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luutuankiet

FreshRSS MCP Server

by luutuankiet

freshrss_unsubscribe

Unsubscribe from any RSS feed by entering its URL, clearing it from your FreshRSS subscriptions.

Instructions

Unsubscribe from a feed.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
paramsYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.2.5

TDQS

B3.3/5.0
Behavior2/5

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

No annotations are present, so the description carries the full burden of behavioral disclosure. It conveys the core action but does not mention consequences, irreversibility, authentication requirements, or what happens if the feed is not currently subscribed. For a mutating/destructive tool, this is a meaningful transparency gap.

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

Conciseness5/5

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

The description is a single concise phrase with no filler or redundancy. It is front-loaded and every word contributes to the meaning.

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

Completeness3/5

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

For a simple one-parameter tool with an output schema, the information is mostly sufficient. However, it does not mention the need to be authenticated or the effect of unsubscribing beyond the basic action, leaving some operational context implicit.

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?

The schema already documents the single required parameter feed_url with a clear description. The tool description adds no additional parameter meaning, but the schema covers the necessary semantics, so a baseline score of 3 is appropriate.

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 states a specific action ('Unsubscribe') and a specific resource ('from a feed'), which clearly distinguishes it from the sibling subscribe tool. Even without additional detail, an agent can tell exactly what this tool does and how it contrasts with freshrss_subscribe.

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?

The description gives no explicit guidance about when to use this tool versus alternatives, such as requiring an existing subscription or needing authentication first. The intended use is broadly implied by the name and the sibling list, but no context or exclusions are provided.

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