agentmods.dev

argus: Skill for Claude Code

.agents/skills/add-backend/SKILL.md

add-backend is a skill for Claude Code, Codex from drn/argus. It costs 129 tokens per session (2,579 once invoked), scanned A, original, no licence file.

A development guide for adding a new coding-agent command-line program to the Argus system.

In plain words
What is it for?
It is for researching a command-line agent and connecting it to Argus with matching support for its existing agent backends.
Why use it?
It helps avoid missing the integrations needed for sessions, permissions, tools, defaults, tests, and documentation when adding an agent.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is drn/argus's own configuration. It tells Claude Code and Codex how to work on argus itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything argus configures →

not rated 11repo +1 changed yesterday A scan 129 tokens no licence
View source ↗ drn/argus
Reuse

Borrowing it

Nothing to install: this file belongs to drn/argus. 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/drn/argus/master/.agents/skills/add-backend/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/drn/argus

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 add-backend

README.md
[![agentmods](https://agentmods.dev/badge/skills/drn/argus/add-backend/github.svg)](https://agentmods.dev/skills/drn/argus/add-backend)
Your own site
<a href="https://agentmods.dev/skills/drn/argus/add-backend"><img src="https://agentmods.dev/badge/skills/drn/argus/add-backend/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.

agentmods 80×15 button for add-backend

Your own site · 80×15
<a href="https://agentmods.dev/skills/drn/argus/add-backend"><img src="https://agentmods.dev/badge/skills/drn/argus/add-backend.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 129 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,579 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 unknown 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 $0.00129 $0.02579
Opus 5.5 $0.00052 $0.01032
Sonnet 5.5 $0.00026 $0.00516
Haiku 4.5 $0.00013 $0.00258

Measured yesterday against content hash 27a90f1bb274, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

add-backend 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 yesterday.

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.

.agents/skills/add-backend/SKILL.md · 144 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. yesterday Changed · +14 lines 27a90f1bb274
  2. 9d ago Changed 8dea79f9813c
  3. 22d ago Changed · +6 lines 0eda56a2bbf6
  4. 25d ago First seen · 124 lines · 129 tokens per session scan A 3981a4335382

Subscribe to this mod's changes

add-backend is a skill published in the GitHub repository drn/argus (11 stars, last pushed yesterday), with no licence file. It adds 129 tokens to every session and 2,579 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-10-13.

Building agents
Related

add-backend compared with skills from other repositories

add-backend next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
add-backenddrn/argusSkill11yesterdaynoneA129Claude Code, Codex
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill313k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143kyesterdayMITA103Claude Code