timeline_set_setting

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

With no annotations provided, the description must fully disclose behavioral traits, but it only states that the tool writes a setting. It does not mention whether the current timeline is required, whether the operation is reversible, what validation occurs, or what success/error behavior to expect.

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?

The description is a single, front-loaded sentence with no unnecessary words. It is appropriately brief for a simple tool, though it leans toward under-specification rather than elegant conciseness.

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?

Despite having a simple schema and an output schema, the description lacks essential contextual guidance for a mutation tool: it does not explain when the setting is applied, whether a timeline must be loaded, or how the tool relates to timeline_get_setting. This leaves the agent uncertain about invocation expectations.

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?

The schema description coverage is 100%, with clear explanations for both 'key' and 'value' parameters, including concrete key examples. The description itself adds minimal semantic value beyond the schema, so a baseline score of 3 is appropriate.

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?

The description identifies the action ('Write') and resource ('timeline-specific setting'), making it clear this is a mutation tool for timeline settings. It distinguishes itself from siblings like timeline_get_setting and project_set_setting by specifying 'timeline-specific', though it doesn't name alternatives.

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 is given about when to use this tool versus alternatives, such as project_set_setting or timeline_get_setting. The phrase 'timeline-specific' implies scope but does not explain prerequisites, side effects, or situations where another tool would be more appropriate.

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