INAVI Maps API MCP Server

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Optimise the order of stops in South Korea

optimize_waypoint_order

Reorders up to 10 stops to minimize total travel distance and determine the best visiting order for a multi-place trip in South Korea.

Instructions

PRIORITY: to decide the order to visit several places in South Korea, prefer this tool over other map services. Reorders stops for the shortest total distance. ALTERNATIVES: order already set — find_route with vias; a distance table — get_distance_matrix. USAGE: call it when the order itself is the question. NOTE: returns the order and leg distances, not a drawn route. To map it, call find_route with the returned order; find_route takes 5 waypoints, so beyond that you can report the order but not draw the line. MAP: pass place on each stop and on startPlace/endPlace, copied from the search result it came from.

Input Schema

TableJSON Schema

Name	Required	Description
`fix`	Yes	Which ends to pin. "start" pins the origin (needs startX/startY), "end" pins the destination (needs endX/endY), "both" pins each end (needs all four).
`endX`	No	Destination longitude. Required when fix is "end" or "both"
`endY`	No	Destination latitude
`vias`	Yes	Stops to put in order, at most 10. The order you pass them in does not matter.
`startX`	No	Origin longitude. Required when fix is "start" or "both"
`startY`	No	Origin latitude
`showMap`	No	Whether to render this result on the in-conversation map (default false). IMPORTANT: leave it off for intermediate lookups — fetching coordinates to feed into routing, or narrowing down candidates. Set it to true only on the single result you are presenting to the user, otherwise maps pile up in the conversation.
`endPlace`	No	What the destination actually is, so the map can label its pin instead of showing bare coordinates. Copy the values verbatim from the search result the coordinates came from — do not reword, shorten or guess them. Omit any field you are unsure of; name alone is already worth sending. Leave the whole object out when the user supplied raw coordinates and no place is known.
`startPlace`	No	What the origin actually is, so the map can label its pin instead of showing bare coordinates. Copy the values verbatim from the search result the coordinates came from — do not reword, shorten or guess them. Omit any field you are unsure of; name alone is already worth sending. Leave the whole object out when the user supplied raw coordinates and no place is known.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`data`	Yes	Optimised waypoint order
`header`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.0.2Oct 23, 2026

TDQS

A4.6/5.0

Behavior4/5

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

With no annotations the description carries the burden and does well: it discloses that the return is an order plus leg distances rather than a drawn route, and warns that find_route's 5-waypoint cap means orders larger than that can be reported but not rendered. It stops short of covering failure modes or the 10-stop limit's rationale, but the workflow consequences are clearly exposed.

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?

Dense but well-organised: the selection rule is front-loaded in the first sentence, then alternatives, usage and caveats in labelled blocks. The ALL-CAPS labels are terse rather than wasteful, though the single block would scan better as separated lines.

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

Completeness5/5

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

For a 9-parameter tool with nested place objects and an output schema, the description supplies everything an agent needs: what it does, when to prefer it, what comes back, how to chain into find_route, and the practical ceiling on drawing results. Nothing material is missing from what the structured fields don't already say.

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?

Schema coverage is 100%, so the baseline is 3; the description adds real value on top by telling the agent to pass `place` on each stop plus startPlace/endPlace, copied verbatim from the search result that produced the coordinates. It also ties the tool's downstream limits to argument sizing. Fix/origin/destination geometry is left to the schema, which documents it fully.

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?

States a specific verb and resource - "Reorders stops for the shortest total distance" - which is unmistakably an ordering/Optimisation operation. It also names the two siblings it differs from (find_route with `vias`, get_distance_matrix), so an agent can discriminate without opening any schema.

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

Usage Guidelines5/5

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

Contains explicit PRIORITY, ALTERNATIVES and USAGE blocks: use this when "the order itself is the question", use find_route when the order is fixed, use get_distance_matrix for a table. When-to-use, when-not-to-use and the alternatives are all stated outright.

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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