{"version":"2.1.265","anchor":"artifact-publish-new-mcp-store-write-capability-kind-and","canonical_anchor":"artifact-publish-new-mcp-store-write-capability-kind-and","heading":"Artifact publish: new \"mcp\" store-write capability kind and \"durable_declined\" live-subscription state","tier":"notice","area":"Artifacts","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.265\/e\/artifact-publish-new-mcp-store-write-capability-kind-and","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.265","markdown":"### Artifact publish: new \"mcp\" store-write capability kind and \"durable_declined\" live-subscription state\n\nArtifacts add an \"mcp\" write capability and a new \"declined\" state for live comment replies\n\n**What**\n\nWhen Claude publishes an artifact (a generated document, app, or file shown alongside the conversation) that writes to a store, it now recognizes a new \"mcp\" store-write kind alongside the existing \"data\" and \"write_db\" kinds, with its own instruction text for the model.\n\nSeparately, for artifacts that can respond live to comments, there's now a \"durable_declined\" result: this covers the case where a request to let Claude reply to comments was asked for but not approved, distinct from the existing \"durable_refused\" case where the server itself rejected it.\n\n**Why**\n\nThe added \"mcp\" kind lets artifacts write through MCP (Model Context Protocol, a way for Claude to connect to external tools and services) connections, and the new \"durable_declined\" state gives a clearer, more specific message when a live-reply request simply wasn't approved rather than being rejected by the server.\n\n- Area: Artifacts\n- Names: `durable_declined`\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 2\/5"}