What problem does it solve? Designing custom character art for TMT Office requires producing a strictly constrained, data-only .tmtavatar.json pack that passes validation and can be safely installed and applied to an identity profile without corrupting revisions or breaking fallback behavior. ## Core Features & Use Cases - Pack Authoring Rules: Enforces the exact schema for v1 (16×24, 16 colors) and v2 (32×48, 256 colors) indexed-pixel avatars, including palette, label, license, and size constraints. - Validation and Preview: Runs read-only validation via tmt office avatar validate and optional preview rendering, interpreting warnings without overriding the user's artistic intent. - Install and Apply Workflow: Discovers the catalog revision, installs the pack, and applies avatarRef to an identity profile using revision-checked writes with conflict recovery. - Use Case: A user wants a custom pixel robot for their reviewer agent. You compose the pixel grid, validate the pack, install it against the current catalog revision, and apply it to the reviewer's profile while preserving their default appearance for fallback. ## Quick Start Create a TMT Office avatar pack for my agent named reviewer, validate it, and apply it to that identity's profile.