Skip to main content
Glama

call_tool_read

Read-onlyDestructive

Execute read-only tool calls for data retrieval (e.g., search, list, get). Use exact tool names from the retrieve_tools results.

Instructions

Execute a READ-ONLY tool. WORKFLOW: 1) Call retrieve_tools first to find tools, 2) Use the exact 'name' field from results. DECISION RULE: Use this when the tool name contains: search, query, list, get, fetch, find, check, view, read, show, describe, lookup, retrieve, browse, explore, discover, scan, inspect, analyze, examine, validate, verify. Examples: search_files, get_user, list_repositories, query_database, find_issues, check_status. This is the DEFAULT choice when unsure - most tools are read-only.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
argsNoArguments to pass to the upstream tool as a native JSON object. Refer to the tool's inputSchema from retrieve_tools for required parameters. Example: {"path": "src/index.ts", "limit": 20}. This is the preferred parameter — it eliminates JSON escaping overhead. Use 'args_json' only if your client cannot produce nested JSON objects.
args_jsonNoLegacy: arguments as a pre-serialized JSON string. Prefer the 'args' parameter instead — it accepts a native JSON object and eliminates escaping overhead. If both are provided, 'args_json' wins for backward compatibility.
intent_data_sensitivityNoClassify data being accessed: public, internal, private, or unknown. Helps track sensitive data access patterns.
intent_reasonNoWhy is this tool being called? Provide context like 'User asked to check status' or 'Gathering data for report'.
nameYesTool name in format 'server:tool' (e.g., 'github:get_user'). CRITICAL: You MUST use exact names from retrieve_tools results - do NOT guess or invent server names. Unknown servers will fail.
Behavior1/5

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

The description claims the tool is read-only ('READ-ONLY tool'), but the annotations set destructiveHint=true, indicating potential destructive behavior. This is a clear contradiction. The description does not address or reconcile this inconsistency, nor does it disclose other behavioral traits like authorization needs or side effects.

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 structured with a clear workflow and decision rule, front-loading the purpose. However, it is somewhat lengthy due to the list of keywords and examples. It could be slightly more concise, but the structure is effective.

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 the complexity (5 parameters, no output schema, contradictory annotations), the description covers usage context well but fails to address the annotation contradiction or describe return values. It provides examples and decision rules but is incomplete in behavioral transparency.

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 baseline is 3. The description does not add any additional meaning beyond what the schema provides. The parameters are fully described in the input schema itself, so the description adds no extra value for parameter semantics.

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 'Execute a READ-ONLY tool' and provides a specific verb ('execute') and resource ('tool'). It distinguishes from siblings by specifying it's for tools whose names match read-related patterns like search, get, list, etc. The default choice statement further clarifies its role.

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 guidelines: a workflow (call retrieve_tools first, use exact name), a decision rule with a comprehensive list of name patterns, examples, and a default choice instruction. It implicitly excludes destructive/write tools without naming them directly.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/smart-mcp-proxy/mcpproxy-go'

If you have feedback or need assistance with the MCP directory API, please join our Discord server