Software health reportschema 0.31.0 · metrics 2.10.0 · 2026-08-05 06:24 UTC

CesiumGS / cesium

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScriptApache-2.0★ 15,528 stars⑂ 3,852 forkssince Mar 2012View on GitHub ↗

#3d #geospatial #gis #3d-tiles #cesium #3d-globe #gltf #czml #webgl

CesiumGS/cesium holds a health index of 98 out of 100, placing it in the Exceptional band. It scores highest on Community & Adoption (97/100) and lowest on AI Readiness (50/100). It was last updated today. 5 contributors account for most of its recent work.

overall / 100

Exceptional

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 88 is calibrated to 98 on the published index scale (record calibration 2026-08-02).

Ownership

CesiumOrganization

1,857 followers67 public repossince Aug 2019

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Package ecosystems

Registry	Package	Version	Downloads / mo	Versions	Last publish	Tags
npm	cesium	1.144.0	1,039,568	165	1 day ago	3d webgl geospatial map globe

Metrics by category

Vitality

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

96Exceptional · 21% of overall

Development activity

100Exceptional

How it's scored

36/36	Push recency — last push 0 days ago
36/36	Commit cadence — 52/52 weeks with commits
18/18	Commit volume — 3,197 commits in the last year
10/10	OpenSSF Scorecard: Maintained — 30 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 10

Inputs used

commits_last_year	3,197
human_commit_share	0.99
days_since_last_push	0
active_weeks_last_year	52

Release discipline

90Excellent

How it's scored

27/27	Ships releases — 100 releases published
36/36	Release recency — latest release 1 days ago
27/27	Release cadence — a release every ~27.3 days
0/10	OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases.

Inputs used

releases_count	100
latest_release_tag	1.144
releases_from_tags	no
days_since_latest_release	1
mean_days_between_releases	27.3

Community & Adoption

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

97Exceptional · 17% of overall

Popularity & adoption

100Exceptional

How it's scored

60/60	Stars — 15,528 stars
25/25	Forks — 3,852 forks
14.8/15	Watchers — 461 watchers

Inputs used

forks	3,852
stars	15,528
watchers	461
growth_state	unverified
growth_factor_pct	100
growth_unverified_reason	no_history

Community health

92Excellent

How it's scored

22.5/22.5	README
22.5/22.5	License — recognized license (Apache-2.0)
18/18	CONTRIBUTING guide
13.5/13.5	Code of conduct
0/7.2	Issue template
6.3/6.3	PR template

Inputs used

has_readme	yes
has_license	yes
readme_badges	3
has_contributing	yes
has_issue_template	no
has_code_of_conduct	yes
readme_badge_services	github.com, shields.io
has_pull_request_template	yes

Ecosystem adoption (downloads)

100Exceptional

How it's scored

80/80	Monthly downloads — 1,039,568 downloads/month across npm
0/20	Registry dependents — not reported by this ecosystem

Inputs used

packages	cesium
dependents	—
ecosystems	npm
total_downloads	—
monthly_downloads	1,039,568
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?

91Excellent · 23% of overall

Maintainer resilience (bus factor)

89Excellent

How it's scored

45.9/54	Bus factor — 5 contributor(s) cover half of all commits
19.4/22.5	Commit distribution — top contributor authored 14% of commits
13.5/13.5	Contributor breadth — 100 contributors
10/10	OpenSSF Scorecard: Contributors — project has 37 contributing companies or organizations

Inputs used

bus_factor	5
contributors_sampled	100
top_contributor_share	0.137

Issue & PR responsiveness

78Good

How it's scored

32.2/42	Issue resolution — 77% of issues closed
26.2/30	PR acceptance — 6,007/6,883 decided PRs merged
7.4/13	Newcomer PR acceptance — 4/7 first-time contributors' PRs merged in 30d
12/15	OpenSSF Scorecard: Code-Review — Found 8/10 approved changesets -- score normalized to 8

Inputs used

merged_prs	6,007
open_issues	1,546
closed_issues	5,062
prs_merged_7d	10
prs_decided_7d	12
prs_merged_30d	24
prs_decided_30d	28
issue_closed_ratio	0.766
closed_unmerged_prs	876
first_time_authors_30d	7
first_time_prs_merged_30d	4
first_time_prs_decided_30d	7

Ownership & stewardship

98Exceptional

How it's scored

30/30	Ownership backing — organization-owned
0/20	Verified domain — verified-domain status not read for this organization
23.5/25	Owner reach — 1,857 followers of CesiumGS
25/25	Track record — 67 public repos, account ~6 yr old

Inputs used

followers	1,857
owner_type	Organization
is_verified	—
owner_login	CesiumGS
public_repos	67
account_age_days	2,531

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 1 days ago
20/20	Version history — 165 published versions
20/20	Not deprecated — active, not deprecated or yanked

Inputs used

packages	cesium
ecosystems	npm
any_deprecated	no
min_days_since_publish	1

Engineering Quality

Are baseline engineering and documentation practices in place?

94Exceptional · 19% of overall

Engineering practices

90Excellent

How it's scored

24/24	CI workflows — 6 workflow(s)
24/24	Tests present
16/16	Linter config — eslint.config.js
0/9.6	Pre-commit hooks
6.4/6.4	.editorconfig
20/20	OpenSSF Scorecard: CI-Tests — 9 out of 9 merged PRs checked by a CI test -- score normalized to 10

Inputs used

has_ci	yes
has_tests	yes
has_editorconfig	yes
has_linter_config	yes
has_precommit_config	no

Documentation

100Exceptional

How it's scored

30/30	README
25/25	Documentation directory
15/15	Documentation / homepage site — https://cesium.com/cesiumjs/
10/10	Repository description
10/10	Topics — 9 topics
10/10	Wiki

Inputs used

topics	3d, geospatial, gis, 3d-tiles, cesium, 3d-globe, gltf, czml, webgl
has_wiki	yes
homepage	https://cesium.com/cesiumjs/
docs_site	https://cesium.com/cesiumjs/
has_readme	yes
has_docs_dir	yes
has_description	yes

Security

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

65Good · 16% of overall

Security posture

56Moderate

How it's scored

6/7.5	Binary-Artifacts — binaries present in source code
3.8/7.5	Branch-Protection — branch protection is not maximal on development and all release branches
2.5/2.5	CI-Tests — 9 out of 9 merged PRs checked by a CI test -- score normalized to 10
0/2.5	CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
6/7.5	Code-Review — Found 8/10 approved changesets -- score normalized to 8
2.5/2.5	Contributors — project has 37 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
7.5/7.5	Maintained — 30 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 10
0/5	Packaging — no data
0/5	Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5	SAST — SAST tool is not run on all commits -- score normalized to 0
0/5	Security-Policy — security policy file not detected
0/7.5	Signed-Releases — Project has not signed or included provenance with any releases.
0/7.5	Token-Permissions — detected GitHub workflow tokens with excessive permissions
7.5/7.5	Vulnerabilities — 0 existing vulnerabilities detected

Inputs used

source	openssf_scorecard
checks_evaluated	17
scorecard_version	v5.5.0
checks_inconclusive	1
scorecard_aggregate	5.6

Excluded from scoring (no data or not applicable): Packaging. 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	0
affected_packages	0
assessed_packages	4
unassessed_packages	114
affected_by_severity	none
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 4 resolved dependencies against OSV. 114 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list. 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.

50Moderate · 4% of overall

Agent context & guidance

12Critical

How it's scored

0/45	Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15	Machine-readable docs (llms.txt)
12.4/40	Legible commit history — 23 of 99 human commits state their intent (structured subject or explanatory body)

Inputs used

has_llms_txt	no
llms_txt_url	—
legible_history_share	0.232
agent_instruction_files	—
agent_instruction_max_bytes	—

Verify loop (build / test / typecheck)

49Weak

How it's scored

0/18	One-command bootstrap
22/22	Automated tests
11/11	Lint / format config — eslint.config.js
11/11	Static type checking — Specs/TypeScript/tsconfig.json, Tools/jsdoc/tsconfig.json, packages/engine/tsconfig.json, packages/sandcastle/tsconfig.json, tsconfig.json
0/10	Reproducible environment
0/10	Demonstrated agent practice — no agent-authored commits among the last 100
5/8	Automated maintenance — dependency automation configured, none observed in the sampled commits
0/10	OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0

Inputs used

has_nix	no
has_tests	yes
lockfiles	—
has_dockerfile	no
typed_language	no
bootstrap_files	—
has_devcontainer	no
has_linter_config	yes
typecheck_configs	Specs/TypeScript/tsconfig.json, Tools/jsdoc/tsconfig.json, packages/engine/tsconfig.json, packages/sandcastle/tsconfig.json, tsconfig.json
agent_commit_share	0
toolchain_manifests	—
dependency_bot_commit_share	0

Code legibility for models

81Excellent

How it's scored

27/45	Type-checkable code — JavaScript with type-check config (Specs/TypeScript/tsconfig.json, Tools/jsdoc/tsconfig.json, packages/engine/tsconfig.json, packages/sandcastle/tsconfig.json, tsconfig.json)
53.6/55	Manageable file sizes — 60/2,291 source files over 60KB

Inputs used

primary_language	JavaScript
largest_source_bytes	582,696
source_files_sampled	2,291
oversized_source_files	60

Machine-readable interfaces

100Exceptional

How it's scored

0/40	API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software
0/20	MCP server — not applicable to this kind of software
40/40	Runnable examples — examples

Inputs used

example_dirs	examples
has_mcp_signal	no
api_schema_files	—
interfaces_expected_of	—

Excluded from scoring (no data or not applicable): API schema (OpenAPI/GraphQL/proto), MCP server. Remaining weights renormalized.

Key facts

15,528GitHub stars

100contributors

3,197commits, last 12 months

0days since last push

100releases

5bus factor

1,546open issues

npmpackage ecosystems

Data collection warnings

Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
First-time contributor figures cover 12 of 21 authors (cap 12)
deps.dev does not index npm:cesium@1.144.0; advisories assessed against the repository dependency graph instead

More detail

Star and fork history 0 ★ / 3,852 ⇿

0Stars

3,852Forks

48Releases

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.

Only the most recent history is shown — this repository exceeds the collection window, so the earliest history is not captured.

Major 0Minor 0Patch 5

Each point covers 4 days.

OpenSSF Scorecard 5.6 / 10

5.6aggregate

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 · 2026-08-05 06:23 UTC

8	Binary-Artifacts	binaries present in source code
5	Branch-Protection	branch protection is not maximal on development and all release branches
10	CI-Tests	9 out of 9 merged PRs checked by a CI test -- score normalized to 10
0	CII-Best-Practices	no effort to earn an OpenSSF best practices badge detected
8	Code-Review	Found 8/10 approved changesets -- score normalized to 8
10	Contributors	project has 37 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
10	Maintained	30 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 10
n/a	Packaging	packaging workflow not detected
0	Pinned-Dependencies	dependency not pinned by hash detected -- score normalized to 0
0	SAST	SAST tool is not run on all commits -- score normalized to 0
0	Security-Policy	security policy file not detected
0	Signed-Releases	Project has not signed or included provenance with any releases.
0	Token-Permissions	detected GitHub workflow tokens with excessive permissions
10	Vulnerabilities	0 existing vulnerabilities detected

Direct dependencies 3

Registry	Package	Version constraint	Manifest
npm	@cesium/engine	`^26.2.0`	package.json
npm	@cesium/widgets	`^16.1.1`	package.json
npm	protobufjs	`^8.6.5`	package.json

All dependencies 118

Full resolved dependency set from the GitHub dependency graph: 3 direct and 115 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

Registry	Package	Version	Relation
npm	@cesium/engine	`^26.2.0`	direct
npm	@cesium/widgets	`^16.1.1`	direct
npm	protobufjs	`^8.6.5`	direct
npm	@ariakit/react	`^0.4.29`	indirect
npm	@ast-grep/cli	`^0.44.0`	indirect
npm	@cesium/eslint-config	`^14.0.0`	indirect
npm	@cesium/wasm-splats	`^0.1.0-alpha.2`	indirect
npm	@dotenvx/dotenvx	`^1.52.0`	indirect
npm	@huggingface/transformers	`^4.0.0`	indirect
npm	@monaco-editor/react	`^4.7.0`	indirect
npm	@octokit/core	`^6.1.2`	indirect
npm	@playwright/test	`^1.59.1`	indirect
npm	@spz-loader/core	`0.3.1`	indirect
npm	@stratakit/bricks	`^0.5.4`	indirect
npm	@stratakit/foundations	`^0.4.7`	indirect
npm	@stratakit/icons	`^0.3.1`	indirect
npm	@stratakit/structures	`^0.5.5`	indirect
npm	@tweenjs/tween.js	`^25.0.0`	indirect
npm	@types/express	`^5.0.6`	indirect
npm	@types/prettier	`^2.7.3`	indirect
npm	@types/react	`^19.2.7`	indirect
npm	@types/react-dom	`^19.0.4`	indirect
npm	@vitejs/plugin-react	`^6.0.1`	indirect
npm	@zip.js/zip.js	`^2.8.1`	indirect
npm	allotment	`^1.20.4`	indirect
npm	autolinker	`^4.0.0`	indirect
npm	bitmap-sdf	`^1.0.3`	indirect
npm	chokidar	`^5.0.0`	indirect
npm	classnames	`^2.5.1`	indirect
npm	cloc	`^2.6.0-cloc`	indirect
npm	compression	`^1.7.4`	indirect
npm	date-fns	`^4.1.0`	indirect
npm	dompurify	`^3.3.0`	indirect
npm	dompurify	`^3.3.1`	indirect
npm	draco3d	`^1.5.1`	indirect
npm	earcut	`3.0.2`	indirect
npm	esbuild	`^0.28.0`	indirect
npm	eslint	`^10.4.1`	indirect
npm	eslint-plugin-html	`^8.1.1`	indirect
npm	eslint-plugin-react-hooks	`^7.1.1`	indirect
npm	eslint-plugin-react-refresh	`^0.5.2`	indirect
npm	eslint-seatbelt	`^0.1.3`	indirect
npm	espree	`^11.1.1`	indirect
npm	esquery	`^1.7.0`	indirect
npm	express	`^5.1.0`	indirect
npm	fastest-levenshtein	`^1.0.16`	indirect
npm	fs-extra	`^11.2.0`	indirect
npm	globals	`^17.4.0`	indirect
npm	globby	`^16.0.0`	indirect
npm	globby	`^16.2.0`	indirect
npm	glsl-strip-comments	`^1.0.0`	indirect
npm	googleapis	`^137.1.0`	indirect
npm	grapheme-splitter	`^1.0.4`	indirect
npm	gulp	`^5.0.0`	indirect
npm	gulp-clean-css	`^4.3.0`	indirect
npm	gulp-insert	`^0.5.0`	indirect
npm	gulp-rename	`^2.0.0`	indirect
npm	gulp-replace	`^1.1.3`	indirect
npm	gulp-tap	`^2.0.0`	indirect
npm	gulp-zip	`^6.0.0`	indirect
npm	handlebars	`^4.7.8`	indirect
npm	husky	`^9.0.7`	indirect
npm	istanbul-lib-instrument	`^6.0.0`	indirect
npm	jasmine-core	`^5.9.0`	indirect
npm	jsdoc	`^3.6.7`	indirect
npm	jsep	`^1.3.8`	indirect
npm	karma	`^6.3.20`	indirect
npm	karma-chrome-launcher	`^3.1.0`	indirect
npm	karma-coverage	`^2.0.3`	indirect
npm	karma-detect-browsers	`^2.3.3`	indirect
npm	karma-edge-launcher	`^0.4.2`	indirect
npm	karma-firefox-launcher	`^2.1.1`	indirect
npm	karma-ie-launcher	`^1.0.0`	indirect
npm	karma-jasmine	`^5.1.0`	indirect
npm	karma-longest-reporter	`^1.1.0`	indirect
npm	karma-safari-launcher	`^1.0.0`	indirect
npm	karma-sourcemap-loader	`^0.4.0`	indirect
npm	karma-spec-reporter	`^0.0.36`	indirect
npm	kdbush	`^4.0.1`	indirect
npm	ktx-parse	`^1.0.0`	indirect
npm	lebab	`^3.2.8`	indirect
npm	lerc	`^2.0.0`	indirect
npm	magic-string	`^0.25.3`	indirect
npm	markdownlint-cli	`^0.49.0`	indirect
npm	merge-stream	`^2.0.0`	indirect
npm	mersenne-twister	`^1.1.0`	indirect
npm	meshoptimizer	`^1.0.1`	indirect
npm	mkdirp	`^3.0.1`	indirect
npm	monaco-editor	`^0.52.2`	indirect
npm	node-fetch	`^3.2.10`	indirect
npm	nosleep.js	`^0.12.0`	indirect
npm	open	`^11.0.0`	indirect
npm	pagefind	`^1.3.0`	indirect
npm	pako	`^3.0.0`	indirect
npm	prettier	`3.9.6`	indirect
npm	prettier	`^3.8.1`	indirect
npm	prismjs	`^1.28.0`	indirect
npm	rbush	`^4.0.1`	indirect
npm	react	`^19.0.0`	indirect
npm	react-dom	`^19.0.0`	indirect
npm	react-markdown	`^10.1.0`	indirect
npm	react-stay-scrolled	`^10.0.0`	indirect
npm	react-use	`^17.6.0`	indirect
npm	react-virtuoso	`^4.14.1`	indirect
npm	recast	`^0.23.11`	indirect
npm	remark-gfm	`^4.0.1`	indirect
npm	rimraf	`^6.0.1`	indirect
npm	rollup-pluginutils	`^2.8.2`	indirect
npm	slugify	`^1.6.6`	indirect
npm	topojson-client	`^3.1.0`	indirect
npm	tsd-jsdoc	`^2.5.0`	indirect
npm	typescript	`^6.0.2`	indirect
npm	typescript-eslint	`^8.30.1`	indirect
npm	urijs	`^1.19.7`	indirect
npm	vite	`8.0.16`	indirect
npm	vite-plugin-static-copy	`^4.1.0`	indirect
npm	yaml	`^2.8.3`	indirect
npm	yargs	`^18.0.0`	indirect

Dependency advisories 0

This repository publishes no package the index resolves, so its own dependency graph was assessed — 4 packages, which also include development and test pins that never ship: 0 carry known advisories, of which 0 are direct. 114 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list.

No known advisories affect the assessed dependencies.

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 v0.31.0 — 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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