dayuan.jiang 98f2a4fda6 feat(diagram): named styles the model defines once and uses by name ...

The model may now write <mxStyle name="step" value="..."/> before its cells
and refer to the name inside a cell's style, the way draw.io resolves its
own named styles. style-classes.ts expands the names after validation (so
repaired cells get them too) and adds draw.io's defaults html=1 and
whiteSpace=wrap where they belong, so the prompts can tell the model never
to write them. Wired into display_diagram, append_diagram, create_new_diagram,
add_page, edit_diagram (defaults only) and the streaming preview.

Prompts (system prompt, tool description, MCP drawing guide) teach the
notation with a shared example, drop the draw.io defaults from every
example and tell the model how labels, line breaks and reserved names work.

Measured on the five start-screen examples, same model and prompt, old vs
new prompt: gpt-6-luna 19% fewer output tokens, Opus 5.5 19% fewer; flow
and architecture diagrams 15% to 46%, creative drawings about equal.

2026-10-10 16:28:42 +09:00

..

route.ts

feat(diagram): named styles the model defines once and uses by name

2026-10-10 16:28:42 +09:00

xml_guide.md

refactor: simplify LLM XML format to output bare mxCells only (#254)

2025-12-14 14:04:44 +09:00