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.
npx agentmods add instructions/jtgsystems/custom-modes-roo-code/claude-mdgit clone --depth 1 https://github.com/jtgsystems/Custom-Modes-Roo-CodeWrote 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.
[](https://agentmods.dev/instructions/jtgsystems/custom-modes-roo-code/claude-md)<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="Measured on agentmods" height="20"></a>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 | $0.06852 | $0.06852 |
| Opus 5 | $0.03426 | $0.03426 |
| Sonnet 5 | $0.01370 | $0.01370 |
| Haiku 4.5 | $0.00685 | $0.00685 |
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 3d 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 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)
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.
- 3d ago First seen · 947 lines · 6,852 tokens per session scan A b81c622964bf
Custom-Modes-Roo-Code CLAUDE.md is an instructions file published in the GitHub repository jtgsystems/Custom-Modes-Roo-Code (182 stars, last pushed 3mo ago), licensed MIT. It adds 6,852 tokens to every session, about $0.0343 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.
Other instructions, from other repositories
dotnet-pilot CLAUDE.md
Instructions for zdanovichnick/dotnet-pilot, covering claude.md, repository context, layout, authoring rules and validating plugin changes.
rule-link AGENTS.md
AGENTS.md instructions for hangboss1761/rule-link, covering agents.md, project overview, development commands, architecture and core modules.
rule-link CLAUDE.md
Claude Code instructions for hangboss1761/rule-link, a project described as: A CLI tool to manage AI programming tool rule files through symlinks.
AutoAgents AGENTS.md
Instructions for liquidos-ai/AutoAgents, covering autoagents repository guidelines, project structure & module organization, code quality, naming conventions and error handling.
hatch3r CLAUDE.md
Instructions for hatch3r/hatch3r, covering hatch3r — development instructions, architecture, development commands, two-axis pillar framework (2.0.0) and orchestrator self-discipline (bypass protection).
aeon CLAUDE.md
Instructions for aeonfun/aeon, covering aeon, how aeon works, strategy, voice and soul file hierarchy (read in this order).