Release notes

• The tagline is set from the central brand data, the supplied artwork stays unchanged.

Pull-Request #120

• Attachments M1–M9, doors and closures T1–T8 and gap and flush Q1–Q6, every number checked at its source; the knowledge base has 132 rules.

Pull-Request #118

• Contrast meeting WCAG AA in both themes, compression for stylesheets and scripts, smaller picture variant for the case study.
• Handbook with the website's colours and fonts, still readable offline.

Pull-Request #116

• New tool for release data (material, coating, thickness standard, general tolerance, tolerancing principle, datum system, weld symbols), coating by installed location and bonded joints – every check with its rule and evidence level.
• The car body sheet metal assistant uses it for the release data; the local model check has an eighth task.

Pull-Request #114

• Experience at several European manufacturers of premium cars and commercial vehicles and with engineering service providers.

Pull-Request #112

• Maturity levels say exactly what the handbook says; the case study separates what the AI assistant did from what CadPilot did; the security page lists everything that can reach the AI service.
• Release notes without pull-request numbers in the text, clearer title block, provider line, pilot terms, English legal texts linked.

Pull-Request #110

• New pages: how it works, capabilities by benefit, solutions, rule packs, case study sheet metal bracket, security, pilot program, licensing, company, roadmap, documentation, release notes.
• One menu for every page, consistent calls to action, structured data without prices or ratings, handbook with skip link and focus ring.

Pull-Request #108

• Tool, test, Python and rule figures from one generated file; tests prevent typed or contradicting figures.
• Fixed: 86 instead of 117 tools and “25 own” in the handbook, the Python range, and the code reviews are described as reviews by a second AI model.

Pull-Request #106

• Bonding S1–S8, corrosion protection U1–U9 and release data Z1–Z9, every number checked at its source; the knowledge base has 109 rules.
• The car body sheet metal assistant also proposes the coating by installed location and the release data.

Pull-Request #102

• Identical points, points on one line or a zero direction are refused before CATIA – no blocking dialog.
• Export and screenshot warn when the file content does not match the extension; new tool for the bill of materials as CSV.

Pull-Request #100

• New planner for tolerance chains: closing dimension, worst case, statistical, largest contributor and assessment against limits.

Pull-Request #96

• Nine rules on the locating and reference system (3-2-1, N-2-1, hole and slot, tolerance chain), each with a source; the knowledge base has 83 rules.
• New planner without CATIA for the locating scheme; it found a misaligned slot in the first practice case.

Pull-Request #93

• Threat model with twelve threats and the countermeasure in the code for each.
• Software bill of materials (CycloneDX), SHA256 checksums and an IT package PDF with every release.

Pull-Request #91

• Quality report: required properties, part number pattern, unnamed features, up-to-date status and empty bodies per file, with measured run time.

Pull-Request #89

• New tool for release, service pack and reachable CATIA entry points.
• Acceptance test extended by four steps; compatibility table generated from recordings; design for choosing edges and faces.

Pull-Request #87

• Checkpoints: undo back to a named state, then compare feature tree, volume and centre of gravity.
• The effect check names new features and the shift of the centre of gravity.
• Workflows in the server with an expectation per step and automatic rollback – experimental until the live test confirms them.

Pull-Request #85

• Company rule packs for the sheet metal check: limits, switched-off or stricter rules and own rules with source and evidence.
• New tools to list the packs and to explain a rule; safe mode now also checks the rule files.

Pull-Request #83

• Three new tools: check the set-up, session state, support bundle – all without CATIA and even while a CATIA call hangs.
• Configuration file (CATIA_MCP_CONFIG) for all switches and a JSON log for log collectors.

Pull-Request #81

• Slots with length, width and angle: distances to other features, the outline and the bend runout.

Pull-Request #78

• Features at least 3 mm from where a bend radius runs out; beads and cups stretched at most 25 % instead of a plain depth limit, also for tilted seat faces.
• E-coat drain holes only where the part touches other parts or traps liquid, at least 3 mm; flank angles as information only.
• The bracket of the first practice case now passes every check; the knowledge base has 74 rules.

Pull-Request #76

• Working rules (units, working copy, measuring, unreliable tools) go to every MCP client, no longer only to Copilot.
• Every result names the tool's maturity, a hint for the next step and the duration; tools are marked as reading or changing.
• Tool groups and profiles: the profile “blech” costs ≈ 6,700 instead of ≈ 20,600 tokens – important for local models.

Pull-Request #74

• CATIA is only started on explicit request (catia_connect with launch or the CATIA_MCP_LAUNCH switch).
• When CATIA rejects a call because a dialog is open or an update is running, exactly that call is repeated for up to 30 s; then CadPilot reports COM_BUSY and the session stays usable.
• New error classes COM_BUSY and SESSION_LOST with the COM error code, without CATIA text; after a lost session the journal of the old session is locked.

Pull-Request #72

• Seam in a wet area without sealing: violated; hem without seam sealer: risk; seam sealer without nozzle access: violated.
• E-coat, vent and cavity wax holes need a closure (plug, pad or open on purpose); the number of hole sizes with plugs is reported.

Pull-Request #69

• Sealing D1–D8 with numbers checked at their source, mainly from a Fraunhofer paper on hem bonding in the body shop.
• The car body sheet metal assistant now plans the sealing of every overlap and how holes are closed later.

Pull-Request #67

• Bend radius against the data sheet r/t; without it “undetermined” instead of a wrong “ok” from steel rules.
• Flanged holes in high-strength steel and aluminium–steel joints reported as a risk with concrete hints.

Pull-Request #65

• High-strength steels H1–H6: bending, springback, sheared edges, liquid metal embrittlement in spot welding, press-hardened steel, strength is not stiffness.
• Aluminium sheet A1–A7: alloys and paint-bake hardening, three times the springback, twice the thermal expansion, joining, contact corrosion, pretreatment for the e-coat.

Pull-Request #63

• New checks BL-EINPRESS-DICKE, BL-EINPRESS-RAND and BL-EINPRESS-HAERTE after rules G1, G2 and G4 of the knowledge base.
• The values are in the rule set with their evidence level; a company standard can replace them.

Pull-Request #61

• Press-in, weld and blind rivet nuts, flow drill screws, edge distances of bolt holes, settling and paint in the joint.
• The number of rules on the home page is now counted from the knowledge base.

Pull-Request #59

• Knowledge base with an evidence column for all 38 rules; the rule set carries the same levels, a test keeps both equal.
• The rule check names the evidence of its limit for every check – and “unknown” when a company file does not say.

Pull-Request #57

• Questions: heading “The confirmed proposal (V1–V11)” instead of single labels on V1–V4.

Pull-Request #55

• First real case on the home page, with a picture of the concept model.
• New tool catia_check_sheet_metal_rules: checks bend radii, embossing and bead depths, distances to the edge and neighbours, e-coat drainage and crash beads of a sheet metal proposal, without CATIA.
• Acceptance test C18 builds the bracket's skeleton in CATIA and measures it; the job text for it is ready.

Pull-Request #53

• Questions stand 4: axis system, collar hole Ø30 inside and bend radii 3 × t taken over; the proposal is re-dimensioned.
• Corrected: the sketch is an oblique view – both collar holes are at the same height.

Pull-Request #51

• Script for Ollama, LM Studio, vLLM and llama.cpp: measures tool choice, rejected calls, result, answer, rounds and time.
• Warns when the model sees only a truncated tool list and refuses endpoints outside the own network. Not yet measured with a real model.

Pull-Request #49

• Switch CATIA_MCP_SESSION_REPORT: report in the working folder or in a folder of its own; recorded after the data filter, i.e. exactly what left.
• The chain is checked with one command; write errors are reported in the answer and the overview is marked incomplete.
• Not included is what you type into the chat yourself. Not yet tried in CATIA.

Pull-Request #47

• New menu item Confidentiality on every page.

Pull-Request #45

• Switch CATIA_MCP_DATA_FILTER: built-in filter or a filter file with the customer’s numbering scheme, properties such as “Konstrukteur” (designer) and a list of names.
• Replaced everywhere, also in instance and document names, paths and error messages; with the filter on, pictures never leave.
• Limits documented openly: what has been learned or matches the numbering scheme is masked; descriptions and dimensions stay readable. Not yet tried in CATIA.

Pull-Request #43

• New page confidentiality and AI: confidentiality, TISAX, GDPR and third countries, CLOUD Act, export control, AI Act and copyright; Volkswagen’s public rules for third parties with clause numbers.
• Operating modes from a local model to a US service, the case of a predecessor model, outsourcing to best-cost countries and 13 questions for the customer.

Pull-Request #41

• Knowledge base with 38 rules and sources: vehicle coordinates, load paths, crash beads, forming and flanged holes, spot welding and mixed materials, e-coat.
• New prompt template “car body sheet metal assistant”: guides through installed position, loads, crash, manufacturing, joining and e-coat and calls the matching tools.
• Test job stand 3: questions reduced from 15 to 3, with a concrete design proposal for the sketch instead.

Pull-Request #39

• With CATIA_MCP_SCREENSHOT_IMAGE=1 the JPEG comes back as a picture; BMP, TIFF and very large images are not attached, with a note.
• The guide for the IT approval names the switch; without it only the file path is returned, as before.

Pull-Request #37

• Vendor-neutral: besides GitHub Copilot any MCP-capable client works; the guide for the IT approval describes operation without a US cloud.
• New: “Request a pilot” and the section “Who it is for / design partners wanted” on the home page.
• Corrected: the statement on Windows tests of the set-up (no longer true since 0.8.0), the number of prompt templates, the note on German-only pages and the open points in the status.
• A fixed order for publishing new versions.

Pull-Request #35

• 100 % branch coverage in the server code and the helper scripts, with behaviour tests and mutation checks.
• Test count and branch coverage on the project page come from the local check's measurement – it showed outdated values before.
• New page questions on the test job: 15 questions for its author with reasons and example answers.

Pull-Request #32

• Acceptance test with six new checks: hole pattern with a real pocket, clearance, plane at 15° (degrees or radians?), fillet, spot welds, sheet metal interface.
• Windows check scripts\check_windows.cmd and a protocol template; live-test guide with a checklist up to item 17.
• Automated checks on GitHub switched off, a local check before every change instead.

Pull-Request #27

• Plan and create spot welds: pitch, edge distance, flange width and shunting checked.
• Planes tilted about an axis, fillets between two named surfaces and a check whether CATIA's sheet metal interface is reachable.
• Load cases as equivalent loads per attachment and a new Copilot prompt “Blech-Skelett”.
• Feasibility analysis of the test job with open questions.

Pull-Request #23

• Variant comparison without CATIA: 2 to 20 hole patterns against one shared rule set, with reserves, best values and the variants no other beats on both reserves.
• New Copilot prompt “Bohrbild-Varianten”: compare, show the table, ask – only then create.

Pull-Request #17

• Plan a hole pattern without CATIA: bolt circle or grid, clearance hole to ISO 273, smallest web and edge distance against a versioned rule set.
• Check clearance: distance per element pair against the required value – ok, tight, violated or undetermined; distance 0 means contact or interference.
• Create a hole pattern: only on a working copy in safe mode, violated rules are refused, the volume change is measured and can be undone.
• Engineering draft with measurement definitions and reference cases, approved by the developer.

Pull-Request #15

• The structured result format (v2) with effect check is the default; the earlier text format stays available with CATIA_MCP_RESULT_FORMAT=v1.
• A call blocked by safe mode never reaches CATIA, in the structured format too.

Pull-Request #11

• Unknown parameters are rejected: if Copilot wrote center_x instead of cx, a circle used to end up at the origin without any message.
• Handbook “Operation and help”: updating to a new version, going back to the previous one, help after problems in CATIA, reporting problems, uninstalling. Every version is available as a ZIP file.
• Privacy: the environment report for queries no longer contains the name of the open document.
• Weekly check of the base project for changes; compatibility list; tests now also on Python 3.11.
• Internal restructuring: documents, sketch and pad go through defined interfaces – provably with the same CATIA calls as before.

Pull-Request #8

• Every state has a version number; the server reports it to Copilot when connecting.
• Every version gets a tag in the repository and an entry in the changelog.
• Every change goes through the Windows checks as a pull request (tests, types, coverage, vulnerabilities) before it reaches the main line.

Pull-Request #3

• New: catia_check_update shows which feature fails to update – with CATIA’s error text.
• New: apply and read a material from the catalogue, with density for the mass.
• New: write part number, revision, nomenclature and user properties.
• New: list faces with area, centre and normal, to find e.g. the top face reliably.
• New: create parameters and formulas. CATIA expects metres and radians here – the tool converts millimetres and degrees.
• The new tools are checked against the Automation reference but have not yet run in CATIA; the handbook therefore lists them as “limited”.
• The adopted code now also runs under strict type and style checks. Found and fixed on the way: a shell that silently stayed closed for an unknown face; a part reported as “unknown”; missing volume without a warning.
• New behaviour tests (coverage now 94 %) found seven more defects, all fixed: moving rotated the wrong way; views had Y instead of Z up; export and screenshot reported success for an unchanged old file; features rejected by CATIA stayed in the tree; and more.

• The 1.x line only receives maintenance; new features and fixes land in 2.x first.
• The server now validates tool input itself, with the same messages as before.
• Tested with the protocol version VS Code uses today and with the new one; confirmation in real Copilot is part of the pending live test.

• Former addresses permanently redirect to www.cadpilot.org; old links keep working.
• English handbook at /en/handbook/, language switch with flags on every page.

• Project website, handbook and live-test guide carry the new name.
• Tool names and set-up are unchanged; existing Copilot configurations keep working.

• Unit error: CATIA returns volume in m³ and area in m². They were read as mm³ and mm², so masses would have been a factor of 10⁹ too small.
• Calls that do not exist in CATIA: bounding box and inertia matrix on the measurable, CreateArc for arcs. Arcs now use CreateCircle; the bounding box honestly reports “not supported”.
• Silently wrong behaviour fixed: threaded holes came out smooth, “part in assembly” created an empty sub-assembly, the chamfer used the wrong signature.
• Safety: undo identifies documents unambiguously, drive-less paths can no longer bypass the protection of originals, a hanging CATIA call no longer prevents shutdown.
• The acceptance test never starts CATIA itself and reports test documents it could not close.
• Only what cannot be checked without CATIA remains open; it is part of the acceptance test for the first live run.

• The MCP SDK needs at least version 1.19 for structured results. Any version from 1.0 was allowed; the lower bound is fixed and a dedicated CI run tests exactly 1.19.
• GitHub Actions on version 7, pinned by commit hash; ruff 0.16.9; pywin32 312.
• The Windows CI now tests Python 3.10 to 3.14.
• Dependabot reports new versions weekly; pip-audit checks the runtime and test environments and finds no known vulnerabilities.

• Guide with a checklist and expected values for the first test.
• Automated acceptance test: checks volume, centre of gravity, constraints, symmetric pad, undo, working copies and export, and writes a report.
• Environment report including the authorised CATIA licences.
• Recording of all CATIA calls so that real answers later serve as offline tests.

• All CATIA calls run on a dedicated thread with a time limit. If CATIA shows a dialog, the server no longer hangs and further commands are held back.
• Journal and undo: parameter changes and new features of a session can be listed and undone.
• New: product properties, formulas, parameter details, bill of materials, and summary and export for whole folders.
• A simulated COM server tests the real transport path in the Windows CI without CATIA.

• Uniform results with an error code and a safe next step.
• Volume before and after every material feature: a pocket into thin air is reported as an error.
• Abstraction layer between the tools and the CATIA interface.
• Rules and prompt templates for GitHub Copilot, type checking and a packaging check of the licence notices.

• Double-clicking setup_user.cmd sets everything up in the user profile.
• Connection to GitHub Copilot in VS Code and Visual Studio.
• The CI runs the full set-up on Windows for every change.

• Sketch constraints used wrong CATIA constants: “radius” created a distance constraint.
• Values that CATIA does not deliver no longer appear as zeros.
• Ambiguous names cause an error instead of a measurement on the first match.
• Handbook for design engineers with all tools, maturity levels and examples from vehicle development.

• Inventory of all tools and tests that detect any change to their interface.
• Safe mode: saving and export only into working copies, never over existing files, no paths or values in the log.
• Windows CI with offline tests and code checks.

• Full version history kept, licence and origin notices preserved.
• Starting point: three offline checks, no test against real CATIA within the project.