"Can the Gemini API enable a website to open the Gemini site, with a text prompt pre-filled by that website?

Gemini API
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I’m building a website that collects and stores prompts that have been tested within Gemini, saving them into a database. The site then presents these prompts to users, enabling them to copy them for their own use. I wanted to add a functionality where clicking a button would open Gemini with the corresponding prompt text pre-filled into the search text box.

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Gemini Model Configuration for Consistent Output
Temperature = 0.0
Disables randomness, making the output deterministic for the same prompt.

Top-p = 1.0
Ensures the full probability distribution is considered; no truncation of token selection.

Top-k = 1
Restricts the model to only the most likely token at each generation step, aiding consistency.

Max output tokens = As needed (e.g., 256, 512)
Controls the maximum length of the generated output. Set high enough to capture the complete response without cutting off.

Stop sequences = [Optional]
Use when you want the output to terminate after a specific string. Helps prevent runaway or hallucinated responses.

Prompt Design:
State the format, tone, and constraints clearly so the model understands exactly what is expected. If a specific output pattern is needed, include one or two examples in the prompt. Make sure the instructions are clear and precise to avoid variations in the output.

Prompt Consistency Validation
Even with temperature = 0.0, some variability may still occur due to underlying infrastructure or model updates. To ensure consistent behavior over time:

  1. Log the prompt and its response hash: This enables quick detection of output drift or unexpected changes.
  2. Store the full generation configuration with every prompt: Including temperature, top_p, top_k, model version, etc., to ensure full traceability.
  3. Revalidate prompt behavior periodically: Especially after Gemini model version updates or API changes, rerun stored prompts to confirm response consistency.

For Implement automation for prompt prefill testing
Use scripting or tools to auto-inject prompts into the UI/API and validate outputs programmatically.