Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-08-24 08:41 UTC

jsonjoy-com / json-pack

Fastest JSON serialization in native JavaScript. Works in browser and Node.js

TypeScriptApache-2.0★ 24 stars⑂ 1 forksince Apr 2024View on GitHub ↗
KindLibraryhow this is determined
#amazon-ion#bencode#bencode-parser#bson#cbor#dag-cbor#ejson#json#msgpack#redis#resp3#ubjson#dag-json

jsonjoy-com/json-pack holds a health index of 53 out of 100, placing it in the Moderate band. It scores highest on Engineering Quality (84/100) and lowest on Community & Adoption (35/100). It was last updated 312 days ago. A single contributor accounts for most of its recent work.

53
overall / 100
Moderate

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.

53
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).

Ownership

jsonjoy.comOrganization
12 followers11 public repossince Apr 2024

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
npm@jsonjoy.com/json-packpoints to another repo — not scored18.28.097,799,6496282 days agojsoncbordag-jsondag-cborpackmsgpackmessagepackjson-packubjsonbencodeionamazon-ionbsonrespresp3redisresp-3resp2

Metrics by category

Vitality

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

46Weak · 21% of overall

Development activity

24At Risk
How it's scored
3.6/36Push recency — last push 312 days ago
2.8/36Commit cadence — 4/52 weeks with commits
18/18Commit volume — 162 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_year162
human_commit_share1
days_since_last_push312
active_weeks_last_year4

Release discipline

78Good
How it's scored
27/27Ships releases — 29 releases published
16.2/36Release recency — latest release 312 days ago
27/27Release cadence — a release every ~3.2 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count29
latest_release_tagv1.21.0
releases_from_tagsno
days_since_latest_release312
mean_days_between_releases3.2
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?

35Weak · 17% of overall

Popularity & adoption

22At Risk
How it's scored
22.1/60Stars — 24 stars
0/25Forks — 1 forks
0/15Watchers — 0 watchers
Inputs used
forks1
stars24
watchers0
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

50Moderate
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (Apache-2.0)
0/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges0
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_services—
has_pull_request_templateno

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

40Weak · 23% of overall

Maintainer resilience (bus factor)

12Critical
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
0.1/22.5Commit distribution — top contributor authored 100% of commits
2.7/13.5Contributor breadth — 2 contributors
0/10OpenSSF Scorecard: Contributors — project has 0 contributing companies or organizations -- score normalized to 0
Inputs used
bus_factor1
contributors_sampled2
top_contributor_share0.995

Issue & PR responsiveness

62Moderate
How it's scored
23.6/42Issue resolution — 56% of issues closed
30/30PR acceptance — 27/27 decided PRs merged
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
0/15OpenSSF Scorecard: Code-Review — Found 0/1 approved changesets -- score normalized to 0
Inputs used
merged_prs27
open_issues14
closed_issues18
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio0.562
closed_unmerged_prs0
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.

Ownership & stewardship

51Moderate
How it's scored
30/30Ownership backing — organization-owned
0/20Verified domain
8/25Owner reach — 12 followers of jsonjoy-com
12.6/25Track record — 11 public repos, account ~2 yr old
Inputs used
followers12
owner_typeOrganization
is_verifiedno
owner_loginjsonjoy-com
public_repos11
account_age_days868

Engineering Quality

Are baseline engineering and documentation practices in place?

84Excellent · 19% of overall

Engineering practices

84Excellent
How it's scored
24/24CI workflows — 4 workflow(s)
24/24Tests present
16/16Linter config — package.json ("prettier")
0/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests — 1 out of 1 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configno

Documentation

85Excellent
How it's scored
30/30README
25/25Documentation directory
0/15Documentation / homepage site
10/10Repository description
10/10Topics — 13 topics
10/10Wiki
Inputs used
topicsamazon-ion, bencode, bencode-parser, bson, cbor, dag-cbor, ejson, json, msgpack, redis, resp3, ubjson, dag-json
has_wikiyes
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?

50Moderate · 16% of overall

Security posture

38Weak
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — branch protection not enabled on development/release branches
2.5/2.5CI-Tests — 1 out of 1 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 0/1 approved changesets -- score normalized to 0
0/2.5Contributors — project has 0 contributing companies or organizations -- score normalized to 0
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
0/7.5Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
0/5Packaging — no data
0/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
5/5Security-Policy — security policy file detected
0/7.5Signed-Releases — no data
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
0/7.5Vulnerabilities — 55 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated16
scorecard_versionv5.5.0
checks_inconclusive2
scorecard_aggregate3.8
Excluded from scoring (no data or not applicable): Packaging, 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_packages22
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:@jsonjoy.com/json-pack@18.28.0 runtime dependency closure — what installing the published package pulls in — 22 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.

73Good · 4% of overall

Agent context & guidance

85Excellent
How it's scored
45/45Agent instructions — .github/copilot-instructions.md
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 98 of 100 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.98
agent_instruction_files.github/copilot-instructions.md
agent_instruction_max_bytes226

Verify loop (build / test / typecheck)

54Moderate
How it's scored
0/18One-command bootstrap
22/22Automated tests
11/11Lint / format config — package.json ("prettier")
11/11Static type checking — tsconfig.json
10/10Reproducible environment — lockfile
0/10Demonstrated agent practice — no agent-authored commits among the last 100
0/8Automated maintenance — no automated dependency updates observed
0/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfilesyarn.lock
has_dockerfileno
typed_languageyes
bootstrap_files—
has_devcontainerno
has_linter_configyes
typecheck_configstsconfig.json
agent_commit_share0
toolchain_manifests—
dependency_bot_commit_share0

Code legibility for models

99Exceptional
How it's scored
45/45Type-checkable code — TypeScript (statically typed)
54.2/55Manageable file sizes — 5/365 source files over 60KB
Inputs used
primary_languageTypeScript
largest_source_bytes110,086
source_files_sampled365
oversized_source_files5

Key facts

24GitHub stars
2contributors
162commits, last 12 months
312days since last push
29releases
1bus factor
14open issues
npmpackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • npm package '@jsonjoy.com/json-pack' points at a different repository (https://github.com/streamich/json-joy); excluded from ecosystem scoring

More detail

OpenSSF Scorecard 3.8 / 10
3.8aggregate

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 · 2026-08-24 08:40 UTC

10Binary-Artifactsno binaries found in the repo
0Branch-Protectionbranch protection not enabled on development/release branches
10CI-Tests1 out of 1 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 0/1 approved changesets -- score normalized to 0
0Contributorsproject has 0 contributing companies or organizations -- score normalized to 0
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
0Maintained0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
n/aPackagingpackaging workflow not detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTSAST tool is not run on all commits -- score normalized to 0
10Security-Policysecurity policy file detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
0Vulnerabilities55 existing vulnerabilities detected
Direct dependencies 8
RegistryPackageVersion constraintManifest
npm@jsonjoy.com/base64^1.1.2package.json
npm@jsonjoy.com/buffers^1.2.0package.json
npm@jsonjoy.com/codegen^1.0.0package.json
npm@jsonjoy.com/json-pointer^1.0.2package.json
npm@jsonjoy.com/util^1.9.0package.json
npmhyperdyperid^1.2.0package.json
npmthingies^2.5.0package.json
npmtree-dump^1.1.0package.json
All dependencies 480

Full resolved dependency set from the GitHub dependency graph: 9 direct and 471 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
npm@jsonjoy.com/base641.1.2direct
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npm@jsonjoy.com/buffers1.2.0direct
npm@jsonjoy.com/codegen1.0.0direct
npm@jsonjoy.com/json-pointer1.0.2direct
npm@jsonjoy.com/util1.9.0direct
npmhyperdyperid1.2.0direct
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npmtree-dump1.1.0direct
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npm@babel/helper-module-imports7.24.3indirect
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npm@babel/helper-plugin-utils7.24.0indirect
npm@babel/helper-simple-access7.22.5indirect
npm@babel/helper-split-export-declaration7.22.6indirect
npm@babel/helper-string-parser7.24.1indirect
npm@babel/helper-validator-identifier7.22.20indirect
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npmjs-base643.7.7indirect
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Dependency advisories 0

Installing npm:@jsonjoy.com/json-pack@18.28.0 pulls in 22 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.