connect_db

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

The description lacks any disclosure about side effects, error handling, or state changes. It does not say whether connecting creates the database file if it doesn't exist, whether a persistent connection is opened, or if a connection handle is returned. With no annotations to provide safety or side-effect hints, the description leaves critical behavioral unknowns.

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, consisting of a single 7-word sentence. It communicates the core purpose without any unnecessary words or filler. Every word earns 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 the simple input schema and the presence of an output schema (not shown), the description is still incomplete. It omits prerequisites, return values, and side-effect information. For a tool that establishes a connection, an agent would need to know whether to call this before queries, what to do with the result, and how to handle existing vs. non-existing database files. The lack of behavioral and usage context makes it insufficiently complete.

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 only parameter, database_path, is not explained beyond its name. The schema has zero description coverage (0%), and the description merely mentions an 'SQLite database file' without linking it to the parameter format, constraints, or behavior (e.g., relative vs. absolute path). It fails to compensate for the lack of schema documentation.

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's function: 'Connect to an SQLite database file.' It uses a specific verb (connect) and resource (SQLite database file), distinguishing it from sibling tools like execute_query, list_tables, and export_to_csv, which are about querying and exporting. No ambiguity about the core purpose.

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 about when to use this tool versus alternatives. The description does not mention that establishing a connection is a prerequisite for execute_query or list_tables, nor does it explain the connection lifecycle. There is no explicit or implicit contextual advice for usage.

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