Public recordExcellent
Software health reportschema 0.11.0 · metrics 2.10.0 · 2026-07-17 00:35 UTC
CycloneDX / cyclonedx-python-lib
Functionality and DataModels of OWASP CycloneDX for Python
CycloneDX/cyclonedx-python-lib holds a health index of 90 out of 100, placing it in the Excellent band. It scores highest on Engineering Quality (96/100) and lowest on Security (33/100). It was last updated 5 days ago. 2 contributors account for most of its recent work.
90
overall / 100Software 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.
90
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)
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 76 is calibrated to 90 on the published index scale (record calibration 2026-08-02).
Ownership
CycloneDX BOM StandardOrganization
885 followers66 public repossince May 2017
This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.
Package ecosystems
| Registry | Package | Version | Downloads / mo | Versions | Last publish | Tags |
|---|---|---|---|---|---|---|
| PyPI | cyclonedx-python-lib | 11.11.0 | - | 157 | 29 days ago | cyclonedxlibraryowaspscasoftware-bill-of-materialsbill-of-materialsbomsbomvexvdrobommbomsaasbomspdxpackageurlpurl |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
90
Development activity
84Excellent
How it's scored
| 36/36 | Push recency — last push 5 days ago |
| 21.5/36 | Commit cadence — 31/52 weeks with commits |
| 18/18 | Commit volume — 102 commits in the last year |
| 0/10 | OpenSSF Scorecard: Maintained — no data |
Inputs used
| commits_last_year | 102 |
| human_commit_share | — |
| days_since_last_push | 5 |
| active_weeks_last_year | 31 |
Release discipline
100Exceptional
How it's scored
| 27/27 | Ships releases — 100 releases published |
| 36/36 | Release recency — latest release 29 days ago |
| 27/27 | Release cadence — a release every ~7.6 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 100 |
| latest_release_tag | v11.11.0 |
| releases_from_tags | no |
| days_since_latest_release | 29 |
| mean_days_between_releases | 7.6 |
Community & Adoption
Does the project have users, downloads, attention, and a welcoming setup for contributors?
72
Popularity & adoption
54Moderate
How it's scored
| 33.2/60 | Stars — 113 stars |
| 15.1/25 | Forks — 65 forks |
| 5.6/15 | Watchers — 11 watchers |
Inputs used
| forks | 65 |
| stars | 113 |
| watchers | 11 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
92Excellent
How it's scored
| 22.5/22.5 | README |
| 22.5/22.5 | License — recognized license (Apache-2.0) |
| 18/18 | CONTRIBUTING guide |
| 13.5/13.5 | Code of conduct |
| 0/7.2 | Issue template |
| 6.3/6.3 | PR template |
Inputs used
| has_readme | yes |
| has_license | yes |
| readme_badges | — |
| has_contributing | yes |
| has_issue_template | no |
| has_code_of_conduct | yes |
| readme_badge_services | — |
| has_pull_request_template | yes |
Sustainability & Governance
Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?
82
Maintainer resilience (bus factor)
61Moderate
How it's scored
| 25.2/54 | Bus factor — 2 contributor(s) cover half of all commits |
| 16/22.5 | Commit distribution — top contributor authored 29% of commits |
| 13.5/13.5 | Contributor breadth — 35 contributors |
| 0/10 | OpenSSF Scorecard: Contributors — no data |
Inputs used
| bus_factor | 2 |
| contributors_sampled | 35 |
| top_contributor_share | 0.288 |
Issue & PR responsiveness
80Excellent
How it's scored
| 36.1/42 | Issue resolution — 86% of issues closed |
| 21.5/30 | PR acceptance — 530/740 decided PRs merged |
| 0/13 | Newcomer PR acceptance — no first-time contributor's PR decided in 30d |
| 0/15 | OpenSSF Scorecard: Code-Review — no data |
Inputs used
| merged_prs | 530 |
| open_issues | 33 |
| closed_issues | 201 |
| prs_merged_7d | — |
| prs_decided_7d | — |
| prs_merged_30d | — |
| prs_decided_30d | — |
| issue_closed_ratio | 0.859 |
| closed_unmerged_prs | 210 |
| first_time_authors_30d | — |
| first_time_prs_merged_30d | — |
| first_time_prs_decided_30d | — |
Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.
Ownership & stewardship
95Exceptional
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain — verified-domain status not read for this organization |
| 21.2/25 | Owner reach — 885 followers of CycloneDX |
| 25/25 | Track record — 66 public repos, account ~9 yr old |
Inputs used
| followers | 885 |
| owner_type | Organization |
| is_verified | — |
| owner_login | CycloneDX |
| public_repos | 66 |
| account_age_days | 3,335 |
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.
Package maintenance
100Exceptional
How it's scored
| 25/25 | Published & resolvable — 1 package(s) on pypi |
| 35/35 | Publish recency — latest publish 29 days ago |
| 20/20 | Version history — 157 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | cyclonedx-python-lib |
| ecosystems | pypi |
| any_deprecated | no |
| min_days_since_publish | 29 |
Engineering Quality
Are baseline engineering and documentation practices in place?
96
Engineering practices
100Exceptional
How it's scored
| 24/24 | CI workflows — 3 workflow(s) |
| 24/24 | Tests present |
| 16/16 | Linter config — .flake8, tox.ini |
| 9.6/9.6 | Pre-commit hooks |
| 6.4/6.4 | .editorconfig |
| 0/20 | OpenSSF Scorecard: CI-Tests — no data |
Inputs used
| has_ci | yes |
| has_tests | yes |
| has_editorconfig | yes |
| has_linter_config | yes |
| has_precommit_config | yes |
Documentation
90Excellent
How it's scored
| 30/30 | README |
| 25/25 | Documentation directory |
| 15/15 | Documentation / homepage site — https://cyclonedx.org/ |
| 10/10 | Repository description |
| 10/10 | Topics — 19 topics |
| 0/10 | Wiki |
Inputs used
| topics | python, owasp, bom, spdx, bill-of-materials, software-bill-of-materials, purl, package-url, sbom, cyclonedx, obom, mbom, saasbom, vex, software-library, attestation, cbom, library, hacktoberfest |
| has_wiki | no |
| homepage | https://cyclonedx.org/ |
| docs_site | https://cyclonedx.org/ |
| has_readme | yes |
| has_docs_dir | yes |
| has_description | yes |
Security
Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?
33
Security posture
33At Risk
How it's scored
| 0/30 | Security policy (SECURITY.md) |
| 25/25 | Dependabot config |
| 0/25 | Dependency lockfiles — published library — lockfiles are an application concern, not expected |
| 0/20 | CodeQL workflow |
Inputs used
| source | file_signals |
| lockfiles | — |
| manifests | docs/requirements.txt, pyproject.toml |
| has_codeql_workflow | no |
| has_security_policy | no |
| has_dependabot_config | yes |
Excluded from scoring (no data or not applicable): Dependency lockfiles. Remaining weights renormalized.
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.
61
Agent context & guidance
1Critical
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 0/15 | Machine-readable docs (llms.txt) |
| 0/40 | Legible commit history — no data |
Inputs used
| has_llms_txt | no |
| llms_txt_url | — |
| legible_history_share | — |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.
Verify loop (build / test / typecheck)
84Excellent
How it's scored
| 18/18 | One-command bootstrap — docs/Makefile |
| 22/22 | Automated tests |
| 11/11 | Lint / format config — .flake8, tox.ini |
| 11/11 | Static type checking — .mypy.ini, cyclonedx/py.typed |
| 0/10 | Reproducible environment |
| 0/10 | Demonstrated agent practice — no data |
| 5/8 | Automated maintenance — dependency automation configured, none observed in the sampled commits |
| 0/10 | OpenSSF Scorecard: Pinned-Dependencies — no data |
Inputs used
| has_nix | no |
| has_tests | yes |
| lockfiles | — |
| has_dockerfile | no |
| typed_language | no |
| bootstrap_files | docs/Makefile |
| has_devcontainer | no |
| has_linter_config | yes |
| typecheck_configs | .mypy.ini, cyclonedx/py.typed |
| agent_commit_share | — |
| toolchain_manifests | — |
| dependency_bot_commit_share | 0 |
Excluded from scoring (no data or not applicable): Demonstrated agent practice. Remaining weights renormalized.
Code legibility for models
82Excellent
How it's scored
| 27/45 | Type-checkable code — Python with type-check config (.mypy.ini, cyclonedx/py.typed) |
| 54.5/55 | Manageable file sizes — 1/103 source files over 60KB |
Inputs used
| primary_language | Python |
| largest_source_bytes | 65,027 |
| source_files_sampled | 103 |
| oversized_source_files | 1 |
Machine-readable interfaces
100Exceptional
How it's scored
| 0/40 | API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software |
| 0/20 | MCP server — not applicable to this kind of software |
| 40/40 | Runnable examples — examples |
Inputs used
| example_dirs | examples |
| has_mcp_signal | no |
| 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
113GitHub stars
35contributors
102commits, last 12 months
5days since last push
100releases
2bus factor
33open issues
PyPIpackage ecosystems
Data collection warnings
- OpenSSF Scorecard did not return a usable result (Skipping github.com/CycloneDX/cyclonedx-python-lib: run: repo unreachable: Get "https://api.github.com/repos/CycloneDX/cyclonedx-python-lib": internal error: innerTransport.RoundTrip: internal error: innerTransport.RoundTrip: error in HTTP: dial tcp 140.82.121.6:443: i/o timeout); skipping Scorecard checks
More detail
Direct dependencies 8
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| PyPI | packageurl-python | >=0.11, <2 | pyproject.toml |
| PyPI | py-serializable | ^2.1.0 | pyproject.toml |
| PyPI | sortedcontainers | ^2.4.0 | pyproject.toml |
| PyPI | license-expression | ^30 | pyproject.toml |
| PyPI | jsonschema | ^4.25 | pyproject.toml |
| PyPI | referencing | >=0.28.4 | pyproject.toml |
| PyPI | lxml | >=4,<7 | pyproject.toml |
| PyPI | typing_extensions | ^4.6 | pyproject.toml |
All dependencies 80
Full resolved dependency set from the GitHub dependency graph: 8 direct and 72 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| PyPI | jsonschema | 4.25.1 | direct |
| PyPI | license-expression | 30.4.4 | direct |
| PyPI | lxml | 6.1.1 | direct |
| PyPI | packageurl-python | 0.17.6 | direct |
| PyPI | py-serializable | 2.1.0 | direct |
| PyPI | referencing | 0.36.2 | direct |
| PyPI | sortedcontainers | 2.4.0 | direct |
| PyPI | typing-extensions | 4.15.0 | direct |
| PyPI | arrow | 1.4.0 | indirect |
| PyPI | attrs | 26.1.0 | indirect |
| PyPI | autopep8 | 2.3.2 | indirect |
| PyPI | bandit | 1.8.6 | indirect |
| PyPI | boolean-py | 5.0 | indirect |
| PyPI | cachetools | 6.2.6 | indirect |
| PyPI | chardet | 5.2.0 | indirect |
| PyPI | click | 8.1.8 | indirect |
| PyPI | colorama | 0.4.6 | indirect |
| PyPI | coverage | 7.10.7 | indirect |
| PyPI | ddt | 1.7.2 | indirect |
| PyPI | defusedxml | 0.7.1 | indirect |
| PyPI | deptry | 0.23.1 | indirect |
| PyPI | distlib | 0.4.3 | indirect |
| PyPI | filelock | 3.19.1 | indirect |
| PyPI | flake8 | 7.3.0 | indirect |
| PyPI | flake8-annotations | 3.1.1 | indirect |
| PyPI | flake8-bugbear | 24.12.12 | indirect |
| PyPI | flake8-copyright-validator | 0.0.1 | indirect |
| PyPI | flake8-isort | 6.1.2 | indirect |
| PyPI | flake8-quotes | 3.4.0 | indirect |
| PyPI | flake8-use-fstring | 1.4 | indirect |
| PyPI | fqdn | 1.5.1 | indirect |
| PyPI | idna | 3.18 | indirect |
| PyPI | importlib-metadata | 8.7.1 | indirect |
| PyPI | isoduration | 20.11.0 | indirect |
| PyPI | isort | 6.1.0 | indirect |
| PyPI | jsonpointer | 3.0.0 | indirect |
| PyPI | jsonschema-specifications | 2025.9.1 | indirect |
| PyPI | lark | 1.3.1 | indirect |
| PyPI | librt | 0.11.0 | indirect |
| PyPI | m2r2 | — | indirect |
| PyPI | markdown-it-py | 3.0.0 | indirect |
| PyPI | mccabe | 0.7.0 | indirect |
| PyPI | mdurl | 0.1.2 | indirect |
| PyPI | mypy | 1.19.1 | indirect |
| PyPI | mypy-extensions | 1.1.0 | indirect |
| PyPI | packaging | 26.2 | indirect |
| PyPI | pathspec | 1.1.1 | indirect |
| PyPI | pep8-naming | 0.15.1 | indirect |
| PyPI | platformdirs | 4.4.0 | indirect |
| PyPI | pluggy | 1.6.0 | indirect |
| PyPI | pycodestyle | 2.14.0 | indirect |
| PyPI | pyflakes | 3.4.0 | indirect |
| PyPI | pygments | 2.20.0 | indirect |
| PyPI | pyproject-api | 1.9.1 | indirect |
| PyPI | python-dateutil | 2.9.0.post0 | indirect |
| PyPI | python-discovery | 1.4.2 | indirect |
| PyPI | pyupgrade | 3.21.0 | indirect |
| PyPI | pyyaml | 6.0.3 | indirect |
| PyPI | requirements-parser | 0.13.0 | indirect |
| PyPI | rfc3339-validator | 0.1.4 | indirect |
| PyPI | rfc3986-validator | 0.1.1 | indirect |
| PyPI | rfc3987 | 1.3.8 | indirect |
| PyPI | rfc3987-syntax | 1.1.0 | indirect |
| PyPI | rich | 15.0.0 | indirect |
| PyPI | rpds-py | 0.27.1 | indirect |
| PyPI | setuptools | 82.0.1 | indirect |
| PyPI | six | 1.17.0 | indirect |
| PyPI | sphinx | — | indirect |
| PyPI | sphinx-autoapi | — | indirect |
| PyPI | sphinx-rtd-theme | — | indirect |
| PyPI | stevedore | 5.5.0 | indirect |
| PyPI | tokenize-rt | 6.2.0 | indirect |
| PyPI | tomli | 2.4.1 | indirect |
| PyPI | tox | 4.30.3 | indirect |
| PyPI | tzdata | 2026.2 | indirect |
| PyPI | uri-template | 1.3.0 | indirect |
| PyPI | virtualenv | 21.5.1 | indirect |
| PyPI | webcolors | 24.11.1 | indirect |
| PyPI | xmldiff | 2.7.0 | indirect |
| PyPI | zipp | 3.23.1 | indirect |
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.
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 v0.11.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics — PyPI.