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Glama

BuyAPI

by io.github.TheSnakeFang

stacks.findSimilar

Read-onlyIdempotent

Finds reviewed public stack examples related to a vendor, or recent curated stack examples.

Use this when the user asks who uses a tool, what similar builders use, or wants examples of real stack combinations. Do not use it as a generic recommendation tool.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoMaximum stacks to return
vendorIdNoOptional BuyAPI vendor ID, e.g. /database/convex

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
stacksYes

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": {},
+  "properties": {
+    "stacks": {
+      "items": {},
+      "type": "array"
+    }
+  },
+  "required": [
+    "stacks"
+  ],
+  "type": "object"
+}
  2. First observed

TDQS

A4.5/5.0
Behavior4/5

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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint:false. The description adds behavioral context about the data source ('reviewed public', 'recent curated') and clarifies the two operational modes, going beyond the annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is two sentences: the first states the core purpose, the second gives usage guidance and an exclusion. Every sentence earns its place; no fluff or redundancy.

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?

Given the tool's low complexity (two optional parameters, no required inputs), comprehensive annotations, and an existing output schema, the description provides all necessary context: what it does, when to use it, and what not to use it for.

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?

The input schema provides 100% coverage for both parameters (limit and vendorId), including descriptions. The tool description does not add parameter-specific semantics beyond what the schema already offers, so the baseline score of 3 is appropriate.

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 clearly states the tool's function: 'Finds reviewed public stack examples related to a vendor, or recent curated stack examples.' It uses a specific verb ('finds') and resource ('stack examples'), and distinguishes from siblings by explicitly noting it is not a generic recommendation tool.

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 provides explicit usage guidance: 'Use this when the user asks who uses a tool, what similar builders use, or wants examples of real stack combinations.' It also includes an exclusion: 'Do not use it as a generic recommendation tool,' implying an alternative such as stacks.recommend.

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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TDQS

A4.4/5.0
Disambiguation5/5

Every tool targets a distinct purpose: stack examples vs. recommendation, vendor discovery vs. comparison vs. details vs. cost estimation vs. evidence. There is no functional overlap, and the descriptions clearly delineate boundaries.

Naming Consistency4/5

Tools follow a domain.action pattern (stacks.*, vendors.*), which is predictable. However, action names mix camelCase (findSimilar, estimateCost) with lowercase (recommend, compare), a minor inconsistency that doesn't hinder understanding.

Tool Count5/5

Seven tools cover the vendor and stack selection domain without being overwhelming or sparse. Each tool earns its place by addressing a distinct step in the workflow.

Completeness5/5

The tool set covers the complete workflow: initial vendor discovery (resolve), comparison (compare), detailed info (details), cost estimation (estimateCost), evidence retrieval (evidence), and stack examples/recommendations (findSimilar, recommend). No obvious gaps.

Resources