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scooby359

ChromaDB MCP Server

by scooby359
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Server Quality Checklist

58%
Profile completionA complete profile improves this server's visibility in search results.

  • Latest release: v1.0.0

  • Disambiguation5/5

    With only one tool, there is no possibility of ambiguity or overlap between tools. The tool's purpose is clearly defined as querying a specific collection in ChromaDB for exchange research data.

    Naming Consistency5/5

    Since there is only one tool, naming consistency is inherently perfect. The tool name 'query_chromadb' follows a clear verb_noun pattern, though no pattern can be established across multiple tools.

    Tool Count2/5

    A single tool is insufficient for a database server's scope, which typically requires operations like create, update, delete, or list collections. This feels thin and limits functionality to basic queries only.

    Completeness2/5

    The tool surface is severely incomplete for a ChromaDB server. It only supports querying a specific collection, missing essential operations such as creating collections, inserting documents, updating data, or managing collections, which are critical for database interactions.

  • Average 3.2/5 across 1 of 1 tools scored.

    See the Tool Scores section below for per-tool breakdowns.

    • No community issues in the last 6 months
    • 0 commits in the last 12 weeks
    • No stable releases found
    • No critical vulnerability alerts
    • No high-severity vulnerability alerts
    • No code scanning findings
    • CI status not available

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  • This repository includes a README.md file.

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How is the quality score calculated?

The overall quality score combines two components: Tool Definition Quality (70%) and Server Coherence (30%).

Tool Definition Quality measures how well each tool describes itself to AI agents. Every tool is scored 1–5 across six dimensions: Purpose Clarity (25%), Usage Guidelines (20%), Behavioral Transparency (20%), Parameter Semantics (15%), Conciseness & Structure (10%), and Contextual Completeness (10%). The server-level definition quality score is calculated as 60% mean TDQS + 40% minimum TDQS, so a single poorly described tool pulls the score down.

Server Coherence evaluates how well the tools work together as a set, scoring four dimensions equally: Disambiguation (can agents tell tools apart?), Naming Consistency, Tool Count Appropriateness, and Completeness (are there gaps in the tool surface?).

Tiers are derived from the overall score: A (≥3.5), B (≥3.0), C (≥2.0), D (≥1.0), F (<1.0). B and above is considered passing.

Tool Scores

  • Behavior2/5

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

    No annotations are provided, so the description carries full burden for behavioral disclosure. It states the tool queries for documents but doesn't describe what the query does (e.g., semantic search, keyword matching), how results are ranked, error conditions, rate limits, or authentication needs. This leaves significant behavioral gaps for a query tool.

    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 appropriately concise with two sentences that directly address purpose and usage. It's front-loaded with the core function. While efficient, it could be slightly more structured by separating behavioral details, but it avoids unnecessary verbiage.

    Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

    Completeness3/5

    Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

    Given no annotations and no output schema, the description is incomplete for a query tool. It covers the basic purpose and domain but lacks details on return format (e.g., document structure, metadata), error handling, or performance characteristics. This is minimally adequate but has clear gaps in context.

    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 description coverage is 100%, so the schema already documents both parameters thoroughly. The description adds no parameter-specific information beyond what's in the schema. It mentions 'query' generically but doesn't elaborate on query syntax or 'nResults' behavior. Baseline 3 is appropriate when schema does the heavy lifting.

    Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

    Purpose4/5

    Does the description clearly state what the tool does and how it differs from similar tools?

    The description clearly states the tool's purpose: 'Query the ChromaDB ExchangeResearch collection for relevant documents.' It specifies the verb (query), resource (ChromaDB ExchangeResearch collection), and target outcome (find relevant documents). However, with no sibling tools mentioned, it cannot demonstrate differentiation from alternatives, preventing a perfect score.

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

    Usage Guidelines3/5

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

    The description provides implied usage context: 'Use this to find information related to exchange research, trading, or financial data.' This gives general guidance on when to use the tool but lacks explicit when-not-to-use scenarios or named alternatives. With no sibling tools, it cannot offer comparative 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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