MCP Tool Reference Medium Risk

set

Set a Redis key-value pair with optional expiration

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

@modelcontextprotocol/server-redis Write

WHEN AI AGENTS USE THIS TOOL

AI agents use set to create or modify resources in Redis. 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 SET

Without a policy, an AI agent could call set 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 Redis.

RECOMMENDED POLICY

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

redis.yaml

tools:
  set:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Redis policy for all 4 tools.

DETAILS

Tool Name

set

MORE REDIS TOOLS

get Read

Get value by key from Redis

list Read

List Redis keys matching a pattern

delete Destructive

Delete one or more keys from Redis

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

FREQUENTLY ASKED QUESTIONS

What does the set tool do?

Set a Redis key-value pair with optional expiration. It is categorised as a Write tool in the Redis MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set?

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

What risk level is set?

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

Can I rate-limit set?

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

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

set is provided by the Redis MCP server (@modelcontextprotocol/server-redis). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

ENFORCE POLICIES ON REDIS

Open source. One binary. Zero dependencies.

VIEW ON GITHUB Full Redis policy →

set