undo_fl_change

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

Annotations already declare this as non-read-only, non-destructive, and closed-world, and the description adds meaningful behavior: it restores only the latest matching bridge knob change and does not trigger global undo. It omits what happens when the plugin/value precondition is not met, leaving one behavioral gap.

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 two sentences, front-loaded with the action and its precondition, and contains no redundant restatement of annotations or schema. Every sentence contributes useful selection or invocation context.

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 zero-parameter undo operation with annotations and no output schema, the description supplies enough scope, precondition, and exclusion context to call it correctly. The main remaining gap is failure behavior when the plugin/value precondition does not hold.

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 tool defines zero parameters, so the schema carries no parameter-documentation burden. The description's mention of plugin and value matching refers to internal state conditions rather than inputs, which is a useful distinction.

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 states a specific action, 'Restore', and a specific resource, 'latest bridge knob change', while distinguishing it from FL's global undo. It does not explicitly differentiate from sibling tools such as set_fl_parameter, so sibling routing is only partially supported.

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?

It gives a clear usage condition: the plugin and value must still match. It also includes an exclusion by saying it does not invoke FL's global undo, but it does not name the alternative tool to use when the precondition fails or a broader undo is needed.

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