Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-17 00:27 UTC

frequency-chain / parquetjs

Fully asynchronous, pure JavaScript implementation of the Parquet file format with additional features

TypeScript · JavaScriptMIT★ 96 stars⑂ 34 forkssince Apr 2021forkView on GitHub ↗
KindLibraryhow this is determined
#bloom-filter#parquet#javascript#javascript-library

frequency-chain/parquetjs holds a health index of 75 out of 100, placing it in the Good band. It scores highest on AI Readiness (81/100) and lowest on Engineering Quality (52/100). It was last updated 20 days ago. 2 contributors account for most of its recent work.

75
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.

75
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 65 is calibrated to 75 on the published index scale (record calibration 2026-08-02).

Ownership

FrequencyOrganization · verified domain
14 followers41 public repossince Jun 2022

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
npm@dsnp/parquetjs1.9.31,873,23310520 days agodremelparquet

Metrics by category

Vitality

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

68Good · 21% of overall

Development activity

52Moderate
How it's scored
28.8/36Push recency — last push 20 days ago
4.2/36Commit cadence — 6/52 weeks with commits
10.3/18Commit volume — 13 commits in the last year
9/10OpenSSF Scorecard: Maintained — 11 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 9
Inputs used
commits_last_year13
human_commit_share0.97
days_since_last_push20
active_weeks_last_year6

Release discipline

92Excellent
How it's scored
27/27Ships releases — 34 releases published
36/36Release recency — latest release 20 days ago
19.8/27Release cadence — a release every ~80.2 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count34
latest_release_tag1.9.3
releases_from_tagsno
days_since_latest_release20
mean_days_between_releases80.2
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?

53Moderate · 17% of overall

Popularity & adoption

48Weak
How it's scored
32.1/60Stars — 96 stars
12.7/25Forks — 34 forks
3.3/15Watchers — 5 watchers
Inputs used
forks34
stars96
watchers5
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

25At Risk
How it's scored
0/22.5README
22.5/22.5License — recognized license (MIT)
0/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeno
has_licenseno
readme_badges2
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_servicesshields.io
has_pull_request_templateno

Ecosystem adoption (downloads)

100Exceptional
How it's scored
80/80Monthly downloads — 1,873,233 downloads/month across npm
0/20Registry dependents — not reported by this ecosystem
Inputs used
packages@dsnp/parquetjs
dependents—
ecosystemsnpm
total_downloads—
monthly_downloads1,873,233
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?

79Good · 23% of overall

Maintainer resilience (bus factor)

64Moderate
How it's scored
25.2/54Bus factor — 2 contributor(s) cover half of all commits
15.5/22.5Commit distribution — top contributor authored 31% of commits
13.5/13.5Contributor breadth — 37 contributors
10/10OpenSSF Scorecard: Contributors — project has 4 contributing companies or organizations
Inputs used
bus_factor2
contributors_sampled37
top_contributor_share0.31

Issue & PR responsiveness

82Excellent
How it's scored
32.4/42Issue resolution — 77% of issues closed
26/30PR acceptance — 92/106 decided PRs merged
13/13Newcomer PR acceptance — 1/1 first-time contributors' PRs merged in 30d
10.5/15OpenSSF Scorecard: Code-Review — Found 19/27 approved changesets -- score normalized to 7
Inputs used
merged_prs92
open_issues22
closed_issues74
prs_merged_7d0
prs_decided_7d0
prs_merged_30d6
prs_decided_30d6
issue_closed_ratio0.771
closed_unmerged_prs14
first_time_authors_30d1
first_time_prs_merged_30d1
first_time_prs_decided_30d1

Ownership & stewardship

79Good
How it's scored
30/30Ownership backing — organization-owned
20/20Verified domain
8.5/25Owner reach — 14 followers of frequency-chain
20.3/25Track record — 41 public repos, account ~4 yr old
Inputs used
followers14
owner_typeOrganization
is_verifiedyes
owner_loginfrequency-chain
public_repos41
account_age_days1,541

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 1 package(s) on npm
35/35Publish recency — latest publish 20 days ago
20/20Version history — 105 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packages@dsnp/parquetjs
ecosystemsnpm
any_deprecatedno
min_days_since_publish20

Engineering Quality

Are baseline engineering and documentation practices in place?

52Moderate · 19% of overall

Engineering practices

74Good
How it's scored
24/24CI workflows — 3 workflow(s)
24/24Tests present
16/16Linter config — eslint.config.mjs
0/9.6Pre-commit hooks
0/6.4.editorconfig
10/20OpenSSF Scorecard: CI-Tests — 15 out of 29 merged PRs checked by a CI test -- score normalized to 5
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configno

Documentation

20At Risk
How it's scored
0/30README
0/25Documentation directory
0/15Documentation / homepage site
0/10Repository description
10/10Topics — 4 topics
10/10Wiki
Inputs used
topicsbloom-filter, parquet, javascript, javascript-library
has_wikiyes
homepage—
docs_site—
has_readmeno
has_docs_dirno
has_descriptionno

Security

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

68Good · 16% of overall

Security posture

60Moderate
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
3.8/7.5Branch-Protection — branch protection is not maximal on development and all release branches
1.2/2.5CI-Tests — 15 out of 29 merged PRs checked by a CI test -- score normalized to 5
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
5.2/7.5Code-Review — Found 19/27 approved changesets -- score normalized to 7
2.5/2.5Contributors — project has 4 contributing companies or organizations
10/10Dangerous-Workflow — no dangerous workflow patterns detected
0/7.5Dependency-Update-Tool — no update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
6.8/7.5Maintained — 11 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 9
5/5Packaging — packaging workflow detected
1.5/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 3
0.5/5SAST — SAST tool is not run on all commits -- score normalized to 1
5/5Security-Policy — security policy file detected
0/7.5Signed-Releases — no data
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
6.8/7.5Vulnerabilities — 1 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated17
scorecard_versionv5.5.0
checks_inconclusive1
scorecard_aggregate6
Excluded from scoring (no data or not applicable): Signed-Releases. Remaining weights renormalized.

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisories — no direct dependency carries a known advisory
25/25Indirect dependencies free of known advisories — no indirect dependency carries a known advisory
0/40No advisories left outstanding — no advisory carries a publication date
Inputs used
sourceosv
advisories0
affected_packages0
assessed_packages63
unassessed_packages0
affected_by_severitynone
direct_affected_packages0
Excluded from scoring (no data or not applicable): No advisories left outstanding. Remaining weights renormalized. Matched the npm:@dsnp/parquetjs@1.9.3 runtime dependency closure — what installing the published package pulls in — 63 packages. 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.

81Excellent · 4% of overall

Agent context & guidance

85Excellent
How it's scored
45/45Agent instructions — AGENTS.md
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 93 of 97 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.959
agent_instruction_filesAGENTS.md
agent_instruction_max_bytes811

Verify loop (build / test / typecheck)

65Good
How it's scored
0/18One-command bootstrap
22/22Automated tests
11/11Lint / format config — eslint.config.mjs
11/11Static type checking — tsconfig.json
10/10Reproducible environment — lockfile
0/10Demonstrated agent practice — no agent-authored commits among the last 100
8/8Automated maintenance — 3 of the last 100 commits are automated dependency updates
3/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 3
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
toolchain_manifests—
dependency_bot_commit_share0.03

Code legibility for models

99Exceptional
How it's scored
45/45Type-checkable code — TypeScript (statically typed)
54.3/55Manageable file sizes — 1/75 source files over 60KB
Inputs used
primary_languageTypeScript
largest_source_bytes155,852
source_files_sampled75
oversized_source_files1

Machine-readable interfaces

100Exceptional
How it's scored
0/40API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software
0/20MCP server — not applicable to this kind of software
40/40Runnable examples — examples
Inputs used
example_dirsexamples
has_mcp_signalno
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

96GitHub stars
37contributors
13commits, last 12 months
20days since last push
34releases
2bus factor
22open issues
npmpackage ecosystems

Data collection warnings

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

More detail

Star and fork history 0 ★ / 34 ⇿
0Stars
34Forks
27Releases

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.

01325383432022-042024-062026-08
Major 0Minor 7Patch 20

Each point covers 4 days.

OpenSSF Scorecard 6.0 / 10
6.0aggregate

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 · 2026-09-17 00:26 UTC

10Binary-Artifactsno binaries found in the repo
5Branch-Protectionbranch protection is not maximal on development and all release branches
5CI-Tests15 out of 29 merged PRs checked by a CI test -- score normalized to 5
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
7Code-ReviewFound 19/27 approved changesets -- score normalized to 7
10Contributorsproject has 4 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
0Dependency-Update-Toolno update tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
9Maintained11 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 9
10Packagingpackaging workflow detected
3Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 3
1SASTSAST tool is not run on all commits -- score normalized to 1
10Security-Policysecurity policy file detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
9Vulnerabilities1 existing vulnerabilities detected
Direct dependencies 13
RegistryPackageVersion constraintManifest
npm@aws-sdk/client-s3^3.1092.0package.json
npm@types/node-int640.4.32package.json
npm@types/thrift0.10.17package.json
npm@zenfs/core2.3.8package.json
npmbrotli-wasm3.0.1package.json
npmbson6.10.4package.json
npmint531.0.0package.json
npmlong5.3.2package.json
npmnode-int640.4.0package.json
npmsnappyjs0.7.0package.json
npmthrift0.24.0package.json
npmvarint6.0.0package.json
npmxxhash-wasm1.1.0package.json
All dependencies 363

Full resolved dependency set from the GitHub dependency graph: 13 direct and 350 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
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npmgraphql16.14.2indirect
npmhas-flag4.0.0indirect
npmhas-property-descriptors1.0.2indirect
npmhas-symbols1.1.0indirect
npmhas-tostringtag1.0.2indirect
npmhasown2.0.4indirect
npmheaders-polyfill5.0.1indirect
npmieee7541.2.1indirect
npmignore5.3.2indirect
npmignore7.0.6indirect
npmimurmurhash0.1.4indirect
npminherits2.0.4indirect
npmis-arguments1.2.0indirect
npmis-callable1.2.7indirect
npmis-extglob2.1.1indirect
npmis-fullwidth-code-point3.0.0indirect
npmis-generator-function1.1.2indirect
npmis-glob4.0.3indirect
npmis-nan1.3.2indirect
npmis-node-process1.2.0indirect
npmis-path-inside3.0.3indirect
npmis-plain-obj2.1.0indirect
npmis-regex1.2.1indirect
npmis-typed-array1.1.15indirect
npmis-unicode-supported0.1.0indirect
npmisexe2.0.0indirect
npmisomorphic-ws4.0.1indirect
npmjs-yaml5.2.3indirect
npmjson-buffer3.0.1indirect
npmjson-schema-traverse0.4.1indirect
npmjson-stable-stringify-without-jsonify1.0.1indirect
npmjust-extend6.2.0indirect
npmkerium1.4.2indirect
npmkeyv4.5.4indirect
npmlevn0.4.1indirect
npmlocate-path6.0.0indirect
npmloupe3.2.1indirect
npmlru-cache11.5.2indirect
npmmath-intrinsics1.1.0indirect
npmmemium0.3.11indirect
npmminimatch10.2.6indirect
npmminipass7.1.3indirect
npmmocha12.0.0-rc.2indirect
npmms2.1.3indirect
npmmsw2.14.6indirect
npmmute-stream3.0.0indirect
npmnatural-compare1.4.0indirect
npmnise6.1.5indirect
npmobject-is1.1.6indirect
npmobject-keys1.1.1indirect
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npmpossible-typed-array-names1.1.0indirect
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npmprocess0.11.10indirect
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npmreadable-stream3.6.2indirect
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npmreaddirp5.1.1indirect
npmregenerator-runtime0.14.1indirect
npmrequire-directory2.1.1indirect
npmresolve-pkg-maps1.0.0indirect
npmrettime0.11.11indirect
npmsafe-buffer5.2.1indirect
npmsafe-regex-test1.1.0indirect
npmsemver7.8.5indirect
npmserialize-javascript7.1.0indirect
npmset-cookie-parser3.1.2indirect
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npmshebang-command2.0.0indirect
npmshebang-regex3.0.0indirect
npmsignal-exit4.1.0indirect
npmsinon18.0.1indirect
npmsinon22.1.0indirect
npmsinon-chai4.0.1indirect
npmstatuses2.0.2indirect
npmstream-browserify3.0.0indirect
npmstrict-event-emitter0.5.1indirect
npmstring-width4.2.3indirect
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npmstrip-ansi6.0.1indirect
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npmsupports-color7.2.0indirect
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npmtagged-tag1.0.0indirect
npmtinyglobby0.2.17indirect
npmtldts7.4.10indirect
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npmtough-cookie6.0.2indirect
npmts-api-utils2.5.0indirect
npmtslib2.8.1indirect
npmtsx4.21.0indirect
npmtype-check0.4.0indirect
npmtype-detect4.0.8indirect
npmtype-detect4.1.0indirect
npmtype-fest5.8.0indirect
npmtypescript5.9.3indirect
npmtypescript-eslint8.59.2indirect
npmundici-types7.18.2indirect
npmuntil-async3.0.2indirect
npmuri-js4.4.1indirect
npmutil0.12.5indirect
npmutil-deprecate1.0.2indirect
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npmuuid14.0.1indirect
npmwhich2.0.2indirect
npmwhich-typed-array1.1.22indirect
npmword-wrap1.2.5indirect
npmworkerpool10.0.3indirect
npmwrap-ansi7.0.0indirect
npmws8.21.3indirect
npmy18n5.0.8indirect
npmyargs17.7.3indirect
npmyargs-parser21.1.1indirect
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npmyocto-queue0.1.0indirect
Dependency advisories 0

Installing npm:@dsnp/parquetjs@1.9.3 pulls in 63 packages, direct and transitive: 0 carry known advisories, of which 0 are direct dependencies.

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.

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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.