NEXO Brain

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

With no annotations provided, the description carries full burden for behavioral disclosure. It mentions 'conflict detection' which hints at some behavioral trait, but doesn't explain what conflicts are detected, how they're reported, or what the output looks like. It doesn't address whether this is a read-only operation, whether it requires permissions, or any rate limits. For a tool with no annotation coverage, this is inadequate.

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 with zero wasted words. It's front-loaded with the core functionality ('Show all tracked files') and adds qualifying information ('across all active sessions with conflict detection') without unnecessary elaboration. 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 tool has no parameters, an output schema exists (which should document return values), and no annotations, the description provides the basic purpose but lacks important context. It doesn't explain what 'conflict detection' entails or what format the output takes. For a tool that presumably returns file tracking information across sessions, more behavioral context would be helpful despite the output schema.

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 tool has 0 parameters with 100% schema description coverage, so the schema already fully documents the parameter situation. The description appropriately doesn't waste space discussing parameters that don't exist. This meets the baseline expectation for a parameterless tool.

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 ('Show all tracked files') and resource ('across all active sessions'), providing a specific verb+resource combination. It also mentions 'with conflict detection' which adds specificity. However, it doesn't explicitly distinguish this tool from sibling tools like 'nexo_track' or 'nexo_untrack' which likely handle file tracking operations.

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 provides no guidance on when to use this tool versus alternatives. There are no explicit when/when-not instructions, no mention of prerequisites, and no comparison to sibling tools like 'nexo_track' or 'nexo_untrack' that appear related to file tracking. The agent must infer usage context from the tool name alone.

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