egx_market_overview

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

No annotations are provided, so the description must fully convey behavioral traits. It states 'comprehensive overview' but omits that the operation is read-only, does not describe the response structure, and lacks any mention of rate limits, permissions, or potential 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.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely concise: one sentence for purpose followed by a brief parameter list. No fluff or redundant information. The structure is clean and easy to parse.

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

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

The description adequately defines the two parameters but lacks any mention of the output format or the specific data returned by the 'comprehensive overview'. Without an output schema, the agent cannot infer what to expect from the tool's response. Additional context about scope (e.g., does it cover all EGX listed stocks?) would improve completeness.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description adds significant meaning beyond the schema by listing allowed values for 'timeframe' (5m, 15m, 1h, 4h, 1D, 1W, 1M), specifying defaults (1D for stocks), and noting the maximum for 'limit' (20). This compensates well for the schema's 0% description coverage, though explicit enum formatting would be clearer.

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

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

The description clearly identifies the target resource ('Egyptian Exchange (EGX) market') and the action ('Get a comprehensive overview'). However, it does not specify what facets of the market are included (e.g., indices, sectors, top stocks), which would help differentiate it from siblings like 'egx_index_analysis' or 'egx_sector_scan'.

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

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

No guidance is provided on when to use this tool over alternatives. With many sibling tools focused on EGX (egx_index_analysis, egx_sector_scan, egx_stock_screener) and general market overviews (futures_market_overview), users receive no context about the appropriate selection criteria.

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