log_work

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

No annotations are provided, so the description carries the full disclosure burden. It does convey append semantics and the defaulting behavior for date ('today'), but says nothing about whether entries are immutable without delete_entry, where the diary is persisted, or what the call returns on success. For a write tool with zero annotation coverage this is adequate but thin.

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 sentences: the first front-loads the core action and the second front-loads the trigger. Nothing is redundant with the title and nothing could be cut without losing guidance.

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 four-parameter append tool with no output schema and no annotations, the essentials are covered, but an agent gets no signal about return value, persistence location, or interaction with the edit/delete siblings. Complete enough to call, not complete enough to reason about consequences.

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 all four parameters (text, date, tags, time) are already documented with formats and defaults. The description only echoes the date/timestamp idea ('for today (or a given date)') and adds no meaning about text phrasing or how tags are used downstream, so the baseline of 3 applies.

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 uses a specific verb+resource pair, 'Append a timestamped entry to the developer diary', which tells an agent exactly what is created and where. It falls short of a 5 because it doesn't differentiate from siblings such as edit_entry or delete_entry, other than the implicit 'append' contrast.

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?

It gives a concrete trigger condition: 'whenever the user says they finished/did/fixed something and wants it recorded.' That is strong positive guidance but there is no when-not guidance and no explicit routing to alternatives like edit_entry when the user wants to correct an existing entry.

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