feat(chart): add y-axis minimum interval

[mattrothenberg]

Summary

• add an opt-in yAxisMinInterval prop to TimeseriesChart
• forward it to ECharts as minInterval
• preserve the existing unconstrained default for every current consumer
• add focused tests for both the opt-in and default behavior
• document discrete count axes with an executable request-count example

Validation

• pnpm vp fmt packages/kumo/src/components/chart/TimeseriesChart.tsx packages/kumo/src/components/chart/TimeseriesChart.test.tsx .changeset/silly-integers-relax.md

• pnpm --filter @cloudflare/kumo exec vp test run src/components/chart/TimeseriesChart.test.tsx

• pnpm --filter @cloudflare/kumo lint

• pnpm --filter @cloudflare/kumo typecheck

• pnpm --filter @cloudflare/kumo-docs-astro codegen:demos

• pnpm --filter @cloudflare/kumo-docs-astro lint

• pnpm --filter @cloudflare/kumo-docs-astro typecheck

• pnpm changeset status

• Reviews

• bonk has reviewed the change

• automated review not possible because: this is a small public API addition requiring maintainer API-design review.

• Tests

• Tests included/updated

• Automated tests not possible - manual testing has been completed as follows:

• Additional testing not necessary because:

[cloudflare-workers-and-pages]

🚀 Deploying Preview to Cloudflare 🚀

Preview URL: https://feat-timeseries-y-axis-min-interval-kumo-docs.design-engineering.workers.dev (commit f18daf6)

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[ask-bonk]

LGTM!

Review notes

• Confirming PR #797 and inspecting its changed chart implementation, tests, package conventions, and prior reviews before assessing the API behavior.
• PR metadata matches the requested target and head SHA; there are no existing reviews to duplicate. The local checkout does not expose origin/main, so I am retrieving the commit diff directly and checking the chart wrapper and ECharts option typing before running the focused test.
• The implementation exposes an optional numeric prop, preserves omission from the ECharts options by default, forwards 0 as well as positive values, and includes the prop in memo invalidation. The focused tests cover both configured and default option shapes; I am running them and validating the patch against its parent commit.
• Patch validation completed: the commit changes only the three declared files and git diff --check reports no whitespace errors. The focused test could not run because pnpm is unavailable in this action environment; I am checking the PR’s recorded checks and dependency metadata as a substitute for local execution.
• Recorded PR checks show format and changeset validation passing; build, type-oriented analysis, and package checks remain pending. No actionable correctness, API compatibility, accessibility, or test-coverage regressions were found in the reviewed diff.

github run

[mattrothenberg]

/bonk review and approve please

[ask-bonk]

LGTM!

Review notes

• Confirmed the requested target is PR feat(chart): add y-axis minimum interval #797 and inspected its current metadata, diff, prior reviews, and inline comments.
• Read the active review instructions plus the full TimeseriesChart implementation, test suite, and chart wrapper context.
• Verified the optional prop is forwarded to ECharts, omitted by default, supports 0, and participates in option memoization; tests cover default and configured behavior.
• git diff --check passed with a clean working tree.
• Focused tests, lint, typecheck, and local format verification could not run because pnpm is unavailable. GitHub format and changeset checks are passing; remaining checks are pending.

github run

[pkg-pr-new]

npm i https://pkg.pr.new/@cloudflare/kumo@797

commit: f18daf6

[github-actions]

📐 Bundle Size

Consumer fixtures bundled against packages/kumo/dist (peers external, minified ESM).

Fixture	Raw	Gzip	Brotli
Button (root)	174.6 KB	49.9 KB	43.1 KB
Button (components/button)	174.5 KB	49.9 KB	43.0 KB
Button + Dialog + Select (root)	299.5 KB	85.8 KB	71.8 KB
Button + Dialog + Select (component subpaths)	299.5 KB	85.9 KB	71.8 KB
Chart (root)	218.7 KB	63.4 KB	54.7 KB
Chart (components/chart)	218.6 KB	63.3 KB	54.7 KB
Badge (components/badge)	44.7 KB	11.7 KB	10.0 KB
Flow (components/flow)	208.9 KB	58.3 KB	50.5 KB
Button (primitives/button)	12.2 KB	4.4 KB	3.9 KB
Primitives barrel	635.8 KB	176.9 KB	139.3 KB
Code highlighting (code)	2.08 MB	467.9 KB	349.2 KB

npm tarball: 535 files, 1.47 MB packed, 6.84 MB unpacked.

⚠️ 22 flagged files in tarball (tests / raw scripts)

• dist/blocks-source/resource-list/resource-list.test.tsx
• scripts/component-registry/cache.ts
• scripts/component-registry/discovery.ts
• scripts/component-registry/example-cleanup.ts
• scripts/component-registry/index.test.ts
• scripts/component-registry/index.ts
• scripts/component-registry/markdown-generator.ts
• scripts/component-registry/metadata.ts
• scripts/component-registry/props-filter.ts
• scripts/component-registry/schema-generator.ts
• scripts/component-registry/sub-components.ts
• scripts/component-registry/types.ts
• scripts/component-registry/utils.ts
• scripts/component-registry/variant-parser.ts
• scripts/css-build.ts
• scripts/generate-primitives.ts
• scripts/theme-generator/config.ts
• scripts/theme-generator/generate-css.test.ts
• scripts/theme-generator/generate-css.ts
• scripts/theme-generator/index.ts
• scripts/theme-generator/migrate.ts
• scripts/theme-generator/types.ts

Report-only: no size thresholds are enforced yet.

Commit: f18daf6e

[github-actions]

Visual Regression Report — 29 changed, 16 unchanged

29 screenshot(s) with visual changes:

Button / Basic

431 px (0.49%) changed

Before	After	Diff

Button / Variant: Secondary

567 px (0.64%) changed

Before	After	Diff

Button / Variant: Ghost

175 px (0.2%) changed

Before	After	Diff

Button / Variant: Destructive

1,518 px (1.71%) changed

Before	After	Diff

Button / With Icon

256 px (0.29%) changed

Before	After	Diff

Button / Loading State

841 px (0.95%) changed

Before	After	Diff

Button / Disabled State

117 px (0.13%) changed

Before	After	Diff

Button / Link as Button

820 px (0.93%) changed

Before	After	Diff

Button / Link with Tooltip

748 px (0.84%) changed

Before	After	Diff

Button / Disabled Link

763 px (0.86%) changed

Before	After	Diff

Dialog / Dialog Basic

404 px (0.46%) changed

Before	After	Diff

Dialog / Dialog Alert

1,625 px (1.83%) changed

Before	After	Diff

Dialog / Dialog Confirmation

1,735 px (1.96%) changed

Before	After	Diff

Dialog / Custom Max Width

954 px (1.08%) changed

Before	After	Diff

Dialog / Dialog With Select

383 px (0.43%) changed

Before	After	Diff

Dialog / Dialog With Combobox

500 px (0.56%) changed

Before	After	Diff

Dialog / Dialog With Dropdown

482 px (0.54%) changed

Before	After	Diff

Dialog (Open)

0 px (0%) changed

Before	After	Diff

Select / Select Sizes

3,034 px (1.87%) changed

Before	After	Diff

Select / Select Placement

4,084 px (2.82%) changed

Before	After	Diff

Select / Select Dynamic Placement

3,296 px (3.17%) changed

Before	After	Diff

Select / Select Without Label

664 px (0.75%) changed

Before	After	Diff

Select / Select Placeholder

237 px (0.27%) changed

Before	After	Diff

Select / Select Loading

3,191 px (1.81%) changed

Before	After	Diff

Select / Select Multiple

1,265 px (1.43%) changed

Before	After	Diff

Select / Select Complex

181 px (0.17%) changed

Before	After	Diff

Select / Select Grouped With Disabled

1,457 px (1.65%) changed

Before	After	Diff

Select / Select Long List

1,967 px (1.89%) changed

Before	After	Diff

Select (Open)

0 px (0%) changed

Before	After	Diff

16 screenshot(s) unchanged

• Button / Variant: Primary
• Button / Variant: Outline
• Button / Variant: Secondary Destructive
• Button / Sizes
• Button / Icon Only
• Button / Title
• Dialog / Dialog With Actions
• Dialog / Dialog Sizes
• Select / Select Basic
• Select / Select With Description
• Select / Select With Error
• Select / Select With Tooltip
• Select / Select Custom Rendering
• Select / Select Disabled Options
• Select / Select Disabled Items
• Select / Select Grouped

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Generated by Kumo Visual Regression