MCP Tool Reference Medium Risk

create_branch

Create a development branch within a project

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

neondatabase/mcp-server-neon Write

WHEN AI AGENTS USE THIS TOOL

AI agents use create_branch to create or modify resources in Neon. 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 CREATE_BRANCH

Without a policy, an AI agent could call create_branch 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 Neon.

RECOMMENDED POLICY

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

neon.yaml 
tools:
  create_branch:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Neon policy for all 29 tools.

DETAILS

Tool Name

create_branch

Category

Write

MCP Server

Neon MCP Server

Risk Level

Medium

MORE NEON TOOLS

create_project Write
Create a new Neon project
complete_query_tuning Read
Apply tuning changes
describe_branch Read
Fetch branch details
describe_project Read
Retrieve detailed project information
describe_table_schema Read
Get detailed table structure
fetch Read
Retrieve specific resource details
get_connection_string Read
Return database connection details
get_database_tables Read
List database tables

View all 29 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 create_branch tool do?

Create a development branch within a project. It is categorised as a Write tool in the Neon MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_branch?

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

What risk level is create_branch?

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

Can I rate-limit create_branch?

Yes. Add a rate_limit block to the create_branch 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 create_branch completely?

Set action: deny in the Intercept policy for create_branch. 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 create_branch?

create_branch is provided by the Neon MCP server (neondatabase/mcp-server-neon). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

ENFORCE POLICIES ON NEON

Open source. One binary. Zero dependencies.

VIEW ON GITHUB Full Neon policy →