Update Flag Targeting

Change how an existing Harness FME feature flag serves traffic in one or more environments. Always read the current definition first, then merge-patch only what changes. Show a diff of just what changed and use plain-language before/after to describe who gets what.

Related: Segment membership changes are /manage-segments; deep flag analysis (impact, dependencies, single-flag state) is /explain-flag. Reverse-lookup scans (dependents, segment usage) are in tool-map.md.

Tools

Works through the Harness MCP server or the Harness CLI; names are from tool-map.md.