Borrowing it
Nothing to install: this file belongs to aviraldua93/architect-ai. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/aviraldua93/architect-ai/main/CLAUDE.mdgit clone --depth 1 https://github.com/aviraldua93/architect-aiWrote 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/aviraldua93/architect-ai/claude-md)<a href="https://agentmods.dev/instructions/aviraldua93/architect-ai/claude-md"><img src="https://agentmods.dev/badge/instructions/aviraldua93/architect-ai/claude-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.
<a href="https://agentmods.dev/instructions/aviraldua93/architect-ai/claude-md"><img src="https://agentmods.dev/badge/instructions/aviraldua93/architect-ai/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.01853 | $0.01853 |
| Opus 5 | $0.00927 | $0.00927 |
| Sonnet 5 | $0.00371 | $0.00371 |
| Haiku 4.5 | $0.00185 | $0.00185 |
Grade A, and why
architect-ai 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 9d 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 — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ArchitectAI — Claude Certified Architect Study Tool
AI-powered study tool for the Claude Certified Architect (Foundations) exam. The codebase IS the curriculum — every architectural pattern the exam tests is implemented here.
Architecture
Three-tier architecture, each tier adding capability:
| Tier | Name | Description |
|---|---|---|
| 1 | Offline CLI | Question bank, study mode, mock exams — no API key required |
| 2 | MCP Server | Expose study tools via Model Context Protocol for Claude Desktop |
| 3 | BYOK Live Agents | Bring-your-own-key agentic workflows with real Claude API calls |
Key Patterns
- Hub-and-spoke coordination: Coordinator agent controls all subagent communication
- Subagent isolation: Subagents never share state — explicit context passing only
- Agentic loops with
stop_reason: Loops terminate onend_turn, not arbitrary limits - Programmatic workflow enforcement: Workflows enforced via code, not prompt instructions
Exam Domains
| Domain | Name | Weight | Source |
|---|---|---|---|
| 1 | Agentic Architecture & Orchestration | 27% | src/agents/ |
| 2 | Tool Design & MCP Integration | 18% | src/tools/, src/mcp/ |
| 3 | Claude Code Configuration & Workflows | 20% | src/cli/, .claude/ |
| 4 | Prompt Engineering & Structured Output | 20% | src/prompts/ |
| 5 | Context Management & Reliability | 15% | src/context/ |
Task Statements
Domain 1 — Agentic Architecture & Orchestration 1.1 Agentic Loops · 1.2 Multi-Agent Orchestration · 1.3 Subagent Invocation · 1.4 Workflow Enforcement · 1.5 Agent SDK Hooks · 1.6 Task Decomposition · 1.7 Session State
Domain 2 — Tool Design & MCP Integration 2.1 Tool Descriptions as Selection Mechanism · 2.2 Structured Error Responses · 2.3 Tool Choice Modes · 2.4 MCP Resources, Tools & Prompts · 2.5 Built-in vs Custom Tools
Domain 3 — Claude Code Configuration & Workflows 3.1 CLAUDE.md Hierarchy · 3.2 Slash Commands & Skills · 3.3 Path Rules with Glob Patterns · 3.4 Plan Mode Workflow · 3.5 Iterative Refinement · 3.6 CI/CD Integration
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.
- 9d ago First seen · 160 lines · 1,853 tokens per session scan A 67c05dd8bd73
architect-ai CLAUDE.md is an instructions file published in the GitHub repository aviraldua93/architect-ai (5 stars, last pushed 2mo ago), licensed MIT. It adds 1,853 tokens to every session, about $0.0093 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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