databutler-uk-rates
Server Details
Current UK tax-year rates and thresholds, verified against gov.uk with source URLs and dates.
- Status
- Healthy
- Last Tested
- Transport
- Streamable HTTP
- URL
Tool Definition Quality
Average 4.3/5 across 1 of 1 tools scored.
With only a single tool, there is no possibility of confusing it with another tool. The one tool has a clearly defined purpose covering all UK rates and thresholds.
The single tool uses a clear, descriptive snake_case name with a lookup verb. There are no additional tools to create inconsistent conventions.
The server has only one tool, which feels minimal even though the lookup covers many rate categories. The narrow scope makes it defensible, but the surface is thin compared to typical well-rounded tool sets.
The tool explicitly covers the major UK financial categories users would ask about, and includes verification with source URLs. For a rates lookup server, there are no obvious missing operations or categories.
Available Tools
1 tooluk_rates_lookupAInspect
Current UK (2026-27) rates and thresholds, verified against gov.uk with source URLs and verification dates. Categories: income-tax, national-insurance, minimum-wage, student-loans, vat, isa, state-pension, stamp-duty, capital-gains, pensions. Use whenever a user asks about UK income tax, National Insurance, minimum wage, student loans, VAT, ISAs, pensions, stamp duty, capital gains or the State Pension — models reliably misremember these numbers.
| Name | Required | Description | Default |
|---|---|---|---|
| category | No | one of: income-tax, national-insurance, minimum-wage, student-loans, vat, isa, state-pension, stamp-duty, capital-gains, pensions (omit to list all) |
Tool Definition Quality
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It discloses that data is current for 2026-27, sourced from gov.uk, and includes source URLs and verification dates — a concrete freshness and traceability guarantee. It stops short of describing output shape or error behavior, but for a read-only lookup the key behavioral traits are covered.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is compact: a scoping sentence, a category enumeration, and a usage directive. The category list is long but necessary for disambiguation. There is slight redundancy with the schema's category list, but overall it is front-loaded and every sentence earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with one optional parameter and no output schema, the description tells an agent what the tool returns, which values are supported, and when to use it. It lacks a sample output or explicit statement that it is read-only, but these are minor gaps for such a simple, well-scoped lookup.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema already documents the single parameter completely, including the 'omit to list all' behavior, so description coverage is 100%. The tool description repeats the category list but adds no semantic detail beyond the schema, meeting the baseline 3 without exceeding it.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description names the resource ('UK (2026-27) rates and thresholds') and the action (lookup/return), and explicitly enumerates ten categories. It is a specific verb-resource combination, not a tautology, and the 'verified against gov.uk' detail solidifies the scope.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly says 'Use whenever a user asks about...' and lists all triggering topics, with a rationale ('models reliably misremember these numbers'). This gives an agent clear conditions for invocation, and no exclusions are needed since there are no sibling tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Frequently Asked Questions
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/.well-known/glama.jsonon the same origin as the connector, then choose Check HTTP challenge.DNS challenge — works when you control DNS but cannot change the server. Generate a token, create the exact TXT record Glama shows, wait for it to propagate, then choose Check DNS challenge.
After verification, Glama sends a confirmation email and gives you access to listing details, thumbnails, health checks, and analytics. Keep the HTTP file or DNS record in place: Glama periodically checks it and ownership remains verified while the token is discoverable.
The HTTP ownership file has this structure:
{
"$schema": "https://glama.ai/mcp/schemas/connector.json",
"claim": "glama_claim_..."
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If verification fails, confirm that you copied the current token exactly. The HTTP file must be public, return valid JSON with a successful HTTP response, and stay on the connector's origin. DNS changes may need more time to propagate. A claim cannot transfer to a different origin or hostname: if the connector target changes, Glama starts the grace period and the new target must be claimed separately after the previous claim is released.
For a connector linked to the official MCP Registry, registry updates continue to replace its name, description, and URL by default. After claiming, open Manage connector and enable Use Glama listing details as the source of truth if edits made on Glama should be preserved. Categories and thumbnails are always managed on Glama; registry linkage and technical connection settings continue to sync.
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The connector status is unhealthy when Glama is unable to successfully connect to the server. This can happen for several reasons:
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Discussions
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