WeChat Official Account Image Generator

Problem

WeChat Official Account images are not interchangeable assets. Message-flow covers, square small covers, secondary covers, article graphics, QR-code cards, and video covers each use different canvas ratios, and phone viewers depend on readable text. A vague request like "make a cover" often needs to work both as a wide cover and a square crop; generating one full image can push key elements into the wrong region and force rework.

How It Works

This skill treats generation as a controlled workflow: clarify, confirm, then generate.

• Size selection: prefer exact user-provided dimensions; otherwise choose by type, such as 900 × 383 for the main cover, 383 × 383 for the small cover, 200 × 200 for secondary covers, and 1080 × 1080 for square article images.
• Cover compatibility: when the request is only "cover image", default to a 1283 × 383 compatible layout: the left 900 × 383 area holds the primary visual, while the right 383 × 383 area must stand alone without relying on text from the left.
• Generation guardrails: after enough information is available, summarize image type, dimensions, topic, copy, style, required elements, and constraints, then wait for explicit user confirmation before calling bitmap generation or editing tools.
• Stitching and validation: for compatible covers, generate the left and right regions separately, stitch them with scripts/stitch_compatible_cover.py into 1283 × 383, and verify the final dimensions.

Boundaries

It is useful for turning rough WeChat content requests into executable bitmap-generation tasks, but it does not replace a brand style system or complex illustration work. If the user has exact dimensions, those dimensions take priority; if the request is ambiguous, the skill proposes a default and asks only the most decision-relevant question.