What is the Definely Connector?
The Definely Connector integrates the Definely legal AI platform directly into Claude. It allows you to upload contracts and legal documents and immediately analyse them for defined terms, undefined terms, cross-references, drafting issues, and more — all without leaving your Claude conversation.
Definely provides the deterministic layer - structural certainty, control, and procedural accuracy - on top of general-purpose AI. The Connector brings Definely's tools (Draft, Proof, Vault, Issues List, and more) into Claude so that AI-generated analysis is grounded in reliable, rules-based document intelligence rather than best-guess reasoning.
Important: The Definely Connector does not replace the Microsoft Word add-in. Word remains where legal documents are reviewed, finalised, and executed. The Connector extends Definely's capabilities into new environments - Claude, and in future potentially ChatGPT, Copilot, and firm-specific AI platforms - with different use cases such as mobile review, bulk processing, and cross-document analysis.
Requirements
An active Definely licence (Cloud suite)
A Definely account with valid credentials (the email address associated with your Definely licence)
Claude access - via Claude.ai (web), Claude Desktop, or the Claude mobile app
How to Connect
MCP connector:
Open Claude (desktop, web, or mobile app)
Go to Customise → Connectors
Find Definely in the connector list
Sign in with your Definely email credentials
Once connected, all Definely tools are immediately available in your Claude conversations
Tip: You only need to connect once. After signing in, the connector is available across all your Claude sessions, including on mobile.
Definely Plugin:
Note: The Definely Plugin must be enabled by your IT team and is currently only available in Claude Cowork.
Open Claude (desktop) and navigate to Cowork.
Go to Customize → Organisation Plugins.
Click the + button, then under Plugins → Your Organization, select Definely.
If you don’t see Definely listed under Your Organization, contact your IT team.
Click Install.
If you want to use Definely Skills in Claude chat, you need to manually add the skills. Contact your IT team to get the Definely skills.
Getting Started: The Three-Step Workflow
Every Definely session follows a mandatory three-step process:
Step 1 — Upload your document
Tell Claude to upload your document to Definely. Example:
"Upload this NDA to Definely."
Step 2 — Prepare the document
Claude will automatically prepare the document for analysis after upload. This step is handled in the background.
Step 3 — Analyse
Once the document is prepared, you can run any of the analysis tools below.
Tip: You can chain multiple analyses in one message after upload, e.g. "Upload this agreement, then find all defined terms and flag any undefined ones."
Tip: The skills take care of the first two steps on the background.
Core Capabilities
Capability | What It Does |
Defined Terms | Lists every capitalised or formally defined term in the document |
Undefined Terms | Identifies terms used as if defined but never actually defined |
Reference Report | Maps all cross-references and flags broken or circular ones |
Ask From Document | Ask any questions about the uploaded document |
Vault Search | Searches your document library semantically or by keyword |
Issues List | Generates a full drafting issues report from the comments, track changes and markups in the document |
Proof Check | Reviews specific clauses or sections for errors and inconsistencies |
Bulk & Multi-Document Processing
One key advantage of the Connector over the Word add-in is that it is not limited to the document currently open. You can point Claude at a folder or a set of documents and run bulk operations, for example:
Cross-document consistency checks - e.g. verify that named entities, defined terms, or party names are consistent across an entire document suite
Bulk proof checks - run proofreading across all documents in a folder
If you have other Claude connectors enabled (e.g. Google Drive), you can point Claude directly at a folder in your connected storage and process its contents.
Output Formats
After running any analysis, you can ask Claude to present the results in different formats:
Natural language summary — Claude explains findings conversationally (default)
HTML — interactive, shareable report that can be opened in a browser and shared with colleagues
DOCX — downloadable Word document to send to a partner or attach to an email
Table — structured tabular format for easy scanning
Simply ask: "Put the results in HTML format" or "Give me this as a Word doc."
Using the Connector on Mobile
The Definely Connector works on the Claude mobile app (iOS and Android). This means you can review documents, run issues lists, and generate reports on the go — without needing your laptop.
Example scenario: You are on a train heading home. A senior partner emails you asking for a review of a contract. You open the Claude mobile app, upload the document from the email attachment, and ask for an issues list. Within seconds you have a structured report you can share back.
If you also have a Gmail or Outlook connector enabled in Claude, you can ask Claude to read the email directly and combine the instructions from the email with the Definely analysis — all from your phone.
Combining with Other Claude Connectors
The Definely Connector becomes even more powerful when used alongside other Claude connectors:
Gmail / Outlook - ask Claude to read an email from a colleague, extract their instructions, and combine them with a Definely issues list or proof report
Google Drive - point Claude at a folder in your Drive and run bulk Definely analysis across all documents in it
Other integrations - any connector available in Claude can be combined with Definely in a single conversation
Prompt Library
Use the prompts below directly in Claude after uploading your document. They are organised by task category.
Document Upload & Setup
|
Defined Terms Analysis
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Undefined Terms Analysis
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Cross-Reference & Internal Consistency Checks
|
Drafting Issues & Quality Control
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Clause-Level Proof Checking
|
Vault Search: Finding Precedents & Related Documents
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Comparative & Multi-Document Analysis
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Risk & Issue Flagging
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Due Diligence
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Negotiation Preparation
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Workflow & Efficiency
|
Tips for Best Results
Be specific about clauses — the more precise your request, the more targeted the analysis (e.g. "Check clause 15.3" rather than "check the liability section").
Chain requests — after uploading, you can ask several questions in one message to save time.
Use the vault proactively — if you are drafting, search for precedents first before starting from scratch.
Ask for prioritisation — if the issues list is long, ask Claude to rank issues by severity or likely negotiating impact.
Combine with Claude's drafting ability — after Definely identifies an issue, ask Claude to suggest revised drafting.
Choose your output format — ask for HTML for shareable interactive reports, DOCX for formal deliverables, or table format for quick scanning.
Use it on mobile — the Connector works on the Claude mobile app, so you can review documents on the go without your laptop.
Combine connectors — if you have Gmail or Google Drive connected, you can pull in email instructions or process entire folders alongside Definely analysis.
Consistency & Reliability
The analysis produced by the Definely Connector is deterministic and rules-based - it uses the same tools and engine as the Definely Word add-in and web platform. Running the same analysis on the same document will produce identical results every time. Claude does not guess or improvise when using Definely tools; it calls the tools and reports back exactly what they return.
Limitations to Be Aware Of
Definely analyses documents you upload in the current session. Ensure you have the right version of a document before uploading.
Very large documents may take longer to process.
Definely identifies drafting issues but does not give legal advice. Professional judgment remains essential.
Vault search results depend on what documents have been stored in your Definely vault.
The Connector requires an active Definely licence and valid credentials.
Troubleshooting
The hosted MCP server is not available for this user. Check with your Definely admin or representative to confirm that you’re licensed for this product. |
You don’t have access to use this tool. Your Definely account doesn’t have the required permissions for this tool. For example, |
The Claude may have generated the token incorrectly, please try again. |
Authentication fails or token is rejected
|
Tools not appearing in my MCP client Re-authenticate if the connection was previously established. |
FAQ
Can multiple users connect to the same MCP server? Yes. Each user authenticates individually through the browser OAuth flow. The server resolves each request to the authenticated user and enforces their specific permissions and feature gates. |
You do not have permission to use this tool The MCP server can only access data that the authenticated user has permission to view in Definely. Vault project queries are scoped to projects the user can access, and knowledge source queries are limited to documents uploaded by the user in the Claude session. |
Does this support conversation history? Sessions are preserved in Claude’s conversation history; however, documents must be re-uploaded to the Definely server if the retention period has expired. |