{"version":"2.1.208","anchor":"official-plugin-prompt-overrides-via-server-side-feature-fla","canonical_anchor":"official-plugin-prompt-overrides-via-server-side-feature-fla","heading":"Official plugin prompt overrides via server-side feature flag","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.208\/e\/official-plugin-prompt-overrides-via-server-side-feature-fla","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.208","markdown":"### Official plugin prompt overrides via server-side feature flag\n\n**What**\n\nAnthropic can now push prompt overrides for official (first-party) plugins via the `tengu_official_plugin_prompt_overrides` GrowthBook feature flag. This allows updating plugin instructions server-side without requiring a CLI release.\n\n**Details**\n\n- Applies only to plugins from Anthropic's marketplace or known official plugin names\n- Overridable fields: `server_instructions`, `server_instructions_by_server`, `tools`, `search_hints`, `param_descriptions`, `prompts`, `skills`\n- If the GrowthBook payload fails schema validation, the baked-in plugin text is used and an error is logged\n- Per-server instruction overrides via `server_instructions_by_server` let different MCP servers within the same plugin get different instructions\n\n**Evidence**\n\nPlugin prompt override (search for `\"tengu_official_plugin_prompt_overrides\"`)"}