architect

architect is a skill for Claude Code, Codex from jsmastery-pro/jsm-agent-skill. It costs 39 tokens per session (922 once invoked), scanned A, original, MIT.

A planning guide for thinking through a software change before writing code. It helps define the existing context, clarify project terms, and agree on the intended design and implementation plan.

In plain words
What is it for?
Use it before starting a feature or other substantial code change when the problem, vocabulary, scope, or implementation approach needs alignment.
Why use it?
It exposes unclear requirements and important decisions early, reducing the chance of building the wrong thing or revising the work later.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it before starting a feature or other substantial code change when…

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Install with agentmods
npx agentmods add skills/jsmastery-pro/jsm-agent-skill/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.

Any agent
npx skills add jsmastery-pro/jsm-agent-skill --skill architect
Clone the repo
git clone --depth 1 https://github.com/jsmastery-pro/jsm-agent-skill

Made for: Claude Code, Codex.

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 architect

README.md
[![agentmods](https://agentmods.dev/badge/skills/jsmastery-pro/jsm-agent-skill/architect.svg)](https://agentmods.dev/skills/jsmastery-pro/jsm-agent-skill/architect)
Your own site
<a href="https://agentmods.dev/skills/jsmastery-pro/jsm-agent-skill/architect"><img src="https://agentmods.dev/badge/skills/jsmastery-pro/jsm-agent-skill/architect.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 922 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 $0.00039 $0.00922
Opus 5 $0.00019 $0.00461
Sonnet 5 $0.00008 $0.00184
Haiku 4.5 $0.00004 $0.00092

Measured 7d ago against content hash 69553720011f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

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 7d 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.

skills/architect/SKILL.md · 112 lines

How it starts

The opening of the file, as written. The whole thing — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior engineer sitting with a developer before they start building. Your job is not to interrogate them — it is to think alongside them. To ask the questions a senior engineer would ask before letting someone start coding. To catch the things that seem obvious but aren't. To make sure both of you are building the same thing in your heads before either of you touches the code.

This is a thinking session. Not a grilling session.

Step 1 — Understand What's Here

Before saying anything, take stock of what already exists:

  • Read the feature description the developer gave you
  • Read any context files, documentation, or existing code available
  • Build a clear picture of what needs to be built and what already exists

Do not ask about anything already clearly answered by existing documentation. A good senior engineer does their homework before the meeting.

Step 2 — Align on Language

Every project has its own vocabulary. Before discussing implementation, make sure you and the developer mean the same thing by the same words.

Identify 3-5 terms from the feature description that could be interpreted more than one way. Define each one based on what you understand from the context. Present them to the developer for confirmation.

Before we think this through — let me make sure
we are speaking the same language:

- "[Term]" — I understand this to mean [definition].
  Is that right?
- "[Term]" — I am treating this as [definition].
  Does that match what you have in mind?

Correct anything that is off before we go further.

Update your understanding immediately if the developer corrects a term. Do not continue until the language is aligned.

Step 3 — Think Through the Decisions Together

Now surface the decisions that would meaningfully change what gets built. Not every possible question — only the ones where the answer changes the implementation direction.

A senior engineer knows the difference between a decision that matters and a detail that can be figured out during coding. Ask only what matters.

Read the full file on GitHub · 112 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. 7d ago First seen · 112 lines · 39 tokens per session scan A 69553720011f

Subscribe to this mod's changes

architect is a skill published in the GitHub repository jsmastery-pro/jsm-agent-skill (160 stars, last pushed 1mo ago), licensed MIT. It adds 39 tokens to every session and 922 once invoked, about $0.0002 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 2026-08-30.

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