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docs(settings): track E shipped — CLAUDE.md sections 18-20, README, changelog with the live COM smoke record

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CLAUDE.md gains items 18-20 (styles, page setup & templates, environment),
the grown drawing_settings facade on item 11, lean 55 / 52 and
TOOL_PACKS=all|core,pid,settings, and three conventions: layer states are
ours (ACADMCP_LAYERSTATES XRECORD, mode "xrecord"), page-setup evidence is
the PDF's own /MediaBox, nothing interprets coordinates in UCS.

README token table re-measured on this tree with benchmarks/token_suite.py
(ratio/v1 estimates): full 199 tools / 59,315 tokens, core,settings 190 /
55,593, core 168 / 48,825, lean 55 / 16,360, search 2 / 356; corpus
re-derived from discovery.aliases: 186 AutoCAD command names, 933 synonym
phrases, 204 tools. Styles & standards row, page setup & templates row,
final environment wording, and "Known limitations of the settings track".

CHANGELOG Unreleased: the track E intro, Added (styles, page setup &
templates, environment, drawing_settings growth, benchmark evidence),
Fixed (the Track A hardening list), Changed (three groups, packs, measured
idle cost, release snapshot 204 · 8 · 5 · 3284). Spec status: implemented.

Where the plan's text and the tree disagreed, the tree wins:
mleaderstyle_create is implemented on both engines through the
ACAD_MLEADERSTYLE dictionary and no `mleaderstyle` capability key exists
(spec §4, capability maps), so the docs say so instead of calling it
ezdxf-only; the Task 7 fix (tolerant ACADMCP_PID payloads, crossings
tested against the arc) joins the hardening list the plan left it out of.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd
This commit is contained in:
Umut CAN
2026-09-22 13:38:14 +03:00
co-authored by Claude Opus 5
parent 18c7c69da6
commit 39e6e2f9e4
4 changed files with 132 additions and 28 deletions
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README.md
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@@ -33,15 +33,16 @@ Live through COM on Windows, or headless through ezdxf anywhere — one typed co
## Why this exists
**A big MCP server is expensive to be connected to.** The full catalog costs a client **44,930 tokens** before it has asked for anything. Discovery mode replaces it with two tools and costs **356**.
**A big MCP server is expensive to be connected to.** The full catalog costs a client **59,315 tokens** before it has asked for anything. Discovery mode replaces it with two tools and costs **356**.
**A drafter searches for `FILLET`, not `entity_fillet`.** Those command names appeared in no tool name or description — `df = 0` against a stock index, not badly ranked but *absent*. The fix was data: an authored corpus of **162 AutoCAD command names and 731 synonym phrases** covering all 166 tools. A test refuses to let a tool exist without one.
**A drafter searches for `FILLET`, not `entity_fillet`.** Those command names appeared in no tool name or description — `df = 0` against a stock index, not badly ranked but *absent*. The fix was data: an authored corpus of **186 AutoCAD command names and 933 synonym phrases** covering all 204 tools. A test refuses to let a tool exist without one.
| Advertised surface | Tools seen | Idle cost |
|---|---:|---:|
| `TOOL_PROFILE=full` (default) | 161 | 44,930 tokens |
| `TOOL_PACKS=core` (full profile) | 152 | 41,420 tokens |
| `TOOL_PROFILE=lean` | 50 | 14,007 tokens |
| `TOOL_PROFILE=full` (default) | 199 | 59,315 tokens |
| `TOOL_PACKS=core,settings` (full profile) | 190 | 55,593 tokens |
| `TOOL_PACKS=core` (full profile) | 168 | 48,825 tokens |
| `TOOL_PROFILE=lean` | 55 | 16,360 tokens |
| `DISCOVERY_MODE=search` | 2 | **356 tokens** |
> [!NOTE]
@@ -101,11 +102,12 @@ Claude Desktop, Cursor, or any stdio MCP host. For HTTP: `autocad-mcp --transpor
| Annotation | ISO 129 toleranced dimensions, ISO 286 fits (`fit="H7"`), TABLE, MLEADER, GD&T frames and datums (ISO 1101) |
| Engineering generators | involute gears (front + section A-A), DIN 6885 keyed bores, ISO A3 title block |
| P&ID | catalogue blocks with ports and tags (ISO 10628-2 / ISA-5.1), port-to-port lines with ISA-5.1 classes and line numbers, `pid_graph` reads any P&ID back with confidence, instrument index / line list / equipment list, `pid_from_spec` one-call sheets |
| Discovery | `search_tools` ranked over an AutoCAD command and synonym corpus — `FILLET`, `BPOLY`, `QSELECT`, `WBLOCK`, `OVERKILL`, `CHSPACE` each rank **#1** of the 161-tool advertised catalog |
| Styles & standards | ISO-25 / ANSI dimension styles, ISOCP / ROMANS text styles, ISO / ANSI leader styles from authored presets; `drawing_apply_standard("iso")` sets all of it plus units and the `mech` layers in one call; `changed` reports only what moved |
| Discovery | `search_tools` ranked over an AutoCAD command and synonym corpus — `FILLET`, `BPOLY`, `QSELECT`, `WBLOCK`, `OVERKILL`, `CHSPACE` each rank **#1** of the 199-tool advertised catalog |
| Batching | `cad_batch` runs a step list in one round trip; `fields=` projects 11 result-heavy tools |
| Paper space | tab lifecycle, viewports, `entity_change_space` (CHSPACE), `page_setup_apply` (ISO 216 / ANSI Y14.1 paper, ctb, scale, device — on both engines), `batch_plot` with every sheet size read back from its PDF's `/MediaBox`, `drawing_export_pdf(layout=…)` |
| Templates | five bundled templates built by the server's own tools and pinned reproducible (`iso_a3_mech`, `iso_a1_arch`, `iso_a3_pid`, `ansi_b_mech`, `ansi_d_arch`) — `drawing_new(template="iso_a3_mech")`, `drawing_template_list`, `drawing_template_save` (.dwt on live AutoCAD, `dwt_write` refused headlessly) |
| Environment | `document_list/activate/close` — several drawings open at once on both engines; portable layer states (`ACADMCP_LAYERSTATES` XRECORDs — in the file, not in AutoCAD's Layer States Manager); named views; UCS stored and made current *(tool coordinates stay WCS)*; live only: launch/attach, a preference whitelist (`OPTIONS`), and operator prompts — pick a point, select on screen, a command-line message — where ESC is `cancelled`, not an error |
| Page setup & templates | ISO 216 / ANSI Y14.1 sheets, ctb catalog, `batch_plot` verified by the PDF's own `/MediaBox`, five bundled templates built by the server's own tools and pinned reproducible (`drawing_new(template="iso_a3_mech")`, `iso_a1_arch`, `iso_a3_pid`, `ansi_b_mech`, `ansi_d_arch`), save any drawing as a template (`.dwt` on live AutoCAD, `dwt_write` refused headlessly) |
| Environment | several open documents headlessly, portable layer states (`ACADMCP_LAYERSTATES` XRECORDs — in the file, not in AutoCAD's Layer States Manager), named views, UCS *(tool coordinates stay WCS)*, a system-variable catalog with ranges, document properties, and on a live seat: launch/attach, preferences, an operator prompt / pick / select — where ESC is `cancelled`, not an error |
| Selection | window vs crossing stated back to the caller; a polygon tested against its own shape, not its bounding box |
| Boundaries | `boundary_trace` (BOUNDARY/BPOLY) chains loose edges into one closed polyline, arcs kept as bulges *(headless)* |
| Measurement | `analysis_measure_entity` measures what is *in* the drawing, by handle |
@@ -171,7 +173,7 @@ An earlier matrix scored this server 10/10, which carried no information: every
| Task | Verified against |
|---|---|
| `tool_discovery` | six AutoCAD command names, each ranking #1 |
| `token_budget` | 44,930 → 356 tokens, against a ceiling fixed in advance |
| `token_budget` | 59,315 → 356 tokens, against a ceiling fixed in advance |
| `hatch_islands` | 300 filled with the island, 400 ignoring it |
| `selection_filter` | window 1, crossing 2, bounding box 3, polygon 1 |
| `measure_from_handle` | 139.2699 against the 100.0 a vertex shoelace gives |
@@ -206,6 +208,14 @@ A page that only lists strengths is a page that has not been measured.
**Same-file only, DXF headlessly.** Off-page connectors link within one drawing; links across files are not resolved. The headless engine reads DXF; a DWG P&ID is read through the live backend. No DEXPI/Proteus export and no ISA-5.2 binary-logic symbols in this release, recorded in the spec so nobody re-derives the cut.
### Known limitations of the settings track
**Layer states are ours.** `layer_state_save` writes a portable snapshot into an `ACADMCP_LAYERSTATES` XRECORD. It survives save/reopen on both engines and travels with the DWG/DXF; it is **not** an AutoCAD `LAYERSTATE` and does not appear in the Layer States Manager. `system_capabilities` reports `layer_states` as `mode: "xrecord"` for that reason.
**Six of the 22 environment tools need a live seat.** Preferences, launching, the operator prompts, and the five summary fields of document properties are refused headlessly with `preferences` / `dwgprops` / `live_application` / `interactive_prompt` — a refusal, not a stub. A `.dwt` template is the same case (`dwt_write`): a `.dwt` is a DWG container, so headlessly the template is saved as DXF. `mleaderstyle_create` is *not* such a case — ActiveX has no MLeaderStyle collection, but the `ACAD_MLEADERSTYLE` dictionary holds full `IAcadMLeaderStyle` objects, so both engines create leader styles.
**A headless dimension does not re-render.** `dimstyle_modify` reports `dimensions_using_style` and `rerender_required: true` on the ezdxf engine; the DIMENSION keeps its rendered block until it is redrawn. AutoCAD regenerates on the next regen.
## Configuration
Nothing loads a `.env` file — export these, or set them in your MCP client's `env` block.
@@ -217,7 +227,7 @@ Nothing loads a `.env` file — export these, or set them in your MCP client's `
|---|---|---|
| `AUTOCAD_MCP_BACKEND` | `auto` | `auto`, `com`, or `ezdxf` |
| `CAD_PROGID` | `AutoCAD.Application` | COM ProgID the live backend attaches to |
| `TOOL_PROFILE` | `full` | `lean` (50 curated tools) or `full` |
| `TOOL_PROFILE` | `full` | `lean` (55 curated tools, 52 with `TOOL_PACKS=core`) or `full` |
| `TOOL_PACKS` | `all` | Vertical packs to advertise: `core,pid,settings` (`core` always on) |
| `DISCOVERY_MODE` | `off` | `search` replaces the catalog with `search_tools` + `call_tool` |
| `ENABLE_3D` | `false` | Expose the opt-in `solid_*` tools (COM) |