thierryc/glyphs-mcp/glyphs-curve-repair

Curve Inspector · Inspect & Repair

Use the installed Curve Inspector engine, never recreate its formulas in a script. This skill package ships with the companion; managed-catalog registration is deferred until a release can pin its actual source commit.

Resolve the intended document, glyph, owning layer and foreground/background surface. Select shared on-curve nodes only: both adjoining segments are included automatically. Bind joins once as zero-based (path, node) pairs. Repair analysis is independent of the Reporter's 128-cubic display cap.

Default to native-star and maxDeviationEm=0.001. Stars preserve stored coordinates while changing the effective outline. The same native method uses stars between curves and raindrops between lines and curves, in either direction. supertool-handles supports curve/curve joins only and is the explicit fixed-on-curve alternative; tunniBalance defaults to false and its result must still pass G2 and neighbor checks. Preserve corners and locks.

Use run_repair.py through the existing advertised python_script workflow. The helper imports the installed shared engine and checks its version; a missing companion is an installation gap, not permission to copy an algorithm into the script. Choose operation=analyze or propose for preview-only requests. operation=repair recomputes and applies a guarded proposal under existing repair authorization, then verifies actual native output. Carry expectedFingerprint from a reviewed proposal into application.

Provide joins, allJoins, allLayers, method, maxDeviationEm, tunniBalance and optional region as needed. region is an explicit list of [minimum,maximum] pairs in the font's native axis order. Report the declared region, families, expected/evaluated locations, maximum continuous outline bound, its reported metric, and effective join movement. Fixed-correspondence cubics retain the exact squared-difference integral; native expanded chains report that integral as null. Report generated-segment G1 separately from G2 at the requested source join and from drawing-grid quantization. The 4096-location limit never truncates. A blocked mixed selection must be explained, not silently reduced to an eligible subset.

Use native and recovery notes when executing or explaining a refusal. Use the existing qualified dekink-native workflow for HOI-specific trajectory problems; it is distinct from this G2 operation. Do not claim general conditional-family or export qualification from ordinary master tests. An unsupported family must remain a visible refusal.

V2 owns document identity and script jobs. Respect its saved-baseline rules. Native script restoration reloads the whole saved font and discards later unsaved changes; it is not selective patch rollback. Preview-only authorization does not authorize live edits, Save, installation or restart. Existing repair authorization need not be requested again for the same guarded scope.