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Save a GenAds pack

native.genads_save_pack
DestructiveIdempotent

Save a GenAds pack. Use the exact saved revision; zero creates a new resource. Reuse operation_id after an uncertain response.

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.genads_save_pack"
  }
}

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

A3.7/5.0
Behavior4/5

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

The annotations already declare destructiveHint=true and idempotentHint=true, so the safety profile is known; the description earns credit for adding the mechanics behind those hints — optimistic concurrency via the exact saved revision, revision zero meaning create, and operation_id reuse for a safe retry after an ambiguous result. It does not state what data is lost on a conflicting overwrite or what the response contains, but the added context is substantive.

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

Conciseness5/5

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

Three tight sentences with the core action front-loaded, followed by the two failure-prevention rules. Every sentence carries distinct information and there is no filler or restatement of the title.

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

Completeness3/5

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

This is a nested, six-parameter mutation with an output schema, and the description covers the two riskiest behaviors (concurrency and idempotent retry) well. It leaves unexplained how work_id and request_key differ in role, and what the read_skills proof requirement means in practice, which matters for a call that will be rejected if those are wrong.

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 description coverage is 50%, and the schema already documents read_skills, expected_catalog_version, and publication_proposal_id in detail. The description adds genuine meaning for expected_revision ('zero creates a new resource') and operation_id ('reuse after an uncertain response'), but says nothing about work_id, request_key, or the nested body, so half the surface is still undocumented in both places.

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 opens with a specific verb+resource pair, 'Save a GenAds pack,' which is immediately distinguishable from the many sibling save tools (save_genads_brief, save_genads_concept, save_genads_media, save_genads_variant). It stops short of naming the adjacent pack tools such as native.genads_export_pack or native.genads_pack_export, so the boundary of what 'pack' means is inferred rather than stated.

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

Usage Guidelines3/5

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

It gives real operational guidance — use the exact saved revision, zero creates a new resource, reuse operation_id after an uncertain response — but never says when to call this versus the sibling pack, export, or media save tools. Usage is implied by the create-vs-update note rather than an explicit when/when-not statement.

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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