Example brief
Larkfield Software, a Series C devtools platform, raised self-serve activation by linking three onboarding changes - a guided checklist, contextual sample data, and in-product nudges - each to the metric it moved, lifting 30-day activation 27% from 41% to 52% and trial-to-paid 12 points.
Render it
Structured intent — create_slide payload
Copy-paste-ready. Renders deterministically (verbatim, no LLM). Add a theme_id for any of the built-in themes — the layout stays identical.
{
"form": "case_story",
"variant": "proof_chain_case",
"headline": "Why activation rose: each onboarding change traced to a measured lift",
"context": "Self-serve activation - causal proof chain",
"takeaway": "Activation rose because each change had a traceable mechanism, not one big redesign.",
"source_note": "Larkfield product analytics, Q1-Q2 2026 cohort",
"subject": "Larkfield Software",
"brief": "Rather than one redesign, the team made three targeted onboarding changes and tied each to the operational metric it moved.",
"data": {
"client_descriptor": "Series C devtools platform",
"chain": [
{
"label": "Guided first-run checklist",
"detail": "Replaced the empty dashboard with a three-step setup path",
"proof": "+18pp day-1 setup completion",
"emphasis": "primary"
},
{
"label": "Contextual sample project",
"detail": "Seeded realistic data so value is visible before any integration work",
"proof": "2.4x feature trial rate"
},
{
"label": "In-product nudges",
"detail": "Triggered help at the exact drop-off step instead of by email",
"proof": "-34% time-to-first-value"
}
],
"results": [
{
"value": "+27%",
"label": "30-day activation",
"sub": "from 41% to 52%",
"tone": "good"
},
{
"value": "+12pp",
"label": "Trial-to-paid",
"tone": "good"
}
]
}
}cURL (REST)
curl -X POST https://dev-api.slideforge.dev/v1/render/intent \
-H "Authorization: Bearer sf_live_..." \
-H "Content-Type: application/json" \
-d '{"form":"case_story","variant":"proof_chain_case","headline":"Why activation rose: each onboarding change traced to a measured lift","context":"Self-serve activation - causal proof chain","takeaway":"Activation rose because each change had a traceable mechanism, not one big redesign.","source_note":"Larkfield product analytics, Q1-Q2 2026 cohort","subject":"Larkfield Software","brief":"Rather than one redesign, the team made three targeted onboarding changes and tied each to the operational metric it moved.","data":{"client_descriptor":"Series C devtools platform","chain":[{"label":"Guided first-run checklist","detail":"Replaced the empty dashboard with a three-step setup path","proof":"+18pp day-1 setup completion","emphasis":"primary"},{"label":"Contextual sample project","detail":"Seeded realistic data so value is visible before any integration work","proof":"2.4x feature trial rate"},{"label":"In-product nudges","detail":"Triggered help at the exact drop-off step instead of by email","proof":"-34% time-to-first-value"}],"results":[{"value":"+27%","label":"30-day activation","sub":"from 41% to 52%","tone":"good"},{"value":"+12pp","label":"Trial-to-paid","tone":"good"}]}}'Related templates
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Frequently asked questions
How do I render the Proof chain template?
Send a POST to /v1/render/auto with a brief, or call create_slide via MCP with the structured intent shown below. The response includes an editable .pptx, a PDF, and a PNG. $0.05 per slide.
Does an AI write the slide?
No. SlideForge renders deterministically from a structured intent — no LLM draws the slide, so text is never mangled or fabricated. The optional brief path uses a router to pick the pattern, then renders deterministically.
Can I customize the colors and fonts?
Yes. Pass a theme_id to apply a built-in or custom brand theme; the layout stays the same.
Try this template
Render Proof chain deterministically — editable PowerPoint in under a second.