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

No annotations are provided, so the description carries the behavioral burden. It discloses that logs are captured automatically, returns the most recent entries, and is limited to browser sessions. However, it doesn't describe return format, whether logs are cleared or persisted, or any rate/volume limits. For a read-only diagnostic tool, the core behavioral traits are reasonably disclosed, but gaps remain around return structure and caching behavior.

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?

Three sentences, zero waste. The purpose, usage, and restriction are all stated efficiently with the browser/mobile exclusion parenthetical adding high-value context without bloat.

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?

For a straightforward read tool with 100% schema coverage, no output schema, and no nested objects, the description is largely complete. It orients the agent on when to use it (diagnosing user-visible page errors), what it returns (most recent entries), and what it excludes (mobile/native sessions). It could briefly note that multiple calls may be needed to page through history, but given the simple 3-parameter signature, this is a minor gap.

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?

Schema description coverage is 100%, so the schema already documents all three parameters well. The description adds value by noting the 'most recent entries' default behavior which contextualizes the limit parameter, and the level parameter's error-filtering use case is implied. Baseline would be 3, but the description's framing of 'most recent' and 'returns the most recent entries' enriches understanding of both limit and the ordering behavior beyond what the schema's 'most recent first-shown' covers.

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 states the tool reads browser CONSOLE logs for a browser session, specifying it captures DevTools console output (JS errors, warnings, console.log) and returns the most recent entries. It distinguishes itself from the sibling android_devtools_console_logs and ios_safari_console_logs by explicitly being a browser-session tool, and from session_network_logs by focusing on console rather than network.

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?

The description gives clear usage context ('Use this to diagnose page errors the user is seeing') and provides an explicit exclusion (browser sessions only, returns nothing for mobile/native device sessions). While it names no specific alternative tool, the mobile exclusion implicitly references android_devtools_console_logs and ios_safari_console_logs as the appropriate alternatives for non-browser sessions.

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