AI prompt guide hub
AI Image Prompts for Designers
Use this hub to choose the right Fundy prompt path first, then draft, test, and hand off assets with clear quality gates before any image is approved for production.
If your goal is speed with low risk, start with route selection, then apply the matching guide in this order: define constraints, write a focused prompt block, generate draft previews in your model workflow, evaluate against measurable checks, then publish only after review and correction.
Open the Right Entry
Design teams lose less time when they pick the correct guide before writing the first line of prompt text. Different use cases fail for different reasons. Concept prompts fail on style drift, brand prompts fail on consistency, product prompts fail on realism and detail, and thumbnail prompts fail on readability. Select the entry point that matches the production risk.
If a target image includes social, storefront, e-commerce, ad, or in-app use, add an output condition to the prompt plan first. A useful rule: if the output has legal, usability, or campaign deadlines, start with the strictest guide and then scale back.
Decision Rules Before Writing Prompt Text
Use this sequence before drafting any prompt content.
- Define use case. Classify the output as one of: concept exploration, social asset, product shot, landing image, icon/thumbnail, or alt-text assist.
- Define success in one sentence. Example: "Readable at 320 px and follows brand blue family" or "Matches studio lighting for catalog listing".
- Set non-negotiables. Add explicit do nots, model limitations, and compliance constraints, then lock them in an avoid list.
- Choose tool route. Route to Structure, Brand, Product, or direct alt-text workflow depending on whether consistency or realism is the primary risk.
- Pick review gate. Decide if a quick internal check, design review, or client review is the first checkpoint before external generation output is accepted.
If the output depends on a legal claim, medical claim, public figure, or protected logo, stop this process and request an approved source phrase list or legal review before continuing.
Workflow A: Brand-safe concept pass
This is the recommended first pass for campaigns, brand assets, and repeated prompts across projects.
Inputs
- Campaign goal: convert, inform, recruit, persuade, explain, or announce.
- Visual constraints: palette, typography feel, contrast level, and prohibited styles.
- Audience intent: executives, shoppers, students, creatives, general public.
- Platform context: web hero, feed post, story card, print mockup.
Draft pattern
- Write one sentence for subject and action.
- Add setting and composition with camera language: angle, framing, distance, object hierarchy.
- Attach style block with 2 to 4 traits only to avoid dilution.
- Add quality floor: readable text size, no text overflow, no unintended watermarks.
- Add negatives for common drift points: clutter, over-ornamentation, incorrect brand color, low contrast.
Stop condition
Stop after 3 full iteration rounds and hand off to a visual reviewer if contrast errors, repeated style drift, or conflicting brand cues remain unresolved. Do not continue blind tweaking because model output quality usually degrades when prompts become longer without structured constraints.
Workflow B: Product photo reliability pass
Use this workflow for catalog, storefront, and feature cards where product truth and geometry matter more than mood.
Inputs
- Product name, SKU family, key material, and exact color references.
- Shot type: hero, packshot, lifestyle, macro, detail macro, or context prop shot.
- Lighting plan: neutral soft, hard dramatic, daylight, or controlled studio.
- Angle and focal risk level: front, 45 degree, overhead, close-crop.
Execution checks
- Edge and shape accuracy must be preserved, especially if the product has logos or packaging text.
- Background should serve separation, not dominate the subject.
- Scale and depth should stay plausible, not purely painterly unless explicitly requested.
- Every generated result should be mapped to an in-house checklist before final handoff.
Common failure triggers
- Material spec mismatch, for example metallic looking matte, or glass too sharp to match product physics.
- Typography drift if labels are present.
- Wrong dimension feel, such as a can that appears bottle-like due to angle errors.
Stop condition
Stop once the first pass violates physical plausibility and no constrained prompt version can recover after two rewrites. Move to manual photo pass planning or a human-led composition workflow.
Workflow C: Thumbnail and small-format pass
Small-format visuals break quickly if they are too abstract, too dense, or text-heavy.
Decision rules
- If width is below 500 px, prioritize silhouette and color blocks over micro details.
- If there is headline text, separate legibility from decorative texture in the prompt.
- If conversion is the metric, test two versions: high-contrast and warm contrast.
- If thumbnails are for discovery feeds, avoid over-complex scenes with too many actors or props.
Validation checks
- Can the subject be identified in under three seconds?
- Does it match the destination page tone and action?
- Is important brand contrast maintained after downscale?
- Can the eye path find focal point and CTA space quickly?
Stop condition
Stop when thumbnails pass the legibility checks but still fail style or conversion goals after two iterations. Escalate to hand-crafted composition variants using design canvas tools.
Workflow D: Alt text and accessibility workflow
Do not generate alt text from prompt memory alone. Alt text must describe actual output, not intention.
Correct sequence
- Review final rendered image and visible content only.
- Write short, factual alt text first. Do not add persuasion language.
- Include key objects, action, context, and outcome only.
- Flag decorative images as decorative with concise, purpose-linked alt only if required by your publish pipeline.
- Run an accessibility sanity check against nearby page heading and CTA intent.
Stop condition
Stop and request a content owner review if alt text changes change meaning, mention products not present, or omit functional content like price and status badges.
Route Limits and Operating Rules
- Do not assume a model output reflects brand compliance. Human review is required before shipping.
- Do not keep prompts so long that no clear priority remains. Four to eight priority constraints are usually enough.
- Do not mix multiple use cases in one draft prompt, such as social + legal + product packshot, unless you split into one parent intent and nested variants.
- Do not use this hub as an evidence source for factual claims, licensing, or policy interpretation.
- Do not use prompt draft history as final alt text, legal copy, or compliance note.
Fundy prompt workflows are for direction building and preparation only. They are not image generation engines, not model evaluators, and not compliance certification tools.
Handoff and related tool chain
Use these handoff points when the process reaches a stop condition, misses visual QA, or requires manual intervention.
- AI Image Prompt Builder - Keep prompt components modular and versioned before export.
- Product Photo Prompt Studio - Use a dedicated structure for product details and merchandising reality checks.
- Photoshop - Use for final compositing, retouch, and hard quality fixes when generated output is close but not publishable.
- Downloads - Export final prompt references, notes, and review logs in a stable local format.
- Image Tools - Validate final sizes, formats, and optimization after human sign-off.
If external model constraints block the required result, freeze the current prompt version and file it under the project review thread so the next step can be assigned to a human editor or art lead.
Route examples, by outcome target
- Need mood variants fast: start with Structure, keep 3 style branches, then rank by emotional clarity and brand fit.
- Need strict brand reuse: start with Brand Consistent route and reuse the same guardrails across all related prompts.
- Need catalog-ready output: start with Product Photo route and require material and angle checks before exporting variants.
- Need social thumbnail: start with readability checks before style checks.
- Need publish copy: generate image first, then create alt text from actual output.
Common mistakes to avoid
- Writing a long generic prompt before deciding route and success criteria.
- Changing one prompt in too many places at once, which hides the impact of each revision.
- Confusing style consistency with compliance consistency.
- Skipping the handoff because the first model output looked "close enough." Usually it is not finished.
- Relying on prompt text alone for accessibility and legal readiness.
If any item above appears in a project audit, pause generation and re-run this hub workflow from route selection.