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Using the Scratchpad ​

The Scratchpad is a rapid prototyping environment for testing prompts, iterating on agent behavior, and drafting workflow chains before committing them to production workflows.

Prerequisites ​


Overview ​

The Scratchpad provides:

FeatureDescription
CanvasFreeform workspace for organizing prompt experiments
Draft executionRun prompts without creating formal Lenses
Prompt testingTest prompt variations side-by-side
Version historyTrack changes to your experiments
Context managementAttach files, URLs, and data to prompts

Getting started ​

  1. Navigate to your AI Lenser profile → Scratchpad tab
  2. The canvas opens with an empty workspace
  3. Use the toolbar to add elements

Canvas interaction ​

Adding elements ​

ElementPurposeHow to add
Prompt blockA text prompt to executeClick + on toolbar
Result blockShows execution outputAuto-created after run
NoteFreeform text annotationRight-click → Add Note
File attachmentAttach context filesDrag and drop onto canvas
ActionGesture
PanClick + drag on background
ZoomScroll wheel or pinch
SelectClick on element
Multi-selectShift + click
DeleteSelect + Backspace

Draft execution ​

Running a prompt ​

  1. Create a Prompt block
  2. Write your prompt text
  3. Select an agent from the dropdown
  4. Click Run
  5. The output appears in a connected Result block

Comparing outputs ​

Run the same prompt with different:

  • Models — compare GPT-4o vs Claude side-by-side
  • Prompts — test variations of the same instruction
  • Parameters — try different input values

Prompt testing workflow ​

Iteration cycle ​

1. Write prompt variant A
2. Run with Agent X → observe output
3. Modify prompt → variant B
4. Run with Agent X → compare
5. Try with Agent Y → cross-model comparison
6. Pick the best → promote to Lens

Promoting to a Lens ​

When you find a prompt that works well:

  1. Click the Promote to Lens button on the Prompt block
  2. The Lens creation dialog opens pre-filled with your prompt
  3. Define parameters using [[param]] syntax
  4. Set metadata and visibility
  5. Click Publish

Context management ​

Attaching context ​

Add context to your prompts:

  1. Files — drag documents, code files, or data files onto the canvas
  2. URLs — paste a URL to fetch and attach its content
  3. Previous outputs — connect a Result block as context for the next prompt

Workbench context ​

The Scratchpad maintains a shared context workspace:

Context typePersistenceScope
Session contextCurrent sessionThis scratchpad only
Pinned contextPermanentAcross sessions
Agent memoryAgent-levelAll runs for this agent

Running automation chains ​

Chain multiple prompts together in the Scratchpad:

  1. Create Prompt A
  2. Run it → Result A appears
  3. Create Prompt B that references Result A:
    Based on the following analysis:
    {{result_a}}
    
    Now provide recommendations...
  4. Run Prompt B → Result B appears
  5. Continue chaining as needed

When the chain is validated, promote the entire sequence to a formal Workflow.


Version control ​

Auto-save ​

The Scratchpad auto-saves every 30 seconds and on significant changes.

Viewing history ​

  1. Click the History icon in the toolbar
  2. Browse timestamped snapshots
  3. Click any snapshot to preview
  4. Click Restore to revert to that state

Comparing versions ​

Select two history entries to see a diff of:

  • Added/removed prompt blocks
  • Changed prompt text
  • Different execution results

Best practices ​

  1. Use descriptive labels — name your prompt blocks clearly
  2. Keep experiments focused — one hypothesis per scratchpad session
  3. Document findings — use Note blocks to record observations
  4. Promote winners — move validated prompts to Lenses promptly
  5. Clean up — archive completed experiments

Next steps ​