chromium_parse_sessions_tool

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

With no annotations provided, the description must disclose behavioral traits itself. It only states it parses files and gives a profile path example, but does not indicate whether the operation is read-only, requires permissions, handles encrypted data, or has any limitations. This lacks sufficient transparency for a tool with no annotation support.

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, with the first sentence front-loading the core action and resource. The second sentence provides a relevant concrete example path without unnecessary verbosity, earning its place.

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?

Given that the schema fully documents all five parameters and an output schema exists, the description is adequate but minimal. It lacks explicit usage context and behavioral details, but the tool's purpose is discernible from the name and description, and the schema covers invocation details.

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 baseline is 3. The description adds marginal value by giving a concrete Windows profile path example, which clarifies profile_path beyond the schema's generic 'Absolute path' description, but it does not enhance understanding of the filter parameters.

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 'Parse Chromium session restore files from a browser profile,' using a specific verb and resource. This distinguishes it from sibling tools like chromium_parse_history or chromium_parse_bookmarks, which target different data types.

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 provides no explicit guidance on when to use this tool versus alternatives. While the purpose is clear, there is no mention of exclusions, prerequisites, or comparisons to related tools, leaving the agent to infer usage from the name alone.

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