Skip to main content
Glama
veluralabs

Zoho Mail MCP

by veluralabs

zoho_remove_all_labels_from_threads

Remove all labels from one or more email threads. Use it to clear every label from entire conversations in a single call.

Instructions

Remove every label from whole threads.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
folderIdNoFolder ID (from zoho_list_folders). Pass as a string — Zoho IDs are 64-bit and lose precision as JSON numbers.
threadIdYes
isArchiveNoSet true when the targets are archived emails
isFolderSpecificNoRestrict the action to one folder (then folderId is required)

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

B3.1/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=false, openWorldHint=true, and destructiveHint=false, so the safety profile is partly conveyed. The description adds the bulk-removal/whole-thread scope, which is useful behavioral context, but says nothing about reversibility, permissions, or rate limits. No contradiction with the annotations.

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?

A single front-loaded sentence with zero filler. It is appropriately terse, though so brief that it omits details an agent at this complexity level would benefit from.

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?

For a 4-parameter mutation tool with no output schema, the description is thin. It covers neither the conditional use of isArchive/isFolderSpecific nor the distinction from the email-scoped sibling, leaving the agent to infer routing from the tool name alone.

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 75%, so most parameters (folderId, threadId, isArchive, isFolderSpecific) are already documented with patterns and Zoho ID precision notes. The description adds no parameter meaning of its own, which is acceptable at this coverage level.

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?

States a specific verb (remove), resource (labels), and scope (whole threads, every label), so the agent knows exactly what the operation does. It does not explicitly name the email-level sibling zoho_remove_all_labels_from_emails, though the resource scope implicitly separates them.

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 offers no when-to-use, when-not-to-use, or alternative guidance. It never explains when to prefer this over zoho_remove_all_labels_from_emails, nor when the isArchive/isFolderSpecific flags should drive selection.

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