The v1.6 roadmap in five tracks: 154 -> 247 registered tools in 28 groups.
Evidence re-measured for the release:
- correctness A/B against v1.5.1: 26/48 -> 48/48, 22 fixed, 0 regressed
(ab-v1.5.1-vs-v1.6.0.json, replacing the -dev report);
- the reference adapter on matrix v7: 21/21 (autocad-mcp-pro.json, which
was the v3 run of 1.5); the published-report test follows it to v7;
- the 100-point rubric re-scored per category, every withheld point named:
93 (the competitor rows are their July snapshots, not re-reviewed);
- the perf lane as medians of five alternating runs, beside a v1.4.0
comparison on one interpreter (perf-v1.4.0-vs-v1.6.0.json).
Two roadmap criteria are not green, and the changelog, the README and the
roadmap say so: criterion 5 is withdrawn (track D, Plant 3D, dropped) and
criterion 7 is not met (creation 1.25x / 1.38x v1.4.0's time, still
1.17x / 1.20x with the timeout off). Carried to 1.7.
README rewritten for 1.6: what is new, the mechanical and architectural
sheets, the rubric and task-matrix charts, the measured limits (including
the four feature tables that ship empty), and the 1.7 roadmap. server.json
describes the 1.6 surface and declares TOOL_PACKS. CLAUDE.md corrects the
ISO 286 letter set and the empty feature tables.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd
The evidence for track H, in the shape tracks A, E, B + G and F used.
- benchmarks/tasks_v7.py: 21 tasks, DEFAULT_MATRIX = "v7"; v6 to v2 stay
addressable. Both new tasks read the synthetic plant pair and nothing
else. takeoff_roundtrip: the P&ID called schematic, every routable run's
layout length equal to the rectilinear MST of its tags, sizes and services
as drawn (a return drawn on the supply layer included), the cable metres
rounded up after the allowance, an unstated power left empty.
understand_foreign: inches over millimetres flagged, the stray entity found
by handle, two plan copies separated, five layers classified. A test breaks
each input and watches its gate fail by name.
- Five correctness checks, every number worked out by hand in its docstring;
the published A/B report is re-run over 48 checks: 26 / 48 -> 48 / 48,
zero regressed.
- scripts/smoke_understand_com.py reads the pair through the live engine -
snapshots, the DWG route, both takeoffs and a diff - and closes every
document it opens; the CHANGELOG records what it returned.
scripts/field_test_takeoff.py runs the takeoffs on a user's own files,
refuses to write inside the repository and prints no quantity by default.
- The README token table is remeasured; check_doc_numbers derives the task
count from the v7 matrix; CLAUDE.md, both READMEs, the CHANGELOG and the
spec status line say what shipped.
One reader defect found on the way: describe.tag_occurrences read a wiring
callout ("Wiring to CP-2") as a place its panel is written, so the scale
check called CP-2 ambiguous and read "Wiring to CP1" as a phantom tag CP1 -
10 tags and 45 pairs (13.3 % within 10 %) where the generator placed 11 and
55 (21.8 %). A callout is no longer a tag occurrence, the rule
network.tag_occurrences already kept; two tests failed before the fix.
The smoke works only in documents it opened from its own temporary folder,
known by full path; it attaches with GetActiveObject only (the backend's
Dispatch fallback would launch AutoCAD), checks in the same COM-thread call
that the active document is its own before each snapshot, the DWG save and
the move, closes its documents with Close(False) and re-activates the
document that was active when it started. No new ActiveX member: Documents,
Item, FullName, ActiveDocument, Activate and Close are the ones the backend
already calls. Measured on AutoCAD 2026 (25.1s): exit 0, model-space types
equal file / live / DWG, export 0.104 s, no document of the run left open.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd
