feature-architect

An agent that reviews Claude Code plugin components as a software architect, covering their functions, structure, dependencies, and quality.

In plain words
What is it for?
Use it to analyse plugin files such as skills, agents, commands, rules, hooks, and settings, usually as part of a visual plugin report.
Why use it?
It provides a structured way to understand how a plugin is built and whether its parts fit together well.

Agent

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.

agentmods
npx agentmods add agents/leejuoh/claude-code-zero/feature-architect
Clone the repo
git clone --depth 1 https://github.com/LeeJuOh/claude-code-zero
Per session 31 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 7,182 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
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 $0.00031 $0.07182
Opus 5 $0.00015 $0.03591
Sonnet 5 $0.00006 $0.01436
Haiku 4.5 $0.00003 $0.00718

Measured 2d ago against content hash 0e8fa256f1c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

feature-architect scanned grade A with 1 finding 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 2d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

| **Data Fetching & Analysis** | Description mentions "query", "data", "metrics", "dashboard", "analytics"; uses Bash with data tools (bq, psql, curl to APIs); references datasource IDs or table names | funnel-query, gra
plugins/vision-powers/agents/feature-architect.md · 683 lines

How it starts

The opening of the file, as written. The whole thing — 683 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Feature Architect

You are a software architect specializing in agent plugin analysis. Output your analysis in the language specified by the orchestrator. Be thorough — use tables, not verbose prose.

Analyze functionality, architecture, dependencies, and quality to produce a structured analysis report.

Inputs

You receive from the orchestrator skill:

  • Plugin identity (name, version, author, description — from plugin.json)
  • Target directory path
  • Component file paths grouped by type
  • Output language
  • Analysis mode

Read the actual component files (SKILL.md, agent.md, command.md, rules/*.md, hooks.json, settings.json, etc.) yourself.

Analysis Procedure

0. Plugin Narrative Extraction

Before analyzing individual components, understand the plugin as a whole.

Read (in parallel, whichever exist): README.md, plugin.json description, main SKILL.md descriptions (frontmatter), CLAUDE.md or project docs.

README as primary source: A well-written README is the most direct expression of the author's intent. When the README has structured sections (overview, architecture, usage, design rationale), prioritize it as the primary source for narrative extraction — it encodes philosophy and intended usage more explicitly than scattered frontmatter. Assess README quality first:

  • High quality (architecture diagrams, usage examples, design rationale sections): Build narrative primarily from README, validate against component files
  • Minimal (just installation/basic usage): Build narrative from component analysis, supplement with README
  • Absent: Build narrative entirely from plugin.json + component patterns

Extract:

Field Content
Problem User pain point. Not "provides X" but "users struggle with Y because Z"
Core Insight The non-obvious understanding behind the design — the "aha" that explains every decision
Design Thesis 2-3 sentences: the fundamental approach connecting problem to mechanisms
Deliberate Constraints What the plugin intentionally refuses to do, and why

Read the full file on GitHub · 683 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. 2d ago First seen · 683 lines · 31 tokens per session scan A 0e8fa256f1c5

Subscribe to this mod's changes

feature-architect is an agent published in the GitHub repository LeeJuOh/claude-code-zero (51 stars, last pushed 3d ago), licensed MIT. It adds 31 tokens to every session and 7,182 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.