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DevUtils MCP Server

DevUtils MCP Server

by orkuhh
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
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grep_search

Search for text patterns in files using regex, with options for context lines, file types, and case sensitivity.

Instructions

Search for text patterns in files

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": {
      "pattern": "<pattern>"
    },
    "name": "grep_search"
  }
}

Input Schema

NameRequiredDescriptionDefault
patternYesSearch pattern (regex supported)
pathNoSearch directory (defaults to workspace)
optionsNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.9/5.0
Behavior2/5

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

With no annotations provided, the description carries full burden for behavioral disclosure but only states the basic action. It doesn't mention whether this is read-only (likely, but not confirmed), performance implications, error conditions, or output format. For a search tool with regex support and multiple options, this is insufficient behavioral context.

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, efficient sentence that directly states the tool's purpose without unnecessary words. It's appropriately sized and front-loaded, with every word earning its place in conveying the core functionality.

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

Completeness2/5

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

Given the tool's complexity (regex support, multiple options, nested objects) and lack of both annotations and output schema, the description is incomplete. It doesn't address what the search returns, how results are formatted, error handling, or performance considerations, leaving significant gaps for the agent to operate effectively.

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 67% (2 of 3 parameters have descriptions), so the baseline is 3. The description adds no parameter information beyond what's in the schema—it doesn't explain how 'pattern' interacts with 'options', what 'path' defaults to, or provide examples. It relies entirely on the schema for parameter semantics.

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 as 'Search for text patterns in files', which includes a specific verb ('Search') and resource ('text patterns in files'). It distinguishes itself from siblings like 'file_search' by specifying pattern-based searching rather than general file searching, though the distinction could be more explicit.

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

Usage Guidelines2/5

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

The description provides no guidance on when to use this tool versus alternatives like 'file_search' or 'batch_edit'. It lacks context about use cases, prerequisites, or exclusions, leaving the agent to infer usage based solely on the tool name and basic purpose.

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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