delimit_social_history

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

With no annotations, the description carries the full burden. It correctly indicates a read operation ('View') and mentions output context for Reddit, but does not disclose any behavioral traits like data freshness, pagination, authentication requirements, or rate limits. More detail would improve transparency.

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 three sentences long and delivers key information without excessive verbosity. It is front-loaded with the core purpose. Minor redundancy ('recall prior conversations' and 'so you can reference') could be trimmed, but overall it is efficient.

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 an output schema exists, the description adequately covers the tool's function and the extra context for Reddit. It could mention Twitter output format or pagination behavior, but for a read tool with optional filters and a defined output schema, it is sufficiently 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?

All four parameters are already well-described in the input schema (100% coverage). The description reinforces their purpose ('filter by platform, Reddit user, or subreddit') and adds context about Reddit comment output, but does not provide significant new meaning beyond the schema.

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 views recent social media post history, specifies filtering by platform, user, subreddit, and explains the context provided for Reddit comments. It distinguishes itself from sibling social tools (e.g., delimit_social_post, delimit_social_accounts) by focusing on recall of prior conversations.

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 for recalling prior conversations and mentions filtering, but does not explicitly state when not to use it or provide alternatives. The mention of 'Pro' suggests a licensing requirement, but no guidance on comparison to other social tools is given.

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