MCP Tool Reference Medium Risk

save_document

Save standalone documents to DataHub's knowledge base

Part of the DataHub MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

mcp-server-datahub Write

WHEN AI AGENTS USE THIS TOOL

AI agents use save_document to create or modify resources in DataHub. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

WHY ENFORCE A POLICY ON SAVE_DOCUMENT

Without a policy, an AI agent could call save_document repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach DataHub.

RECOMMENDED POLICY

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

datahub.yaml 
tools:
  save_document:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full DataHub policy for all 21 tools.

DETAILS

Tool Name

save_document

Category

Write

MCP Server

DataHub MCP Server

Risk Level

Medium

MORE DATAHUB TOOLS

add_tags Write
Add tags to entities or schema fields
add_terms Write
Add glossary terms to entities or schema fields
add_owners Write
Add ownership assignments to entities
set_domains Write
Assign domain membership for entities
update_description Write
Update or remove descriptions for entities or fields
add_structured_properties Write
Manage structured properties on entities
search Read
Search DataHub using structured keyword search with boolean logic
get_lineage Read
Retrieve upstream or downstream lineage for any entity

View all 21 tools →

SIMILAR WRITE TOOLS ON OTHER SERVERS

create_table Airtable
Create a new table with fields
update_table Airtable
Update a table's name or description
create_field Airtable
Add a new field to a table
update_field Airtable
Modify an existing field
create_record Airtable
Add a new record
update_record Airtable
Modify an existing record

RELATED READING

FREQUENTLY ASKED QUESTIONS

What does the save_document tool do?

Save standalone documents to DataHub's knowledge base. It is categorised as a Write tool in the DataHub MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on save_document?

Add a rule in your Intercept YAML policy under the tools section for save_document. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the DataHub MCP server.

What risk level is save_document?

save_document is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit save_document?

Yes. Add a rate_limit block to the save_document rule in your Intercept policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block save_document completely?

Set action: deny in the Intercept policy for save_document. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides save_document?

save_document is provided by the DataHub MCP server (mcp-server-datahub). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

ENFORCE POLICIES ON DATAHUB

Open source. One binary. Zero dependencies.

VIEW ON GITHUB Full DataHub policy →