A command that creates a new project with the starter kit’s scaffolding rules and selected profile. Project scaffolding is the initial folder and configuration structure for a new application.

Use it to create a project, read the starter-kit configuration, choose project options, and install the global Claude configuration when it is missing.

It applies shared project standards automatically and can use configured defaults for the project location and profile.

How TheDecipherist/claude-code-mastery-project-starter-kit configures

Reuse

Borrowing it

Nothing to install: this file belongs to TheDecipherist/claude-code-mastery-project-starter-kit. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/TheDecipherist/claude-code-mastery-project-starter-kit/main/.claude/commands/new-project.md

Clone the repo

git clone --depth 1 https://github.com/TheDecipherist/claude-code-mastery-project-starter-kit

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/thedecipherist/claude-code-mastery-project-starter-kit/new-project/github.svg)](https://agentmods.dev/commands/thedecipherist/claude-code-mastery-project-starter-kit/new-project)

Your own site

<a href="https://agentmods.dev/commands/thedecipherist/claude-code-mastery-project-starter-kit/new-project"><img src="https://agentmods.dev/badge/commands/thedecipherist/claude-code-mastery-project-starter-kit/new-project/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.

Your own site · 80×15

<a href="https://agentmods.dev/commands/thedecipherist/claude-code-mastery-project-starter-kit/new-project"><img src="https://agentmods.dev/badge/commands/thedecipherist/claude-code-mastery-project-starter-kit/new-project.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 2,975 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00010	$0.02975
Opus 5.5	$0.00004	$0.01190
Sonnet 5.5	$0.00002	$0.00595
Haiku 4.5	$0.00001	$0.00298

Measured 2mo ago against content hash 0deaceb2c1b5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

new-project scanned grade B 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 2mo 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

- If yes: copy `global-claude-md/CLAUDE.md` → `~/.claude/CLAUDE.md` and `global-claude-md/settings.json` → `~/.claude/settings.json`

.claude/commands/new-project.md · 245 lines

How it starts

The opening of the file, as written. The whole thing — 245 lines — stays where its author put it; the contents beside it link to each section on GitHub.

New Project Scaffold

Create a new project with all best practices from the Claude Code Mastery Guides.

Arguments: $ARGUMENTS

Argument Parsing

Step 0 — Read the config file

Before parsing arguments, read claude-mastery-project.conf (in the starter kit root or ~/.claude/claude-mastery-project.conf as fallback).

Extract the [global] section for root_dir and default_profile.

root_dir — Default parent directory for new projects
default_profile — Profile to use when no profile is specified in arguments (e.g., default_profile = clean). If not set, ask the user as before.

Step 0.0 — Global Claude Config (one-time setup)

Check if the user already has the global Claude config installed:

# Check if global CLAUDE.md exists
ls ~/.claude/CLAUDE.md 2>/dev/null

If ~/.claude/CLAUDE.md does NOT exist:

ASK: "You don't have a global CLAUDE.md yet. Want me to install the Claude Code Mastery global config to ~/.claude/? This sets up security rules, hooks, and standards that apply to ALL your projects. (This is a one-time setup.)"
If yes: copy global-claude-md/CLAUDE.md → ~/.claude/CLAUDE.md and global-claude-md/settings.json → ~/.claude/settings.json
Also copy hooks: mkdir -p ~/.claude/hooks && cp .claude/hooks/verify-no-secrets.sh ~/.claude/hooks/

If ~/.claude/CLAUDE.md DOES exist:

ASK: "You already have a global CLAUDE.md. Want me to check if the starter kit version has anything new to merge in?"
If yes: diff the two files and show what's different. Let the user decide what to merge.
If no: skip and continue.

This step typically only happens once. After the first install, the global config persists across all projects.

Step 0.1 — Resolve the project path

The first argument is the project name or path. Resolve it using root_dir:

Explicit path (starts with ./, ../, ~/, or /) → use as-is
- /new-project ~/code/my-app → creates at ~/code/my-app
- /new-project ./my-app → creates at ./my-app

Read the full file on GitHub · 245 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.

2mo ago First seen · 245 lines · 10 tokens per session scan B 0deaceb2c1b5

Subscribe to this mod's changes

new-project is a command published in the GitHub repository TheDecipherist/claude-code-mastery-project-starter-kit (342 stars, last pushed 4mo ago), licensed MIT. It adds 10 tokens to every session and 2,975 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Planning

new-project next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
new-projectTheDecipherist/claude-code-mastery-project-starter-kit	Command	342	4mo ago	MIT	B	10	Claude Code
checklistgithub/spec-kit	Command	148k	yesterday	MIT	A	13	Claude Code
clarifygithub/spec-kit	Command	148k	yesterday	MIT	A	27	Claude Code
specifygithub/spec-kit	Command	148k	yesterday	MIT	A	13	Claude Code
analyzegithub/spec-kit	Command	148k	yesterday	MIT	A	26	Claude Code
convergegithub/spec-kit	Command	148k	yesterday	MIT	A	35	Claude Code
implementgithub/spec-kit	Command	148k	yesterday	MIT	A	14	Claude Code

claude-code-mastery-project-starter-kit: Command for Claude Code