They prevent changes from being made in the installed copy, where refreshes would erase them, and help keep related components consistent.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: positional $N argument.

This is navraj007in/architecture-cowork-plugin's own configuration. It tells Claude Code 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 →

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/nexper/Code/architecture/backend/architecture-cowork-plugin/.

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/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/navraj007in/architecture-cowork-plugin

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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<a href="https://agentmods.dev/instructions/navraj007in/architecture-cowork-plugin/claude-md"><img src="https://agentmods.dev/badge/instructions/navraj007in/architecture-cowork-plugin/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 7,438 This file is loaded in full into every session.
When invoked 7,438 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 91% copy Near-identical to another mod 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 $0.07438 $0.07438
Opus 5 $0.03719 $0.03719
Sonnet 5 $0.01488 $0.01488
Haiku 4.5 $0.00744 $0.00744

Measured 11d ago against content hash 19575631779b, 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 CLAUDE.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

This is a copy

91% identical to architecture-cowork-plugin AGENTS.md — 81 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

CLAUDE.md · 577 lines

How it starts

The opening of the file, as written. The whole thing — 577 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.


Plugin Development Rules — CRITICAL

Always edit the source repo, never the installed location

The plugin exists in two places:

  • Source repo (edit here): /Users/nexper/Code/architecture/backend/architecture-cowork-plugin/
  • Installed location (read-only): ~/.archon/plugins/architecture-cowork/

NEVER edit files under ~/.archon/plugins/architecture-cowork/. Archon pulls the plugin from GitHub on refresh, which overwrites any changes made there. All edits MUST be made in the source repo, then committed and pushed to GitHub.

After pushing, Archon will pick up the changes on next refresh. If immediate effect is needed, copy the changed file to the installed location as well — but the source repo commit is the only durable change.

Keeping plugin, Archon, and SDL in sync

Before making any plugin change that touches diagram output paths, file naming, or IPC-visible behaviour:

  1. Check Archon's scannermvp/archon/src/renderer/components/VisualiseStageView.tsx scans architecture-output/ and architecture-output/diagrams/ for .mmd/.png/.svg. Any new output folder the plugin writes to must be covered by Archon's scan, or diagrams won't appear.
  2. Check SDL typesmvp/archon/src/shared/types.ts and backend/architecture/packages/sdl/ define the data contracts. Plugin commands must not reference SDL fields that don't exist in the schema.
  3. Test impact — if the change affects scaffold output (file names, folder structure, env var format), check whether the Archon Actions tab, env config dialog, and dev server components still work correctly with the new output.
  4. Never break the .mmd → Diagrams tab pipeline — the plugin writes .mmd files; Archon reads and renders them. Canonical filenames live in diagram-patterns/SKILL.md. Any rename there requires a matching update in Archon's display names if shown to the user.

Change workflow

Read the full file on GitHub · 577 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 · 577 lines · 7,438 tokens per session scan A 19575631779b

Subscribe to this mod's changes

architecture-cowork-plugin CLAUDE.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 7,438 tokens to every session, about $0.0372 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to architecture-cowork-plugin AGENTS.md, differing in 81 lines, and is treated as a copy.

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