What is Custom-Modes-Roo-Code CLAUDE.md?

Repository instructions describing a collection of custom AI agent configurations for Roo Code, a coding assistant.

Use them when maintaining or extending this Roo Code configuration repository, including its YAML agent definitions and Python utilities.

They provide project context, structure, statistics, and development rules in one reference document.

How jtgsystems/Custom-Modes-Roo-Code configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to jtgsystems/Custom-Modes-Roo-Code. 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/jtgsystems/Custom-Modes-Roo-Code/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/jtgsystems/Custom-Modes-Roo-Code

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/instructions/jtgsystems/custom-modes-roo-code/claude-md/github.svg)](https://agentmods.dev/instructions/jtgsystems/custom-modes-roo-code/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/jtgsystems/custom-modes-roo-code/claude-md"><img src="https://agentmods.dev/badge/instructions/jtgsystems/custom-modes-roo-code/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/jtgsystems/custom-modes-roo-code/claude-md"><img src="https://agentmods.dev/badge/instructions/jtgsystems/custom-modes-roo-code/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 6,852 This file is loaded in full into every session.

When invoked 6,852 The same file — it is already loaded in full.

Security scan A 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	$0.06852	$0.06852
Opus 5.5	$0.02741	$0.02741
Sonnet 5.5	$0.01370	$0.01370
Haiku 4.5	$0.00685	$0.00685

Measured 1mo ago against content hash b81c622964bf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Custom-Modes-Roo-Code CLAUDE.md 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 1mo 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.

curl -O https://raw.githubusercontent.com/jtgsystems/Custom-Modes-Roo-Code/main/agents/core-development/general/python-developer.yaml

CLAUDE.md · 947 lines

How it starts

The opening of the file, as written. The whole thing — 947 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Custom Modes for Roo Code - Claude Code System Reference

This file contains project structure, configuration details, and development guidelines for the Custom Modes for Roo Code repository. Claude Code automatically loads this on startup.

Project Overview

Repository: Custom Modes for Roo Code GitHub URL: https://github.com/jtgsystems/Custom-Modes-Roo-Code Owner: JTG Systems (https://jtgsystems.com) License: MIT License Version: 2025.1 Status: Active and Maintained Primary Language: YAML (Configuration), Python (Tooling)

Description

A comprehensive collection of specialized AI agent configurations for Roo Code, designed for modern software development following 2025 security-first principles and best practices. This project includes Python utilities for validation, conversion, and management of custom modes.

Key Statistics

Total Agents: 171+ specialized configurations
Agent Files: 232 YAML files
Python Scripts: 2 utility scripts
Repository Size: ~2.5MB
Categories: 9 major agent categories
Security Standard: 2025 Security-First Architecture

Repository Structure

Root Directory

/tmp/repo-updates/Custom-Modes-Roo-Code/
├── agents/                    # All agent configurations (232 YAML files)
├── assets/                    # Banner images and visual assets
├── schemas/                   # JSON schema for validation
├── scripts/                   # Python validation and utility scripts
│   └── validate_custom_modes.py    # YAML validation script (195 lines)
├── vs-code/                   # VS Code specific tools and documentation
│   ├── convert_modes.py            # Mode conversion utility (625 lines)
│   └── README.md                   # VS Code integration guide
├── .vscode/                   # VS Code configuration
├── banner.png                 # Repository banner image
├── CLAUDE.md                  # Claude Code system reference (this file)
├── README.md                  # Main documentation (12KB)
├── CONTRIBUTING.md            # Contribution guidelines (6.9KB)
├── SECURITY.md                # Security policy (6.3KB)
├── LICENSE                    # MIT License
├── .gitignore                 # Git ignore patterns
└── researched.md              # Research documentation (18KB)

Read the full file on GitHub · 947 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.

1mo ago First seen · 947 lines · 6,852 tokens per session scan A b81c622964bf

Subscribe to this mod's changes

Custom-Modes-Roo-Code CLAUDE.md is an instructions file published in the GitHub repository jtgsystems/Custom-Modes-Roo-Code (185 stars, last pushed 1mo ago), licensed MIT. It adds 6,852 tokens to every session, about $0.0274 per session on Opus 5.5. 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.

Building agents Claude Code agents ai clean-architecture development-workflow roocode

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 9,715 tokens

Custom-Modes-Roo-Code: Instructions file for Claude Code