PostNitro

Generate Video Post and Wait for Output

postnitro_generate_video_and_wait

Convenience tool: AI-generates a video post (postType VIDEO), polls until completion, and returns the final output. Rendering a video takes longer than a carousel — typically 15-45 seconds when responseType is 'MP4', and longer for designs with animations or GIFs (which use the enhanced renderer).

The content is AI-generated from your aiGeneration prompt — you do NOT provide slides. (To supply your own scene content instead, use postnitro_import_video_and_wait.)

Output: 'DESIGN' (default) creates the design without rendering; 'MP4' renders the video file and requires videoSettings.

templateId, brandId, presetId, and responseType are optional if you've saved defaults via postnitro_set_defaults.

Input Schema

TableJSON Schema

Name	Required	Description
`brandId`	No	Brand ID (optional if saved via postnitro_set_defaults)
`presetId`	No	AI preset ID (optional if saved via postnitro_set_defaults)
`templateId`	No	Template ID (optional if saved via postnitro_set_defaults)
`requestorId`	No	Optional custom tracking ID
`aiGeneration`	Yes
`responseType`	No	Output format for a video. 'DESIGN' (default) creates the design without rendering — fastest, and enough for scheduling or finishing in the editor. 'MP4' renders the video file and requires videoSettings. A video cannot be rendered as PDF or PNG.
`videoSettings`	No	Video render settings. REQUIRED when responseType is 'MP4' (a render needs a duration); optional for 'DESIGN'. When this video is later scheduled as a reel, the API reuses these settings automatically.
`generateImages`	No	Optional AI image generation — include this object to enable it, omit it for no images. When included, `context` is required and you (the agent) must author it from the post. Best-effort: the post still COMPLETES if images fail or aren't permitted (free plan / exhausted AI-image quota); check the GENERATE_IMAGES step via postnitro_check_status. Requires a paid plan, consumes the org's AI-image quota (separate from post credits), and adds latency.

Output Schema

TableJSON Schema

Name	Required	Description
`data`	No	Public URL of the rendered file — a single URL for PDF and MP4, an array of them for PNG (one per page). Omitted for responseType 'DESIGN'.
`name`	No	Design name
`status`	Yes	Job status, e.g. 'COMPLETED'
`success`	Yes	True when the post finished processing
`designId`	No	Design ID — the value to pass as designId when scheduling. Absent only when it could not be resolved from the output.
`mimeType`	No	MIME type of the rendered file. Omitted for responseType 'DESIGN' (no file is rendered).
`warnings`	No	Non-fatal issues worth surfacing to the user (e.g. AI image generation did not complete)
`editorUrl`	Yes	Deep link that opens the design in the PostNitro editor; null when it cannot be resolved
`outputType`	No	Rendered output type: 'pdf', 'png', or 'mp4'. Omitted for responseType 'DESIGN'.
`aspectRatio`	No	Design aspect ratio, e.g. '4:5'
`creditsUsed`	No	Credits consumed by this post
`embedPostId`	Yes	The generation-job ID
`responseType`	Yes	Output format of the post: 'PDF', 'PNG', 'DESIGN', or 'MP4' (video posts)
`usedDefaults`	Yes	The values actually applied — explicit arguments, saved defaults, or an auto-selected sole candidate

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

First observedSep 7, 2026

TDQS

A4.9/5.0

Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The description discloses behavioral details beyond annotations: it waits and polls, has typical latency, may still complete if image generation fails, consumes AI-image quota, and requires specific conditions for MP4 rendering. This aligns with the annotations (non-destructive, non-idempotent) without contradiction.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured, front-loaded with the core purpose, and each paragraph adds value covering distinct aspects: latency, AI generation vs import, output types, and optional defaults. Despite length, it is not verbose and every sentence serves a purpose.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (nested objects, many optional parameters), the description is thorough. It explains the waiting behavior, output options, image generation fallback, and how to check status via postnitro_check_status. Together with the rich schema, it provides enough context for an agent to use the tool effectively.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema already covers most parameters with descriptions (coverage 88%). The description adds extra clarifications such as 'A video cannot be rendered as PDF or PNG' and the relationship between responseType and videoSettings, which go slightly beyond the schema and aid understanding.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's primary function: AI-generates a video post, polls until completion, and returns the final output. It also distinguishes itself from the import tool, making the purpose unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description explicitly contrasts with postnitro_import_video_and_wait, advising to use this tool for AI-generated content and the import tool for custom slides. It also explains the trade-offs between DESIGN and MP4 response types and mentions optional defaults, giving clear guidance for selecting this tool over alternatives.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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TDQS

A4/5.0

Disambiguation4/5

Most tools are clearly separated by verb and noun (generate_carousel vs generate_image vs generate_video, import_* vs generate_*). The generic convenience names like generate_and_wait and import_and_wait are slightly ambiguous, but their descriptions and the _wait/_schedule suffixes make them distinguishable.

Naming Consistency4/5

All tools share the postnitro_ prefix and snake_case verb-first convention. A few compound names (generate_and_schedule, import_and_wait) break the strict verb_noun pattern, but the convention is otherwise consistent and predictable.

Tool Count2/5

With 35 tools, the surface exceeds the rubric's 25+ 'too many' threshold. Many entries are convenience wrappers (_wait, _and_schedule) around the same core operations and could be consolidated to reduce overload.

Completeness4/5

The domain is well covered: generation, import, output retrieval, scheduling, brands, social accounts, audio, templates, presets, and defaults. Minor gaps remain (no delete_brand, no upload/connect for audio/social accounts), but those are largely external or non-critical.

Resources

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