cyclesite-mcp-server

Find similar listings

find_similar_listings

Read-onlyIdempotent

Given a Cyclesite listing slug, return up to 5 similar active listings (same category, ±25% price, same brand or frame size weighted higher), as alternatives to one bike. Example: 'show me bikes like that one'.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "slug": "<slug>"
    },
    "name": "find_similar_listings"
  }
}

Input Schema

Name	Required	Description	Default
`slug`	Yes	Source listing URL slug.

Output Schema

Name	Required	Description
`listings`	Yes
`attribution`	Yes	Citation string for the data in this result.
`resultsCount`	Yes
`searchedFrom`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedNov 3, 2026

changedOutput schema / properties / attribution / description

Previous value: -"Citation string — include verbatim when surfacing data."New value: +"Citation string for the data in this result."

Changed1 schema field changedOct 28, 2026
- addedOutput schema / properties / searchedFrom
```
Added value: +{
+  "type": "string"
+}
```
Changed3 schema fields changedSep 21, 2026
- addedOutput schema / properties / listings / items / properties / distanceMiles
```
Added value: +{
+  "type": [
+    "number",
+    "null"
+  ]
+}
```
- addedOutput schema / properties / listings / items / properties / listingId
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```
- addedOutput schema / properties / listings / items / properties / slug
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```
Changed8 schema fields changedJun 28, 2026
- addedOutput schema / properties / listings / items / properties / delivery
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```
- addedOutput schema / properties / listings / items / properties / ebikeBatteryWh
```
Added value: +{
+  "type": [
+    "number",
+    "null"
+  ]
+}
```
- addedOutput schema / properties / listings / items / properties / ebikeMotor
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```
- addedOutput schema / properties / listings / items / properties / frameMaterial
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```
- addedOutput schema / properties / listings / items / properties / groupset
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```
- addedOutput schema / properties / listings / items / properties / imageUrl
```
Added value: +{
+  "format": "uri",
+  "type": [
+    "string",
+    "null"
+  ]
+}
```
- addedOutput schema / properties / listings / items / properties / negotiable
```
Added value: +{
+  "type": "boolean"
+}
```
- addedOutput schema / properties / listings / items / properties / wheelSize
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```
Changed6 schema fields changedMay 28, 2026
- changedOutput schema / properties / listings / items / properties / brand / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / listings / items / properties / city / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / listings / items / properties / frameSize / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / listings / items / properties / model / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / listings / items / properties / url / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / listings / items / properties / year / type
```
Previous value: -"number"New value: +[
+  "number",
+  "null"
+]
```

Changed1 schema field changedMay 22, 2026

addedOutput schema / properties / listings / items / properties / offer

Added value: +{
+  "description": "UCP/ACP-shaped commerce signal for this listing.",
+  "properties": {
+    "availability": {
+      "type": "string"
+    },
+    "itemCondition": {
+      "type": "string"
+    },
+    "price": {
+      "type": "number"
+    },
+    "priceCurrency": {
+      "type": "string"
+    }
+  },
+  "type": "object"
+}

First observedMay 7, 2026

TDQS

A4.1/5.0

Behavior4/5

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

Annotations already declare read-only, idempotent, non-destructive, closed-world behavior, so the bar is lower. The description still adds real behavior beyond them: the 5-result cap, the requirement that results be active, and the ranking heuristic used to pick and order matches.

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?

Everything is packed into one dense sentence plus a short example, front-loaded with the output shape ('up to 5 similar active listings'). The parenthetical ranking criteria are slightly compressed but each clause carries information.

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?

With an output schema present, the description needn't explain return values, and annotations cover the safety profile. What remains — what counts as similar, the result cap, and the intended user intent — is all supplied; only explicit sibling routing is missing.

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 coverage is 100% and the single parameter already documents itself as the source listing URL slug. The description confirms the slug identifies the source bike but adds no format or edge-case detail beyond the schema, so baseline 3 applies.

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 names a specific verb and resource ('Given a Cycle site listing slug, return up to 5 similar active listings') and pins down the notion of similarity with concrete criteria (same category, ±25% price, brand/frame size weighting). This clearly separates it from retrieval siblings like get_listing_detail or search_bikes.

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?

The example utterance ('show me bikes like that one') makes the triggering intent clear: the user has one listing in mind and wants alternatives. It does not explicitly exclude alternatives such as search_bikes or compare_bikes, so it stops short of full when-not 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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