Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-10-19 10:01 UTC

w8r / splay-tree

Fast splay-tree data structure

TypeScriptNo license detected★ 122 stars⑂ 19 forkssince Sep 2017View on GitHub ↗

w8r/splay-tree holds a health index of 34 out of 100, placing it in the At Risk band. It scores highest on Engineering Quality (70/100) and lowest on Vitality (36/100). It was last updated 126 days ago. A single contributor accounts for most of its recent work.

34
overall / 100
At Risk

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.

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)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

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 52 is calibrated to 53 on the published index scale (record calibration 2026-08-02). High-Risk Jurisdiction Policy applies a 75% multiplier to weighted overall health and gives it an At Risk ceiling of 34.

Ownership

Alexander MilevskiPersonal account
390 followers163 public repossince Sep 2008@Linkurious

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
npmsplaytree3.2.312,020,98119295 days agobinary-treebstsplay-treesplaybalanced-search-tree

Metrics by category

Vitality

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

36Weak · 21% of overall
How it's scored
9.9/36Push recency — last push 126 days ago
1.4/36Commit cadence — 2/52 weeks with commits
8.1/18Commit volume — 7 commits in the last year
0/10OpenSSF Scorecard: Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Inputs used
commits_last_year7
human_commit_share0.635
days_since_last_push126
active_weeks_last_year2
How it's scored
27/27Ships releases — 5 releases published
16.2/36Release recency — latest release 295 days ago
12.6/27Release cadence — a release every ~245.2 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count5
latest_release_tagv3.2.3
releases_from_tagsno
days_since_latest_release295
mean_days_between_releases245.2
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?

52Moderate · 17% of overall
How it's scored
33.8/60Stars — 122 stars
10.5/25Forks — 19 forks
1.7/15Watchers — 3 watchers
Inputs used
forks19
stars122
watchers3
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
0/22.5License — no license file detected
0/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseno
readme_badges—
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_services—
has_pull_request_templateno
How it's scored
80/80Monthly downloads — 12,020,981 downloads/month across npm
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagessplaytree
dependents—
ecosystemsnpm
total_downloads—
monthly_downloads12,020,981
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?

58Moderate · 23% of overall
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
2.3/22.5Commit distribution — top contributor authored 90% of commits
6.8/13.5Contributor breadth — 5 contributors
10/10OpenSSF Scorecard: Contributors — project has 3 contributing companies or organizations -- score normalized to 10
Inputs used
bus_factor1
contributors_sampled5
top_contributor_share0.897
How it's scored
21/42Issue resolution — 50% of issues closed
26.9/30PR acceptance — 35/39 decided PRs merged
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
3/15OpenSSF Scorecard: Code-Review — Found 3/13 approved changesets -- score normalized to 2
Inputs used
merged_prs35
open_issues5
closed_issues5
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio0.5
closed_unmerged_prs4
first_time_authors_30d0
first_time_prs_merged_30d0
first_time_prs_decided_30d0
Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.
How it's scored
10/30Ownership backing — personal (user) account
0/20Verified domain — not applicable to user accounts
18.6/25Owner reach — 390 followers of w8r
25/25Track record — 163 public repos, account ~18 yr old
Inputs used
followers390
owner_typeUser
is_verified—
owner_loginw8r
public_repos163
account_age_days6,592
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.
How it's scored
25/25Published & resolvable — 1 package(s) on npm
26/35Publish recency — latest publish 295 days ago
20/20Version history — 19 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagessplaytree
ecosystemsnpm
any_deprecatedno
min_days_since_publish295

Engineering Quality

Are baseline engineering and documentation practices in place?

70Good · 19% of overall
How it's scored
24/24CI workflows — 2 workflow(s)
24/24Tests present
16/16Linter config — eslint.config.js
0/9.6Pre-commit hooks
0/6.4.editorconfig
2/20OpenSSF Scorecard: CI-Tests — 3 out of 23 merged PRs checked by a CI test -- score normalized to 1
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configno
How it's scored
30/30README
0/25Documentation directory
15/15Documentation / homepage site — https://npm.runkit.com/splaytree
10/10Repository description
10/10Topics — 6 topics
10/10Wiki
Inputs used
topicsbinary-search-tree, splay-trees, data-structures, algorithms, performance, tree
has_wikiyes
homepagehttps://npm.runkit.com/splaytree
docs_sitehttps://npm.runkit.com/splaytree
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

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

44Weak · 16% of overall
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — no data
0.2/2.5CI-Tests — 3 out of 23 merged PRs checked by a CI test -- score normalized to 1
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
1.5/7.5Code-Review — Found 3/13 approved changesets -- score normalized to 2
2.5/2.5Contributors — project has 3 contributing companies or organizations -- score normalized to 10
10/10Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
0/2.5License — license file not detected
0/7.5Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
5/5Packaging — packaging workflow detected
2/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 4
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — no data
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
0/7.5Vulnerabilities — 33 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated16
scorecard_versionv5.5.0
checks_inconclusive2
scorecard_aggregate4
high_risk_jurisdiction_cap34
high_risk_jurisdiction_multiplier75
security_posture_after_multiplier30
security_posture_before_jurisdiction40
Excluded from scoring (no data or not applicable): Branch-Protection, Signed-Releases. Remaining weights renormalized. High-Risk Jurisdiction Policy applies a 75% multiplier and gives Security posture an At risk ceiling of 34.

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisories — no direct dependency carries a known advisory
0/25Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope
0/40No advisories left outstanding — no advisory carries a publication date
Inputs used
sourceosv
advisories38
affected_packages16
assessed_packages201
unassessed_packages0
affected_by_severitycritical 1, high 10, moderate 5
direct_affected_packages0
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 201 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.

56Moderate · 4% of overall
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
13.3/40Legible commit history — 10 of 40 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.25
agent_instruction_files—
agent_instruction_max_bytes—
How it's scored
0/18One-command bootstrap
22/22Automated tests
11/11Lint / format config — eslint.config.js
11/11Static type checking — tsconfig.json
10/10Reproducible environment — lockfile
6.3/10Demonstrated agent practice — 2 of the last 63 commits agent-authored or agent-credited
8/8Automated maintenance — 23 of the last 63 commits are automated dependency updates
4/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 4
Inputs used
has_nixno
has_testsyes
lockfilespackage-lock.json
has_dockerfileno
typed_languageyes
bootstrap_files—
has_devcontainerno
has_linter_configyes
typecheck_configstsconfig.json
agent_commit_share0.032
toolchain_manifests—
dependency_bot_commit_share0.365
How it's scored
45/45Type-checkable code — TypeScript (statically typed)
55/55Manageable file sizes — 0/21 source files over 60KB
Inputs used
primary_languageTypeScript
largest_source_bytes15,628
source_files_sampled21
oversized_source_files0

Key facts

122GitHub stars
5contributors
7commits, last 12 months
126days since last push
5releases
1bus factor
5open 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 ★ / 19 ⇿
0Stars
19Forks
5Releases

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.

0481216201822018-062022-052026-04
Major 0Minor 1Patch 4

Each point covers 8 days.

OpenSSF Scorecard 4.0 / 10
4.0aggregate

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 · 2026-10-19 10:00 UTC

10Binary-Artifactsno binaries found in the repo
n/aBranch-Protectioninternal 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
1CI-Tests3 out of 23 merged PRs checked by a CI test -- score normalized to 1
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
2Code-ReviewFound 3/13 approved changesets -- score normalized to 2
10Contributorsproject has 3 contributing companies or organizations -- score normalized to 10
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
0Licenselicense file not detected
0Maintained0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
10Packagingpackaging workflow detected
4Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 4
0SASTSAST tool is not run on all commits -- score normalized to 0
0Security-Policysecurity policy file not detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
0Vulnerabilities33 existing vulnerabilities detected
All dependencies 201

Full resolved dependency set from the GitHub dependency graph: 0 direct and 201 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
npm@babel/helper-string-parser7.27.1indirect
npm@babel/helper-validator-identifier7.28.5indirect
npm@babel/parser7.28.5indirect
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npm@esbuild/linux-ia320.27.2indirect
npm@esbuild/linux-loong640.27.2indirect
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npm@esbuild/linux-ppc640.27.2indirect
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npm@esbuild/openbsd-arm640.27.2indirect
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npm@oxlint/darwin-arm641.35.0indirect
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npm@oxlint/linux-arm64-gnu1.35.0indirect
npm@oxlint/linux-arm64-musl1.35.0indirect
npm@oxlint/linux-x64-gnu1.35.0indirect
npm@oxlint/linux-x64-musl1.35.0indirect
npm@oxlint/win32-arm641.35.0indirect
npm@oxlint/win32-x641.35.0indirect
npm@rollup/pluginutils5.3.0indirect
npm@rollup/rollup-android-arm-eabi4.59.0indirect
npm@rollup/rollup-android-arm644.59.0indirect
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npm@rollup/rollup-linux-arm64-musl4.59.0indirect
npm@rollup/rollup-linux-loong64-gnu4.59.0indirect
npm@rollup/rollup-linux-loong64-musl4.59.0indirect
npm@rollup/rollup-linux-ppc64-gnu4.59.0indirect
npm@rollup/rollup-linux-ppc64-musl4.59.0indirect
npm@rollup/rollup-linux-riscv64-gnu4.59.0indirect
npm@rollup/rollup-linux-riscv64-musl4.59.0indirect
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npm@rollup/rollup-linux-x64-musl4.59.0indirect
npm@rollup/rollup-openbsd-x644.59.0indirect
npm@rollup/rollup-openharmony-arm644.59.0indirect
npm@rollup/rollup-win32-arm64-msvc4.59.0indirect
npm@rollup/rollup-win32-ia32-msvc4.59.0indirect
npm@rollup/rollup-win32-x64-gnu4.59.0indirect
npm@rollup/rollup-win32-x64-msvc4.59.0indirect
npm@rushstack/node-core-library5.19.1indirect
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npm@types/argparse1.0.38indirect
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npm@vitest/coverage-v84.0.16indirect
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npm@vitest/mocker4.0.16indirect
npm@vitest/pretty-format4.0.16indirect
npm@vitest/runner4.0.16indirect
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npm@vitest/spy4.0.16indirect
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npm@vue/language-core2.2.0indirect
npm@vue/shared3.5.26indirect
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npmnanoid3.3.11indirect
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npmpkg-types2.3.0indirect
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npmvite7.3.0indirect
npmvite-plugin-dts4.5.4indirect
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npmvscode-uri3.1.0indirect
npmwhy-is-node-running2.3.0indirect
npmyallist4.0.0indirect
Dependency advisories 16

This repository publishes no package the index resolves, so its own dependency graph was assessed — 201 packages, which also include development and test pins that never ship: 16 carry known advisories, of which 0 are direct.

PackageVersionRelationSeverityAdvisoriesFixed in
vitest4.0.16indirectcritical25.0.0-rc.2
@isaacs/brace-expansion5.0.0indirecthigh15.0.1
brace-expansion2.0.2indirecthigh75.0.12
lodash4.17.23indirecthigh24.18.0
minimatch10.0.3indirecthigh310.2.3
minimatch9.0.5indirecthigh310.2.3
nanoid3.3.11indirecthigh35.1.16
picomatch4.0.3indirecthigh24.0.4
postcss8.5.6indirecthigh48.5.23
source-map-js1.2.1indirecthigh11.2.2
vite7.3.0indirecthigh58.0.16
@vitest/mocker4.0.16indirectmoderate15.0.0-rc.2
ajv8.12.0indirectmoderate18.18.0
ajv8.13.0indirectmoderate18.18.0
diff8.0.2indirectmoderate18.0.3
sprintf-js1.0.3indirectmoderate1—

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.

The message is kept through sign-in.

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.