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Defines the API surface for account management and agent identification: - Add Account and Agent core schema objects - Add list_accounts task for discovering available accounts - Add account_id as optional field to get_products and create_media_buy - Include account attribution in media_buy responses - Document routing logic and error handling - Support billing proxy model (e.g., "Coke c/o Publicis") Resolves #868: clarifies who is buying (agent), on whose behalf (brand), and who gets billed (account). Enables three billing models: direct advertiser, advertiser via agency proxy, or agency as principal. Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
Clean up documentation to use consistent terminology: - Principal → Agent (authenticated caller) + Account (billing entity) - Update authentication.mdx to reference accounts-and-agents - Rename "Principals & Security" to "Accounts & Security" - Update glossary with Account/Agent definitions, deprecate Principal - Update navigation and cross-references - Replace "Principal" participant in diagrams with "Buyer" Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
- Rename principals-and-security.mdx to accounts-and-security.mdx - Fix "Agency as principal" example description to "Agency as direct buyer" - Remove agent field from response examples (not in schema) - Add schema links to authentication.mdx - Improve Principal deprecation note in glossary - Update all navigation references to renamed file - Add changeset Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The dist/docs/2.5.3/ is a versioned snapshot and should retain its original filenames. Only current docs (3.0-beta, latest) use the new accounts-and-security naming. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Links in dist/docs/2.5.3/ were using /docs/... paths which resolve to current docs (where principals-and-security was renamed). Updated to use /dist/docs/2.5.3/... paths to stay within the versioned snapshot. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Extends account/agent model to creative management: - sync-creatives-request: account_id for creative ownership - sync-creatives-response: account attribution in results - list-creatives-response: account per creative - creative-filters: account_ids filter for multi-account querying Addresses Yahoo feedback on creative ownership management. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
BaiyuScope3
reviewed
Jan 30, 2026
BaiyuScope3
approved these changes
Jan 30, 2026
- Remove agent.json: Agent identity comes from auth token, not a schema field. The schema was created but never referenced in the protocol. - Register account.json in index.json per review feedback - Update changeset and authentication docs to reflect removal Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
Adds protocol-level definitions for account management and agent identification, addressing issue #868.
AccountandAgentcore schema objectslist_accountstask for discovering accessible accountsaccount_idfield in get_products and create_media_buy requestsDesign
Three distinct entities in every billable operation:
Enables three billing scenarios: direct advertiser, advertiser via agency proxy, or agency as principal. Account creation is out of scope (seller-side process); the protocol defines what accounts look like and how to reference them.
Test Plan
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