{"version":"2.1.288","anchor":"sdk-mcp-manifests-writer-check-refactored-and-a-remote-cowor","canonical_anchor":"sdk-mcp-manifests-writer-check-refactored-and-a-remote-cowor","heading":"Remote session owner-only check reworked, with a remote cowork case added","tier":"internal","area":"Sessions","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.288\/e\/sdk-mcp-manifests-writer-check-refactored-and-a-remote-cowor","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.288","markdown":"### Remote session owner-only check reworked, with a remote cowork case added\n\nThe check for whether a remote session is limited to the owner's account is now shared, and a separate check for remote cowork sessions was added\n\n**Unclear.** What the new switch controls in anything you see is not clear.\n\n**What**\n\nSome remote sessions only accept changes from the account that owns them. The check for this, used when handling MCP tool lists from the SDK, is now one shared piece of code instead of being written out in place. MCP servers are separate programs that give Claude extra tools, and the SDK is the kit for building programs on top of Claude Code. A separate check for `remote_cowork` sessions was added.\n\nA new remote switch also came with this change. It is on unless it is switched off remotely.\n\n**Why**\n\nThis reworks how remote sessions decide who is trusted to make changes.\n\n- Flag `tengu_calm_osprey`: On for this account, and not off by default (read for one account on one subscription tier against v2.1.288; this account: on, anonymous baseline: on, compiled default: on) These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.\n- Flag `tengu_sdk_mcp_manifests`: On for this account, and not off by default (read for one account on one subscription tier against v2.1.288; this account: on, anonymous baseline: on, compiled default: on) These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.\n- Area: Sessions\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 3\/5\n- Scope: individual\n- Heads-up: no"}