Proof Skill

proof-skill

A Claude Code skill for working with [Proof](https://proofeditor.ai) documents over HTTP — create, read, edit, comment, suggest, and track presence.

Install

Copy the skill file into your project's Claude Code skills directory:

mkdir -p .claude/skills
curl -sS -o .claude/skills/proof.SKILL.md \
  https://raw.githubusercontent.com/cathrynlavery/proof-skill/main/proof.SKILL.md

Or clone and copy manually:

git clone https://github.com/cathrynlavery/proof-skill.git
cp proof-skill/proof.SKILL.md your-project/.claude/skills/

What it enables

Once installed, your Claude Code agent can:

• Create shared documents on Proof
• Read documents via content negotiation (JSON or markdown)
• Edit with block-level operations (stable refs, revision locking)
• Comment on specific text passages
• Suggest replacements with accept/reject workflow
• Track presence and poll for document events

Works with

• proofeditor.ai — hosted Proof (default, no setup needed)
• Self-hosted Proof SDK — any deployment running the open-source Proof SDK

Self-hosted configuration

The skill defaults to `https://proofeditor.ai`. To point at a self-hosted instance, set the base URL before using Proof commands:

export BASE_URL="https://your-proof-instance.example"

Links

• proofeditor.ai — hosted product
• proof-sdk — open-source SDK
• REFERENCE.md — advanced API reference

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From [founder.codes](https://founder.codes) — practical systems and tools for founders building with AI. Follow [@cathrynlavery](https://x.com/cathrynlavery) on X.