Claude Skill

instagram-post

Use when the user wants to post or schedule to Instagram through Publora: a single image, a 2-10 image carousel, a Reel or a Story. Requires a Business account and an image or video; text-only posts are rejected by the API. Not for Threads (use threads-post).

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Download publora-skills-skills_instagram-post-63db082.zip · 3 KB
Part of publora/skills — 17 skills

Install

skills CLI npx skills add https://github.com/publora/skills/tree/main/skills/instagram-post
Claude Code claude plugin marketplace add https://llmmart.ai/marketplace.json && claude plugin install publora-skills@llmmart
Git git clone https://github.com/publora/skills.git

The skills CLI installs just this skill, for any of its supported agents. Claude Code installs the whole publora/skills collection as a plugin from our marketplace. Git is the plain clone.

Skill manifest

Instagram Post

Create and schedule Instagram posts using the Publora MCP server. Supports image posts, carousels (2-10 images), Reels, and Stories. Requires an Instagram Business account.

Prerequisites

Plans: Works on the free Starter plan. Current limits and pricing: publora.com/pricing.

Getting Started

  1. Create account at publora.com/register (free)
  2. Convert to Business account in Instagram settings (Personal and Creator accounts are NOT supported by the API)
  3. Connect Instagram via OAuth in Publora Dashboard
  4. Get API key at app.publora.com/dashboard/api
  5. Connect your agent to the MCP server at https://mcp.publora.com, authenticating with Authorization: Bearer sk_YOUR_API_KEY. In Claude Code:
claude mcp add publora --transport http https://mcp.publora.com \
  --header "Authorization: Bearer sk_YOUR_API_KEY"

Claude Desktop, Cursor, Codex, OpenClaw and the claude.ai connector each need a different config file or flow: see client setup for the exact path and snippet.

REST API Fallback

If the MCP server is unavailable or returns errors, use the REST API directly:

Base URL: https://api.publora.com/api/v1

Authentication: Use x-publora-key header (NOT Authorization: Bearer):

# Get your connected platforms
curl -X GET "https://api.publora.com/api/v1/platform-connections" \
  -H "x-publora-key: sk_your_api_key"

# Create a post
curl -X POST "https://api.publora.com/api/v1/create-post" \
  -H "x-publora-key: sk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "platforms": ["instagram-11223344"],
    "content": "Your caption here #hashtag",
    "scheduledTime": "2026-03-25T10:00:00Z"
  }'

Platform ID Format: instagram-{id} where {id} is from /platform-connections response.

Example IDs: instagram-11223344, instagram-55667788

📖 Full API documentation: docs.publora.com

Platform Limits (API vs Native App)

These limits are specific to the Instagram Graph API and differ from native app limits:

Images

Feature API Limit
Formats JPEG, PNG, WebP (WebP is auto-converted). Animated GIF, BMP and TIFF are rejected.
Max file size 8 MB
Carousel images 2-10 (native app allows 20)
Aspect ratios 4:5 (portrait) to 1.91:1 (landscape)

Videos

Feature Reels Stories Carousel Videos
Max duration 15 minutes (only 5-90s eligible for Reels tab) 60 seconds 60 seconds
Min duration 3 seconds 3 seconds 3 seconds
Max file size 300 MB 100 MB 300 MB
Formats MP4, MOV MP4, MOV MP4, MOV

Captions

Feature Limit
Caption length 2,200 characters
Visible before "more" First 125 characters
Hashtags 30 per post (included in caption)

Rate Limits

  • 50 posts per 24 hours (some accounts report 25)

Available Tools

create_post

Create a new Instagram post.

Parameters:

  • platforms: Array with your Instagram connection ID (e.g., ["instagram-11223344"])
  • content: Caption text (up to 2,200 characters)
  • scheduledTime: ISO 8601 UTC datetime. Optional: omit it and the post is created as a draft. Send a future time to schedule. A time five or more minutes in the past is rejected with SCHEDULED_TIME_IN_PAST, so for immediate posting use the current time plus a minute.
  • mediaUrls: up to 10 public https image or video URLs. Publora downloads them server-side and attaches them before validation, so media and scheduling happen in one call. This is the one-shot alternative to the draft then get_upload_url then complete_media flow. Ingestion is rate-limited to 60 URLs per hour.

get_upload_url

Get presigned URL for media uploads.

Parameters:

  • postGroupId: Post ID to attach media to
  • fileName: File name (e.g., "photo.jpg")
  • contentType: Must be image/jpeg for images, video/mp4 for video
  • type: "image" or "video"

complete_media

Finalize a file uploaded through get_upload_url, after the presigned PUT succeeds. Optional, because scheduling also finalizes pending media, but calling it early surfaces format and probe errors before publish. Not needed for media attached with mediaUrls.

Parameters:

  • mediaId: the id returned by get_upload_url

list_connections

List your connected accounts with their platform IDs. Call this first and copy the IDs verbatim; they are never guessable.

list_posts / get_post / update_post / delete_post

Manage scheduled and draft posts. update_post also patches content and platforms on a draft or scheduled post, so fixing a typo or retargeting no longer means delete and recreate. delete_media and prune_media_reference clean up uploaded files.

Video Type Settings (via REST API)

Control how videos are published via platformSettings:

{
  "platformSettings": {
    "instagram": {
      "videoType": "REELS"
    }
  }
}
Setting Values Default Description
videoType "REELS", "STORIES" "REELS" Determines how videos are published

Note: platformSettings is accepted by the MCP create_post and update_post tools as well as over REST. The schema is strict: a mistyped platform or key is rejected with a validation error rather than silently dropped.

Examples

Single Image Post

Post this to Instagram:
"Morning coffee and code. Best way to start the day. #devlife #coding"

[Attach JPEG image]

Formats: JPEG, PNG and WebP all work; WebP is converted before publishing.

Carousel Post

Create an Instagram carousel with these 5 product screenshots.
Caption: "Our app evolution over 6 months. Swipe to see the journey! #buildinpublic"

Note: Requires 2-10 JPEG images. Cannot mix images and videos in carousels.

Reel

Post this video as a Reel:
"60-second tutorial on our new feature. #tutorial #app"

Videos default to Reels. Set videoType: "STORIES" via REST API for Stories.

Story

Post this 30-second clip as a Story (will disappear after 24 hours).

Requires platformSettings.instagram.videoType: "STORIES" via REST API.

Scheduled Post

Schedule this for tomorrow at 10 AM:
"New feature announcement coming soon! Stay tuned."
[Attach JPEG image]

Important Restrictions

  1. Animated GIF, BMP and TIFF are rejected. JPEG, PNG and WebP are accepted, with WebP auto-converted.

  2. Business account required: Personal and Creator accounts cannot post via API. Only Business accounts work.

  3. Media required on every post: Instagram does not support text-only posts. Every post needs at least one image or video.

  4. No mixed media in carousels: A carousel must be either all images OR all videos (via separate posts), not both.

  5. Stories disappear: Stories are ephemeral and disappear after 24 hours.

  6. Reel is the default: Videos are published as Reels by default. To post a Story, use the REST API with videoType: "STORIES".

Best Practices

Content

  1. First 125 chars matter: This is what users see before tapping "more"
  2. Hashtag strategy: Use 5-15 relevant hashtags (max 30)
  3. Image quality: Use high-quality JPEG images for best results
  4. Carousel engagement: Carousels get higher engagement than single images

Timing

  • Best times: 11 AM - 1 PM, 7 PM - 9 PM in target timezone
  • Frequency: 1-2 posts per day for growth
  • Reels boost: Reels get algorithmic preference over static images

Engagement

  • Reply to comments within the first hour
  • Use location tags when relevant
  • Cross-promote from Stories to Feed

Troubleshooting

Error Cause Solution
"Business account required" Using Personal/Creator account Convert to Business account in Instagram settings
"Invalid image format" PNG or other non-JPEG format Convert image to JPEG before uploading
"Media upload failed" File too large or wrong format Check: images < 8 MB JPEG, videos < 300 MB MP4
"Carousel requires 2-10 items" Wrong number of images Ensure 2-10 images for carousel
"Account not connected" OAuth expired Reconnect via Publora dashboard
Rate limit (429) Exceeded 50 posts/day Wait 24 hours
Files (skills)
  • SKILL.md 8.7 KB
    ---
    name: instagram-post
    description: Use when the user wants to post or schedule to Instagram through Publora: a single image, a 2-10 image carousel, a Reel or a Story. Requires a Business account and an image or video; text-only posts are rejected by the API. Not for Threads (use threads-post).
    ---
    
    # Instagram Post
    
    Create and schedule Instagram posts using the Publora MCP server. Supports image posts, carousels (2-10 images), Reels, and Stories. Requires an Instagram Business account.
    
    ## Prerequisites
    
    **Plans:** Works on the free Starter plan. Current limits and pricing: [publora.com/pricing](https://publora.com/pricing).
    
    ### Getting Started
    
    1. **Create account** at [publora.com/register](https://publora.com/register) (free)
    2. **Convert to Business account** in Instagram settings (Personal and Creator accounts are NOT supported by the API)
    3. **Connect Instagram** via OAuth in [Publora Dashboard](https://app.publora.com/dashboard)
    4. **Get API key** at [app.publora.com/dashboard/api](https://app.publora.com/dashboard/api)
    5. **Connect your agent** to the MCP server at `https://mcp.publora.com`, authenticating with `Authorization: Bearer sk_YOUR_API_KEY`. In Claude Code:
    
    ```bash
    claude mcp add publora --transport http https://mcp.publora.com \
      --header "Authorization: Bearer sk_YOUR_API_KEY"
    ```
    
       Claude Desktop, Cursor, Codex, OpenClaw and the claude.ai connector each need a different config file or flow: see [client setup](https://docs.publora.com/mcp/client-setup) for the exact path and snippet.
    
    ### REST API Fallback
    
    If the MCP server is unavailable or returns errors, use the REST API directly:
    
    **Base URL:** `https://api.publora.com/api/v1`
    
    **Authentication:** Use `x-publora-key` header (NOT `Authorization: Bearer`):
    
    ```bash
    # Get your connected platforms
    curl -X GET "https://api.publora.com/api/v1/platform-connections" \
      -H "x-publora-key: sk_your_api_key"
    
    # Create a post
    curl -X POST "https://api.publora.com/api/v1/create-post" \
      -H "x-publora-key: sk_your_api_key" \
      -H "Content-Type: application/json" \
      -d '{
        "platforms": ["instagram-11223344"],
        "content": "Your caption here #hashtag",
        "scheduledTime": "2026-03-25T10:00:00Z"
      }'
    ```
    
    **Platform ID Format:** `instagram-{id}` where `{id}` is from `/platform-connections` response.
    
    Example IDs: `instagram-11223344`, `instagram-55667788`
    
    📖 **Full API documentation:** [docs.publora.com](https://docs.publora.com)
    
    ## Platform Limits (API vs Native App)
    
    These limits are specific to the Instagram Graph API and differ from native app limits:
    
    ### Images
    
    | Feature | API Limit |
    |---------|-----------|
    | **Formats** | JPEG, PNG, WebP (WebP is auto-converted). Animated GIF, BMP and TIFF are rejected. |
    | Max file size | 8 MB |
    | Carousel images | 2-10 (native app allows 20) |
    | Aspect ratios | 4:5 (portrait) to 1.91:1 (landscape) |
    
    ### Videos
    
    | Feature | Reels | Stories | Carousel Videos |
    |---------|-------|---------|-----------------|
    | Max duration | **15 minutes** (only 5-90s eligible for Reels tab) | 60 seconds | 60 seconds |
    | Min duration | 3 seconds | 3 seconds | 3 seconds |
    | Max file size | 300 MB | 100 MB | 300 MB |
    | Formats | MP4, MOV | MP4, MOV | MP4, MOV |
    
    ### Captions
    
    | Feature | Limit |
    |---------|-------|
    | Caption length | 2,200 characters |
    | Visible before "more" | First 125 characters |
    | Hashtags | 30 per post (included in caption) |
    
    ### Rate Limits
    
    - **50 posts per 24 hours** (some accounts report 25)
    
    ## Available Tools
    
    ### create_post
    Create a new Instagram post.
    
    **Parameters:**
    - `platforms`: Array with your Instagram connection ID (e.g., `["instagram-11223344"]`)
    - `content`: Caption text (up to 2,200 characters)
    - `scheduledTime`: ISO 8601 UTC datetime. **Optional**: omit it and the post is created as a draft. Send a future time to schedule. A time five or more minutes in the past is rejected with `SCHEDULED_TIME_IN_PAST`, so for immediate posting use the current time plus a minute.
    - `mediaUrls`: up to 10 public **https** image or video URLs. Publora downloads them server-side and attaches them *before* validation, so media and scheduling happen in one call. This is the one-shot alternative to the draft then `get_upload_url` then `complete_media` flow. Ingestion is rate-limited to 60 URLs per hour.
    
    ### get_upload_url
    Get presigned URL for media uploads.
    
    **Parameters:**
    - `postGroupId`: Post ID to attach media to
    - `fileName`: File name (e.g., "photo.jpg")
    - `contentType`: Must be `image/jpeg` for images, `video/mp4` for video
    - `type`: `"image"` or `"video"`
    
    ### complete_media
    Finalize a file uploaded through `get_upload_url`, after the presigned `PUT` succeeds. Optional, because scheduling also finalizes pending media, but calling it early surfaces format and probe errors before publish. Not needed for media attached with `mediaUrls`.
    
    **Parameters:**
    - `mediaId`: the id returned by `get_upload_url`
    
    ### list_connections
    List your connected accounts with their platform IDs. Call this first and copy the IDs verbatim; they are never guessable.
    
    ### list_posts / get_post / update_post / delete_post
    Manage scheduled and draft posts. `update_post` also patches `content` and `platforms` on a draft or scheduled post, so fixing a typo or retargeting no longer means delete and recreate. `delete_media` and `prune_media_reference` clean up uploaded files.
    
    ## Video Type Settings (via REST API)
    
    Control how videos are published via `platformSettings`:
    
    ```json
    {
      "platformSettings": {
        "instagram": {
          "videoType": "REELS"
        }
      }
    }
    ```
    
    | Setting | Values | Default | Description |
    |---------|--------|---------|-------------|
    | `videoType` | `"REELS"`, `"STORIES"` | `"REELS"` | Determines how videos are published |
    
    Note: `platformSettings` is accepted by the MCP `create_post` and `update_post` tools as well as over REST. The schema is **strict**: a mistyped platform or key is rejected with a validation error rather than silently dropped.
    
    ## Examples
    
    ### Single Image Post
    ```
    Post this to Instagram:
    "Morning coffee and code. Best way to start the day. #devlife #coding"
    
    [Attach JPEG image]
    ```
    **Formats:** JPEG, PNG and WebP all work; WebP is converted before publishing.
    
    ### Carousel Post
    ```
    Create an Instagram carousel with these 5 product screenshots.
    Caption: "Our app evolution over 6 months. Swipe to see the journey! #buildinpublic"
    ```
    Note: Requires 2-10 JPEG images. Cannot mix images and videos in carousels.
    
    ### Reel
    ```
    Post this video as a Reel:
    "60-second tutorial on our new feature. #tutorial #app"
    ```
    Videos default to Reels. Set `videoType: "STORIES"` via REST API for Stories.
    
    ### Story
    ```
    Post this 30-second clip as a Story (will disappear after 24 hours).
    ```
    Requires `platformSettings.instagram.videoType: "STORIES"` via REST API.
    
    ### Scheduled Post
    ```
    Schedule this for tomorrow at 10 AM:
    "New feature announcement coming soon! Stay tuned."
    [Attach JPEG image]
    ```
    
    ## Important Restrictions
    
    1. **Animated GIF, BMP and TIFF are rejected.** JPEG, PNG and WebP are accepted, with WebP auto-converted.
    
    2. **Business account required**: Personal and Creator accounts cannot post via API. Only Business accounts work.
    
    3. **Media required on every post**: Instagram does not support text-only posts. Every post needs at least one image or video.
    
    4. **No mixed media in carousels**: A carousel must be either all images OR all videos (via separate posts), not both.
    
    5. **Stories disappear**: Stories are ephemeral and disappear after 24 hours.
    
    6. **Reel is the default**: Videos are published as Reels by default. To post a Story, use the REST API with `videoType: "STORIES"`.
    
    ## Best Practices
    
    ### Content
    1. **First 125 chars matter**: This is what users see before tapping "more"
    2. **Hashtag strategy**: Use 5-15 relevant hashtags (max 30)
    3. **Image quality**: Use high-quality JPEG images for best results
    4. **Carousel engagement**: Carousels get higher engagement than single images
    
    ### Timing
    - **Best times**: 11 AM - 1 PM, 7 PM - 9 PM in target timezone
    - **Frequency**: 1-2 posts per day for growth
    - **Reels boost**: Reels get algorithmic preference over static images
    
    ### Engagement
    - Reply to comments within the first hour
    - Use location tags when relevant
    - Cross-promote from Stories to Feed
    
    ## Troubleshooting
    
    | Error | Cause | Solution |
    |-------|-------|----------|
    | "Business account required" | Using Personal/Creator account | Convert to Business account in Instagram settings |
    | "Invalid image format" | PNG or other non-JPEG format | Convert image to JPEG before uploading |
    | "Media upload failed" | File too large or wrong format | Check: images < 8 MB JPEG, videos < 300 MB MP4 |
    | "Carousel requires 2-10 items" | Wrong number of images | Ensure 2-10 images for carousel |
    | "Account not connected" | OAuth expired | Reconnect via Publora dashboard |
    | Rate limit (429) | Exceeded 50 posts/day | Wait 24 hours |
    

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