Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-20 02:39 UTC

yukinarit / pyserde

Yet another serialization library on top of dataclasses, inspired by serde-rs.

PythonMIT★ 851 stars⑂ 63 forkssince Dec 2018View on GitHub ↗
KindLibraryCommand-line toolhow this is determined

yukinarit/pyserde holds a health index of 34 out of 100, placing it in the At Risk band. It scores highest on Engineering Quality (94/100) and lowest on Security (35/100). It was last updated today. 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 74 is calibrated to 88 on the published index scale (record calibration 2026-08-02). High-Risk Jurisdiction Policy applies a 50% multiplier to weighted overall health and gives it an At Risk ceiling of 34.

Ownership

yukiPersonal account
176 followers40 public repossince Sep 2012

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 publish
PyPIpyserde0.33.1939,8831180 days ago

Metrics by category

Vitality

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

91Excellent · 21% of overall
How it's scored
36/36Push recencylast push 0 days ago
20.8/36Commit cadence30/52 weeks with commits
18/18Commit volume105 commits in the last year
10/10OpenSSF Scorecard: Maintained30 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year105
human_commit_share0.63
days_since_last_push0
active_weeks_last_year30

Release discipline

100Exceptional
How it's scored
27/27Ships releases96 releases published
36/36Release recencylatest release 0 days ago
27/27Release cadencea release every ~11.5 days
0/10OpenSSF Scorecard: Signed-Releasesno data
Inputs used
releases_count96
latest_release_tagv0.33.1
releases_from_tagsno
days_since_latest_release0
mean_days_between_releases11.5
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?

76Good · 17% of overall
How it's scored
47.5/60Stars851 stars
14.9/25Forks63 forks
4.7/15Watchers8 watchers
Inputs used
forks63
stars851
watchers8
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
22.5/22.5Licenserecognized license (MIT)
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges3
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_servicesgithub.com, shields.io
has_pull_request_templateno
How it's scored
79.6/80Monthly downloads939,883 downloads/month across pypi
0/20Registry dependentsnot reported by this ecosystem
Inputs used
packagespyserde
dependents
ecosystemspypi
total_downloads
monthly_downloads939,883
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?

69Good · 23% of overall
How it's scored
9/54Bus factor1 contributor(s) cover half of all commits
5.1/22.5Commit distributiontop contributor authored 77% of commits
13.5/13.5Contributor breadth47 contributors
10/10OpenSSF Scorecard: Contributorsproject has 22 contributing companies or organizations
Inputs used
bus_factor1
contributors_sampled47
top_contributor_share0.772
How it's scored
39.1/42Issue resolution93% of issues closed
27.4/30PR acceptance500/548 decided PRs merged
0/13Newcomer PR acceptanceno first-time contributor's PR decided in 30d
10.5/15OpenSSF Scorecard: Code-ReviewFound 12/17 approved changesets -- score normalized to 7
Inputs used
merged_prs500
open_issues16
closed_issues212
prs_merged_7d6
prs_decided_7d6
prs_merged_30d7
prs_decided_30d7
issue_closed_ratio0.93
closed_unmerged_prs48
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 backingpersonal (user) account
0/20Verified domainnot applicable to user accounts
16.2/25Owner reach176 followers of yukinarit
23.7/25Track record40 public repos, account ~14 yr old
Inputs used
followers176
owner_typeUser
is_verified
owner_loginyukinarit
public_repos40
account_age_days5,118
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable1 package(s) on pypi
35/35Publish recencylatest publish 0 days ago
20/20Version history118 published versions
20/20Not deprecatedactive, not deprecated or yanked
Inputs used
packagespyserde
ecosystemspypi
any_deprecatedno
min_days_since_publish0

Engineering Quality

Are baseline engineering and documentation practices in place?

94Exceptional · 19% of overall
How it's scored
24/24CI workflows4 workflow(s)
24/24Tests present
16/16Linter configpyproject.toml ([tool.ruff], [tool.black]), setup.cfg ([flake8], [pycodestyle])
9.6/9.6Pre-commit hooks
0/6.4.editorconfig
16/20OpenSSF Scorecard: CI-Tests26 out of 30 merged PRs checked by a CI test -- score normalized to 8
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configyes

Documentation

100Exceptional
How it's scored
30/30README
25/25Documentation directory
15/15Documentation / homepage sitehttps://yukinarit.github.io/pyserde
10/10Repository description
10/10Topics9 topics
10/10Wiki
Inputs used
topicsdataclasses, serialization, python, msgpack, json, yaml, toml, typing, serde
has_wikiyes
homepagehttps://yukinarit.github.io/pyserde
docs_sitehttps://yukinarit.github.io/pyserde
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

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

35Weak · 16% of overall
How it's scored
7.5/7.5Binary-Artifactsno binaries found in the repo
0/7.5Branch-Protectionno data
2/2.5CI-Tests26 out of 30 merged PRs checked by a CI test -- score normalized to 8
0/2.5CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
5.2/7.5Code-ReviewFound 12/17 approved changesets -- score normalized to 7
2.5/2.5Contributorsproject has 22 contributing companies or organizations
10/10Dangerous-Workflowno dangerous workflow patterns detected
7.5/7.5Dependency-Update-Toolupdate tool detected
0/5Fuzzingproject is not fuzzed
2.5/2.5Licenselicense file detected
7.5/7.5Maintained30 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10
0/5Packagingno data
0/5Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0/5SASTSAST tool is not run on all commits -- score normalized to 0
0/5Security-Policysecurity policy file not detected
0/7.5Signed-Releasesno data
0/7.5Token-Permissionsdetected GitHub workflow tokens with excessive permissions
5.2/7.5Vulnerabilities3 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated15
scorecard_versionv5.5.0
checks_inconclusive3
scorecard_aggregate5.9
high_risk_jurisdiction_cap34
high_risk_jurisdiction_multiplier50
security_posture_after_multiplier30
security_posture_before_jurisdiction59
Excluded from scoring (no data or not applicable): Branch-Protection, Packaging, Signed-Releases. Remaining weights renormalized. High-Risk Jurisdiction Policy applies a 50% multiplier and gives Security posture an At risk ceiling of 34.
How it's scored
11.9/35Direct dependencies free of known advisories2 affected: click 8.3.1 (high 7.2), numpy 1.17.2 (high 7.5)
0/25Indirect dependencies free of known advisoriestransitive set not separable from development and test dependencies in this scope
29.3/40No advisories left outstanding2 advisory-carrying package(s) unaddressed past 90 days; oldest published 1,737 days ago
Inputs used
sourceosv
advisories15
affected_packages5
assessed_packages122
unassessed_packages27
affected_by_severitycritical 1, high 3, low 1
direct_affected_packages2
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories. Remaining weights renormalized. Matched 122 resolved dependencies against OSV. 27 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.

75Good · 4% of overall
How it's scored
0/45Agent instructionsno CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
40/40Legible commit history63 of 63 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url
legible_history_share1
agent_instruction_files
agent_instruction_max_bytes
How it's scored
18/18One-command bootstrapMakefile
22/22Automated tests
11/11Lint / format configpyproject.toml ([tool.ruff], [tool.black]), setup.cfg ([flake8], [pycodestyle])
11/11Static type checkingserde/py.typed
10/10Reproducible environmentDockerfile, lockfile
10/10Demonstrated agent practice7 of the last 100 commits agent-authored or agent-credited
8/8Automated maintenance37 of the last 100 commits are automated dependency updates
0/10OpenSSF Scorecard: Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfilesuv.lock
has_dockerfileyes
typed_languageno
bootstrap_filesMakefile
has_devcontainerno
has_linter_configyes
typecheck_configsserde/py.typed
agent_commit_share0.07
toolchain_manifests
dependency_bot_commit_share0.37
How it's scored
27/45Type-checkable codePython with type-check config (serde/py.typed)
55/55Manageable file sizes0/137 source files over 60KB
Inputs used
primary_languagePython
largest_source_bytes59,246
source_files_sampled137
oversized_source_files0
How it's scored
40/40API schema (OpenAPI/GraphQL/proto)examples/swagger.yml
0/20MCP servernot applicable to this kind of software
40/40Runnable examplesexamples
Inputs used
example_dirsexamples
has_mcp_signalno
api_schema_filesexamples/swagger.yml
interfaces_expected_of
Excluded from scoring (no data or not applicable): MCP server. Remaining weights renormalized.

Key facts

851GitHub stars
47contributors
105commits, last 12 months
0days since last push
96releases
1bus factor
16open issues
PyPIpackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • Could not fetch pypi package 'pyserde_bench' from its registry
  • deps.dev does not index pypi:pyserde@0.33.1; advisories assessed against the repository dependency graph instead

More detail

Star and fork history 0 ★ / 63 ⇿
0Stars
63Forks
91Releases

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.

01325385063756322020-072023-082026-08
Major 0Minor 29Patch 62

Each point covers 6 days.

OpenSSF Scorecard 5.9 / 10
5.9aggregate

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 · 2026-09-20 02:39 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
8CI-Tests26 out of 30 merged PRs checked by a CI test -- score normalized to 8
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
7Code-ReviewFound 12/17 approved changesets -- score normalized to 7
10Contributorsproject has 22 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10
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
0Security-Policysecurity policy file not detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
7Vulnerabilities3 existing vulnerabilities detected
Direct dependencies 16
RegistryPackageVersion constraintManifest
PyPIclickbench/pyproject.toml
PyPIpyserdebench/pyproject.toml
PyPIdacitebench/pyproject.toml
PyPImashumaro>=3.13,<4.0bench/pyproject.toml
PyPImarshmallow>=4.0,<5.0bench/pyproject.toml
PyPIattrs>=24.3,<25.0bench/pyproject.toml
PyPIcattrs>=25.1,<26.0bench/pyproject.toml
PyPIseabornbench/pyproject.toml
PyPImatplotlibbench/pyproject.toml
PyPInumpybench/pyproject.toml
PyPIpydantic>=2.11.7,<3.0bench/pyproject.toml
PyPItyping_extensions>=4.13.0,<4.17.0pyproject.toml
PyPIcasefypyproject.toml
PyPIjinja2pyproject.toml
PyPIplum-dispatch>=2.3pyproject.toml
PyPIbeartype>=0.18.4pyproject.toml
All dependencies 149

Full resolved dependency set from the GitHub dependency graph: 27 direct and 122 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
PyPIattrsdirect
PyPIattrs24.3.0direct
PyPIbeartype0.22.6direct
PyPIcasefy1.1.0direct
PyPIcattrsdirect
PyPIcattrs25.2.0direct
PyPIclickdirect
PyPIclick8.3.1direct
PyPIdacitedirect
PyPIdacite1.9.2direct
PyPIjinja2direct
PyPIjinja23.1.6direct
PyPImarshmallowdirect
PyPImarshmallow4.1.2direct
PyPImashumarodirect
PyPImashumaro3.16direct
PyPImatplotlib3.1.1direct
PyPImatplotlib3.10.7direct
PyPInumpy1.17.2direct
PyPInumpy2.2.6direct
PyPInumpy2.3.5direct
PyPIplum-dispatch2.6.0direct
PyPIpydantic2.11.10direct
PyPIseaborn0.13.2direct
PyPIseaborn0.9.0direct
PyPItyping-extensions4.12.2direct
PyPItyping-extensions4.15.0direct
PyPIannotated-types0.7.0indirect
PyPIbabel2.17.0indirect
PyPIbackports-datetime-fromisoformat2.0.3indirect
PyPIbackrefs6.1indirect
PyPIblack19.3b0indirect
PyPIblack26.5.1indirect
PyPIcertifi2026.1.4indirect
PyPIcfgv3.5.0indirect
PyPIcharset-normalizer3.4.4indirect
PyPIcolorama0.4.6indirect
PyPIcontourpy1.3.2indirect
PyPIcontourpy1.3.3indirect
PyPIcoverageindirect
PyPIcoverage4.5.4indirect
PyPIcycler0.12.1indirect
PyPIdataclassesindirect
PyPIdistlib0.4.0indirect
PyPIdocopt0.6.2indirect
PyPIenvclasses0.2.1indirect
PyPIenvclasses0.3.1indirect
PyPIexceptiongroup1.3.1indirect
PyPIexecnet2.1.2indirect
PyPIfilelock3.20.3indirect
PyPIflake8indirect
PyPIflake87.3.0indirect
PyPIflaskindirect
PyPIfonttools4.60.2indirect
PyPIghp-import2.1.0indirect
PyPIgreenlet3.2.4indirect
PyPIgriffe1.15.0indirect
PyPIidentify2.6.15indirect
PyPIidna3.15indirect
PyPIimportlib-metadata8.7.1indirect
PyPIimportlib-resources6.5.2indirect
PyPIiniconfig2.3.0indirect
PyPIisort4.3.21indirect
PyPIjaxtyping0.3.9indirect
PyPIjedi0.19.2indirect
PyPIkiwisolver1.4.9indirect
PyPIlibrt0.7.3indirect
PyPImarkdown3.10.1indirect
PyPImarkdown-it-py4.0.0indirect
PyPImarkupsafe3.0.3indirect
PyPImccabe0.7.0indirect
PyPImdurl0.1.2indirect
PyPImergedeep1.3.4indirect
PyPImike2.1.3indirect
PyPImkdocs1.6.1indirect
PyPImkdocs-autorefs1.4.3indirect
PyPImkdocs-get-deps0.2.0indirect
PyPImkdocs-material9.7.7indirect
PyPImkdocs-material-extensions1.3.1indirect
PyPImkdocs-static-i18n1.3.0indirect
PyPImkdocstrings1.0.2indirect
PyPImkdocstrings-python2.0.1indirect
PyPImore-itertoolsindirect
PyPImore-itertools10.5.0indirect
PyPImsgpackindirect
PyPImsgpack1.1.2indirect
PyPImsgpack-types0.5.0indirect
PyPImypyindirect
PyPImypy0.782indirect
PyPImypy1.19.1indirect
PyPImypy-extensions1.1.0indirect
PyPInodeenv1.9.1indirect
PyPIorjson3.11.6indirect
PyPIpackaging25.0indirect
PyPIpaginate0.5.7indirect
PyPIpandas2.3.3indirect
PyPIparso0.8.5indirect
PyPIpathspec1.0.4indirect
PyPIpdoc3indirect
PyPIpillow12.3.0indirect
PyPIplatformdirs4.5.0indirect
PyPIpluggy1.6.0indirect
PyPIpre-commitindirect
PyPIpre-commit4.6.2indirect
PyPIpycodestyle2.14.0indirect
PyPIpydantic-core2.33.2indirect
PyPIpyflakes3.4.0indirect
PyPIpygments2.19.2indirect
PyPIpymdown-extensions11.0.1indirect
PyPIpyparsing3.2.5indirect
PyPIpyparsing3.3.2indirect
PyPIpyright1.1.410indirect
PyPIpyserde-bench0.1.0indirect
PyPIpytestindirect
PyPIpytest9.0.3indirect
PyPIpytest-covindirect
PyPIpytest-flake8indirect
PyPIpytest-flake81.3.0indirect
PyPIpytest-watchindirect
PyPIpytest-watch4.2.0indirect
PyPIpytest-xdist3.8.0indirect
PyPIpython-dateutil2.9.0.post0indirect
PyPIpytokens0.4.1indirect
PyPIpytomlindirect
PyPIpytz2025.2indirect
PyPIpyyamlindirect
PyPIpyyaml6.0.3indirect
PyPIpyyaml-env-tag1.1indirect
PyPIrequestsindirect
PyPIrequests2.33.0indirect
PyPIrich14.2.0indirect
PyPIruff0.15.9indirect
PyPIsix1.17.0indirect
PyPIsqlalchemy2.0.44indirect
PyPIstringcaseindirect
PyPItomlindirect
PyPItomli-w1.2.0indirect
PyPItwineindirect
PyPItypes-pyyaml6.0.12.20250915indirect
PyPItyping-inspectindirect
PyPItyping-inspect0.9.0indirect
PyPItyping-inspection0.4.2indirect
PyPItzdata2025.2indirect
PyPIurllib32.7.0indirect
PyPIverspec0.1.0indirect
PyPIvirtualenv20.36.1indirect
PyPIwadler-lindig0.1.7indirect
PyPIwatchdog6.0.0indirect
PyPIzipp3.23.0indirect
Dependency advisories 5

This repository publishes no package the index resolves, so its own dependency graph was assessed — 122 packages, which also include development and test pins that never ship: 5 carry known advisories, of which 2 are direct. 27 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list.

PackageVersionRelationSeverityAdvisoriesFixed in
black19.3b0indirectcritical426.3.1
click8.3.1directhigh18.3.3
numpy1.17.2directhigh61.22
msgpack1.1.2indirecthigh21.2.1
pygments2.19.2indirectlow22.20.0

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 statisticsPyPI.