HireNimbus home services MCP

Find HVAC

find_hvac

Read-onlyIdempotent

Use when the user wants to find, search, or compare HVAC professionals, or describes a problem a HVAC solves — such as AC not cooling or blowing warm air, furnace won't turn on or no heat, heat pump repair or installation, thermostat or smart-thermostat installation, refrigerant recharge, seasonal HVAC tune-up or maintenance, mini-split installation, duct sealing or cleaning, strange noises or smells from the unit, or uneven temperatures between rooms. Do not use for DIY how-to advice, cost research with no hiring intent, auto or appliance retail questions, or emergencies requiring 911 or the utility company. Read-only; does not create a booking. Showcase matching pros before any booking or OTP. If already signed in, get_my_profile may load the saved ZIP; otherwise search with the ZIP they provide. Prefer a 5-digit ZIP for location. If this ZIP returns no providers, keep the empty result; do not fill with providers from another area. Always pass optional context on this call (15-25 words, third person, abstract purpose only, no PII) so analytics can record why the tool was called. Omitting it does not fail the call; do not send an empty string.

Input Schema

TableJSON Schema

Name	Required	Description
`page`	No
`limit`	No
`context`	No	Always include this argument on every call — do not omit it (analytics / Agent Intent). Write 15-25 words in third person explaining why this tool is being called. Abstract purpose only: never names, phones, emails, street addresses, IDs, or other PII. Example: "Homeowner wants vetted local plumbers for a leaking kitchen faucet within the previously confirmed ZIP."
`location`	Yes	Prefer a 5-digit US ZIP for location (e.g. "22307" or "94114"). This is the primary and preferred location input. After get_my_profile, if address.postalCode exists and the user confirmed the saved street address is the job site, pass that postalCode. Do not pass search_location when it is City, ST and a ZIP is available on the address. Never pass a street address, formattedAddress, or address1.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`result`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed7 schema fields changedSep 16, 2026

addedInput schema / properties / context / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

addedInput schema / properties / context / default
```
Added value: +null
```

changedInput schema / properties / context / description

Previous value: -"Explain in 15-25 words, in third person, why this tool is called and how it supports the user's goal. For analytics only. You MUST describe only the abstract purpose of the tool call. NEVER include, repeat, paraphrase, or infer personal, sensitive, or identifying information from the user request or tool results, including names, emails, phone numbers, IPs, IDs, or credentials. You MUST generalize specific entities into roles such as \"a user\", \"the customer\", or \"an account\". Example: \"Retrieving a customer's recent orders to investigate a billing issue and help support determine the appropriate resolution.\""New value: +"Always include this argument on every call — do not omit it (analytics / Agent Intent). Write 15-25 words in third person explaining why this tool is being called. Abstract purpose only: never names, phones, emails, street addresses, IDs, or other PII. Example: \"Homeowner wants vetted local plumbers for a leaking kitchen faucet within the previously confirmed ZIP.\""

addedInput schema / properties / context / examples

Added value: +[
+  "Homeowner wants vetted local plumbers for a leaking kitchen faucet within the previously confirmed ZIP.",
+  "Homeowner is comparing HVAC pros after a no-cool air conditioner at the confirmed job site."
+]

addedInput schema / properties / context / title
```
Added value: +"Context"
```
removedInput schema / properties / context / type
```
Removed value: -"string"
```

changedInput schema / required

Previous value: -[
-  "location",
-  "context"
-]New value: +[
+  "location"
+]

First observedSep 16, 2026

TDQS

A4.8/5.0

Behavior5/5

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

The description adds meaningful behavior beyond the annotations: it clarifies the tool is read-only, does not create bookings, should not fabricate providers when the ZIP returns no results, and should preserve empty results. It also documents the optional-but-expected context parameter behavior, including that omitting it won't fail the call and that an empty string should not be sent.

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?

The description is long but dense and well organized, front-loading user intent and exclusions before behavioral details. Some redundancy exists—'Prefer a 5-digit ZIP' and the context-passing rule appear in both the description and the schema—but each sentence otherwise earns its place given the tool's complexity.

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?

The description is complete for a tool of this complexity, covering use cases, exclusions, profile/ZIP integration, empty-result behavior, and the required analytics context. Since an output schema exists, not detailing the return shape is acceptable. No material guidance an agent needs to call the tool correctly is missing.

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?

With only 50% schema description coverage, the description compensates well for the two semantically important parameters: location (ZIP preference, postalCode from get_my_profile, never a street address) and context (15-25 words, third person, no PII, always passed). The page and limit parameters are not explained in the description, though their defaults in the schema make them largely self-explanatory.

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 opens with a specific verb and resource ('find, search, or compare HVAC professionals') and gives concrete problem examples, which makes the tool's purpose unmistakable. It also implies a clear distinction from booking tools by noting that it is read-only and does not create a booking.

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?

The description explicitly states when to use the tool ('Use when the user wants to find...') and when not to use it ('Do not use for DIY how-to advice... emergencies...'). It also names get_my_profile as a complementary tool and positions this tool as the pre-booking search step, providing strong routing guidance.

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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