form_execute_external_actions

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

Annotations already declare readOnlyHint=false, openWorldHint=true, idempotentHint=false, destructiveHint=false, so the agent knows this is a non-idempotent call that reaches external systems. The description reinforces this with "Execute multiple external actions" and names the underlying endpoint, but it never states what those external actions actually do (orchestrator/ABX calls visible only in the schema enum), whether they can mutate remote state, or how failures across multiple actions are reported.

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 lines, front-loaded with the purpose before the raw endpoint. The trailing HTTP path adds little for an agent but is cheap; there is no filler prose.

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 tool taking a nested array of external-action descriptors, with no output schema and no annotations covering side effects, the description is far too thin. It leaves unexplained how requestIds chain, how sourceId/projectId scope the request, what the returned "list of values" looks like, and what happens when one of several actions fails.

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 description mentions no parameters at all; it only restates the resource path. With schema description coverage at 67%, the complex `body` array items (uri, dataSource, requestId, parameters, externalSourceProviderType) are barely annotated, and the non-obvious chaining contract — parameters use `useResultFromRequestId` to consume the output of an earlier request — is explained nowhere.

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 and resource: "Execute multiple external actions to get a list of values (for the UI)", and the plural "actions" plus the "list of values" phrasing signals batch/resolution semantics. It does not, however, distinguish itself from the very similar sibling form_execute_external_action (singular), which an agent could easily confuse it with.

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 only usage cue is the parenthetical "(for the UI)", which hints at a form-rendering context but gives no explicit when-to-use or when-not. No alternatives are named, even though form_get_external_value, form_lookup_external_resources, and form_execute_external_action sit right next to it and differ only by granularity.

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