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

With no annotations, the description carries the full burden, and it does disclose two genuinely useful facts: this is a WRITE operation and it "returns instructions" rather than completing the write directly (implying a follow-up signing step). It still omits permissions required, reversibility, whether unlisted keys are preserved, and the shape of the returned instructions.

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 short fragments with no filler, and the critical "WRITE operation" flag is front-loaded. However, the terseness comes at the cost of substance — the endpoint path is stated while the actual semantics of key/value/dataType are not, so the space is not optimally spent.

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 5-parameter mutation tool with no annotations, no output schema, and 40% schema coverage, the description leaves too much open: no explanation of the undocumented parameters, no description of the returned signing instructions, and no note on what state changes occur. It conveys the endpoint and write nature but not enough to invoke the tool 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 coverage is only 40% — key, value, and dataType have no schema descriptions at all — and the description adds nothing about them (no key namespace/format, no dataType defaulting behavior, no value encoding). The only schema-documented parameter (chain) is not addressed either, so the low-coverage gap is not compensated.

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?

"Config writes" plus the endpoint hint at a key/value config mutation for an agent, but the description never states the verb+resource plainly ("set a config value for an agent") — the tool name does most of that work. It is distinguishable from actora_config_get/actora_config_list only by implication, not by explicit statement.

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 guidance on when to call this versus actora_config_get, actora_config_list, or actora_central_agent_update. The only constraint offered is that writes are owner-signed, with no prerequisites, no when-not conditions, and no mention of what happens if the key already exists.

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