{"name":"tengu_ptc_enabled","slug":"tengu-ptc-enabled","family":"flag","title":"Feature flags","noun":"feature flag","description":"Internal cleanup of the SDK control-message handlers, no functional change found","description_source":"entry","described_by":{"version":"2.1.267","anchor":"sdk-control-protocol-handler-mcp-set-serversreload-plugins"},"presence":{"first_seen":"2.1.206","removed_in":null,"in_current_build":true,"newest_mined":"2.1.309","builds":92,"mined_builds":150,"first_cited":{"version":"2.1.287","released_at":"2026-10-01 16:59:25","spans":1}},"aliases":[],"entries":[{"version":"2.1.301","anchor":"sdk-reload-plugins-accepts-add-plugins-mcp-call-gains-resul","heading":"Plugin reload requests can install plugins first, and MCP calls can hide results","line":"A program embedding Claude Code can now add plugins as part of a reload request, and can mark an MCP tool result as not for the model","released_at":"2026-10-15 14:34:23","reason":"gate cited by this entry"},{"version":"2.1.301","anchor":"mcp-tool-result-path-gains-a-resultnotformodel-pass-throug","heading":"Some MCP tool results now skip the large-output handling","line":"MCP tool results marked as not meant for Claude are now returned as they are, without being cut short or saved to a file","released_at":"2026-10-15 14:34:23","reason":"gate cited by this entry"},{"version":"2.1.292","anchor":"staged-mcp-call-refused-for-some-servers-deferconnect-gate","heading":"SDK MCP setup no longer delays connecting, and some MCP calls are refused","line":"Setting MCP servers from the SDK no longer delays connecting behind a remote switch, and calls to some servers are now refused","released_at":"2026-10-06 17:10:31","reason":"gate cited by this entry"},{"version":"2.1.292","anchor":"mcp-set-servers-no-longer-defers-connections-gate-removed","heading":"Setting MCP servers from a host app now connects them right away","line":"When a host program replaces the MCP server list, Claude Code now always connects those servers at once instead of sometimes deferring","released_at":"2026-10-06 17:10:31","reason":"gate cited by this entry"},{"version":"2.1.287","anchor":"remote-bridge-new-reset-step-added-to-transport-rebuild","heading":"Extra reset step when the remote connection is rebuilt","line":"Rebuilding the remote control connection now runs an extra reset step, and reloading plugins runs an extra step first","released_at":"2026-10-01 16:59:25","reason":"gate cited by this entry"},{"version":"2.1.267","anchor":"sdk-control-protocol-handler-mcp-set-serversreload-plugins","heading":"SDK control-protocol handler (mcp_set_servers\/reload_plugins\/reload_skills\/mcp_call etc.) \u2014 no discernible functional change","line":"Internal cleanup of the SDK control-message handlers, no functional change found","released_at":"2026-09-09 18:25:42","reason":"gate cited by this entry"}],"entries_total":6,"docs":[],"docs_total":0,"gates":[{"version":"2.1.301","state":"unknown","account":null,"baseline":null,"code_default":true},{"version":"2.1.292","state":"unknown","account":null,"baseline":null,"code_default":true},{"version":"2.1.287","state":"unknown","account":null,"baseline":null,"code_default":true},{"version":"2.1.267","state":"unknown","account":null,"baseline":null,"code_default":true}],"related":[{"name":"tengu_1p_event_batch_config","slug":"tengu-1p-event-batch-config","description":"Default `{}`. Batch settings for Claude Code's first-party event logger: `scheduledDelayMillis` (falls back to `OTEL_LOGS_EXPORT_INTERVAL`, then `10000`), `maxExportBatchSize` (default `200`) and `maxQueueSize` (default `8192`), plus `skipAuth`, `maxAttempts`, `path` and `baseUrl` passed to the exporter. When the value changes during a session, the logger is flushed and rebuilt with the new settings."},{"name":"tengu_account_plugins_sync_enabled","slug":"tengu-account-plugins-sync-enabled","description":"Plugins you enabled on claude.ai can be pulled to your machine, but only your account server can enable it."},{"name":"tengu_account_skills_sync_enabled","slug":"tengu-account-skills-sync-enabled","description":"Account skills-sync eligibility logic generalized into a reusable descriptor"},{"name":"tengu_adopt_claim","slug":"tengu-adopt-claim","description":"Stale adopted session claims now return their data marked stale instead of being discarded"},{"name":"tengu_adopt_link","slug":"tengu-adopt-link","description":"Adopting an agent's transcript now hard-links the file, copying only when linking is impossible."},{"name":"tengu_adopt_relink","slug":"tengu-adopt-relink","description":"On startup, subagent transcripts stored as symlinks are converted to hard links or copies."},{"name":"tengu_advisor_unknown_content","slug":"tengu-advisor-unknown-content","description":"Advisor output you couldn't see now shows an error or a clear \"declined to advise\" message."},{"name":"tengu_agent_frontmatter_mode_widening_carry_ignored","slug":"tengu-agent-frontmatter-mode-widening-carry-ignored","description":"An agent definition's permissionMode can no longer widen the mode inherited from its parent context."},{"name":"tengu_agent_hooks_origin_untrusted","slug":"tengu-agent-hooks-origin-untrusted","description":"Agents in untrusted folders can no longer define inline MCP servers; trust the project to allow it."},{"name":"tengu_agent_list_attach","slug":"tengu-agent-list-attach","description":"Default `false`. When `CLAUDE_CODE_AGENT_LIST_IN_MESSAGES` is unset or not a recognised boolean, `true` sends the `Agent` tool's list of agent types as `agent_listing_delta` attachments in the conversation (after the first, only the added and removed types) and leaves it out of the tool description. A truthy `CLAUDE_CODE_DISABLE_ATTACHMENTS` or `CLAUDE_CODE_SIMPLE` keeps the list in the description."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-ptc-enabled","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}