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LCM2M

lcm2m-caddis-mcp

by LCM2M

Equipment utilization over time

caddis_get_equipment_utilization
Read-onlyIdempotent

Retrieve grouped equipment utilization metrics—running and down seconds bucketed into intervals over a specified time window.

Instructions

Grouped utilization metrics for a piece of equipment. Buckets the running/down seconds into intervals (default '1d') over the requested window in the given timezone (default 'UTC').

Responses are TOON-encoded (toonformat.dev) — a token-efficient JSON dialect mixing YAML-style indentation with CSV-style tables. Example:

name: Caddis Co timezone: America/Denver equipment[3]{id,name,tags,current_status.status,current_status.reason_id}: 1,Mill A,"["cnc","critical"]",running,null 2,"Press, Big",null,down,3 3,Lathe C,null,null,null

  • Object fields: key: value; nested objects indent their children.

  • Uniform arrays of objects: field[N]{cols}: followed by N indented comma-separated rows in column order.

  • Nested objects inside table rows are recursively flattened to dotted columns (e.g. current_status.status, input_setup.cycle.logic); a null parent yields null across all its dotted columns (see row 3 above).

  • Primitive arrays at object level: field[N]: a,b,c inline.

  • Arrays inside table cells are JSON-stringified into a single cell value (JSON.parse() to recover); empty arrays render as null (see rows 1–3 tags column).

  • Strings with commas/colons/quotes/leading whitespace are double-quoted (escapes: \\, \"); other strings, numbers, booleans, and null are bare.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tzNoIANA timezone, e.g. 'America/Denver' (default 'UTC')
endNoISO 8601 window end (defaults to now)
startYesISO 8601 window start (required)
equipIdYesNumeric identifier (accepts either string or number form)
intervalNoBucket interval, e.g. '1h', '1d', '1w' (default '1d')
Behavior4/5

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

Annotations already declare readOnlyHint, idempotentHint, and openWorldHint, so the description adds value by detailing the TOON-encoded response format and default behavior (interval, timezone). It does not contradict annotations.

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?

The description front-loads the core purpose but then includes a lengthy, detailed explanation of the TOON-encoded response format, which could be condensed or linked externally. It is informative but not concise.

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?

Given no output schema, the description thoroughly explains the return format and defaults. It covers essential behavioral aspects, though it omits error handling or date range limits, which is acceptable for a read-only tool.

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 coverage is 100%, and the description repeats defaults already present (interval '1d', timezone 'UTC'). It does not add new parameter meaning beyond what the schema provides.

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 explicitly states it provides 'Grouped utilization metrics for a piece of equipment' and details the bucketing of running/down seconds, making the tool's function clear and distinct from siblings like caddis_get_equipment or caddis_get_equipment_schedule.

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?

No guidance is given on when to use this tool versus alternatives such as caddis_get_equipment_cycles or caddis_get_org_unit_utilization. There are no explicit when-to-use or when-not-to-use statements.

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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