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OfirOhan

Instatus MCP Server

by OfirOhan

List maintenances

list_maintenances
Read-only

Retrieve maintenance windows for a status page to view scheduled, active, and past service downtime.

Instructions

List scheduled, in-progress and past maintenance windows on a status page.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
pageNoPage number (default 1)
pageIdYesStatus page ID (from list_status_pages)
per_pageNoItems per page, 1-100 (default 50)

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.6/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds that all three lifecycle states are returned, which is useful context, but says nothing about ordering, pagination behavior, or result volume.

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?

A single front-loaded sentence with the resource and scope stated immediately and zero wasted words.

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

Completeness4/5

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

For a simple read-only list with a fully documented schema and annotations carrying the safety profile, the description covers what is needed to call it. The only minor gap is the unexplained return shape, since no output schema exists.

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 description coverage is 100%, so all three parameters (page, pageId, per_page) are already documented in the schema. The description adds no format, default, or sourcing detail beyond what the schema provides, which is the expected baseline.

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

Purpose4/5

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

Names a specific verb (List) and resource (maintenance windows) and scopes it to a status page, with the covered statuses (scheduled, in-progress, past) spelled out. It does not explicitly distinguish itself from the sibling write tool schedule_maintenance, but the read/write split is inferable.

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

Usage Guidelines3/5

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

Usage is only implied — an agent can infer this is the way to read maintenance windows — but there is no explicit when-to-use statement, no note that pageId must come from list_status_pages (that lives only in the schema), and no mention of alternatives.

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