Propper AI launches open-source Claude plugin for agreement workflows

Propper AI launched a free, open-source plugin for Claude Code and Claude Cowork that helps users prepare contracts, send agreements for signature, and track completion. The release adds 13 skills under Apache 2.0 and could make agreement management easier for teams already working inside Claude.

Why it matters: - Propper AI is trying to move agreement work earlier in the workflow, before documents are sent and mistakes become harder to fix. - The plugin is built to help users catch blanks, compare versions, extract key dates, and manage signature steps from inside Claude. - Propper says the bundle is designed to reduce gaps between document preparation, execution, and follow-up.

What happened: - PropperDocs, Inc. released the Propper plugin for Claude Code and Claude Cowork on September 21, 2026. - Anthropic reviewed and approved the plugin. - The release is an open-source bundle of 13 skills under the Apache 2.0 license. - The bundle packages instructions for preparing documents, sending agreements for signature, and tracking what happens after agreements are sent. - Users can connect a Propper account when they are ready to create drafts, place signature fields, route agreements, and check who still needs to sign.

The details: - The 13 skills cover five areas: pre-send document checks, recurring document generation with Propper Gen, draft creation and signature field placement with Propper Sign, recipient progress tracking and completed-document retrieval, and DocuSign template export auditing or embedded signing setup. - Eleven skills handle tasks directly. - Two shared skills provide authentication, recipient-role, and confirmation instructions used by the other skills. - Users can ask Claude to find unfilled blanks, compare a returned version clause by clause, or extract renewal and notice dates from an existing contract. - Several tasks work without a Propper account, including local document checks, version comparisons, date extraction, template-export audits, and the included nine-template starter pack. - The starter pack includes mutual and unilateral NDAs, a consulting agreement, a statement of work, and an employment offer letter. - The plugin connects through OAuth 2.0 with PKCE, which sends users through a browser sign-in instead of requiring pasted credentials. - Permissions are split by action, with separate scopes for reading agreements, editing drafts, and sending or voiding agreements. - The skills instruct the assistant to ask for explicit confirmation before any send, void, or delete action. - Propper shipped Model Context Protocol support in March 2026, and this release adds packaged workflow instructions on top of that foundation. - The skills are free to download. - In Claude Code, users run /plugin marketplace add mypropper/skills followed by /plugin install propper@propper-marketplace. - Claude Cowork users add the repository under Customize → Plugins. - Claude Team or Enterprise owners can upload the plugin to their organization directly. - Connected workflows use Propper's API, which is included on Business plans starting at $15 per month billed annually. - The Business plan includes unlimited users and 240 completed documents per year. - Propper Gen is free for current customers during beta. - Full documentation and the skill catalog are available at GitHub.

Between the lines: - The release positions Propper less as a standalone e-signature tool and more as infrastructure for agreement handling inside an AI assistant. - The explicit confirmation step before sending or deleting suggests Propper is balancing automation with user control. - Open-source packaging and free download access lower the barrier for teams testing AI-assisted contract workflows. - Grant Peterson, Propper's chief strategy officer and former Docusign CTO, said the company sees preparation, execution, and tracking as the center of intelligent agreement management.

What's next: - Propper says 13 skills is a starting point, not a final version. - The company is likely to use the plugin as a wedge for broader adoption of its agreement platform and API-driven workflows. - Teams using Claude can now test agreement workflows before connecting a paid Propper account.

The bottom line: - Propper is betting that agreement prep, signing, and tracking should happen inside the assistant where users already work, not in separate tools after the fact.