Closes the gap between what the validator catches and what Diego
flagged on the MySQL HeatWave HA example (2026-04-25 round 4):
- CONTAINER_PADDING_VIOLATION now checks all four edges (top / bottom /
left / right). Previously only bottom — DB Subnet's left/right edges
touching the AD borders went unflagged.
- CONNECTOR_OVER_LABEL now runs at SPEC level (was post-render drawio
only). Catches "Network Load Balancer label sits below the arrows so
the arrows cross it" before either renderer emits anything; covers
the PPTX path too.
Implemented via Liang-Barsky line-rect clipping on every connector
segment vs every free-floating label bbox.
Renderer policies persist for every new diagram (bent connectors,
icon-group preference, mysql aliases). Spec-level rules are now
enforced earlier and on both render paths, so a spec authored against
the procedure will pass before any artifact is produced.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Implements points 3–8 of the post-procedure follow-up.
- Make targets: diagram-lookup, diagram-validate-spec, diagram-spec-audit,
archcenter-descriptions-refresh, archcenter-smoke. Promotes the new
tools out of "remember the CLI" into discoverable build-automation.
- .gitea/workflows/diagram-validators.yaml — runs spec validator across
every absolute_layout spec on push/PR, plus a drawio re-render smoke
test on the canonical example. Hard fail blocks merges.
- archcenter_pattern_lookup --llm-rewrite — opt-in (ANTHROPIC_API_KEY
env var, mirroring DRAWIO_EXE pattern). Rewrites natural-language
queries into canonical OCI terminology before scoring; falls back to
the original query on any error.
- diagram_spec_validator — documents the policy on legacy archcenter
reproductions: LABEL_NEAR_PARENT_EDGE stays a warning so verbatim
reconstructions don't lose pixel-fidelity from cosmetic edits.
- README — documents the asset refresh procedure (downloader +
description fetcher are idempotent, refresh quarterly).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The diagram path now follows a documented standard procedure (lookup
the closest Oracle Architecture Center reference → confirm components
→ author absolute_layout → spec validator → render → visually verify)
and ships persistent guardrails so layout regressions can't recur.
Persistent procedure changes (apply to all users, all sessions):
- tools/diagram_spec_validator.py — geometry checks (CONTAINER_TOO_THIN,
CONTAINER_PADDING_VIOLATION, LABEL_OVERFLOW_PARENT) run BEFORE either
renderer (drawio + PPTX). Catches the subnet-collapse / label-overflow
bugs that the post-render drawio validator missed.
- tools/oci_diagram_gen.py + tools/oci_pptx_diagram_gen.py — call the
spec validator before emitting any output. Adds mysql / mysql_heatwave
type aliases.
- tools/archcenter_pattern_lookup.py — scores against cached page
descriptions (not just the 1-line summary), supports --queries for
multi-fragment composition, and applies synonym expansion via
kb/architecture-center/synonyms.yaml so "LB HA cross AD" matches
"load balancer high availability availability domain".
- kb/architecture-center/synonyms.yaml — canonical synonym table
(load balancer, autonomous database, data guard, …) used by the
lookup scorer.
KB enrichment:
- tools/archcenter_description_fetcher.py + 121 cached _description.md
under kb/diagram/assets/archcenter-refs/<slug>/. Removes the runtime
dependency on docs.oracle.com when authoring specs and feeds the
pattern-lookup scorer.
- 110+ cached .drawio / .svg / .png references for offline reuse,
plus the OCI Toolkit v24.2 import (kb/diagram/assets/oci-toolkit-drawio).
Documentation:
- docs/skill/output-formats.md — new "Standard diagram-generation
procedure (MANDATORY)" + geometry rules + the new validator entry.
- SKILL.md option 2 — references the mandatory procedure.
- README.md — describes the spec validator, archcenter_pattern_lookup
and description fetcher, and updates the KB-health table.
Tooling that backs the procedure (cumulative across recent sessions):
tools/archcenter_case_runner.py, archcenter_batch_driver.py,
archcenter_zip_downloader.py, drawio_visual_validator.py,
drawio_fidelity_eval.py, harvest_drawio_icon.py, import_oci_library.py,
oci_pptx_diagram_gen.py, oci_pptx_render.py, refresh_pptx_icon_index.py.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
