spritecook-workflow-essentials
Shared workflow rules for SpriteCook. Use together with spritecook-generate-sprites or spritecook-animate-assets for credits, downloads, asset manifests, safe auth handling, and recommended defaults.
What this skill does
# SpriteCook Workflow Essentials Use this alongside the SpriteCook image or animation skill whenever SpriteCook MCP tools are available. **Requires:** SpriteCook MCP server connected to your editor. Set up with `npx spritecook-mcp setup` or see [spritecook.ai](https://spritecook.ai). ## Preflight Checklist 1. Check credits first with `get_credit_balance` before starting a batch or multi-asset workflow. 2. Prefer presigned download URLs over authenticated asset endpoints. 3. Save important `asset_id` values in a local manifest whenever there is a writable workspace, unless the user explicitly wants a throwaway result. 4. When a workflow involves follow-up generations or animations for the same subject, identify and reuse the canonical `asset_id` instead of generating from scratch again. 5. If the agent loses track of generated asset IDs, recover them with `list_recent_assets(limit=...)` before failing. ## Credential Safety - Never ask the user to paste a SpriteCook API key into chat, prompts, code blocks, shell commands, or generated files. - Never print, persist, echo, or inline API keys or `Authorization` headers in agent output. - Prefer SpriteCook MCP tools, presigned URLs, or a preconfigured local connector/helper that handles authentication outside the prompt. - If a raw API call is required and no authenticated helper exists, stop and ask the user to configure one. ## Defaults - Prefer `smart_crop_mode="tightest"` for the best default results. Use `"power_of_2"` only when the user explicitly asks for it. - Model guidance: - `gemini-2.5-flash-image`: cheapest - `gemini-3.1-flash-image-preview`: recommended default - `gemini-3-pro-image-preview`: most expensive ## Asset Manifest - Treat `asset_id` as the primary stable identifier. - Store a 12-character SHA-256 prefix (`sha12`) for saved local files. - Use a minimal manifest entry shape: - `asset_id` - `sha12` - optional `label` - Prefer a simple machine-readable file such as `spritecook-assets.json` unless the project already has an asset manifest. - Before generating a new reference asset or asking the user for an asset id, check the local manifest first. - Before reusing a local file, compute its `sha12` and match it against the manifest to recover the correct `asset_id`. ## Downloading Assets - For recent-asset recovery flows, prefer `list_recent_assets(limit=...)`. - Treat `sprite_url` as the single primary asset URL to inspect, save, or hand off to downstream tools. - Treat `spritesheet_url` as an optional secondary artifact. Use it only when present and only when you specifically need a spritesheet export. - For single-asset inspection flows, `get_asset_metadata(asset_id)` also exposes a primary `url` plus optional `spritesheet_url`. - Avoid relying on low-level internal fields such as `_presigned_pixel_url` or `_presigned_url` in agent-facing workflows unless no higher-level field is available. - Avoid direct authenticated download endpoints in skill-driven workflows unless a helper handles auth out of band.
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