Download an Instagram Reel from a public post URL. Returns the original 9:16 HD MP4 URL and audio track, with no watermark and no re-encoding. Public accounts only — private accounts return HTTP 422.
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | Public Instagram Reel URL |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden. It discloses important behavioral traits: no watermark, no re-encoding, and error handling for private accounts. It does not mention rate limits or authentication needs, but these are less critical for a read-only download tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is two sentences with no wasted words. The action is front-loaded, and every sentence adds value (purpose, output characteristics, access restriction).
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's simplicity (one parameter, no output schema), the description covers the return format and an error condition. It could mention potential size limits or the absence of re-encoding, but overall it is adequate.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description reinforces that the URL must be a public Instagram Reel URL, which is already stated in the input schema description. Schema coverage is 100%, so the description adds minimal new meaning beyond the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses a specific verb 'Download' and resource 'Instagram Reel from a public post URL'. It clearly states the output format (HD MP4 URL and audio track, no watermark, no re-encoding), distinguishing it from other download tools like download_video or download_story.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly states 'Public accounts only — private accounts return HTTP 422', which guides the agent on when not to use it. It does not name alternative tools for private reels, but the sibling list provides options.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.
Most tools have clear distinct purposes; however, engagement_calculator and engagement_health_check have overlapping functionality, both dealing with engagement metrics, which could cause confusion.
Majority of tools follow a verb_noun pattern (e.g., download_photo, search_hashtags), but two tools start with nouns (engagement_calculator, engagement_health_check), breaking the consistency.
16 tools cover a wide range of Instagram-related tasks without being excessive. Each tool serves a specific purpose relevant to the toolkit's domain.
The toolkit covers downloading, engagement analysis, content generation, and hashtag research. Missing features like posting or advanced profile analytics are minor gaps for an analytical toolkit.