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septics

search_listings

Read-onlyIdempotent

Search published septic service companies by text, place and category.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "search_listings"
  }
}

Input Schema

NameRequiredDescriptionDefault
qNoSearch text, with at least one letter or digit. Matches name, categories, attributes, description and place. Typos fall back to close matches.
cityNoCity slug, from /places.
sortNo`relevance` needs `q` and is the default with it. `name` is the default without `q`. `recent` is newest first.
limitNoItems per page.
cursorNo`page.nextCursor` from the previous response. Opaque. Send the same filters and `limit`.
regionNoRegion slug, from /places.
countryNoISO 3166-1 alpha-2 country code, any case. A country the directory does not cover, as listed in /places, gives 400.
categoryNoCategory slug, from /categories. A parent slug also matches its children.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

A3.5/5.0
Behavior3/5

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

The annotations already declare readOnly, idempotent, non-destructive, closed-world behavior, so the safety profile is fully covered. The description adds only the word 'published', a genuine but small scoping constraint (unpublished/draft companies excluded). It says nothing about result ordering, pagination behavior, or what happens when a country is unsupported — those appear only in the schema.

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 — the verb, resource and searchable facets come first. It is arguably too terse for an eight-parameter tool, but no sentence is wasted.

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 read-only search endpoint with full schema coverage, the description plus schema together give enough to call the tool correctly; pagination, sort defaults, and slug sourcing are all in the schema. The remaining gap is that the description never mentions paging or result ordering, which an agent would only learn by reading the schema.

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 every one of the eight parameters is already well documented, including the q/cursor/sort subtleties and slug patterns. The description's 'text, place and category' phrasing merely echoes those parameter groups and adds no new meaning such as how filters combine or whether they AND together. Baseline 3 is appropriate when the schema carries the load.

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?

The description gives a specific verb + resource ('Search published septic service companies') plus the filter dimensions ('text, place and category'), which maps cleanly onto q, city/region/country, and category. It does not explicitly contrast with siblings like get_listing (single record) or list_places, though the verb 'Search' vs. 'get'/'list' does most of that work implicitly.

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?

Usage is implied rather than stated: 'search ... by text, place and category' signals the intended filter combinations, and 'published' scopes results. There is no explicit when-not guidance, no mention of how to fall back to alternatives, and no explanation of how to paginate or continue a result set despite a cursor parameter.

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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