nexus/.planning/phases/44-video-presentations/44-02-SUMMARY.md

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
44-video-presentations	02	content-renderer	remotion video presentations typescript llm sse puter-inference	phase provides 44-video-presentations/44-01 packages/content-renderer workspace package, getBundlePath, renderPresentationComposition, PresentationBundle type, presentation case in content-job-runner stub phase provides 40-job-infrastructure content_jobs table, SSE live events, publishLiveEvent	renderPresentation function — LLM slide JSON generation + Remotion MP4 render + SSE progress events server/src/types/content-renderer.d.ts — ambient module declaration isolating Remotion JSX from server tsc	44-video-presentations/44-03 (UI PresentationPanel consumes PresentationBundle returned by this renderer)	added patterns Ambient module declaration (content-renderer.d.ts) isolates Remotion/React JSX from server tsc context — force-added with git add -f following express.d.ts precedent Dynamic import pattern await import("@paperclipai/content-renderer") at runtime keeps webpack/rspack out of server tsc compilation stripMarkdownFences local helper (same pattern as pdf-renderer and brand-renderer) cleans LLM output before JSON.parse try/catch around resolveBrowserPath — falls back to undefined so Remotion auto-downloads Chromium if needed	created modified server/src/services/renderers/presentation-renderer.ts server/src/types/content-renderer.d.ts	Ambient module declaration in server/src/types/content-renderer.d.ts provides type safety for dynamic import without pulling JSX composition files into server tsc context content-renderer NOT added as workspace dep in server/package.json — symlink in node_modules causes tsc to walk JSX source files even with dynamic import; ambient declaration is sufficient resolveBrowserPath wrapped in try/catch — falls back to undefined so Remotion auto-downloads Chromium if Playwright binary not found videoType 'demo-video' or 'demo' both map to DemoVideo composition — content-renderer uses 'demo' internally, renderer accepts both	Ambient module declaration pattern: server/src/types/*.d.ts for packages whose source includes JSX/webpack contexts (force-add to bypass gitignore)	PRES-01 PRES-02 PRES-03 PRES-04	12min	2026-04-04

Phase 44 Plan 02: Video Presentations — Presentation Renderer Summary

renderPresentation function with LLM pitch-deck/demo-video slide generation (puterChatComplete), Remotion MP4 rendering (concurrency:1 via content-renderer), and SSE content_job.progress events

Performance

• Duration: ~12 min
• Started: 2026-04-04T23:26:00Z
• Completed: 2026-04-04T23:38:00Z
• Tasks: 2
• Files modified: 2

Accomplishments

• Created server/src/services/renderers/presentation-renderer.ts — replaces stub from plan 01 with full implementation: LLM generates 6-10 pitch-deck slides or 4-8 demo-video slides as structured JSON, Remotion renders to MP4 Buffer via dynamic import of content-renderer, SSE progress events published via publishLiveEvent
• Created server/src/types/content-renderer.d.ts — ambient module declaration providing type safety for the dynamic import without pulling React/JSX composition files into server tsc context (no jsx option in server tsconfig)
• Both server and shared packages compile without TypeScript errors

Task Commits

1. Task 1: Create presentation-renderer with LLM slide generation and Remotion render pipeline - 161ff9cf (feat)
2. Task 2: Verify server tsc compilation with presentation renderer wired - 28a8d63d (feat)

Files Created/Modified

• server/src/services/renderers/presentation-renderer.ts — Full renderPresentation implementation: LLM slide JSON → Remotion MP4 → PresentationBundle JSON
• server/src/types/content-renderer.d.ts — Ambient declaration for @paperclipai/content-renderer (force-added, bypasses gitignore)

Decisions Made

• Ambient module declaration instead of workspace dep: adding @paperclipai/content-renderer as a workspace dep caused TypeScript to resolve the package source (package.json exports ./src/index.ts) and walk into JSX files, triggering --jsx is not set errors. The ambient declaration in server/src/types/ provides correct types without the source resolution.
• resolveBrowserPath wrapped in try/catch — if Playwright Chromium is not installed, browserExecutable is undefined and Remotion will auto-download Chromium (acceptable fallback for first-time setup).
• Both "demo-video" and "demo" input values for videoType map to the DemoVideo composition — content-renderer internally uses videoType === "demo" to select the composition.

Deviations from Plan

Auto-fixed Issues

1. [Rule 3 - Blocking] Ambient module declaration to resolve tsc JSX incompatibility

• Found during: Task 2 (TypeScript compilation verification)
• Issue: Adding @paperclipai/content-renderer as workspace dependency caused tsc to resolve the package's source files (package.json maps exports to ./src/index.ts), which includes React JSX compositions. Server tsconfig has no jsx option, resulting in TS6142: Module './PitchDeck' was resolved to PitchDeck.tsx but --jsx is not set errors. This blocked successful compilation.
• Fix: Removed @paperclipai/content-renderer from server/package.json and created server/src/types/content-renderer.d.ts as an ambient module declaration. This provides type safety for the dynamic import without TypeScript resolving the JSX source files. Force-added with git add -f (file would otherwise be excluded by server/src/**/*.d.ts gitignore pattern — same approach used for express.d.ts).
• Files modified: server/src/types/content-renderer.d.ts (created), server/package.json (reverted content-renderer dep)
• Verification: pnpm --filter @paperclipai/server exec -- npx tsc --noEmit exits 0
• Committed in: 28a8d63d (Task 2 commit)

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Total deviations: 1 auto-fixed (1 blocking — tsc JSX incompatibility) Impact on plan: Required for correct TypeScript compilation. The ambient declaration pattern is the correct architectural solution for Remotion isolation. No scope creep.

Issues Encountered

• Parallel agent had already executed plan 44-03 by the time Task 2 was being completed. The content-renderer.d.ts ambient declaration was committed as a new file — it did not conflict with plan 44-03 work (which touched UI files only).

Known Stubs

None — renderPresentation is fully implemented; no stubs remain.

Next Phase Readiness

• renderPresentation is fully wired: LLM → slides JSON → Remotion → MP4 → PresentationBundle
• Plan 44-03 (UI) already executed in parallel — PresentationPanel consumes PresentationBundle via the content-job SSE pattern
• TypeScript compilation passes for server and shared packages

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Phase: 44-video-presentations Completed: 2026-04-04