append_to_note_fs_tool

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

No annotations are provided, so the description carries full responsibility. It clearly states the behavior (appends at end, not modifies existing content) and performance (<100ms). It does not mention authorization or side effects, but the append operation is inherently low-risk. The 'Returns' section adds clarity on outcome.

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 highly concise: a single lead sentence followed by bullet-pointed 'When to use', 'Performance', and 'Returns' sections. Every sentence adds utility without redundancy. It is front-loaded with the core action.

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 no output schema, the description appropriately covers the return value and performance. The sibling list is large but not directly addressed; however, the tool's distinct append-only purpose is clear. It could briefly note that the tool does not create the note if missing, but this is evident from the name and siblings.

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 coverage is 75%, and the description adds minimal value beyond schema definitions. For 'content', it simply restates 'append to the end of the note' and for 'filepath' it references the schema. The description does not elaborate on formatting or constraints beyond what the schema 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 clearly states the action: 'Append content to the end of a note.' It specifies the verb ('append'), resource ('note'), and exactly where the content goes ('very end of the file'). This distinguishes it from sibling tools like insert_after_heading_fs_tool or update_note_tool.

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 explicit 'When to use' scenarios (appendices, logs, chronological content). However, it does not mention when NOT to use it or suggest alternatives (e.g., for mid-note insertion use insert_after_* tools). Siblings include relevant alternatives, making this a minor gap.

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