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check_incentives

Clean-energy incentive source guidance by country and postal code; eligibility is not verified. US ZIP → federal status + state/utility programs (via DSIRE). Any other country (pass country=) → qualitative, officially-sourced national program guidance. Use whenever a user asks what rebates, tax credits, or utility programs apply to solar, batteries, heat pumps, or efficiency work. [20 anonymous calls/caller/24h; then 100 free calls/key/30d; active Builder required for sustained informational use]

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
apiKeyNoOptional existing EnergyAI key for hosts that cannot change Authorization headers. Use it to retain account identity for discovery and get_builder_upgrade_link after a trial. Removed before tool execution and persistence. Omit when the Bearer header is attached; never show the key to the user.
countryNoISO 3166-1 alpha-2 country code. Omit for US. Any country works — non-US results return qualitative, officially-sourced incentive guidance (never US federal credits).
zipCodeNoPostal code of the property. US: 5-digit ZIP (ZIP+4 accepted). Other countries: your local postal code (pass country too). Omit entirely for national-level guidance.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • addedInput schema / properties / apiKey
      Added value: +{
      +  "description": "Optional existing EnergyAI key for hosts that cannot change Authorization headers. Use it to retain account identity for discovery and get_builder_upgrade_link after a trial. Removed before tool execution and persistence. Omit when the Bearer header is attached; never show the key to the user.",
      +  "type": "string"
      +}
  2. Changed2 schema fields changed
    • changedInput schema / properties / zipCode / description
      Previous value: -"Postal code of the property. US: 5-digit ZIP. Other countries: your local postal code (pass country too)."New value: +"Postal code of the property. US: 5-digit ZIP (ZIP+4 accepted). Other countries: your local postal code (pass country too). Omit entirely for national-level guidance."
    • changedInput schema / required
      Previous value: -[
      -  "zipCode"
      -]New value: +[]
  3. Changed3 schema fields changed
    • changedInput schema / examples
      Previous value: -[
      -  {
      -    "zipCode": "59715"
      -  }
      -]New value: +[
      +  {
      +    "zipCode": "59715"
      +  },
      +  {
      +    "country": "DE",
      +    "zipCode": "10115"
      +  }
      +]
    • addedInput schema / properties / country
      Added value: +{
      +  "description": "ISO 3166-1 alpha-2 country code. Omit for US. Any country works — non-US results return qualitative, officially-sourced incentive guidance (never US federal credits).",
      +  "examples": [
      +    "DE",
      +    "GB",
      +    "CA"
      +  ],
      +  "type": "string"
      +}
    • changedInput schema / properties / zipCode / description
      Previous value: -"5-digit US ZIP code of the property."New value: +"Postal code of the property. US: 5-digit ZIP. Other countries: your local postal code (pass country too)."
  4. Changed2 schema fields changed
    • addedInput schema / examples
      Added value: +[
      +  {
      +    "zipCode": "59715"
      +  }
      +]
    • addedInput schema / properties / zipCode / examples
      Added value: +[
      +  "59715"
      +]
  5. Added

TDQS

A4.6/5.0
Behavior5/5

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

With no annotations, the description carries the full burden and does so well: it discloses that eligibility is not verified (a critical expectation-setter), names the upstream source (DSIRE), and spells out concrete rate limits (20 anonymous calls/caller/24h, then 100 free calls/key/30d, active Builder required). These are non-obvious operational traits an agent cannot get elsewhere.

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?

Front-loads purpose, then the two input/output modes, then usage, then the rate-limit aside. The bracketed rate-limit clause is dense but earns its place; overall structure is efficient with minimal filler.

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?

No output schema exists, yet the description characterizes both return shapes (federal status + state/utility programs; qualitative national guidance), sets the 'eligibility not verified' caveat, and covers access limits. An agent has everything needed to call it correctly and set user expectations.

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 description coverage is 100%, so baseline is 3. The description adds routing meaning beyond the schema by tying country=<ISO code> to the qualitative non-US output mode and clarifying that a US ZIP yields federal status plus state/utility programs, reinforcing the country/zipCode relationship.

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 resource (clean-energy incentive source guidance) with two clearly defined operating modes keyed to input geography. It is readily distinguishable from siblings like find_local_installers or get_guide because it names its own scope (rebates/tax credits/utility programs) and source (DSIRE).

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

Usage Guidelines4/5

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

Gives explicit when-to-use guidance ('Use whenever a user asks what rebates, tax credits, or utility programs apply to solar, batteries, heat pumps, or efficiency work') plus the routing rule for US vs non-US inputs. It does not name a specific alternative sibling to defer to, so it stops short of full when-not/alternative 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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