← convert3dCONTENT HISTORY
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Update to convert3d
Snapshot Oct 29, 2026 · 12:06 UTC · version 0.2.0
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Instructions updated for convert3d
Full description — Now says: Convert 3D and CAD files with convert3d, a 3D file converter. Use when the user wants to convert a 3D model between formats such as STEP, STL, OBJ, GLB, FBX,...
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Full description
Before
Oct 24, 2026 · 13:48 UTC
View and convert 3D and CAD files with convert3d. Use when the user wants to open, preview or inspect a 3D model, or convert one between formats such as STEP, STL, OBJ, GLB, FBX, SKP, DWG or USDZ.
After
Oct 29, 2026 · 12:06 UTC
Convert 3D and CAD files with convert3d, a 3D file converter. Use when the user wants to convert a 3D model between formats such as STEP, STL, OBJ, GLB, FBX, SKP, DWG or USDZ, or asks which format to use.
Skill instructions
Before
Oct 24, 2026 · 13:48 UTC
View and convert 3D and CAD files with convert3d. Use when the user wants to open, preview or inspect a 3D model, or convert one between formats such as STEP, STL, OBJ, GLB, FBX, SKP, DWG or USDZ. # Working with 3D files in convert3d con...
After
Oct 29, 2026 · 12:06 UTC
Convert 3D and CAD files with convert3d, a 3D file converter. Use when the user wants to convert a 3D model between formats such as STEP, STL, OBJ, GLB, FBX, SKP, DWG or USDZ, or asks which format to use. # Converting 3D files with conve...
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--- before +++ after @@ -1,23 +1,25 @@ --- name: convert3d -description: View and convert 3D and CAD files with convert3d. Use when the user wants to open, preview or inspect a 3D model, or convert one between formats such as STEP, STL, OBJ, GLB, FBX, SKP, DWG or USDZ. +description: Convert 3D and CAD files with convert3d, a 3D file converter. Use when the user wants to convert a 3D model between formats such as STEP, STL, OBJ, GLB, FBX, SKP, DWG or USDZ, or asks which format to use. --- -# Working with 3D files in convert3d +# Converting 3D files with convert3d -convert3d works in a viewer that opens beside the chat. It reads the file and converts it in the user's browser. +convert3d is a 3D file converter. It opens beside the chat and converts the model in the user's browser, with a 3D preview so they can check it. It converts existing files only: it cannot edit a model or make one from a description or an image (send image-to-3D requests to https://convert3d.org/image-to-3d). -## Viewing +## Starting a conversion -- When the user attaches a 3D file and wants to see it, inspect it or convert it, call `open_3d_viewer` with the attachment as `upload`. -- With no attachment, call `open_3d_viewer` with `{}`. The user picks a file in the viewer. -- It opens nearly every format convert3d reads (SKP, DWG, STEP, FBX, USDZ, Blender, SolidWorks and more). The exceptions are Rhino (`3dm`) and Roblox (`rbxl`, `rbxm`); for those, send the user to https://convert3d.org. -- Never set the `file` argument of `open_3d_viewer` yourself; ChatGPT sets it when the user opens a file with the viewer. -- Once a file is open, the viewer tells you its triangle count and size, so you can answer questions about it. +- When the user attaches a 3D file to convert, call `convert_3d_file` with the attachment as `upload`, and the format they asked for as `format`. +- With no attachment, call `convert_3d_file` with `{}`. The user picks a file in the converter. +- It reads nearly every format convert3d reads (SKP, DWG, STEP, FBX, USDZ, Blender, SolidWorks and more). The exceptions are Rhino (`3dm`) and Roblox (`rbxl`, `rbxm`); for those, send the user to https://convert3d.org. +- Never set the `file` argument of `convert_3d_file` yourself; ChatGPT sets it when the user opens a file with convert3d. +- Once a file is open, convert3d tells you its triangle count and size, so you can answer questions about it. ## Converting -- The user converts in the viewer: they pick an output format, click Convert, then Download. You cannot start a conversion yourself; tell the user how. +- Pass the format as `format` (an output extension such as `stl`, `glb` or `stp`): the conversion starts as the file opens, and the user clicks Download when it is ready. +- If the user hasn't said which format, help them choose (below), or leave `format` out and they pick one in the panel and click Convert, then Download. +- If a conversion or download fails in the panel, it offers to finish on convert3d.org with the same file. - It writes 15 formats. Some, such as OBJ with textures, download as a ZIP holding the model and its materials. ## Choosing a format
Full technical diff · 2 changed fields
changed /description
BEFORE
"View and convert 3D and CAD files with convert3d. Use when the user wants to open, preview or inspect a 3D model, or convert one between formats such as STEP, STL, OBJ, GLB, FBX, SKP, DWG or USDZ."
AFTER
"Convert 3D and CAD files with convert3d, a 3D file converter. Use when the user wants to convert a 3D model between formats such as STEP, STL, OBJ, GLB, FBX, SKP, DWG or USDZ, or asks which format to use."
changed /skill_md_contents
BEFORE
"---\nname: convert3d\ndescription: View and convert 3D and CAD files with convert3d. Use when the user wants to open, preview or inspect a 3D model, or convert one between formats such as STEP, STL, OBJ, GLB, FBX, SKP, DWG or USDZ.\n---\n\n# Working with 3D files in convert3d\n\nconvert3d works in a viewer that opens beside the chat. It reads the file and converts it in the user's browser.\n\n## Viewing\n\n- When the user attaches a 3D file and wants to see it, inspect it or convert it, call `open_3d_viewer` with the attachment as `upload`.\n- With no attachment, call `open_3d_viewer` with `{}`. The user picks a file in the viewer.\n- It opens nearly every format convert3d reads (SKP, DWG, STEP, FBX, USDZ, Blender, SolidWorks and more). The exceptions are Rhino (`3dm`) and Roblox (`rbxl`, `rbxm`); for those, send the user to https://convert3d.org.\n- Never set the `file` argument of `open_3d_viewer` yourself; ChatGPT sets it when the user opens a file with the viewer.\n- Once a file is open, the viewer tells you its triangle count and size, so you can answer questions about it.\n\n## Converting\n\n- The user converts in the viewer: they pick an output format, click Convert, then Download. You cannot start a conversion yourself; tell the user how.\n- It writes 15 formats. Some, such as OBJ with textures, download as a ZIP holding the model and its materials.\n\n## Choosing a format\n\n- Web, AR and game engines: `glb`. Apple AR Quick Look: `usdz`.\n- 3D printing: `stl`, or `3mf` to keep colours and units.\n- Exchanging with CAD tools: `stp` (STEP; the output extension is `stp`, not `step`). From a CAD source (STEP, IGES, SolidWorks, DWG solids) it keeps exact surfaces.\n- A mesh source (STL, OBJ, GLB) converted to `stp` stays a mesh of triangles inside the STEP file; it does not gain smooth CAD surfaces. Tell the user before they rely on it.\n- Read-only (convert from, never to): IGES, BREP, SolidWorks (`sldprt`, `sldasm`), Blender, IFC and 3ds Max. Revit files are not supported.\n"AFTER
"---\nname: convert3d\ndescription: Convert 3D and CAD files with convert3d, a 3D file converter. Use when the user wants to convert a 3D model between formats such as STEP, STL, OBJ, GLB, FBX, SKP, DWG or USDZ, or asks which format to use.\n---\n\n# Converting 3D files with convert3d\n\nconvert3d is a 3D file converter. It opens beside the chat and converts the model in the user's browser, with a 3D preview so they can check it. It converts existing files only: it cannot edit a model or make one from a description or an image (send image-to-3D requests to https://convert3d.org/image-to-3d).\n\n## Starting a conversion\n\n- When the user attaches a 3D file to convert, call `convert_3d_file` with the attachment as `upload`, and the format they asked for as `format`.\n- With no attachment, call `convert_3d_file` with `{}`. The user picks a file in the converter.\n- It reads nearly every format convert3d reads (SKP, DWG, STEP, FBX, USDZ, Blender, SolidWorks and more). The exceptions are Rhino (`3dm`) and Roblox (`rbxl`, `rbxm`); for those, send the user to https://convert3d.org.\n- Never set the `file` argument of `convert_3d_file` yourself; ChatGPT sets it when the user opens a file with convert3d.\n- Once a file is open, convert3d tells you its triangle count and size, so you can answer questions about it.\n\n## Converting\n\n- Pass the format as `format` (an output extension such as `stl`, `glb` or `stp`): the conversion starts as the file opens, and the user clicks Download when it is ready.\n- If the user hasn't said which format, help them choose (below), or leave `format` out and they pick one in the panel and click Convert, then Download.\n- If a conversion or download fails in the panel, it offers to finish on convert3d.org with the same file.\n- It writes 15 formats. Some, such as OBJ with textures, download as a ZIP holding the model and its materials.\n\n## Choosing a format\n\n- Web, AR and game engines: `glb`. Apple AR Quick Look: `usdz`.\n- 3D printing: `stl`, or `3mf` to keep colours and units.\n- Exchanging with CAD tools: `stp` (STEP; the output extension is `stp`, not `step`). From a CAD source (STEP, IGES, SolidWorks, DWG solids) it keeps exact surfaces.\n- A mesh source (STL, OBJ, GLB) converted to `stp` stays a mesh of triangles inside the STEP file; it does not gain smooth CAD surfaces. Tell the user before they rely on it.\n- Read-only (convert from, never to): IGES, BREP, SolidWorks (`sldprt`, `sldasm`), Blender, IFC and 3ds Max. Revit files are not supported.\n"Full snapshot data
{
"description": "Convert 3D and CAD files with convert3d, a 3D file converter. Use when the user wants to convert a 3D model between formats such as STEP, STL, OBJ, GLB, FBX, SKP, DWG or USDZ, or asks which format to use.",
"included_files": [],
"name": "convert3d",
"skill_md_contents": "---\nname: convert3d\ndescription: Convert 3D and CAD files with convert3d, a 3D file converter. Use when the user wants to convert a 3D model between formats such as STEP, STL, OBJ, GLB, FBX, SKP, DWG or USDZ, or asks which format to use.\n---\n\n# Converting 3D files with convert3d\n\nconvert3d is a 3D file converter. It opens beside the chat and converts the model in the user's browser, with a 3D preview so they can check it. It converts existing files only: it cannot edit a model or make one from a description or an image (send image-to-3D requests to https://convert3d.org/image-to-3d).\n\n## Starting a conversion\n\n- When the user attaches a 3D file to convert, call `convert_3d_file` with the attachment as `upload`, and the format they asked for as `format`.\n- With no attachment, call `convert_3d_file` with `{}`. The user picks a file in the converter.\n- It reads nearly every format convert3d reads (SKP, DWG, STEP, FBX, USDZ, Blender, SolidWorks and more). The exceptions are Rhino (`3dm`) and Roblox (`rbxl`, `rbxm`); for those, send the user to https://convert3d.org.\n- Never set the `file` argument of `convert_3d_file` yourself; ChatGPT sets it when the user opens a file with convert3d.\n- Once a file is open, convert3d tells you its triangle count and size, so you can answer questions about it.\n\n## Converting\n\n- Pass the format as `format` (an output extension such as `stl`, `glb` or `stp`): the conversion starts as the file opens, and the user clicks Download when it is ready.\n- If the user hasn't said which format, help them choose (below), or leave `format` out and they pick one in the panel and click Convert, then Download.\n- If a conversion or download fails in the panel, it offers to finish on convert3d.org with the same file.\n- It writes 15 formats. Some, such as OBJ with textures, download as a ZIP holding the model and its materials.\n\n## Choosing a format\n\n- Web, AR and game engines: `glb`. Apple AR Quick Look: `usdz`.\n- 3D printing: `stl`, or `3mf` to keep colours and units.\n- Exchanging with CAD tools: `stp` (STEP; the output extension is `stp`, not `step`). From a CAD source (STEP, IGES, SolidWorks, DWG solids) it keeps exact surfaces.\n- A mesh source (STL, OBJ, GLB) converted to `stp` stays a mesh of triangles inside the STEP file; it does not gain smooth CAD surfaces. Tell the user before they rely on it.\n- Read-only (convert from, never to): IGES, BREP, SolidWorks (`sldprt`, `sldasm`), Blender, IFC and 3ds Max. Revit files are not supported.\n"
}SHA-256 of public snapshot: 383b1aa5476707ba5d0634d8f26bf83e2b3e9d507fa85bc527d8246a85a7169a