root d86adaf7cc Diagram procedure: forbid workload-driven shape, warn at runtime ...

The Codex session showed why the workload-driven mode is the wrong
default. Codex authored a spec under
``tenancy → regions → compartments → services`` (the documented
"workload-driven" mode), generated two .drawio files, and reported
success. The output was unusable: services rendered as colored
rectangles with text instead of OCI icon stencils, connector text
went into the edge value (forbidden by the connector-label rule),
and the spec validator never ran because it only fires on
``absolute_layout`` blocks.

Diego: "los drawio son horribles, por que sucede eso?".

Three persistent fixes:

1. SKILL.md option 2 now says ``absolute_layout`` is REQUIRED for
   step 3, calls out workload-driven explicitly as forbidden, and
   explains *why* (no stencils, no validator).

2. docs/skill/output-formats.md § Diagram modes is rewritten — mode
   1 is ``absolute_layout`` (REQUIRED), mode 2 is workload-driven
   (DEPRECATED, back-compat only). Removes the "two acceptable
   shapes" framing that let Codex pick the wrong one.

3. ``oci_diagram_gen.py`` now prints a loud stderr WARNING when a
   spec takes the workload-driven path, naming the procedure docs.
   Catches any agent that skipped reading SKILL.md before generating.

Codex copy synced via ``make sync-skill``.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-04-25 22:54:03 -03:00

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