Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/ktcrisis/arch7/claude-mdgit clone --depth 1 https://github.com/KTCrisis/arch7Wrote 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.
[](https://agentmods.dev/instructions/ktcrisis/arch7/claude-md)<a href="https://agentmods.dev/instructions/ktcrisis/arch7/claude-md"><img src="https://agentmods.dev/badge/instructions/ktcrisis/arch7/claude-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.01328 | $0.01328 |
| Opus 5 | $0.00664 | $0.00664 |
| Sonnet 5 | $0.00266 | $0.00266 |
| Haiku 4.5 | $0.00133 | $0.00133 |
Grade A, and why
arch7 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md — arch7
What it is
Architecture diagram generator for Excalidraw, exposed as an MCP server. Fork of excalidraw-architect-mcp v0.2.3 (MIT).
Quick commands
pip install -e . # editable install
python -m arch7_mcp # run MCP server (stdio)
arch7 # same, via entry point
Structure
arch7_mcp/
├── core/
│ ├── components.py # 60+ component registry (GCP, Kong, Confluent, Dynatrace, AI...)
│ ├── icons.py # 18 tech SVG icons (simple-icons CC0), auto-matched to components
│ ├── models.py # Pydantic models, ShapeType (incl. CYLINDER_V, CYLINDER_H)
│ └── themes.py # default, dark, colorful, professional
├── engine/
│ ├── layout.py # Sugiyama auto-layout (grandalf), node sizing
│ └── renderer.py # Excalidraw JSON builder, cylinder shapes
├── parsers/
│ ├── mermaid.py # Mermaid → DiagramGraph
│ └── state.py # Stateful modifications
└── server.py # FastMCP server, 4 tools
MCP Tools
| Tool | Input | Output |
|---|---|---|
create_diagram |
nodes[] + connections[] + output_path | .excalidraw file |
mermaid_to_excalidraw |
mermaid syntax + output_path | .excalidraw file |
modify_diagram |
file_path + operations[] | modified .excalidraw |
get_diagram_info |
file_path | text summary |
Component types (component_type field)
Use these for auto-styling — shape + color + badge applied automatically:
- GCP:
gke,cloud run,cloud function,gcs,bigquery,cloud sql,pub/sub,vpc,psc,cloud armor - Kong:
kong,kong konnect - Confluent:
kafka,topic,confluent,schema registry,ksqldb,connect - Databases:
postgresql,mysql,mongodb,dynamodb,clickhouse,cassandra,sqlite,elasticsearch→ CYLINDER_V - Queues:
kafka,rabbitmq,sqs,nats,pulsar,pub/sub→ CYLINDER_H (flattened) - AI/Agentic:
llm,agent,crewai,langchain,mcp,vector,rag - Monitoring:
dynatrace,opentelemetry,prometheus,grafana,datadog - Infra:
nginx,haproxy,envoy,traefik,redis,cloudflare,docker,kubernetes
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.
- 4d ago First seen · 128 lines · 1,328 tokens per session scan A 4fdee2748f9c
arch7 CLAUDE.md is an instructions file published in the GitHub repository KTCrisis/arch7 (1 stars, last pushed 2mo ago), licensed MIT. It adds 1,328 tokens to every session, about $0.0066 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.
Other instructions, from other repositories
excalidraw-skill-pack CLAUDE.md
Instructions for isatimur/excalidraw-skill-pack, covering claude.md, what this is, commands, architecture and monorepo layout (packages/).
excalidraw-mcp CLAUDE.md
Instructions for maaker-ai/excalidraw-mcp, covering excalidraw mcp server, 快速命令, 开发, 构建 & 发布（手动） and 自动发布到 pypi.
excalidraw-icons-mcp CLAUDE.md
Instructions for iagogfe/excalidraw-icons-mcp, covering excalidraw-icons-mcp, ci, conventions, code style and comments.
azure-diagrams-skill AGENTS.md
Instructions for cmb211087/azure-diagrams-skill, covering agents.md - azure architecture diagrams, what it does, prerequisites (cross-platform), how to generate a diagram and conventions for agents.
fcp-drawio CLAUDE.md
Instructions for os-tack/fcp-drawio, covering fcp-drawio, project overview, architecture, key directories and commands.
archdiagram AGENTS.md
Instructions for bharathgnana/archdiagram, covering agents.md, what this repo does, two ways to use it, quick start and conventions.