Is the Common Paper skill free?

Yes. The skill itself is free from CommonPaper/claude-skill. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Common Paper SkillProof Score?

8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 7/10, docs & honesty 5/5.

How do I install Common Paper?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Common Paper with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Common Paper

Query, create, and manage Common Paper contracts (NDAs, CSAs, renewals) via their REST API.

by CommonPaper · CommonPaper/claude-skill

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 8.8/10
Tested: Jul 16, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · 269d7b3

Rare example of a credential-handling skill that gets it right: token is never echoed or passed as a CLI literal, always read from a chmod-600 file, and it documents real API landmines other integrations would hit blind, like the CSA invoice-payment field combo that doesn't error on template creation but crashes with pluralize(nil,nil) the moment someone previews the agreement.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 7/10
Docs & honesty 5/5

What Common Paper does

Talks to the Common Paper contract-management API to answer questions like counts of signed contracts or NDA status with a given counterparty, and to create, send, void, or reassign agreements and templates. Triggers on mentions of Common Paper or contract/agreement/NDA/CSA/signer/renewal questions and requests to onboard a new account.

How to install Common Paper

git clone https://github.com/CommonPaper/claude-skill
mkdir -p ~/.claude/skills
cp -r claude-skill ~/.claude/skills/commonpaper

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Common Paper

/commonpaper Query, create, and manage Common Paper contracts (NDAs, CSAs, renewals) via their REST API.

It also activates on plain-language prompts like these:

How many signed contracts do we have and when do they renew?
Can you send this NDA template to a new counterparty for signature?
Check the status of our CSA agreement with Acme Corp

Frequently asked questions

Is the Common Paper skill free?: Yes. The skill itself is free from CommonPaper/claude-skill. SkillProof publishes the install command and an independent test verdict at no cost.
Does Common Paper work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 16, 2026. Verdict: Tested · Works. Rare example of a credential-handling skill that gets it right: token is never echoed or passed as a CLI literal, always read from a chmod-600 file, and it documents real API landmines other integrations would hit blind, like the CSA invoice-payment field combo that doesn't error on template creation but crashes with pluralize(nil,nil) the moment someone previews the agreement.
What is the Common Paper SkillProof Score?: 8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 7/10, docs & honesty 5/5.
How do I install Common Paper?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Common Paper with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.