Oscribble MCP Server

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

With no annotations, the description must fully disclose behavioral traits. It mentions 'calculate duration from start time', which adds useful context about timing behavior. However, it fails to describe critical aspects like whether this is a destructive mutation, what permissions are required, how errors are handled, or what the output looks like, leaving significant gaps.

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 a single, efficient sentence that directly states the tool's purpose and key behavior ('calculate duration from start time'). It is front-loaded with no unnecessary words, making it highly concise and well-structured.

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 complexity of a task completion tool with timing calculation, no annotations, and no output schema, the description is incomplete. It lacks details on behavioral implications (e.g., mutation effects, error handling), output format, and usage context, which are essential for an AI agent to invoke it correctly.

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 input schema has 100% description coverage, clearly documenting both parameters ('project_name' and 'task_id'). The description does not add any meaning beyond the schema, such as explaining how these parameters interact with the timing calculation. Baseline score of 3 is appropriate since the schema handles parameter documentation adequately.

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 action ('complete a task') and adds a specific behavior ('calculate duration from start time'), which distinguishes it from the sibling 'oscribble_complete_task'. However, it doesn't specify what resource is being completed (e.g., a task in a project management system), leaving some ambiguity.

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 explicit guidance is provided on when to use this tool versus alternatives like 'oscribble_complete_task' or 'oscribble_uncomplete_task'. The description implies usage for tasks with timing needs, but lacks context on prerequisites, error conditions, or when not to use it.

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