Provides an in-platform preview canvas that renders the animation smoothly and without errors before export.
What was measured
In-Platform Preview
Real-time preview before export.
context, not decisivecapability
Previewing before export helps iterate, but it does not itself measure whether the tool can generate the animation correctly. (3 of 3 judges)
What was given, what came back
Test input: Search engines basics explainer · text
Input — what we sent
The exact prompt
Create an animation video explaining how search engines work.
A vague, linear educational animation prompt asking the tool to explain how search engines work with minimal guidance. Designed to stress inference, scene structuring, pacing, and coherent visual flow from an underspecified request.
Output — unretouched

Replit agent conversation and canvas for the search engine explainer.

Finished indexing slide in the Replit preview canvas.
Replit — Search-Engine-Explainer-Apr-18-15-53-35.mp4
Also checked on this input — same tool, 3 other criteria
Code Generation Quality✓ WorkedProduces runnable React animation code on the first attempt.Export Experience✓ WorkedProvides a direct one-click MP4 export path from the editor.Output Quality✓ WorkedDelivers clean motion graphics with clear sequencing and visual hierarchy, making the explanation immediately understandable.
Provenance
- Observation
- 060c8d11-de6d-40d1-aa1a-82244ca585f7
- Evidence run
- c751a76b-a105-4b3e-9ff3-6c4d6adc9f04
- Study
- Generate Code-based Animations from text inputs
- Research task
- 86b9nnzmy
- Tested at
- Jun 24, 2026
- Source
- first-party
- Evidence state
- verified
- Proof shown
- input + output shown
- Cost / latency
- not captured
- Repeat run
- not captured
- Tester
- not captured
The last three rows are honest blanks, not placeholders — our capture has no field for them yet.
Query this
get_evidence({
tool: "replit"
})MCP · mcp.aidemos.com/api/mcp
Free with attribution.
Same input, same check — 2 other tools
measured on In-Platform Preview
Real inputs and real outputs, no retouching · every cell queryable via API & MCP · aidemos.com