sync_workspace_index

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

With no annotations, the description carries the full behavioral burden. It discloses that an empty call is a read/report operation and that folderComments triggers a write-like action, but it does not state whether changes are persistent, reversible, or what side effects 'set folder descriptions' has on index.json. Some behavior is implied but not fully transparent.

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?

Two concise sentences with no filler. The main operation is front-loaded, and each sentence communicates a distinct usage mode. Nothing is redundant.

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 tool with one optional parameter and no output schema, the description covers both invocation modes and their intended effects. It is slightly incomplete in describing what 'reports mismatches' returns and what exactly gets updated, but it provides enough for an agent to call the tool correctly in either mode.

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?

Schema description coverage is 100%, so the baseline is 3. The description adds value by explaining the effect of folderComments ('to set folder descriptions') and contrasting it with the empty-call behavior. This exceeds what the schema alone provides.

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 opens with a specific verb and resource: 'Reconciles index.json with the filesystem.' It also clarifies the two operational modes, so there is no ambiguity about what the tool does or how it differs from the memory- and search-oriented siblings.

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 explicitly distinguishes when to call without arguments ('Empty call scans and reports mismatches') and when to provide folderComments ('to set folder descriptions'). It does not mention alternatives or when-not-to-use this tool relative to siblings, so it falls just short of a 5.

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