substack_live_blog_end

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

With no annotations provided, the description carries full burden but lacks behavioral details. It states the action ('End') but does not disclose effects (e.g., whether the session is saved, deleted, or archived), permissions required, or error conditions. This is a significant gap for a mutation tool with zero annotation coverage.

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, front-loaded sentence with zero waste. It directly conveys the tool's purpose without unnecessary words, making it highly efficient 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?

Given the tool's moderate complexity (ending a live session with a parameter) and no annotations or output schema, the description is minimally adequate. It states what the tool does but lacks details on behavior, outcomes, or error handling, leaving gaps for an agent to operate effectively.

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, documenting the single parameter 'publish' with its type, default, and purpose. The description does not add parameter details beyond the schema, but with only one parameter and high schema coverage, a baseline of 4 is appropriate as no compensation is needed.

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 specific action ('End') and target resource ('the current live blogging session'), distinguishing it from siblings like 'substack_live_blog_start' (which begins a session) and 'substack_publish' (which publishes content). It uses precise verb+resource phrasing without redundancy.

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 implies usage context by referencing 'the current live blogging session', suggesting it should be used when a live session is active. However, it does not explicitly state when to use it versus alternatives (e.g., 'substack_publish' for non-live content) or provide exclusions, leaving some ambiguity.

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