tapatalk_get_thread

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

Beyond the readOnlyHint annotation, the description discloses that content is returned as-is and may contain BBCode or HTML, which is a valuable behavioral detail. It also lists return fields (post content, authors, timestamps, attachments), adding context not present in annotations.

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 two sentences, front-loaded with the primary action ('Get posts in a topic thread'), followed by essential details about return fields and formatting behavior. Every sentence adds value with no filler or redundancy.

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 simple read-only tool with full schema coverage and no output schema, the description adequately covers purpose, return fields, and content format. Pagination is handled by the schema. Minor gap: it does not describe the exact output structure, but this is not critical given the schema coverage.

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 already provides 100% coverage with clear descriptions for all three parameters (topic_id, page, per_page). The description adds no further parameter-specific semantics beyond the term 'topic thread' which aligns with topic_id, so the baseline 3 is appropriate.

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?

Description starts with a specific verb+resource: 'Get posts in a topic thread.' It clearly states the tool's function and differentiates from sibling tools like tapatalk_get_topics (which lists topics) by focusing on posts within a single thread.

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?

Usage is implied by the description—this tool is for reading posts in a specific thread—but there is no explicit guidance on when to use it versus alternatives like tapatalk_get_thread_by_unread, which is a sibling tool specifically for unread threads. No exclusions or alternative checks are mentioned.

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