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thenavidm

Lemon Squeezy MCP Server

by thenavidm

Activate license

activate_license
Destructive

Activate a Lemon Squeezy license instance with a selected private profile credential; customer metadata stays private and no global API-key fallback is used.

Instructions

Use the selected private profile license credential for native activate license. No global API-key fallback; customer metadata stays private.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
accountNoExact private profile label. Does not prove store ownership; mode applies to the main API key only.
confirmNoSet true only when the user asked for exactly this action.
payloadNoComplete native JSON object body. JSON:API uses data/type/id/attributes/relationships. No mixing with body flags or payload_file. License credential is private configuration, never body input.
payload_fileNoAbsolute regular non-symlink native JSON body file at most 1 MiB; cannot mix with payload or body flags.
instance_nameNoNew native activation instance label.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv3.0.0
    • changedInput schema / properties / confirm / description
      Previous value: -"Explicit approval for this requested effect, including private output files."New value: +"Set true only when the user asked for exactly this action."
  2. First observedv2.0.0

TDQS

C2.8/5.0
Behavior3/5

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

Annotations already declare destructiveHint=true, openWorldHint=true, and idempotentHint=false. The description does add genuine context beyond them: it says the credential is private configuration that never enters the body, that customer metadata stays private, and that there is no global API-key fallback. It nonetheless fails to describe what the destructive activation actually destroys or what the resulting state is.

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

Conciseness3/5

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

Two short sentences with no filler, and the credential/fallback constraint is front-loaded. The phrasing 'native activate license' is awkward and slightly redundant, so it is compact but not especially clean or well-structured.

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 5-parameter, nested-object, destructive mutation tool with no output schema, the description covers credential handling but omits return values, the resulting activation state, and any side effects of the destructive flag. It is adequate given the rich inline schema, but leaves real behavioral gaps.

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 the schema already documents account, confirm, payload, payload_file, and instance_name in detail. The description adds only the credential-privacy note, which applies tangentially to parameters rather than clarifying them. Baseline 3 applies when the schema does the heavy lifting.

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

Purpose3/5

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

The description states a verb+resource matching the name, and adds that the action uses the selected private profile license credential with no global API-key fallback. However, 'native activate license' largely restates the tool name and does not clearly distinguish it from siblings like validate_license or deactivate_license. Purpose is inferable but not sharply defined.

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?

There is no explicit when-to-use guidance, no exclusions, and no reference to the sibling tools (validate_license, deactivate_license) that an agent must choose between. The only usage-shaped statement is the auth constraint about no global fallback, which is a mode note rather than a selection criterion.

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