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nina-mcp

nina-mcp

by anarcoiris
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

nina_sequence_load_by_name

Load a saved sequence by name from NINA's default folder to set it as the active Advanced Sequence. Sequence must not be running.

Instructions

Load a saved sequence (by name, without the .json extension) from NINA's default sequence folder as the active Advanced Sequence. Fails if a sequence is currently running.

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": {
      "sequence_name": "<sequence_name>"
    },
    "name": "nina_sequence_load_by_name"
  }
}

Input Schema

NameRequiredDescriptionDefault
sequence_nameYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4/5.0
Behavior3/5

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

With no annotations, the description carries the behavioral disclosure burden. It states the failure condition when a sequence is running, but does not mention what happens on success (e.g., replacement of active sequence, feedback), error handling for missing file, or side effects like clearing unsaved changes.

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 extremely concise: two sentences with no redundancy. The first sentence conveys the core action and source, and the second adds an important constraint. Every word earns its place.

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 tool with one parameter and no output schema, the description covers the main purpose, source, and a key constraint. It is slightly lacking in describing return behavior or outcomes (e.g., does it return success message or update state?), but overall sufficient for core understanding.

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

Parameters4/5

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

The schema provides only a title 'Sequence Name' with no description. The description adds crucial meaning by explaining that the name should be provided without the '.json' extension, which is essential for correct usage. This compensates well for the 0% schema coverage.

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 (load a saved sequence by name), the source (NINA's default sequence folder), and the target context (active Advanced Sequence). It also distinguishes from siblings like nina_sequence_load_json and nina_sequence_list_available, which involve different forms of sequence loading or listing.

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?

The description does not explicitly guide when to use this tool versus alternatives like nina_sequence_load_json or nina_sequence_start. It mentions a key condition (fails if running), but lacks direct comparison to other sequence tools or suggestions for when to choose this one.

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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