Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-10-20 21:25 UTC

mathematic-inc / ts-japi

Zero-dependency TypeScript library for serializing data to the JSON:API specification with full type safety, relationships, links, and pagination

TypeScriptApache-2.0★ 236 stars⑂ 21 forkssince May 2020View on GitHub ↗
KindLibraryhow this is determined
#json-api#serialization#serializer#nodejs#pagination#relationships#rest-api#typescript#zero-dependencies

mathematic-inc/ts-japi holds a health index of 78 out of 100, placing it in the Good band. It scores highest on AI Readiness (74/100) and lowest on Sustainability & Governance (54/100). It was last updated 6 days ago. A single contributor accounts for most of its recent work.

78
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.

78
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 67 is calibrated to 78 on the published index scale (record calibration 2026-08-02).

Ownership

MathematicOrganization
49 followers21 public repossince Jul 2020

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
npmts-japi1.12.6255,5474240 days agojson-apiserializernormalizertypescript

Metrics by category

Vitality

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

73Good · 21% of overall

Development activity

67Good
How it's scored
36/36Push recency — last push 6 days ago
5.5/36Commit cadence — 8/52 weeks with commits
15.3/18Commit volume — 49 commits in the last year
10/10OpenSSF Scorecard: Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year49
human_commit_share0.9
days_since_last_push6
active_weeks_last_year8

Release discipline

83Excellent
How it's scored
27/27Ships releases — 23 releases published
36/36Release recency — latest release 40 days ago
19.8/27Release cadence — a release every ~97.1 days
0/10OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases.
Inputs used
releases_count23
latest_release_tagv1.12.6
releases_from_tagsno
days_since_latest_release40
mean_days_between_releases97.1

Community & Adoption

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

67Good · 17% of overall

Popularity & adoption

49Weak
How it's scored
38.5/60Stars — 236 stars
10.8/25Forks — 21 forks
0/15Watchers — 2 watchers
Inputs used
forks21
stars236
watchers2
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

70Good
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (Apache-2.0)
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges2
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_servicesshields.io
has_pull_request_templateno

Ecosystem adoption (downloads)

90Excellent
How it's scored
72.1/80Monthly downloads — 255,547 downloads/month across npm
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagests-japi
dependents—
ecosystemsnpm
total_downloads—
monthly_downloads255,547
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?

54Moderate · 23% of overall

Maintainer resilience (bus factor)

13Critical
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
0/22.5Commit distribution — top contributor authored 100% of commits
1.4/13.5Contributor breadth — 1 contributors
3/10OpenSSF Scorecard: Contributors — project has 1 contributing companies or organizations -- score normalized to 3
Inputs used
bus_factor1
contributors_sampled1
top_contributor_share1

Issue & PR responsiveness

57Moderate
How it's scored
0/42Issue resolution — no issues or no data
25.8/30PR acceptance — 91/106 decided PRs merged
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
0/15OpenSSF Scorecard: Code-Review — Found 0/9 approved changesets -- score normalized to 0
Inputs used
merged_prs91
open_issues0
closed_issues0
prs_merged_7d0
prs_decided_7d0
prs_merged_30d2
prs_decided_30d2
issue_closed_ratio—
closed_unmerged_prs15
first_time_authors_30d0
first_time_prs_merged_30d0
first_time_prs_decided_30d0
Excluded from scoring (no data or not applicable): Issue resolution, Newcomer PR acceptance. Remaining weights renormalized.

Ownership & stewardship

64Moderate
How it's scored
30/30Ownership backing — organization-owned
0/20Verified domain
12.2/25Owner reach — 49 followers of mathematic-inc
21.8/25Track record — 21 public repos, account ~6 yr old
Inputs used
followers49
owner_typeOrganization
is_verifiedno
owner_loginmathematic-inc
public_repos21
account_age_days2,289

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 1 package(s) on npm
35/35Publish recency — latest publish 40 days ago
20/20Version history — 42 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagests-japi
ecosystemsnpm
any_deprecatedno
min_days_since_publish40

Engineering Quality

Are baseline engineering and documentation practices in place?

71Good · 19% of overall

Engineering practices

68Good
How it's scored
24/24CI workflows — 9 workflow(s)
24/24Tests present
0/16Linter config
0/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests — 19 out of 19 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configno
has_precommit_configno

Documentation

75Good
How it's scored
30/30README
25/25Documentation directory
0/15Documentation / homepage site
10/10Repository description
10/10Topics — 9 topics
0/10Wiki
Inputs used
topicsjson-api, serialization, serializer, nodejs, pagination, relationships, rest-api, typescript, zero-dependencies
has_wikino
homepage—
docs_site—
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

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

71Good · 16% of overall

Security posture

64Moderate
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
2.2/7.5Branch-Protection — branch protection is not maximal on development and all release branches
2.5/2.5CI-Tests — 19 out of 19 merged PRs checked by a CI test -- score normalized to 10
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
0/7.5Code-Review — Found 0/9 approved changesets -- score normalized to 0
0.8/2.5Contributors — project has 1 contributing companies or organizations -- score normalized to 3
10/10Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
7.5/7.5Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
5/5Packaging — packaging workflow detected
5/5Pinned-Dependencies — all dependencies are pinned
5/5SAST — SAST tool is run on all commits
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — Project has not signed or included provenance with any releases.
6/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
5.2/7.5Vulnerabilities — 3 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated18
scorecard_versionv5.5.0
checks_inconclusive0
scorecard_aggregate6.4

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
advisories3
affected_packages1
assessed_packages145
unassessed_packages0
affected_by_severityhigh 1
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 145 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.

74Good · 4% of overall

Agent context & guidance

40Weak
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 85 of 90 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.944
agent_instruction_files—
agent_instruction_max_bytes—

Verify loop (build / test / typecheck)

79Good
How it's scored
18/18One-command bootstrap — Makefile, mise.toml
22/22Automated tests
0/11Lint / format config
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 — 10 of the last 100 commits are automated dependency updates
10/10OpenSSF Scorecard: Pinned-Dependencies — all dependencies are pinned
Inputs used
has_nixno
has_testsyes
lockfilespnpm-lock.yaml
has_dockerfileno
typed_languageyes
bootstrap_filesMakefile, mise.toml
has_devcontainerno
has_linter_configno
typecheck_configstsconfig.json
agent_commit_share0
toolchain_manifests—
dependency_bot_commit_share0.1

Code legibility for models

100Exceptional
How it's scored
45/45Type-checkable code — TypeScript (statically typed)
55/55Manageable file sizes — 0/69 source files over 60KB
Inputs used
primary_languageTypeScript
largest_source_bytes20,358
source_files_sampled69
oversized_source_files0

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

236GitHub stars
1contributors
49commits, last 12 months
6days since last push
23releases
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 ★ / 21 ⇿
0Stars
21Forks
20Releases

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.

048121620242122020-072023-072026-08
Major 0Minor 7Patch 13

Each point covers 6 days.

OpenSSF Scorecard 6.4 / 10
6.4aggregate

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 · 2026-10-20 21:25 UTC

10Binary-Artifactsno binaries found in the repo
3Branch-Protectionbranch protection is not maximal on development and all release branches
10CI-Tests19 out of 19 merged PRs checked by a CI test -- score normalized to 10
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
0Code-ReviewFound 0/9 approved changesets -- score normalized to 0
3Contributorsproject has 1 contributing companies or organizations -- score normalized to 3
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
10Packagingpackaging workflow detected
10Pinned-Dependenciesall dependencies are pinned
10SASTSAST tool is run on all commits
0Security-Policysecurity policy file not detected
0Signed-ReleasesProject has not signed or included provenance with any releases.
8Token-Permissionsdetected GitHub workflow tokens with excessive permissions
7Vulnerabilities3 existing vulnerabilities detected
All dependencies 145

Full resolved dependency set from the GitHub dependency graph: 0 direct and 145 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
npm@babel/helper-string-parser7.29.7indirect
npm@babel/helper-validator-identifier7.29.7indirect
npm@babel/parser7.29.8indirect
npm@babel/types7.29.8indirect
npm@bcoe/v8-coverage1.0.2indirect
npm@esbuild/aix-ppc640.28.2indirect
npm@esbuild/android-arm0.28.2indirect
npm@esbuild/android-arm640.28.2indirect
npm@esbuild/android-x640.28.2indirect
npm@esbuild/darwin-arm640.28.2indirect
npm@esbuild/darwin-x640.28.2indirect
npm@esbuild/freebsd-arm640.28.2indirect
npm@esbuild/freebsd-x640.28.2indirect
npm@esbuild/linux-arm0.28.2indirect
npm@esbuild/linux-arm640.28.2indirect
npm@esbuild/linux-ia320.28.2indirect
npm@esbuild/linux-loong640.28.2indirect
npm@esbuild/linux-mips64el0.28.2indirect
npm@esbuild/linux-ppc640.28.2indirect
npm@esbuild/linux-riscv640.28.2indirect
npm@esbuild/linux-s390x0.28.2indirect
npm@esbuild/linux-x640.28.2indirect
npm@esbuild/netbsd-arm640.28.2indirect
npm@esbuild/netbsd-x640.28.2indirect
npm@esbuild/openbsd-arm640.28.2indirect
npm@esbuild/openbsd-x640.28.2indirect
npm@esbuild/openharmony-arm640.28.2indirect
npm@esbuild/sunos-x640.28.2indirect
npm@esbuild/win32-arm640.28.2indirect
npm@esbuild/win32-ia320.28.2indirect
npm@esbuild/win32-x640.28.2indirect
npm@jridgewell/resolve-uri3.1.2indirect
npm@jridgewell/sourcemap-codec1.5.5indirect
npm@jridgewell/trace-mapping0.3.31indirect
npm@oxc-project/types0.146.0indirect
npm@rolldown/binding-android-arm-eabi1.2.5indirect
npm@rolldown/binding-android-arm641.2.5indirect
npm@rolldown/binding-darwin-arm641.2.5indirect
npm@rolldown/binding-darwin-x641.2.5indirect
npm@rolldown/binding-freebsd-x641.2.5indirect
npm@rolldown/binding-linux-arm-gnueabihf1.2.5indirect
npm@rolldown/binding-linux-arm64-gnu1.2.5indirect
npm@rolldown/binding-linux-arm64-musl1.2.5indirect
npm@rolldown/binding-linux-ppc64-gnu1.2.5indirect
npm@rolldown/binding-linux-s390x-gnu1.2.5indirect
npm@rolldown/binding-linux-x64-gnu1.2.5indirect
npm@rolldown/binding-linux-x64-musl1.2.5indirect
npm@rolldown/binding-openharmony-arm641.2.5indirect
npm@rolldown/binding-win32-arm64-msvc1.2.5indirect
npm@rolldown/binding-win32-x64-msvc1.2.5indirect
npm@rolldown/pluginutils1.0.1indirect
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npm@types/node26.6.4indirect
npm@typescript/typescript-aix-ppc647.0.2indirect
npm@typescript/typescript-darwin-arm647.0.2indirect
npm@typescript/typescript-darwin-x647.0.2indirect
npm@typescript/typescript-freebsd-arm647.0.2indirect
npm@typescript/typescript-freebsd-x647.0.2indirect
npm@typescript/typescript-linux-arm7.0.2indirect
npm@typescript/typescript-linux-arm647.0.2indirect
npm@typescript/typescript-linux-loong647.0.2indirect
npm@typescript/typescript-linux-mips64el7.0.2indirect
npm@typescript/typescript-linux-ppc647.0.2indirect
npm@typescript/typescript-linux-riscv647.0.2indirect
npm@typescript/typescript-linux-s390x7.0.2indirect
npm@typescript/typescript-linux-x647.0.2indirect
npm@typescript/typescript-netbsd-arm647.0.2indirect
npm@typescript/typescript-netbsd-x647.0.2indirect
npm@typescript/typescript-openbsd-arm647.0.2indirect
npm@typescript/typescript-openbsd-x647.0.2indirect
npm@typescript/typescript-sunos-x647.0.2indirect
npm@typescript/typescript-win32-arm647.0.2indirect
npm@typescript/typescript-win32-x647.0.2indirect
npm@vitest/coverage-v84.1.11indirect
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npm@vitest/mocker4.1.11indirect
npm@vitest/pretty-format4.1.11indirect
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npm@vitest/snapshot4.1.11indirect
npm@vitest/spy4.1.11indirect
npm@vitest/utils4.1.11indirect
npmassertion-error2.0.1indirect
npmast-v8-to-istanbul1.0.5indirect
npmbenchmark2.1.4indirect
npmchai6.2.2indirect
npmconvert-source-map2.0.0indirect
npmdetect-libc2.1.2indirect
npmes-module-lexer2.3.2indirect
npmesbuild0.28.2indirect
npmestree-walker3.0.3indirect
npmexpect-type1.4.0indirect
npmfdir6.5.0indirect
npmfsevents2.3.3indirect
npmhas-flag4.0.0indirect
npmhtml-escaper2.0.2indirect
npmistanbul-lib-coverage3.2.2indirect
npmistanbul-lib-report3.0.1indirect
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npmjs-tokens10.0.0indirect
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npmlightningcss-linux-x64-musl1.33.0indirect
npmlightningcss-win32-arm64-msvc1.33.0indirect
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npmlodash4.18.1indirect
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npmmagicast0.5.4indirect
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npmnanoid3.3.18indirect
npmobug2.1.4indirect
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npmrolldown1.2.5indirect
npmsemver7.8.5indirect
npmsiginfo2.0.0indirect
npmsource-map-js1.2.2indirect
npmstackback0.0.2indirect
npmstd-env4.2.0indirect
npmsupports-color7.2.0indirect
npmtinybench2.9.0indirect
npmtinyexec1.3.0indirect
npmtinyglobby0.2.17indirect
npmtinyrainbow3.1.1indirect
npmtsx4.23.15indirect
npmtypescript7.0.2indirect
npmundici-types8.9.0indirect
npmvite8.2.2indirect
npmvitest4.1.11indirect
npmwhy-is-node-running2.3.0indirect
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Dependency advisories 1

This repository publishes no package the index resolves, so its own dependency graph was assessed — 145 packages, which also include development and test pins that never ship: 1 carry known advisories, of which 0 are direct.

PackageVersionRelationSeverityAdvisoriesFixed in
vite8.2.2indirecthigh38.3.3

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.

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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.