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Save a experiment in a linked GenAds project using its native command and exact observed revision

native.save_genads_experiment
DestructiveIdempotent

Save a experiment in a linked GenAds project using its native command and exact observed revision. Zero creates a resource.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "work_id": "<work_id>",
      "arguments": "<arguments>",
      "expected_catalog_version": "<expected_catalog_version>",
      "read_skills": "<read_skills>",
      "request_key": "<request_key>"
    },
    "name": "native.save_genads_experiment"
  }
}

Input Schema

NameRequiredDescriptionDefault
work_idYes
argumentsYes
read_skillsYesExact required native skills and their dependencies, copied from the accepted session bootstrap's skills array. Include only entries in that array. General mcp.* guides and native.{studio}.instructions are guidance, not native skill proofs.
request_keyYes
publication_proposal_idNoFor native Social scheduling, the exact server-approved publication proposal. This identifier cannot confer approval by itself.
expected_catalog_versionYesFor a new session, read a studios/{studio}/native/{pack} child toolset and copy invocation.catalog_version from a native tool descriptor. Do not use the top-level library version. For calls in an existing session, use that session proposal's catalog_version.

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

B3.1/5.0
Behavior3/5

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

Annotations already declare destructiveHint=true, idempotentHint=true and openWorldHint=true, so the safety profile is covered. The description adds real value with 'Zero creates a resource' (revision 0 means create rather than update) and the exact-revision precondition, but it never explains what happens on a revision mismatch, what gets overwritten on an update, or any retry/error behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two short sentences with the operation stated first and the revision semantics second; nothing is padded. It loses a point for awkward wording ('a experiment', 'native command') that reads as jargon rather than plain specification.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a six-parameter, nested-body mutation tool with an idempotency key and a required read_skills proof, the description is thin. It says nothing about the skills/catalog_version prerequisites it shares with its siblings, which are the most likely causes of a failed call; only the output schema relieves the burden of describing return values.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 50%, with the nested 'arguments' object and its required body fields fully structured but undocumented in prose. The description only maps 'exact observed revision' onto expected_revision and clarifies the zero case; work_id, arguments, and request_key receive no additional meaning.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description names a specific verb ('Save') and resource ('experiment') scoped to a linked GenAds project, and ties it to a native command at an exact observed revision. It does not, however, distinguish itself from the very similar sibling 'native.genads_save_experiment', so an agent cannot tell which save path to pick from the text alone.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no explicit when-to-use or when-not-to-use guidance, and no mention of the near-identical siblings (native.genads_save_experiment, native.genads_link_experiment) that an agent must choose between. The 'exact observed revision' phrasing implies a concurrency precondition but never states it as a rule.

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

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