Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-06 02:55 UTC

Julien-Marcou / Scrollable-Component

Native viewport with custom scrollbars 🖱️

JavaScript · CSSMIT★ 19 stars⑂ 2 forkssince Jun 2020View on GitHub ↗

#customizable #scrollbar #native #viewport #web-component #custom-element #scroll

Julien-Marcou/Scrollable-Component holds a health index of 51 out of 100, placing it in the Moderate band. It scores highest on Vitality (61/100) and lowest on AI Readiness (27/100). It was last updated 37 days ago. A single contributor accounts for most of its recent work.

overall / 100

Moderate

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met

Excellent80-92Strong across the board; minor gaps

Good65-79Healthy; gaps are limited and manageable

Moderate50-64Acceptable with notable gaps; review recommended

Weak35-49Material weaknesses across several areas

At Risk20-34Significant weaknesses; adoption warrants caution

Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 51 is calibrated to 51 on the published index scale (record calibration 2026-08-02).

Ownership

Julien MarcouPersonal account

36 followers26 public repossince May 2013

This repository is owned by a personal account. A single-owner project carries more continuity risk than an organization-backed one.

Package ecosystems

Registry	Package	Version	Downloads / mo	Versions	Last publish	Tags
npm	scrollable-component	2.0.4	5,291	15	37 days ago	customizable scrollbar custom scroll scrollable native viewport component custom-element web-component

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

61Moderate · 21% of overall

Development activity

45Weak

How it's scored

18/36	Push recency — last push 37 days ago
2.8/36	Commit cadence — 4/52 weeks with commits
14.5/18	Commit volume — 40 commits in the last year
10/10	OpenSSF Scorecard: Maintained — 30 commit(s) and 3 issue activity found in the last 90 days -- score normalized to 10

Inputs used

commits_last_year	40
human_commit_share	1
days_since_last_push	37
active_weeks_last_year	4

Release discipline

84Excellent

How it's scored

27/27	Ships releases — 15 releases published
36/36	Release recency — latest release 37 days ago
12.6/27	Release cadence — a release every ~180.1 days
0/10	OpenSSF Scorecard: Signed-Releases — no data

Inputs used

releases_count	15
latest_release_tag	v2.0.4
releases_from_tags	no
days_since_latest_release	37
mean_days_between_releases	180.1

Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

41Weak · 17% of overall

Popularity & adoption

20At Risk

How it's scored

20.4/60	Stars — 19 stars
0/25	Forks — 2 forks
0/15	Watchers — 2 watchers

Inputs used

forks	2
stars	19
watchers	2
growth_state	unverified
growth_factor_pct	100
growth_unverified_reason	no_history

Community health

50Moderate

How it's scored

22.5/22.5	README
22.5/22.5	License — recognized license (MIT)
0/18	CONTRIBUTING guide
0/13.5	Code of conduct
0/7.2	Issue template
0/6.3	PR template

Inputs used

has_readme	yes
has_license	yes
readme_badges	6
has_contributing	no
has_issue_template	no
has_code_of_conduct	no
readme_badge_services	shields.io
has_pull_request_template	no

Ecosystem adoption (downloads)

62Moderate

How it's scored

49.6/80	Monthly downloads — 5,291 downloads/month across npm
0/20	Registry dependents — not reported by this ecosystem

Inputs used

packages	scrollable-component
dependents	—
ecosystems	npm
total_downloads	—
monthly_downloads	5,291
unverified_packages_excluded	—

Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

55Moderate · 23% of overall

Maintainer resilience (bus factor)

12Critical

How it's scored

9/54	Bus factor — 1 contributor(s) cover half of all commits
0.2/22.5	Commit distribution — top contributor authored 99% of commits
2.7/13.5	Contributor breadth — 2 contributors
0/10	OpenSSF Scorecard: Contributors — project has 0 contributing companies or organizations -- score normalized to 0

Inputs used

bus_factor	1
contributors_sampled	2
top_contributor_share	0.989

Issue & PR responsiveness

71Good

How it's scored

42/42	Issue resolution — 100% of issues closed
20/30	PR acceptance — 2/3 decided PRs merged
0/13	Newcomer PR acceptance — no first-time contributor's PR decided in 30d
0/15	OpenSSF Scorecard: Code-Review — Found 0/30 approved changesets -- score normalized to 0

Inputs used

merged_prs	2
open_issues	0
closed_issues	5
prs_merged_7d	0
prs_decided_7d	0
prs_merged_30d	0
prs_decided_30d	0
issue_closed_ratio	1
closed_unmerged_prs	1
first_time_authors_30d	0
first_time_prs_merged_30d	0
first_time_prs_decided_30d	0

Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.

Ownership & stewardship

55Moderate

How it's scored

10/30	Ownership backing — personal (user) account
0/20	Verified domain — not applicable to user accounts
11.3/25	Owner reach — 36 followers of Julien-Marcou
22.4/25	Track record — 26 public repos, account ~13 yr old

Inputs used

followers	36
owner_type	User
is_verified	—
owner_login	Julien-Marcou
public_repos	26
account_age_days	4,869

Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.

Package maintenance

100Exceptional

How it's scored

25/25	Published & resolvable — 1 package(s) on npm
35/35	Publish recency — latest publish 37 days ago
20/20	Version history — 15 published versions
20/20	Not deprecated — active, not deprecated or yanked

Inputs used

packages	scrollable-component
ecosystems	npm
any_deprecated	no
min_days_since_publish	37

Engineering Quality

Are baseline engineering and documentation practices in place?

53Moderate · 19% of overall

Engineering practices

38Weak

How it's scored

0/24	CI workflows
24/24	Tests present
0/16	Linter config
0/9.6	Pre-commit hooks
6.4/6.4	.editorconfig
0/20	OpenSSF Scorecard: CI-Tests — no data

Inputs used

has_ci	no
has_tests	yes
has_editorconfig	yes
has_linter_config	no
has_precommit_config	no

Excluded from scoring (no data or not applicable): OpenSSF Scorecard: CI-Tests. Remaining weights renormalized.

Documentation

75Good

How it's scored

30/30	README
0/25	Documentation directory
15/15	Documentation / homepage site — https://scrollable.julien-marcou.fr
10/10	Repository description
10/10	Topics — 7 topics
10/10	Wiki

Inputs used

topics	customizable, scrollbar, native, viewport, web-component, custom-element, scroll
has_wiki	yes
homepage	https://scrollable.julien-marcou.fr
docs_site	https://scrollable.julien-marcou.fr
has_readme	yes
has_docs_dir	no
has_description	yes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

49Weak · 16% of overall

Security posture

36Weak

How it's scored

7.5/7.5	Binary-Artifacts — no binaries found in the repo
0/7.5	Branch-Protection — branch protection not enabled on development/release branches
0/2.5	CI-Tests — no data
0/2.5	CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
0/7.5	Code-Review — Found 0/30 approved changesets -- score normalized to 0
0/2.5	Contributors — project has 0 contributing companies or organizations -- score normalized to 0
0/10	Dangerous-Workflow — no data
0/7.5	Dependency-Update-Tool — no update tool detected
0/5	Fuzzing — project is not fuzzed
2.5/2.5	License — license file detected
7.5/7.5	Maintained — 30 commit(s) and 3 issue activity found in the last 90 days -- score normalized to 10
0/5	Packaging — no data
0/5	Pinned-Dependencies — no data
0/5	SAST — no SAST tool detected
0/5	Security-Policy — security policy file not detected
0/7.5	Signed-Releases — no data
0/7.5	Token-Permissions — no data
6.8/7.5	Vulnerabilities — 1 existing vulnerabilities detected

Inputs used

source	openssf_scorecard
checks_evaluated	12
scorecard_version	v5.5.0
checks_inconclusive	6
scorecard_aggregate	3.6

Excluded from scoring (no data or not applicable): CI-Tests, Dangerous-Workflow, Packaging, Pinned-Dependencies, Signed-Releases, Token-Permissions. Remaining weights renormalized.

Dependency advisories

100Exceptional

How it's scored

35/35	Direct dependencies free of known advisories — no direct dependency carries a known advisory
0/25	Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope
0/40	No advisories left outstanding — no advisory carries a publication date

Inputs used

source	osv
advisories	1
affected_packages	1
assessed_packages	138
unassessed_packages	0
affected_by_severity	high 1
direct_affected_packages	0

Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 138 resolved dependencies against OSV. This repository publishes no package the index resolves, so the repository dependency graph was assessed instead. That graph mixes development and test pins with shipped dependencies, so only the declared runtime dependencies are scored; transitive findings are reported as context and excluded from the score. Reachability is not analyzed.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

27At Risk · 4% of overall

Agent context & guidance

1Critical

How it's scored

0/45	Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15	Machine-readable docs (llms.txt)
0.6/40	Legible commit history — 1 of 88 human commits state their intent (structured subject or explanatory body)

Inputs used

has_llms_txt	no
llms_txt_url	—
legible_history_share	0.011
agent_instruction_files	—
agent_instruction_max_bytes	—

Verify loop (build / test / typecheck)

36Weak

How it's scored

0/18	One-command bootstrap
22/22	Automated tests
0/11	Lint / format config
0/11	Static type checking
10/10	Reproducible environment — lockfile
0/10	Demonstrated agent practice — no agent-authored commits among the last 88
0/8	Automated maintenance — no automated dependency updates observed
0/10	OpenSSF Scorecard: Pinned-Dependencies — no data

Inputs used

has_nix	no
has_tests	yes
lockfiles	package-lock.json
has_dockerfile	no
typed_language	no
bootstrap_files	—
has_devcontainer	no
has_linter_config	no
typecheck_configs	—
agent_commit_share	0
toolchain_manifests	—
dependency_bot_commit_share	0

Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Pinned-Dependencies. Remaining weights renormalized.

Code legibility for models

55Moderate

How it's scored

0/45	Type-checkable code — JavaScript without a type-check config
55/55	Manageable file sizes — 0/12 source files over 60KB

Inputs used

primary_language	JavaScript
largest_source_bytes	15,750
source_files_sampled	12
oversized_source_files	0

Key facts

19GitHub stars

2contributors

40commits, last 12 months

37days since last push

15releases

1bus factor

0open issues

npmpackage ecosystems

Data collection warnings

Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token

More detail

Star and fork history 0 ★ / 2 ⇿

0Stars

2Forks

3Releases

When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.

Major 0Minor 1Patch 1

OpenSSF Scorecard 3.6 / 10

3.6aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-09-06 02:55 UTC

10	Binary-Artifacts	no binaries found in the repo
0	Branch-Protection	branch protection not enabled on development/release branches
n/a	CI-Tests	no pull request found
0	CII-Best-Practices	no effort to earn an OpenSSF best practices badge detected
0	Code-Review	Found 0/30 approved changesets -- score normalized to 0
0	Contributors	project has 0 contributing companies or organizations -- score normalized to 0
n/a	Dangerous-Workflow	no workflows found
0	Dependency-Update-Tool	no update tool detected
0	Fuzzing	project is not fuzzed
10	License	license file detected
10	Maintained	30 commit(s) and 3 issue activity found in the last 90 days -- score normalized to 10
n/a	Packaging	packaging workflow not detected
n/a	Pinned-Dependencies	no dependencies found
0	SAST	no SAST tool detected
0	Security-Policy	security policy file not detected
n/a	Signed-Releases	no releases found
n/a	Token-Permissions	No tokens found
9	Vulnerabilities	1 existing vulnerabilities detected

All dependencies 138

Full resolved dependency set from the GitHub dependency graph: 0 direct and 138 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

Registry	Package	Version	Relation
npm	@blazediff/core	`1.9.1`	indirect
npm	@emnapi/core	`2.0.0-alpha.3`	indirect
npm	@emnapi/runtime	`2.0.0-alpha.3`	indirect
npm	@emnapi/wasi-threads	`2.0.1`	indirect
npm	@esbuild/aix-ppc64	`0.28.1`	indirect
npm	@esbuild/android-arm	`0.28.1`	indirect
npm	@esbuild/android-arm64	`0.28.1`	indirect
npm	@esbuild/android-x64	`0.28.1`	indirect
npm	@esbuild/darwin-arm64	`0.28.1`	indirect
npm	@esbuild/darwin-x64	`0.28.1`	indirect
npm	@esbuild/freebsd-arm64	`0.28.1`	indirect
npm	@esbuild/freebsd-x64	`0.28.1`	indirect
npm	@esbuild/linux-arm	`0.28.1`	indirect
npm	@esbuild/linux-arm64	`0.28.1`	indirect
npm	@esbuild/linux-ia32	`0.28.1`	indirect
npm	@esbuild/linux-loong64	`0.28.1`	indirect
npm	@esbuild/linux-mips64el	`0.28.1`	indirect
npm	@esbuild/linux-ppc64	`0.28.1`	indirect
npm	@esbuild/linux-riscv64	`0.28.1`	indirect
npm	@esbuild/linux-s390x	`0.28.1`	indirect
npm	@esbuild/linux-x64	`0.28.1`	indirect
npm	@esbuild/netbsd-arm64	`0.28.1`	indirect
npm	@esbuild/netbsd-x64	`0.28.1`	indirect
npm	@esbuild/openbsd-arm64	`0.28.1`	indirect
npm	@esbuild/openbsd-x64	`0.28.1`	indirect
npm	@esbuild/openharmony-arm64	`0.28.1`	indirect
npm	@esbuild/sunos-x64	`0.28.1`	indirect
npm	@esbuild/win32-arm64	`0.28.1`	indirect
npm	@esbuild/win32-ia32	`0.28.1`	indirect
npm	@esbuild/win32-x64	`0.28.1`	indirect
npm	@jridgewell/gen-mapping	`0.3.13`	indirect
npm	@jridgewell/resolve-uri	`3.1.2`	indirect
npm	@jridgewell/source-map	`0.3.11`	indirect
npm	@jridgewell/sourcemap-codec	`1.5.5`	indirect
npm	@jridgewell/trace-mapping	`0.3.31`	indirect
npm	@napi-rs/wasm-runtime	`1.2.1`	indirect
npm	@oxc-project/types	`0.142.0`	indirect
npm	@polka/url	`1.0.0-next.29`	indirect
npm	@rolldown/binding-android-arm64	`1.2.1`	indirect
npm	@rolldown/binding-darwin-arm64	`1.2.1`	indirect
npm	@rolldown/binding-darwin-x64	`1.2.1`	indirect
npm	@rolldown/binding-freebsd-x64	`1.2.1`	indirect
npm	@rolldown/binding-linux-arm-gnueabihf	`1.2.1`	indirect
npm	@rolldown/binding-linux-arm64-gnu	`1.2.1`	indirect
npm	@rolldown/binding-linux-arm64-musl	`1.2.1`	indirect
npm	@rolldown/binding-linux-ppc64-gnu	`1.2.1`	indirect
npm	@rolldown/binding-linux-s390x-gnu	`1.2.1`	indirect
npm	@rolldown/binding-linux-x64-gnu	`1.2.1`	indirect
npm	@rolldown/binding-linux-x64-musl	`1.2.1`	indirect
npm	@rolldown/binding-openharmony-arm64	`1.2.1`	indirect
npm	@rolldown/binding-wasm32-wasi	`1.2.1`	indirect
npm	@rolldown/binding-win32-arm64-msvc	`1.2.1`	indirect
npm	@rolldown/binding-win32-x64-msvc	`1.2.1`	indirect
npm	@rolldown/pluginutils	`1.0.1`	indirect
npm	@standard-schema/spec	`1.1.0`	indirect
npm	@tybys/wasm-util	`0.10.3`	indirect
npm	@types/chai	`5.2.3`	indirect
npm	@types/deep-eql	`4.0.2`	indirect
npm	@types/estree	`1.0.9`	indirect
npm	@vitest/browser	`4.1.10`	indirect
npm	@vitest/browser-playwright	`4.1.10`	indirect
npm	@vitest/expect	`4.1.10`	indirect
npm	@vitest/mocker	`4.1.10`	indirect
npm	@vitest/pretty-format	`4.1.10`	indirect
npm	@vitest/runner	`4.1.10`	indirect
npm	@vitest/snapshot	`4.1.10`	indirect
npm	@vitest/spy	`4.1.10`	indirect
npm	@vitest/utils	`4.1.10`	indirect
npm	acorn	`8.18.0`	indirect
npm	assertion-error	`2.0.1`	indirect
npm	buffer-from	`1.1.2`	indirect
npm	camel-case	`4.1.2`	indirect
npm	chai	`6.2.2`	indirect
npm	clean-css	`5.3.3`	indirect
npm	commander	`10.0.1`	indirect
npm	commander	`2.20.3`	indirect
npm	convert-source-map	`2.0.0`	indirect
npm	css-tree	`2.2.1`	indirect
npm	csso	`5.0.5`	indirect
npm	detect-libc	`2.1.2`	indirect
npm	dot-case	`3.0.4`	indirect
npm	entities	`4.5.0`	indirect
npm	es-module-lexer	`2.3.1`	indirect
npm	esbuild	`0.28.1`	indirect
npm	estree-walker	`3.0.3`	indirect
npm	expect-type	`1.4.0`	indirect
npm	fdir	`6.5.0`	indirect
npm	fsevents	`2.3.2`	indirect
npm	fsevents	`2.3.3`	indirect
npm	html-minifier-terser	`7.2.0`	indirect
npm	lightningcss	`1.33.0`	indirect
npm	lightningcss-android-arm64	`1.33.0`	indirect
npm	lightningcss-darwin-arm64	`1.33.0`	indirect
npm	lightningcss-darwin-x64	`1.33.0`	indirect
npm	lightningcss-freebsd-x64	`1.33.0`	indirect
npm	lightningcss-linux-arm-gnueabihf	`1.33.0`	indirect
npm	lightningcss-linux-arm64-gnu	`1.33.0`	indirect
npm	lightningcss-linux-arm64-musl	`1.33.0`	indirect
npm	lightningcss-linux-x64-gnu	`1.33.0`	indirect
npm	lightningcss-linux-x64-musl	`1.33.0`	indirect
npm	lightningcss-win32-arm64-msvc	`1.33.0`	indirect
npm	lightningcss-win32-x64-msvc	`1.33.0`	indirect
npm	lower-case	`2.0.2`	indirect
npm	magic-string	`0.30.21`	indirect
npm	mdn-data	`2.0.28`	indirect
npm	mrmime	`2.0.1`	indirect
npm	nanoid	`3.3.16`	indirect
npm	no-case	`3.0.4`	indirect
npm	obug	`2.1.4`	indirect
npm	param-case	`3.0.4`	indirect
npm	pascal-case	`3.1.2`	indirect
npm	pathe	`2.0.3`	indirect
npm	picocolors	`1.1.1`	indirect
npm	picomatch	`4.0.5`	indirect
npm	playwright	`1.62.0`	indirect
npm	playwright-core	`1.62.0`	indirect
npm	pngjs	`7.0.0`	indirect
npm	postcss	`8.5.25`	indirect
npm	relateurl	`0.2.7`	indirect
npm	rolldown	`1.2.1`	indirect
npm	siginfo	`2.0.0`	indirect
npm	sirv	`3.0.2`	indirect
npm	source-map	`0.6.1`	indirect
npm	source-map-js	`1.2.1`	indirect
npm	source-map-support	`0.5.21`	indirect
npm	stackback	`0.0.2`	indirect
npm	std-env	`4.2.0`	indirect
npm	terser	`5.49.0`	indirect
npm	tinybench	`2.9.0`	indirect
npm	tinyexec	`1.2.4`	indirect
npm	tinyglobby	`0.2.17`	indirect
npm	tinyrainbow	`3.1.1`	indirect
npm	totalist	`3.0.1`	indirect
npm	tslib	`2.8.1`	indirect
npm	vite	`8.2.0`	indirect
npm	vitest	`4.1.10`	indirect
npm	why-is-node-running	`2.3.0`	indirect
npm	ws	`8.21.1`	indirect

Dependency advisories 1

This repository publishes no package the index resolves, so its own dependency graph was assessed — 138 packages, which also include development and test pins that never ship: 1 carry known advisories, of which 0 are direct.

Package	Version	Relation	Severity	Advisories	Fixed in
nanoid	`3.3.16`	indirect	high	1	`5.1.6`

An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.

Raw JSON report machine-readable

Feedback

Spotted something off in this report, or have thoughts to share? Wrong measurements, missed tooling, ideas, questions — anything is welcome. Every message is read and gets a response.

Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.

Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v2.10.0, schema v0.34.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statistics — npm.

Software health index

Score profile

Ownership

Package ecosystems

Metrics by category

Key facts

Data collection warnings

More detail

Feedback

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