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

Annotations already cover the write/idempotency profile (readOnlyHint=false, idempotentHint=false, openWorldHint=true), but the description adds real context beyond them: the pack is 'sealed into the chain' (permanent/immutable record), dated, and attributed to the author, plus it is free. It still omits whether publishing is reversible or what the caller receives back.

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?

Three short sentences, front-loaded with the action and destination, and each clause adds distinct information (chain sealing, dating/credit, cost). No filler.

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?

This is a mutation tool with no output schema and a completely opaque nested-object parameter. The description should explain the pack's shape, prerequisites (account/proof), and what the caller gets back (receipt, hash, id), but covers none of these.

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?

There is a single required parameter 'pack' typed only as a bare nested object with zero schema description coverage. The description names 'Signal Pack' but never explains its structure, required fields, or format, leaving the agent with no way to construct a valid payload from the definition alone.

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?

States a specific verb ('Publish') and resource ('Signal Pack') with the destination ('open library'), which separates it from siblings like sebbi_list_packs, sebbi_check_pack, and sebbi_pack_reference. It stops short of explicitly naming those alternatives, so differentiation is implied rather than stated.

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 when-to-use guidance, no prerequisites, and no mention of alternatives. The description does not say whether an account, human proof, or payment step is required before publishing, which matters given the sibling tools sebbi_create_account and sebbi_check_human_proof exist.

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