Prompt workbench
Edit. Fill. Copy. Then test in your AI tool.
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Use {{variable_name}} for reusable inputs. Names start with a letter; letters, numbers, and underscores only. Inserted values are never expanded again.
Avoid credentials and sensitive personal data. Local storage is not encrypted.
This site doesn't run a model. Paste the prompt into your AI tool, then review the answer against the checks below.
Keep the evidence, not just the prompt.
Capture a version before running it in your AI tool. Then paste its answer here and judge the checks yourself. Everything stays in this browser; nothing runs automatically.
No tests yet. Fill the prompt above, capture it, and write the expected behavior before you run it. You can keep up to 20 records per prompt.
Describe the case
The captured instructions and inputs won't change when you edit the workbench. “Next revision” reuses this case's expectations with the current editor's prompt and inputs, but clears the answer and judgments.
Inspect captured prompt & inputs
Instructions & variable inputs
Record what actually happened
Don't paste secrets or private records. Answers and backups are not encrypted.
Counts reflect your manual judgments, not a model score or a reliability estimate.
Judge each check with evidence
Starter checks refer to the sample. Adapt them for your own input. Leave a check unreviewed until you've examined the answer.
Compare two records
Compare the same case and model where possible. A better answer on one run doesn't prove a prompt is generally better.
Keep your work
Current work autosaves on this device. Export a backup before clearing browser data.
Named drafts and “Export current” include this editor and its test notebook. Other named drafts are not included in an export. V1 draft files can still be imported.