added 2026-09-30can overwrite dataidempotent
Rename a label and/or change its colour (#rrggbb). Needs edit access to the project. Provide new_name, color or both. Issues keep the label.
colorstringoptionalNew colour as #rrggbbnamestringrequiredCurrent label name (case-insensitive)new_namestringoptionalNew name, 1–40 characters, unique in the projectprojectstringrequiredProject key
Returns
colorstringoptional#rrggbb (update_label)namestringrequiredAfter the update; delete_label: the deleted nameprojectstringrequired
- 2026-10-03 — Also answers structuredContent (see outputSchema); a failed call adds structuredContent.error. Text unchanged. Details: /docs/mcp, "Structured results and errors".
- 2026-10-04 — Claude Code 2.1.288+ (clientInfo claude-code): the text of a successful answer is itself up to 512 bytes, else "Result in structuredContent (N bytes)."; structuredContent and errors are unchanged. See /docs/mcp.