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CommonGround: Skill for Claude Code

.agents/skills/cg/SKILL.md

cg is a skill for Claude Code, Codex from Intelligent-Internet/CommonGround. It costs 0 tokens per session (10 once invoked), scanned A, original, Apache-2.0.

A coding-agent skill referenced by a file named SKILL.md. The available description does not explain what tasks or commands the skill supports.

In plain words
What is it for?
The available information is insufficient to say what concrete jobs it helps with.
Why use it?
The supplied information is too limited to identify a specific problem it removes.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is Intelligent-Internet/CommonGround's own configuration. It tells Claude Code and Codex how to work on CommonGround 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 CommonGround configures →

not rated 153repo 5mo ago A scan 0 tokens original Apache-2.0
View source ↗ Intelligent-Internet/CommonGround
Reuse

Borrowing it

Nothing to install: this file belongs to Intelligent-Internet/CommonGround. 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/Intelligent-Internet/CommonGround/main/.agents/skills/cg/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Intelligent-Internet/CommonGround

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 cg

README.md
[![agentmods](https://agentmods.dev/badge/skills/intelligent-internet/commonground/cg/github.svg)](https://agentmods.dev/skills/intelligent-internet/commonground/cg)
Your own site
<a href="https://agentmods.dev/skills/intelligent-internet/commonground/cg"><img src="https://agentmods.dev/badge/skills/intelligent-internet/commonground/cg/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 cg

Your own site · 80×15
<a href="https://agentmods.dev/skills/intelligent-internet/commonground/cg"><img src="https://agentmods.dev/badge/skills/intelligent-internet/commonground/cg.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 10 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 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.00010
Opus 5.5 $0.00000 $0.00004
Sonnet 5.5 $0.00000 $0.00002
Haiku 4.5 $0.00000 $0.00001

Measured 2mo ago against content hash c715cf0e230b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cg 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 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.

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/cg/SKILL.md · 1 lines

What it actually says

../../../examples/skills/cg/SKILL.md

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 · 1 lines · 0 tokens per session scan A c715cf0e230b

Subscribe to this mod's changes

cg is a skill published in the GitHub repository Intelligent-Internet/CommonGround (153 stars, last pushed 5mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 10 tokens. 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 2026-08-30.

LLMagentsaiai-agentsmulti-agent-systemsmultiagent
Related

cg compared with skills from other repositories

cg next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
cgIntelligent-Internet/CommonGroundSkill1535mo agoApache-2.0A0Claude Code, Codex
ai-agent-evaluation-benchmarkingsickn33/agentic-awesome-skillsSkill49kyesterdayMITA31Claude Code
adk-unit-designgoogle/adk-pythonSkill22kyesterdayApache-2.0A181Claude Code, Codex
create-tech-designhumanlayer/humanlayerSkill13kyesterdayApache-2.0A16Claude Code, Codex
iterate-tech-designhumanlayer/humanlayerSkill13kyesterdayApache-2.0A16Claude Code, Codex
implement-outlinehumanlayer/humanlayerSkill13kyesterdayApache-2.0A15Claude Code, Codex
otto-pr-review-loopomnigent-ai/omnigentSkill11kyesterdayApache-2.0A17Claude Code, Codex