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user-ic

vscode-editor-mcp

by user-ic
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Server Quality Checklist

67%
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  • Latest release: v0.1.0

  • Disambiguation5/5

    With only one tool, there is no possibility of overlap or confusion. get_selection has a clearly distinct purpose.

    Naming Consistency5/5

    The single tool follows the clear verb_noun pattern (get_selection), and since there are no other tools, there are no inconsistencies.

    Tool Count2/5

    A single tool is far too few for an editor MCP, which would normally require operations like opening files, editing text, or managing tabs. This feels severely under-scoped.

    Completeness1/5

    The tool surface is severely incomplete: it only reads the current selection and provides no way to modify files or interact with the editor in other ways, making most editor workflows impossible.

  • Average 3.9/5 across 1 of 1 tools scored.

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

    • No community issues in the last 6 months
    • 2 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

  • This repository is licensed under MIT License.

  • 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

  • Behavior3/5

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

    With no annotations, the description carries the burden of behavioral disclosure. It notes 1-based line/character numbers, which is useful, but does not mention behavior when no file is open or no selection exists, nor whether it is read-only. Partially transparent.

    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 a single, well-structured sentence that front-loads the key information (what is returned) and adds the 1-based detail without fluff. Every word earns its place.

    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?

    No output schema exists, so the description must explain return values. It does so at a high level but lacks the exact structure (e.g., object fields, array format) needed for an agent to reliably consume the result. Edge cases like 'no active editor' are also unaddressed.

    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?

    The tool has zero parameters, so the schema fully covers parameter semantics. Baseline is 4, and the description adds no misleading or unnecessary parameter information.

    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 explicitly states the tool returns the file name/path and line ranges of selections, with a specific verb ('Returns') and resource ('VS Code's active editor'). It is unambiguous and distinct from potential sibling tools.

    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 implies usage (when you need the current editor selection) but provides no explicit when-to-use statement, alternatives, or exclusions. For a simple getter with no siblings, the context is clear but not fully explicit.

    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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  • Confirm that there are no obvious security issues.
  • Evaluate tool definition quality.

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