Software health reportschema 0.30.0 · metrics 2.10.0 · 2026-08-04 17:43 UTC

juliangruber / isarray

Array#isArray for older browsers.

JavaScriptMIT★ 132 stars⑂ 44 forkssince May 2013View on GitHub ↗

juliangruber/isarray holds a health index of 65 out of 100, placing it in the Good band. It scores highest on Security (74/100) and lowest on AI Readiness (43/100). It was last updated 14 days ago. A single contributor accounts for most of its recent work.

overall / 100

Good

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 60 is calibrated to 65 on the published index scale (record calibration 2026-08-02).

Ownership

Julian GruberPersonal account

1,733 followers815 public repossince May 2008@socketdev

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	isarray	2.0.5	985,692,473	9	2584 days ago	browser isarray array

Metrics by category

Vitality

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

48Weak · 21% of overall

Development activity

50Moderate

How it's scored

28.8/36	Push recency — last push 14 days ago
8.3/36	Commit cadence — 12/52 weeks with commits
10.3/18	Commit volume — 13 commits in the last year
3/10	OpenSSF Scorecard: Maintained — 4 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 3

Inputs used

commits_last_year	13
human_commit_share	0.57
days_since_last_push	14
active_weeks_last_year	12

Release discipline

44Weak

How it's scored

27/27	Ships releases — 1 releases published
0/36	Release recency — latest release 2,467 days ago
12.6/27	Release cadence — cadence unknown (single release)
0/10	OpenSSF Scorecard: Signed-Releases — no data

Inputs used

releases_count	1
latest_release_tag	v2.0.5
releases_from_tags	no
days_since_latest_release	2,467
mean_days_between_releases	—

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?

71Good · 17% of overall

Popularity & adoption

53Moderate

How it's scored

34.3/60	Stars — 132 stars
13.6/25	Forks — 44 forks
5/15	Watchers — 9 watchers

Inputs used

forks	44
stars	132
watchers	9
growth_state	unverified
growth_factor_pct	100
growth_unverified_reason	no_history

Community health

70Good

How it's scored

22.5/22.5	README
22.5/22.5	License — recognized license (MIT)
18/18	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	3
has_contributing	yes
has_issue_template	no
has_code_of_conduct	no
readme_badge_services	api.securityscorecards.dev, shields.io, www.bestpractices.dev
has_pull_request_template	no

Ecosystem adoption (downloads)

100Exceptional

How it's scored

80/80	Monthly downloads — 985,692,473 downloads/month across npm
0/20	Registry dependents — not reported by this ecosystem

Inputs used

packages	isarray
dependents	—
ecosystems	npm
total_downloads	—
monthly_downloads	985,692,473
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?

65Good · 23% of overall

Maintainer resilience (bus factor)

38Weak

How it's scored

9/54	Bus factor — 1 contributor(s) cover half of all commits
5/22.5	Commit distribution — top contributor authored 78% of commits
13.5/13.5	Contributor breadth — 13 contributors
10/10	OpenSSF Scorecard: Contributors — project has 17 contributing companies or organizations

Inputs used

bus_factor	1
contributors_sampled	13
top_contributor_share	0.776

Issue & PR responsiveness

86Excellent

How it's scored

39.2/42	Issue resolution — 93% of issues closed
20.9/30	PR acceptance — 67/96 decided PRs merged
0/13	Newcomer PR acceptance — no first-time contributor's PR decided in 30d
15/15	OpenSSF Scorecard: Code-Review — all changesets reviewed

Inputs used

merged_prs	67
open_issues	1
closed_issues	14
prs_merged_7d	0
prs_decided_7d	0
prs_merged_30d	0
prs_decided_30d	0
issue_closed_ratio	0.933
closed_unmerged_prs	29
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

73Good

How it's scored

10/30	Ownership backing — personal (user) account
0/20	Verified domain — not applicable to user accounts
23.3/25	Owner reach — 1,733 followers of juliangruber
25/25	Track record — 815 public repos, account ~18 yr old

Inputs used

followers	1,733
owner_type	User
is_verified	—
owner_login	juliangruber
public_repos	815
account_age_days	6,656

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

Package maintenance

69Good

How it's scored

25/25	Published & resolvable — 1 package(s) on npm
4/35	Publish recency — latest publish 2,584 days ago
20/20	Version history — 9 published versions
20/20	Not deprecated — active, not deprecated or yanked

Inputs used

packages	isarray
ecosystems	npm
any_deprecated	no
min_days_since_publish	2,584

Engineering Quality

Are baseline engineering and documentation practices in place?

49Weak · 19% of overall

Engineering practices

48Weak

How it's scored

24/24	CI workflows — 5 workflow(s)
0/24	Tests present
16/16	Linter config — .eslintrc
0/9.6	Pre-commit hooks
0/6.4	.editorconfig
8/20	OpenSSF Scorecard: CI-Tests — 13 out of 29 merged PRs checked by a CI test -- score normalized to 4

Inputs used

has_ci	yes
has_tests	no
has_editorconfig	no
has_linter_config	yes
has_precommit_config	no

Documentation

50Moderate

How it's scored

30/30	README
0/25	Documentation directory
0/15	Documentation / homepage site
10/10	Repository description
0/10	Topics
10/10	Wiki

Inputs used

topics	—
has_wiki	yes
homepage	—
docs_site	—
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?

74Good · 16% of overall

Security posture

68Good

How it's scored

7.5/7.5	Binary-Artifacts — no binaries found in the repo
0/7.5	Branch-Protection — no data
1/2.5	CI-Tests — 13 out of 29 merged PRs checked by a CI test -- score normalized to 4
1.2/2.5	CII-Best-Practices — badge detected: Passing
7.5/7.5	Code-Review — all changesets reviewed
2.5/2.5	Contributors — project has 17 contributing companies or organizations
10/10	Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5	Dependency-Update-Tool — update tool detected
0/5	Fuzzing — project is not fuzzed
2.5/2.5	License — license file detected
2.2/7.5	Maintained — 4 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 3
0/5	Packaging — no data
2/5	Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 4
0/5	SAST — SAST tool is not run on all commits -- score normalized to 0
5/5	Security-Policy — security policy file detected
0/7.5	Signed-Releases — no data
7.5/7.5	Token-Permissions — GitHub workflow tokens follow principle of least privilege
1.5/7.5	Vulnerabilities — 8 existing vulnerabilities detected

Inputs used

source	openssf_scorecard
checks_evaluated	15
scorecard_version	v5.5.0
checks_inconclusive	3
scorecard_aggregate	6.8

Excluded from scoring (no data or not applicable): Branch-Protection, Packaging, Signed-Releases. 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	8
affected_packages	4
assessed_packages	150
unassessed_packages	0
affected_by_severity	high 3, moderate 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 150 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.

43Weak · 4% of overall

Agent context & guidance

26At Risk

How it's scored

0/45	Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15	Machine-readable docs (llms.txt)
26.2/40	Legible commit history — 28 of 57 human commits state their intent (structured subject or explanatory body)

Inputs used

has_llms_txt	no
llms_txt_url	—
legible_history_share	0.491
agent_instruction_files	—
agent_instruction_max_bytes	—

Verify loop (build / test / typecheck)

51Moderate

How it's scored

18/18	One-command bootstrap — Makefile
0/22	Automated tests
11/11	Lint / format config — .eslintrc
0/11	Static type checking
10/10	Reproducible environment — lockfile
0/10	Demonstrated agent practice — no agent-authored commits among the last 100
8/8	Automated maintenance — 43 of the last 100 commits are automated dependency updates
4/10	OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 4

Inputs used

has_nix	no
has_tests	no
lockfiles	package-lock.json
has_dockerfile	no
typed_language	no
bootstrap_files	Makefile
has_devcontainer	no
has_linter_config	yes
typecheck_configs	—
agent_commit_share	0
toolchain_manifests	—
dependency_bot_commit_share	0.43

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 — 0/2 source files over 60KB

Inputs used

primary_language	JavaScript
largest_source_bytes	1,162
source_files_sampled	2
oversized_source_files	0

Key facts

132GitHub stars

13contributors

13commits, last 12 months

14days since last push

1releases

1bus factor

1open 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 ★ / 44 ⇿

0Stars

44Forks

1Releases

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 0Patch 1

Each point covers 10 days.

OpenSSF Scorecard 6.8 / 10

6.8aggregate

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 · 2026-08-04 17:43 UTC

10	Binary-Artifacts	no binaries found in the repo
n/a	Branch-Protection	internal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md
4	CI-Tests	13 out of 29 merged PRs checked by a CI test -- score normalized to 4
5	CII-Best-Practices	badge detected: Passing
10	Code-Review	all changesets reviewed
10	Contributors	project has 17 contributing companies or organizations
10	Dangerous-Workflow	no dangerous workflow patterns detected
10	Dependency-Update-Tool	update tool detected
0	Fuzzing	project is not fuzzed
10	License	license file detected
3	Maintained	4 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 3
n/a	Packaging	packaging workflow not detected
4	Pinned-Dependencies	dependency not pinned by hash detected -- score normalized to 4
0	SAST	SAST tool is not run on all commits -- score normalized to 0
10	Security-Policy	security policy file detected
n/a	Signed-Releases	no releases found
10	Token-Permissions	GitHub workflow tokens follow principle of least privilege
2	Vulnerabilities	8 existing vulnerabilities detected

All dependencies 150

Full resolved dependency set from the GitHub dependency graph: 0 direct and 150 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

Registry	Package	Version	Relation
npm	@eslint/eslintrc	`1.3.0`	indirect
npm	@eslint/eslintrc	`3.3.1`	indirect
npm	@humanwhocodes/config-array	`0.9.5`	indirect
npm	@humanwhocodes/object-schema	`1.2.1`	indirect
npm	@ljharb/eslint-config	`22.0.0`	indirect
npm	acorn	`8.15.0`	indirect
npm	acorn-jsx	`5.3.2`	indirect
npm	ajv	`6.12.6`	indirect
npm	ansi-regex	`5.0.1`	indirect
npm	ansi-styles	`4.3.0`	indirect
npm	argparse	`2.0.1`	indirect
npm	array.prototype.every	`1.1.3`	indirect
npm	available-typed-arrays	`1.0.5`	indirect
npm	balanced-match	`1.0.2`	indirect
npm	brace-expansion	`1.1.11`	indirect
npm	call-bind	`1.0.2`	indirect
npm	callsites	`3.1.0`	indirect
npm	chalk	`4.1.2`	indirect
npm	color-convert	`2.0.1`	indirect
npm	color-name	`1.1.4`	indirect
npm	concat-map	`0.0.1`	indirect
npm	cross-spawn	`7.0.3`	indirect
npm	debug	`4.3.4`	indirect
npm	deep-equal	`2.0.5`	indirect
npm	deep-is	`0.1.4`	indirect
npm	define-properties	`1.1.4`	indirect
npm	defined	`1.0.0`	indirect
npm	doctrine	`3.0.0`	indirect
npm	dotignore	`0.1.2`	indirect
npm	es-abstract	`1.20.1`	indirect
npm	es-get-iterator	`1.1.2`	indirect
npm	es-to-primitive	`1.2.1`	indirect
npm	escape-string-regexp	`4.0.0`	indirect
npm	eslint	`8.8.0`	indirect
npm	eslint-scope	`7.1.0`	indirect
npm	eslint-utils	`3.0.0`	indirect
npm	eslint-visitor-keys	`2.1.0`	indirect
npm	eslint-visitor-keys	`3.3.0`	indirect
npm	eslint-visitor-keys	`4.2.1`	indirect
npm	espree	`10.4.0`	indirect
npm	espree	`9.3.2`	indirect
npm	esquery	`1.4.0`	indirect
npm	esrecurse	`4.3.0`	indirect
npm	estraverse	`5.3.0`	indirect
npm	esutils	`2.0.3`	indirect
npm	fast-deep-equal	`3.1.3`	indirect
npm	fast-json-stable-stringify	`2.1.0`	indirect
npm	fast-levenshtein	`2.0.6`	indirect
npm	file-entry-cache	`6.0.1`	indirect
npm	flat-cache	`3.0.4`	indirect
npm	flatted	`3.4.2`	indirect
npm	for-each	`0.3.3`	indirect
npm	fs.realpath	`1.0.0`	indirect
npm	function-bind	`1.1.1`	indirect
npm	function.prototype.name	`1.1.5`	indirect
npm	functional-red-black-tree	`1.0.1`	indirect
npm	functions-have-names	`1.2.3`	indirect
npm	get-intrinsic	`1.1.2`	indirect
npm	get-package-type	`0.1.0`	indirect
npm	get-symbol-description	`1.0.0`	indirect
npm	glob	`7.2.3`	indirect
npm	glob-parent	`6.0.2`	indirect
npm	globals	`13.17.0`	indirect
npm	globals	`14.0.0`	indirect
npm	has	`1.0.3`	indirect
npm	has-bigints	`1.0.2`	indirect
npm	has-dynamic-import	`2.0.1`	indirect
npm	has-flag	`4.0.0`	indirect
npm	has-property-descriptors	`1.0.0`	indirect
npm	has-symbols	`1.0.3`	indirect
npm	has-tostringtag	`1.0.0`	indirect
npm	ignore	`5.2.0`	indirect
npm	import-fresh	`3.3.0`	indirect
npm	imurmurhash	`0.1.4`	indirect
npm	inflight	`1.0.6`	indirect
npm	inherits	`2.0.4`	indirect
npm	internal-slot	`1.0.3`	indirect
npm	is-arguments	`1.1.1`	indirect
npm	is-bigint	`1.0.4`	indirect
npm	is-boolean-object	`1.1.2`	indirect
npm	is-callable	`1.2.4`	indirect
npm	is-core-module	`2.9.0`	indirect
npm	is-date-object	`1.0.5`	indirect
npm	is-extglob	`2.1.1`	indirect
npm	is-glob	`4.0.3`	indirect
npm	is-map	`2.0.2`	indirect
npm	is-negative-zero	`2.0.2`	indirect
npm	is-number-object	`1.0.7`	indirect
npm	is-regex	`1.1.4`	indirect
npm	is-set	`2.0.2`	indirect
npm	is-shared-array-buffer	`1.0.2`	indirect
npm	is-string	`1.0.7`	indirect
npm	is-symbol	`1.0.4`	indirect
npm	is-typed-array	`1.1.9`	indirect
npm	is-weakmap	`2.0.1`	indirect
npm	is-weakref	`1.0.2`	indirect
npm	is-weakset	`2.0.2`	indirect
npm	isarray	`2.0.5`	indirect
npm	isexe	`2.0.0`	indirect
npm	js-yaml	`4.2.0`	indirect
npm	json-schema-traverse	`0.4.1`	indirect
npm	json-stable-stringify-without-jsonify	`1.0.1`	indirect
npm	levn	`0.4.1`	indirect
npm	lodash.merge	`4.6.2`	indirect
npm	minimatch	`3.1.5`	indirect
npm	minimist	`1.2.6`	indirect
npm	ms	`2.1.2`	indirect
npm	natural-compare	`1.4.0`	indirect
npm	object-inspect	`1.12.2`	indirect
npm	object-is	`1.1.5`	indirect
npm	object-keys	`1.1.1`	indirect
npm	object.assign	`4.1.4`	indirect
npm	once	`1.4.0`	indirect
npm	optionator	`0.9.1`	indirect
npm	parent-module	`1.0.1`	indirect
npm	path-is-absolute	`1.0.1`	indirect
npm	path-key	`3.1.1`	indirect
npm	path-parse	`1.0.7`	indirect
npm	prelude-ls	`1.2.1`	indirect
npm	punycode	`2.1.1`	indirect
npm	regexp.prototype.flags	`1.4.3`	indirect
npm	regexpp	`3.2.0`	indirect
npm	resolve	`2.0.0-next.4`	indirect
npm	resolve-from	`4.0.0`	indirect
npm	resumer	`0.0.0`	indirect
npm	rimraf	`3.0.2`	indirect
npm	shebang-command	`2.0.0`	indirect
npm	shebang-regex	`3.0.0`	indirect
npm	side-channel	`1.0.4`	indirect
npm	string.prototype.trim	`1.2.6`	indirect
npm	string.prototype.trimend	`1.0.5`	indirect
npm	string.prototype.trimstart	`1.0.5`	indirect
npm	strip-ansi	`6.0.1`	indirect
npm	strip-json-comments	`3.1.1`	indirect
npm	supports-color	`7.2.0`	indirect
npm	supports-preserve-symlinks-flag	`1.0.0`	indirect
npm	tape	`5.6.1`	indirect
npm	text-table	`0.2.0`	indirect
npm	through	`2.3.8`	indirect
npm	type-check	`0.4.0`	indirect
npm	type-fest	`0.20.2`	indirect
npm	unbox-primitive	`1.0.2`	indirect
npm	uri-js	`4.4.1`	indirect
npm	v8-compile-cache	`2.3.0`	indirect
npm	which	`2.0.2`	indirect
npm	which-boxed-primitive	`1.0.2`	indirect
npm	which-collection	`1.0.1`	indirect
npm	which-typed-array	`1.1.8`	indirect
npm	word-wrap	`1.2.4`	indirect
npm	wrappy	`1.0.2`	indirect

Dependency advisories 4

This repository publishes no package the index resolves, so its own dependency graph was assessed — 150 packages, which also include development and test pins that never ship: 4 carry known advisories, of which 0 are direct.

Package	Version	Relation	Severity	Advisories	Fixed in
brace-expansion	`1.1.11`	indirect	high	5	`5.0.9`
cross-spawn	`7.0.3`	indirect	high	1	`7.0.5`
js-yaml	`4.2.0`	indirect	high	1	`4.3.0`
ajv	`6.12.6`	indirect	moderate	1	`8.18.0`

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 v0.30.0 — 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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