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

With no annotations provided, the description carries the full burden, and it delivers real behavioral detail: it returns '{changed: false}' and does not comment when the picture is unchanged, and it writes to a 'create-once' work item rather than creating a new one each run. This exceeds what the schema alone reveals, though it does not cover overwrite vs. append or auth requirements.

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 tightly written and front-loaded: purpose in the first sentence, artifact details, no-op return behavior, and bot-side scheduling each in their own clause. Every sentence earns its place with zero 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?

An output schema exists, so return values are covered. The description explains what the file contains, where it attaches, the no-op behavior, and the scheduling model. The only notable gap is what happens on a changed picture (presumably it does comment), which is implied but not stated.

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 both parameters are already documented. The description adds minimal parameter-specific meaning beyond the schema — it reinforces that slug targets a Person/Organization rather than a Contact or Deal, but introduces no new syntax or formatting guidance. 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?

The description states a specific verb and resource: 'Writes one shared file (stakeholders, initiative, objections, last evidence, next review, five-line brief) attached as an artifact on a create-once account work item.' This is concrete enough to distinguish it from generic siblings like file_create, work_create, and storage_attach, which have no weekly-brief semantics.

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 scoping context ('for one strategic Person or Organization', 'Weekly schedule is bot-side') and the schema notes slug is 'not Contact or Deal', which narrows usage. However, it never names an alternative or states an explicit when-not-to-use condition, leaving the agent to infer that this is a scheduled bot task rather than a manually invoked tool.

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