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hjanuschka

Chromium CodeSearch MCP

by hjanuschka

find_chromium_symbol

Locate symbol definitions, references, and usage within Chromium source code to understand code structure and dependencies.

Instructions

Find symbol definition, references, and usage in Chromium source

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
symbolYesSymbol to find (function, class, method, etc.)
file_pathNoOptional file path context for better symbol resolution
Behavior2/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions finding 'definition, references, and usage' but does not specify output format, pagination, rate limits, authentication needs, or error handling. For a tool with no annotation coverage, this leaves significant gaps in understanding how it behaves.

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 front-loads the core purpose without unnecessary words. It earns its place by clearly stating what the tool does, making it appropriately sized and well-structured.

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 complexity of a symbol search tool with no annotations and no output schema, the description is incomplete. It lacks details on return values, behavioral traits, and differentiation from siblings. While concise, it does not provide enough context for an agent to fully understand how to use it 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?

The input schema has 100% description coverage, clearly documenting both parameters ('symbol' and 'file_path'). The description adds no additional meaning beyond what the schema provides, such as examples or edge cases. With high schema coverage, the baseline score of 3 is appropriate, as the description does not compensate but also does not detract.

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 verb ('find') and resource ('symbol definition, references, and usage in Chromium source'), making the purpose specific and understandable. However, it does not explicitly differentiate from sibling tools like 'search_chromium_code' or 'get_chromium_file', which might have overlapping functionality, so it falls short of 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 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, such as 'search_chromium_code' for broader searches or 'get_chromium_file' for file-specific content. It lacks explicit when/when-not instructions or named alternatives, leaving usage context implied at best.

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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