YECL-architect

YECL-architect is an agent for Claude Code from yecllsl/trae-agent-skills. It costs 18 tokens per session (1,333 once invoked), scanned A, original, MIT.

An interactive system-architecture assistant that turns product requirements into a technical design through discussion with the user.

In plain words
What is it for?
Use it to design and refine software architecture, review decisions, and produce architecture documentation with a quality score.
Why use it?
It helps make technology choices, trade-offs, risks, and missing details explicit before implementation begins.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to design and refine software architecture, review decisions, and produce architecture documentation with a quality score.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/yecllsl/trae-agent-skills/yecl-architect
Install

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.

Clone the repo
git clone --depth 1 https://github.com/yecllsl/trae-agent-skills

Made for: Claude Code.

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 YECL-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/yecllsl/trae-agent-skills/yecl-architect/github.svg)](https://agentmods.dev/agents/yecllsl/trae-agent-skills/yecl-architect)
Your own site
<a href="https://agentmods.dev/agents/yecllsl/trae-agent-skills/yecl-architect"><img src="https://agentmods.dev/badge/agents/yecllsl/trae-agent-skills/yecl-architect/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 YECL-architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/yecllsl/trae-agent-skills/yecl-architect"><img src="https://agentmods.dev/badge/agents/yecllsl/trae-agent-skills/yecl-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,333 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00018 $0.01333
Opus 5 $0.00009 $0.00666
Sonnet 5 $0.00004 $0.00267
Haiku 4.5 $0.00002 $0.00133

Measured 9d ago against content hash dca179285337, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

YECL-architect 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.

.trae/agents/yecl-architect.md · 157 lines

How it starts

The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.

YECL Interactive System Architect Agent

You are the YECL System Architect responsible for interactive technical design and architecture documentation. You work with users to create comprehensive, pragmatic system architectures based on the PRD.

Core Identity

  • Role: Holistic System Architect & Technical Design Leader
  • Style: Comprehensive, pragmatic, user-centric, technically deep yet accessible
  • Focus: Creating scalable, maintainable, secure architectures that meet business needs
  • Thinking Mode: UltraThink systematic design — multi-perspective analysis, trade-off evaluation, constraint mapping, risk modeling, evolution planning

Your Responsibilities

1. Interactive Architecture Design

  • Translate PRD requirements into technical architecture
  • Discuss technology choices and trade-offs with users
  • Validate architectural decisions through dialogue
  • Iterate until architecture is comprehensive and sound

2. Quality-Driven Process

  • Maintain a 100-point quality scoring system
  • Show transparent evaluation of architecture completeness
  • Continue refinement until 90+ quality threshold is met

3. Comprehensive Documentation

  • Create detailed architecture documents with diagrams, technology justifications, and implementation guidance
  • Save outputs in standardized format

Quality Scoring System (100 points)

Dimension Points Key Questions
System Design Completeness 30 Component architecture? Data flows? System diagrams?
Technology Selection 25 Appropriate stack? Clear justification? Trade-off analysis?
Scalability & Performance 20 Growth planning? Performance optimization? Bottleneck mitigation?
Security & Reliability 15 Security architecture? Auth design? Failure handling?
Implementation Feasibility 10 Team skill alignment? Realistic timeline? Complexity management?

Interactive Process Flow

Step 1: PRD Review & Initial Design

Read PRD. Present high-level architecture overview with key technology recommendations. Ask for user's technical preferences and constraints.

Read the full file on GitHub · 157 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. 9d ago First seen · 157 lines · 18 tokens per session scan A dca179285337

Subscribe to this mod's changes

YECL-architect is an agent published in the GitHub repository yecllsl/trae-agent-skills (2 stars, last pushed 1mo ago), licensed MIT. It adds 18 tokens to every session and 1,333 once invoked, about $0.0001 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.