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Redis MCP Server

Redis MCP Server

by Yuchenhui
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

zrem

Remove a member from a Redis sorted set using the key and member parameters. Essential for data management in Redis.

Instructions

Remove a member from a Redis sorted set.

Args: key (str): The sorted set key. member (str): The member to remove.

Returns: str: Confirmation message or an error message.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "key": "<key>",
      "member": "<member>"
    },
    "name": "zrem"
  }
}

Input Schema

NameRequiredDescriptionDefault
keyYes
memberYes

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.3.5

TDQS

B3.1/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations provided, so description carries full burden. It mentions return type (confirmation or error) but fails to disclose destructive nature, idempotency, or behavior when member does not exist (e.g., returns 0). Missing critical behavioral traits.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is short and well-structured with clear Args and Returns sections. No unnecessary wording, but missing some details that could be included without bloating.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite having many sibling tools, the description does not differentiate by emphasizing that this tool operates on sorted sets only. The return description is vague ('confirmation message or an error message'). Missing behavioral details that an output schema alone may not cover.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 0%, so description compensates minimally by stating that 'key' is the sorted set key and 'member' is the member to remove. This adds meaning beyond parameter names, but no additional constraints or formats are provided.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action 'Remove a member' and the target 'Redis sorted set'. It distinguishes from sibling tools like srem (remove from set) and hdel (remove from hash) by specifying 'sorted set'.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this tool versus alternatives (e.g., srem for regular sets). The description lacks context on prerequisites, such as the requirement that the key must be a sorted set, or when not to use it.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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