project_set_setting

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

With no annotations, the description carries the full burden and does well: it discloses that missing intermediate objects are created when create=true, that the file is rewritten atomically, and that the previous value is returned. It omits permission/auth requirements and failure behavior, keeping it just short of a 5.

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?

Front-loaded with the verb+resource, then progressively details examples, flags, and return behavior. Dense but every sentence earns its place; the wording is slightly run-on but not padded.

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, the description covers mutation semantics, atomicity, and return value, and an output schema exists so returns need not be over-explained. Missing only parameters_file semantics and any auth/error context.

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 0%, so the description must compensate, and it does for most parameters: pointer (JSON Pointer syntax with examples), value, create (creates intermediates), and stage (pointer relative to its stage_settings). Only parameters_file is left without explicit meaning, a minor gap in an otherwise strong compensation.

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+resource ('Set (or add) any value in a ProjectParameters.json by JSON Pointer') and gives two concrete pointer/value examples, including an append case. It is clearly distinct from siblings like project_get_setting and project_delete_setting without opening either schema.

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?

Usage is implied through worked examples (single value, list append) and the create/stage flags, so an agent can infer the mechanics. However, it never states when to prefer this generic setter over specialized siblings such as project_add_process, project_update_solver, or project_update_process, nor when-not to use it.

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