kernelCAD

Add a variable-section sweep feature into .kcad source.

add_variable_sweep

Add a workspace/robotics target.

add_workspace_target

Capture an animation/turntable of a model.

capture_animation

Convert a drawing/image into starter .kcad geometry.

drawing_to_cad

Diff two .kcad sources.

diff_scripts

Compare geometry between two model versions/scripts.

diff_geometry

Evaluate .kcad source ({ code } or { file }) → diagnostics + geometry summary. Multi-body assemblies need connectors + mates/joints or mechanism.orphan-part fails (axis+revolute for shafts/hinges/gears; frame+fastened for rigid). Declare partRef.connector before arm.mate; after edits delete stale duplicate/orphaned overlapping bodies. Articulated closed loops (4-bar etc.) are UNSUPPORTED on v0.6.0 — expect assembly.solver.did-not-converge; use an open chain or fastened-only loop (do not invent gear-contact types). Use before open_in_studio.

evaluate_script

Evaluate a signed-distance field helper.

evaluate_sdf

Explain a failed evaluate/build from diagnostics.

why_did_this_fail

Export geometry. `target` selects exporter; pass format + output path and code/file.

export

Fetch a part-library entry by id.

fetch_part

Search the part library.

find_part

Recover feature-ish CAD structure from mesh input.

mesh_to_features

Flatten sheet-metal pattern.

flatten_pattern

Summarize the latest FEA result.

fea_summary

Fetch the latest painted review feedback for a project slug (or signed-in user).

review_paint_peek_latest

Server-side PNG still by slug — NOT for interactive Studio paint. Prefer open_in_studio (previewDelivered already includes PNG). Use only for a different view, view:"all" contact sheet, or slug-only still. CRITICAL: image is from the MODEL camera, not the user camera.

get_latest_render

Return triangle mesh JSON for a project slug — NOT the ChatGPT interactive Studio paint path. For in-chat 3D viewing use open_in_studio (outputTemplate + embed). Prefer open_in_studio.

get_model_mesh

Use this when you need to reopen a saved project or browse what the user has saved — it fetches a kernelCAD Studio project, or lists the signed-in user's saved projects. Pass `slug` (from a /p/<slug> link or a prior listing) to fetch that project's full .kcad source and metadata — then edit and open_in_studio with the same slug so the user's open tab updates live. Private projects require their owner's OAuth connection. OMIT `slug` to list the signed-in user's saved projects (most recently updated first); that listing mode requires the OAuth connection.

get_project

Read immutable release-pinned source for a slug+version from open_in_studio.

get_project_revision

Read model facts. `of` selects mode (assembly|robot|step|shape|mass|features|assemblies|params|bbox|…). Pass code/file as required by that mode.

inspect

Look up kernelCAD API docs by symbol/keyword.

lookup_api

Return the authoring SKILL primer for writing .kcad scripts.

lookup_authoring_skill

Look up cookbook recipes for common CAD patterns.

lookup_cookbook

Look up diagnostics/error code explanations.

lookup_diagnostics

Use this when the user wants to SEE or share the model — it persists the current kernelCAD model and returns a one-click link that opens it in the kernelCAD Studio web app, where the user can view and share it. Pass the full `.kcad` source you have been building as `code`. `code` is OPTIONAL: if you just called `evaluate_script` you can omit it and this reuses that last evaluated source automatically (no need to re-send the whole script). Pass `code` explicitly to override, or whenever you have not evaluated this exact source yet. The result includes a `slug` — pass that `slug` on every subsequent call to UPDATE the same project in place: the user's open Studio tab re-renders live, so they can watch the model evolve as you iterate. Omit `slug` only for a new, separate model (each omission creates a new project and link). Trigger phrases: "open it in Studio", "let me see it", "show me the model"; also call it after you finish a build, and after each meaningful revision while iterating.

open_in_studio

Project a curve onto a face/plane into .kcad source.

project_curve

Query model/script facts (features, params, bindings).

query

Remove a feature from .kcad source by id.

remove_feature

Render deterministic PNG views from code/file for visual self-check (no Studio required). Prefer views:["iso"] while iterating.

render_preview

Attempt automatic repair of broken .kcad source.

repair_script

Resolve authoring assumptions/defaults for a prompt or script.

resolve_assumptions

Review CAD source for issues (style, manufacturability, structure). Pass code/file.

review_cad

Run a multi-attempt design/review loop over code/file attempts.

design_loop

Run a lightweight FEA/load check on the model.

run_fea

Set a script parameter default (number or expression string).

set_param

Set the scene return/camera framing hint.

set_scene_return

Solve assembly mates and report status.

solve_mates

Solve sketch constraints and return updated geometry.

solve_sketch

Compact bounds/triangle summary of a project mesh by slug (or code). Fast geometry peek.

mesh_summary