unlock_pdf

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

No annotations are provided, so the description carries the full burden. It discloses the return format (base64 PDF) and core action (remove restrictions), but lacks details on error scenarios (e.g., incorrect password), whether the password is truly optional, or any side effects. This is adequate but not rich.

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?

Description is a single sentence of 14 words, no filler. It directly states the action and output, meeting the front-loading principle.

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's simplicity (2 parameters, no output schema), the description covers the core functionality and return type. However, it could mention error behavior or constraints (e.g., only removes owner password, not user password) for full completeness. Still mostly adequate.

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 100%, so the baseline is 3. The description adds no extra meaning beyond the schema, which already describes the parameters well. No parameter examples or constraints are provided beyond what's in the schema.

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?

Description clearly states the tool removes permission restrictions (owner password) from a PDF and returns unlocked base64 PDF. This specific verb+resource combination distinguishes it from sibling tools like compress_pdf (compression), merge_pdfs (merging), and pdf_to_word (conversion).

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?

No explicit guidelines for when to use or avoid this tool. While the task is unique among siblings, the description does not mention alternatives or cases where this tool is inappropriate (e.g., if the PDF is encrypted with a user password). Usage is implied but not guided.

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