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cos

cos is a skill for Claude Code, Codex from George-RD/claude-next-level. It costs 61 tokens per session (6,239 once invoked), scanned B, original, no licence file.

A set of working methods for coordinating multiple coding agents and their tasks.

In plain words
What is it for?
Use it when dispatching agents in waves, polling their progress, merging changes, coordinating workspaces, and routing tasks between add-ons.
Why use it?
It provides guidance for planning parallel work, managing context, recovering from errors, and enforcing quality checks.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

not rated 13repo 4mo ago B scan 61 tokens no licence

Good fit Use it when dispatching agents in waves, polling their progress, merging changes, coordinating workspaces, and routing tasks between add-ons.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/george-rd/claude-next-level/cos
View source ↗ George-RD/claude-next-level
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 George-RD/claude-next-level --skill cos
Clone the repo
git clone --depth 1 https://github.com/George-RD/claude-next-level

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 cos

README.md
[![agentmods](https://agentmods.dev/badge/skills/george-rd/claude-next-level/cos/github.svg)](https://agentmods.dev/skills/george-rd/claude-next-level/cos)
Your own site
<a href="https://agentmods.dev/skills/george-rd/claude-next-level/cos"><img src="https://agentmods.dev/badge/skills/george-rd/claude-next-level/cos/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 cos

Your own site · 80×15
<a href="https://agentmods.dev/skills/george-rd/claude-next-level/cos"><img src="https://agentmods.dev/badge/skills/george-rd/claude-next-level/cos.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,239 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 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 $0.00061 $0.06239
Opus 5.5 $0.00024 $0.02496
Sonnet 5.5 $0.00012 $0.01248
Haiku 4.5 $0.00006 $0.00624

Measured 2mo ago against content hash 319c84d32cd5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

cos 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.

Recursive force deletemediumDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf ~/.chief-of-staff/workspaces/item-{id}

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

archive/chief-of-staff/skills/cos/SKILL.md · 644 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. 2mo ago First seen · 644 lines · 61 tokens per session scan B 319c84d32cd5

Subscribe to this mod's changes

cos is a skill published in the GitHub repository George-RD/claude-next-level (13 stars, last pushed 4mo ago), with no licence file. It adds 61 tokens to every session and 6,239 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Building agentsPlanning
Related

cos compared with skills from other repositories

cos next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
cosGeorge-RD/claude-next-levelSkill134mo agononeB61Claude 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