list_hk_filings

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

No annotations are provided, so the description carries the full behavioral burden, yet it discloses nothing beyond the basic listing action — no mention of default ordering, pagination behavior, rate limits, or whether results are cached. For a read-only list tool this is a modest gap, but with zero annotation coverage the disclosure is 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?

A single tight sentence with no filler, front-loading the verb and resource. It is arguably too terse given the missing usage guidance, but nothing in it is wasteful.

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 need not be explained, and all four parameters are documented in the schema. However, the description lacks the disambiguation against the many sibling filing-listing tools that an agent would need to select confidently.

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 the meanings of ticker_or_name, form, year, and limit are already documented in the schema with defaults. The description adds no syntax, format, or example guidance beyond what the schema provides, 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?

States a specific verb (List) and resource (filings/announcements) with exchange scope (HK stock company), which implicitly separates it from list_szse_filings, list_sse_filings, and list_bse_filings. It does not explicitly name or contrast with those siblings, but the HK qualifier is enough for an agent to route correctly.

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 gives no when-to-use guidance, no prerequisites, and no indication of how it relates to nearby tools like list_filings, get_hk_company, or get_hk_section. It simply states what the tool does with no context on selection.

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