Public recordAt risk
Software health reportschema 0.16.0 · metrics 1.13.0 · 2026-07-20 17:42 UTC
indygreg / python-zstandard
Python bindings to the Zstandard (zstd) compression library
indygreg/python-zstandard holds a health index of 30 out of 100, placing it in the At risk band. It scores highest on Engineering Quality (71/100) and lowest on Security (40/100). It was last updated 1 day ago. A single contributor accounts for most of its recent work.
30
overall / 100Software health index
Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At risk ceiling of 49. AI Readiness sits outside the overall score.
30
Excellent85-100Exemplary; meets essentially all checked criteria
Good70-84Healthy; minor gaps
Moderate50-69Acceptable with notable gaps; review recommended
At risk30-49Significant weaknesses; adoption warrants caution
Critical1-29Severe 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.
High-Risk Jurisdiction Policy applies a 50% multiplier to weighted overall health and gives it an At risk ceiling of 49.
Ownership
Gregory SzorcPersonal account
622 followers102 public repossince Jul 2010
This repository is owned by a personal account. A single-owner project carries more continuity risk than an organization-backed one.
Package ecosystems
| Registry | Package | Version | Downloads / mo | Versions | Last publish | Tags |
|---|---|---|---|---|---|---|
| PyPI | zstandard | 0.25.0 | - | 42 | 308 days ago | zstandardzstdcompression |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
64
Development activity
70Good
How it's scored
| 36/36 | Push recency — last push 1 days ago |
| 5.5/36 | Commit cadence — 8/52 weeks with commits |
| 18/18 | Commit volume — 102 commits in the last year |
| 10/10 | OpenSSF Scorecard: Maintained — 26 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10 |
Inputs used
| commits_last_year | 102 |
| human_commit_share | — |
| days_since_last_push | 1 |
| active_weeks_last_year | 8 |
Release discipline
56Moderate
How it's scored
| 27/27 | Ships releases — 23 releases published |
| 16.2/36 | Release recency — latest release 308 days ago |
| 12.6/27 | Release cadence — a release every ~191.1 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases. |
Inputs used
| releases_count | 23 |
| latest_release_tag | 0.25.0 |
| releases_from_tags | no |
| days_since_latest_release | 308 |
| mean_days_between_releases | 191.1 |
Community & Adoption
Does the project have users, downloads, attention, and a welcoming setup for contributors?
69
Popularity & adoption
68Moderate
How it's scored
| 45.5/60 | Stars — 638 stars |
| 17.2/25 | Forks — 117 forks |
| 5.8/15 | Watchers — 12 watchers |
Inputs used
| forks | 117 |
| stars | 638 |
| watchers | 12 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
70Good
How it's scored
| 22.5/22.5 | README |
| 22.5/22.5 | License — recognized license (BSD-3-Clause) |
| 18/18 | CONTRIBUTING guide |
| 0/13.5 | Code of conduct |
| 0/7.2 | Issue template |
| 0/6.3 | PR template |
Inputs used
| has_readme | yes |
| has_license | yes |
| has_contributing | yes |
| has_issue_template | no |
| has_code_of_conduct | no |
| has_pull_request_template | no |
Sustainability & Governance
Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?
55
Maintainer resilience (bus factor)
30At risk
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 1.6/22.5 | Commit distribution — top contributor authored 93% of commits |
| 13.5/13.5 | Contributor breadth — 45 contributors |
| 6/10 | OpenSSF Scorecard: Contributors — project has 2 contributing companies or organizations -- score normalized to 6 |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 45 |
| top_contributor_share | 0.929 |
Issue & PR responsiveness
44At risk
How it's scored
| 31.9/46.8 | Issue resolution — 68% of issues closed |
| 12.5/38.3 | PR acceptance — 38/116 decided PRs merged |
| 0/15 | OpenSSF Scorecard: Code-Review — Found 0/13 approved changesets -- score normalized to 0 |
Inputs used
| merged_prs | 38 |
| open_issues | 60 |
| closed_issues | 129 |
| issue_closed_ratio | 0.683 |
| closed_unmerged_prs | 78 |
Ownership & stewardship
69Moderate
How it's scored
| 10/30 | Ownership backing — personal (user) account |
| 0/20 | Verified domain — not applicable to user accounts |
| 20.1/25 | Owner reach — 622 followers of indygreg |
| 25/25 | Track record — 102 public repos, account ~15 yr old |
Inputs used
| followers | 622 |
| owner_type | User |
| is_verified | — |
| owner_login | indygreg |
| public_repos | 102 |
| account_age_days | 5,839 |
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.
Package maintenance
91Excellent
How it's scored
| 25/25 | Published & resolvable — 1 package(s) on pypi |
| 26/35 | Publish recency — latest publish 308 days ago |
| 20/20 | Version history — 42 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | zstandard |
| ecosystems | pypi |
| any_deprecated | no |
| min_days_since_publish | 308 |
Engineering Quality
Are baseline engineering and documentation practices in place?
71
Engineering practices
68Moderate
How it's scored
| 24/24 | CI workflows — 10 workflow(s) |
| 24/24 | Tests present |
| 0/16 | Linter config |
| 0/9.6 | Pre-commit hooks |
| 0/6.4 | .editorconfig |
| 20/20 | OpenSSF Scorecard: CI-Tests — 17 out of 17 merged PRs checked by a CI test -- score normalized to 10 |
Inputs used
| has_ci | yes |
| has_tests | yes |
| has_editorconfig | no |
| has_linter_config | no |
| has_precommit_config | no |
Documentation
75Good
How it's scored
| 30/30 | README |
| 25/25 | Documentation directory |
| 0/15 | Documentation / homepage site |
| 10/10 | Repository description |
| 10/10 | Topics — 3 topics |
| 0/10 | Wiki |
Inputs used
| topics | python, zstd, zstandard |
| has_wiki | no |
| homepage | — |
| 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?
40
Security posture
32At risk
Jurisdiction risk alert
High-risk jurisdiction exposure detected
1 top contributor profilesRussiaSecurity and overall rating: At risk ceiling
Based on self-published public profile locations. This governance signal does not determine nationality, citizenship, intent, sanctions status, or individual trustworthiness.
How jurisdiction exposure is assessedHow it's scored
| 7.5/7.5 | Binary-Artifacts — no binaries found in the repo |
| 0/7.5 | Branch-Protection — branch protection not enabled on development/release branches |
| 2.5/2.5 | CI-Tests — 17 out of 17 merged PRs checked by a CI test -- score normalized to 10 |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 0/7.5 | Code-Review — Found 0/13 approved changesets -- score normalized to 0 |
| 1.5/2.5 | Contributors — project has 2 contributing companies or organizations -- score normalized to 6 |
| 10/10 | Dangerous-Workflow — no dangerous workflow patterns detected |
| 7.5/7.5 | Dependency-Update-Tool — update tool detected |
| 0/5 | Fuzzing — project is not fuzzed |
| 2.5/2.5 | License — license file detected |
| 7.5/7.5 | Maintained — 26 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10 |
| 0/5 | Packaging — no data |
| 4/5 | Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 8 |
| 5/5 | SAST — SAST tool is run on all commits |
| 5/5 | Security-Policy — security policy file detected |
| 0/7.5 | Signed-Releases — Project has not signed or included provenance with any releases. |
| 7.5/7.5 | Token-Permissions — GitHub workflow tokens follow principle of least privilege |
| 4.5/7.5 | Vulnerabilities — 4 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 17 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 1 |
| scorecard_aggregate | 6.5 |
| high_risk_jurisdiction_cap | 49 |
| high_risk_jurisdiction_multiplier | 50 |
| security_posture_after_multiplier | 32 |
| security_posture_before_jurisdiction | 65 |
Excluded from scoring (no data or not applicable): packaging. Remaining weights renormalized. High-Risk Jurisdiction Policy applies a 50% multiplier and gives Security posture an At risk ceiling of 49.
Dependency advisories
72Good
How it's scored
| 14/35 | Direct dependencies free of known advisories — 1 affected: pyo3 0.25.1 (high 7.5) |
| 0/25 | Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope |
| 40/40 | No advisories left outstanding — no advisory has been public longer than 90 days |
Inputs used
| source | osv |
| advisories | 7 |
| affected_packages | 3 |
| assessed_packages | 105 |
| unassessed_packages | 1 |
| affected_by_severity | high 1, moderate 1, unknown 1 |
| direct_affected_packages | 1 |
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories. Remaining weights renormalized. Matched 105 resolved dependencies against OSV. 1 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? An independent, experimental badge — weight 0.0, so it is surfaced on its own and does not affect the overall health score.
56
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 |
| legible_history_share | — |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.
How it's scored
| 18/18 | One-command bootstrap — Justfile, docs/Makefile |
| 22/22 | Automated tests |
| 0/11 | Lint / format config |
| 11/11 | Static type checking — zstandard/py.typed |
| 10/10 | Reproducible environment — lockfile |
| 0/10 | Demonstrated agent practice — no data |
| 5/8 | Automated maintenance — dependency automation configured, none observed in the sampled commits |
| 8/10 | OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 8 |
Inputs used
| has_nix | no |
| has_tests | yes |
| lockfiles | Cargo.lock, uv.lock |
| has_dockerfile | no |
| typed_language | yes |
| bootstrap_files | Justfile, docs/Makefile |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | zstandard/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
97Excellent
How it's scored
| 45/45 | Type-checkable code — C (statically typed) |
| 52.4/55 | Manageable file sizes — 4/85 source files over 60KB |
Inputs used
| primary_language | C |
| largest_source_bytes | 2,233,611 |
| source_files_sampled | 85 |
| oversized_source_files | 4 |
Key facts
638GitHub stars
45contributors
102commits, last 12 months
1days since last push
23releases
1bus factor
60open issues
crates.io, PyPIpackage ecosystems
Data collection warnings
- Could not fetch crates package 'python-zstandard' from its registry
More detail
OpenSSF Scorecard 6.5 / 10
6.5aggregate
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).
| 10 | Binary-Artifacts | no binaries found in the repo |
| 0 | Branch-Protection | branch protection not enabled on development/release branches |
| 10 | CI-Tests | 17 out of 17 merged PRs checked by a CI test -- score normalized to 10 |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 0 | Code-Review | Found 0/13 approved changesets -- score normalized to 0 |
| 6 | Contributors | project has 2 contributing companies or organizations -- score normalized to 6 |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 10 | Dependency-Update-Tool | update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 10 | License | license file detected |
| 10 | Maintained | 26 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10 |
| n/a | Packaging | packaging workflow not detected |
| 8 | Pinned-Dependencies | dependency not pinned by hash detected -- score normalized to 8 |
| 10 | SAST | SAST tool is run on all commits |
| 10 | Security-Policy | security policy file detected |
| 0 | Signed-Releases | Project has not signed or included provenance with any releases. |
| 10 | Token-Permissions | GitHub workflow tokens follow principle of least privilege |
| 6 | Vulnerabilities | 4 existing vulnerabilities detected |
Direct dependencies 6
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| crates.io | libc | 0.2.175 | Cargo.toml |
| crates.io | num_cpus | 1.17.0 | Cargo.toml |
| crates.io | rayon | 1.11.0 | Cargo.toml |
| crates.io | zstd-safe | 7.2.4 | Cargo.toml |
| crates.io | zstd-sys | 2.0.16 | Cargo.toml |
| crates.io | pyo3 | 0.25.1 | Cargo.toml |
All dependencies 106
Full resolved dependency set from the GitHub dependency graph: 6 direct and 100 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| crates.io | libc | 0.2.175 | direct |
| crates.io | num_cpus | 1.17.0 | direct |
| crates.io | pyo3 | 0.25.1 | direct |
| crates.io | rayon | 1.11.0 | direct |
| crates.io | zstd-safe | 7.2.4 | direct |
| crates.io | zstd-sys | 2.0.16+zstd.1.5.7 | direct |
| crates.io | aho-corasick | 1.1.3 | indirect |
| crates.io | autocfg | 1.5.0 | indirect |
| crates.io | bindgen | 0.72.1 | indirect |
| crates.io | bitflags | 2.9.4 | indirect |
| crates.io | cc | 1.2.37 | indirect |
| crates.io | cexpr | 0.6.0 | indirect |
| crates.io | cfg-if | 1.0.3 | indirect |
| crates.io | clang-sys | 1.8.1 | indirect |
| crates.io | crossbeam-deque | 0.8.6 | indirect |
| crates.io | crossbeam-epoch | 0.9.18 | indirect |
| crates.io | crossbeam-utils | 0.8.21 | indirect |
| crates.io | either | 1.15.0 | indirect |
| crates.io | find-msvc-tools | 0.1.1 | indirect |
| crates.io | getrandom | 0.3.3 | indirect |
| crates.io | glob | 0.3.3 | indirect |
| crates.io | heck | 0.5.0 | indirect |
| crates.io | hermit-abi | 0.5.2 | indirect |
| crates.io | indoc | 2.0.6 | indirect |
| crates.io | itertools | 0.13.0 | indirect |
| crates.io | jobserver | 0.1.34 | indirect |
| crates.io | libloading | 0.8.8 | indirect |
| crates.io | memchr | 2.7.5 | indirect |
| crates.io | memoffset | 0.9.1 | indirect |
| crates.io | minimal-lexical | 0.2.1 | indirect |
| crates.io | nom | 7.1.3 | indirect |
| crates.io | once_cell | 1.21.3 | indirect |
| crates.io | pkg-config | 0.3.32 | indirect |
| crates.io | portable-atomic | 1.11.1 | indirect |
| crates.io | proc-macro2 | 1.0.101 | indirect |
| crates.io | pyo3-build-config | 0.25.1 | indirect |
| crates.io | pyo3-ffi | 0.25.1 | indirect |
| crates.io | pyo3-macros | 0.25.1 | indirect |
| crates.io | pyo3-macros-backend | 0.25.1 | indirect |
| crates.io | quote | 1.0.40 | indirect |
| crates.io | r-efi | 5.3.0 | indirect |
| crates.io | rayon-core | 1.13.0 | indirect |
| crates.io | regex | 1.11.2 | indirect |
| crates.io | regex-automata | 0.4.10 | indirect |
| crates.io | regex-syntax | 0.8.6 | indirect |
| crates.io | rustc-hash | 2.1.1 | indirect |
| crates.io | shlex | 1.3.0 | indirect |
| crates.io | syn | 2.0.106 | indirect |
| crates.io | target-lexicon | 0.13.3 | indirect |
| crates.io | unicode-ident | 1.0.19 | indirect |
| crates.io | unindent | 0.2.4 | indirect |
| crates.io | wasi | 0.14.5+wasi-0.2.4 | indirect |
| crates.io | wasip2 | 1.0.0+wasi-0.2.4 | indirect |
| crates.io | windows-link | 0.1.3 | indirect |
| crates.io | windows-targets | 0.53.3 | indirect |
| crates.io | windows_aarch64_gnullvm | 0.53.0 | indirect |
| crates.io | windows_aarch64_msvc | 0.53.0 | indirect |
| crates.io | windows_i686_gnu | 0.53.0 | indirect |
| crates.io | windows_i686_gnullvm | 0.53.0 | indirect |
| crates.io | windows_i686_msvc | 0.53.0 | indirect |
| crates.io | windows_x86_64_gnu | 0.53.0 | indirect |
| crates.io | windows_x86_64_gnullvm | 0.53.0 | indirect |
| crates.io | windows_x86_64_msvc | 0.53.0 | indirect |
| crates.io | wit-bindgen | 0.45.1 | indirect |
| PyPI | alabaster | 1.0.0 | indirect |
| PyPI | attrs | 25.3.0 | indirect |
| PyPI | babel | 2.17.0 | indirect |
| PyPI | certifi | 2025.8.3 | indirect |
| PyPI | cffi | 1.17.1 | indirect |
| PyPI | cffi | 2.0.0b1 | indirect |
| PyPI | charset-normalizer | 3.4.3 | indirect |
| PyPI | colorama | 0.4.6 | indirect |
| PyPI | docutils | 0.21.2 | indirect |
| PyPI | exceptiongroup | 1.3.0 | indirect |
| PyPI | execnet | 2.1.1 | indirect |
| PyPI | hypothesis | — | indirect |
| PyPI | hypothesis | 6.111.0 | indirect |
| PyPI | idna | 3.15 | indirect |
| PyPI | imagesize | 1.4.1 | indirect |
| PyPI | iniconfig | 2.1.0 | indirect |
| PyPI | jinja2 | 3.1.6 | indirect |
| PyPI | markupsafe | 3.0.2 | indirect |
| PyPI | mypy | 1.17.1 | indirect |
| PyPI | mypy-extensions | 1.1.0 | indirect |
| PyPI | packaging | 25.0 | indirect |
| PyPI | pathspec | 0.12.1 | indirect |
| PyPI | pluggy | 1.6.0 | indirect |
| PyPI | pycparser | 2.22 | indirect |
| PyPI | pygments | 2.20.0 | indirect |
| PyPI | pytest | 8.4.1 | indirect |
| PyPI | pytest-xdist | 3.8.0 | indirect |
| PyPI | requests | 2.33.0 | indirect |
| PyPI | roman-numerals-py | 3.1.0 | indirect |
| PyPI | snowballstemmer | 3.0.1 | indirect |
| PyPI | sortedcontainers | 2.4.0 | indirect |
| PyPI | sphinx | 8.2.3 | indirect |
| PyPI | sphinxcontrib-applehelp | 2.0.0 | indirect |
| PyPI | sphinxcontrib-devhelp | 2.0.0 | indirect |
| PyPI | sphinxcontrib-htmlhelp | 2.1.0 | indirect |
| PyPI | sphinxcontrib-jsmath | 1.0.1 | indirect |
| PyPI | sphinxcontrib-qthelp | 2.0.0 | indirect |
| PyPI | sphinxcontrib-serializinghtml | 2.0.0 | indirect |
| PyPI | tomli | 2.2.1 | indirect |
| PyPI | typing-extensions | 4.14.1 | indirect |
| PyPI | urllib3 | 2.7.0 | indirect |
| PyPI | wheel | 0.46.2 | indirect |
Dependency advisories 3
This repository publishes no package the index resolves, so its own dependency graph was assessed — 105 packages, which also include development and test pins that never ship: 3 carry known advisories, of which 1 are direct. 1 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list.
| Package | Version | Relation | Severity | Advisories | Fixed in |
|---|---|---|---|---|---|
| pyo3 | 0.25.1 | direct | high | 4 | 0.29.0 |
| pytest | 8.4.1 | indirect | moderate | 2 | 9.0.3 |
| crossbeam-epoch | 0.9.18 | indirect | unknown | 1 | 0.9.20 |
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
{
"data": {
"repo": {
"topics": [
"python",
"zstd",
"zstandard"
],
"is_fork": false,
"size_kb": 8240,
"has_wiki": false,
"homepage": null,
"languages": {
"C": 2510915,
"C++": 271923,
"Just": 1732,
"Rust": 181277,
"Shell": 46,
"Python": 446331,
"Batchfile": 51
},
"pushed_at": "2026-07-18T17:43:48Z",
"created_at": "2016-09-03T19:28:44Z",
"owner_type": "User",
"updated_at": "2026-07-19T13:53:00Z",
"description": "Python bindings to the Zstandard (zstd) compression library",
"is_archived": false,
"is_disabled": false,
"license_spdx": "BSD-3-Clause",
"default_branch": "main",
"license_spdx_raw": "BSD-3-Clause",
"primary_language": "C",
"significant_languages": [
"C",
"Python"
]
},
"owner": {
"blog": "https://gregoryszorc.com/",
"name": "Gregory Szorc",
"type": "User",
"login": "indygreg",
"company": null,
"location": "San Francisco, CA",
"followers": 622,
"avatar_url": "https://avatars.githubusercontent.com/u/342993?v=4",
"created_at": "2010-07-24T19:35:12Z",
"is_verified": null,
"public_repos": 102,
"account_age_days": 5839
},
"license": {
"state": "standard",
"spdx_id": "BSD-3-Clause",
"raw_spdx": "BSD-3-Clause",
"file_present": true,
"scorecard_found": true,
"profile_has_license": true
},
"activity": {
"releases_count": 23,
"commits_last_year": 102,
"latest_release_at": "2025-09-14T22:15:21Z",
"latest_release_tag": "0.25.0",
"releases_from_tags": false,
"days_since_last_push": 1,
"active_weeks_last_year": 8,
"days_since_latest_release": 308,
"mean_days_between_releases": 191.1
},
"community": {
"has_readme": true,
"has_license": true,
"has_description": true,
"has_contributing": true,
"health_percentage": 71,
"has_issue_template": false,
"has_code_of_conduct": false,
"has_pull_request_template": false
},
"ecosystem": {
"packages": [
{
"name": "zstandard",
"exists": true,
"license": "BSD-3-Clause",
"keywords": [
"zstandard",
"zstd",
"compression",
"Development Status :: 5 - Production/Stable",
"Intended Audience :: Developers",
"Programming Language :: C",
"Programming Language :: Python :: 3.10",
"Programming Language :: Python :: 3.11",
"Programming Language :: Python :: 3.12",
"Programming Language :: Python :: 3.13",
"Programming Language :: Python :: 3.14",
"Programming Language :: Python :: 3.9",
"Programming Language :: Python :: Free Threading :: 1 - Unstable"
],
"ecosystem": "pypi",
"matches_repo": true,
"registry_url": "https://pypi.org/project/zstandard/",
"is_deprecated": false,
"latest_version": "0.25.0",
"repository_url": "https://github.com/indygreg/python-zstandard",
"versions_count": 42,
"total_downloads": null,
"dependents_count": null,
"deprecation_note": null,
"maintainers_count": null,
"monthly_downloads": null,
"first_published_at": "2016-09-03T20:28:57.943894Z",
"latest_published_at": "2025-09-14T22:18:49.077254Z",
"latest_version_yanked": null,
"days_since_latest_publish": 308
}
]
},
"popularity": {
"forks": 117,
"stars": 638,
"watchers": 12,
"open_issues_and_prs": 71
},
"ai_readiness": {
"has_nix": false,
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"name": "Dangerous-Workflow",
"detail": "no dangerous workflow patterns detected",
"points": 10,
"status": "met",
"details": [],
"max_points": 10
},
{
"key": "dependency_update_tool",
"name": "Dependency-Update-Tool",
"detail": "update tool detected",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
},
{
"key": "fuzzing",
"name": "Fuzzing",
"detail": "project is not fuzzed",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "license",
"name": "License",
"detail": "license file detected",
"points": 2.5,
"status": "met",
"details": [],
"max_points": 2.5
},
{
"key": "maintained",
"name": "Maintained",
"detail": "26 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
},
{
"key": "packaging",
"name": "Packaging",
"detail": "packaging workflow not detected",
"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
}
],
"max_points": 5
},
{
"key": "pinned_dependencies",
"name": "Pinned-Dependencies",
"detail": "dependency not pinned by hash detected -- score normalized to 8",
"points": 4,
"status": "partial",
"details": [],
"max_points": 5
},
{
"key": "sast",
"name": "SAST",
"detail": "SAST tool is run on all commits",
"points": 5,
"status": "met",
"details": [],
"max_points": 5
},
{
"key": "security_policy",
"name": "Security-Policy",
"detail": "security policy file detected",
"points": 5,
"status": "met",
"details": [],
"max_points": 5
},
{
"key": "signed_releases",
"name": "Signed-Releases",
"detail": "Project has not signed or included provenance with any releases.",
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.5
},
{
"key": "token_permissions",
"name": "Token-Permissions",
"detail": "GitHub workflow tokens follow principle of least privilege",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
},
{
"key": "vulnerabilities",
"name": "Vulnerabilities",
"detail": "4 existing vulnerabilities detected",
"points": 4.5,
"status": "partial",
"details": [],
"max_points": 7.5
}
]
},
{
"key": "dependency_advisories",
"band": "good",
"name": "Dependency advisories",
"note": "Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories. Remaining weights renormalized. Matched 105 resolved dependencies against OSV; 1 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.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
"indirect_dependencies_free_of_known_advisories"
]
}
},
{
"code": "weights_renormalized",
"params": {}
},
{
"code": "advisories_scope_repository",
"params": {
"assessed": 105
}
},
{
"code": "advisories_unassessed",
"params": {
"count": 1
}
},
{
"code": "advisories_repo_graph_caveat",
"params": {}
},
{
"code": "advisories_reachability",
"params": {}
}
],
"value": 72,
"inputs": {
"source": "osv",
"advisories": 7,
"affected_packages": 3,
"assessed_packages": 105,
"unassessed_packages": 1,
"affected_by_severity": "high 1, moderate 1, unknown 1",
"direct_affected_packages": 1
},
"components": [
{
"key": "direct_dependencies_free_of_known_advisories",
"name": "Direct dependencies free of known advisories",
"detail": "1 affected: pyo3 0.25.1 (high 7.5)",
"points": 14,
"status": "partial",
"details": [
{
"code": "advisories_affected",
"params": {
"count": 1,
"packages": "pyo3 0.25.1 (high 7.5)"
}
}
],
"max_points": 35
},
{
"key": "indirect_dependencies_free_of_known_advisories",
"name": "Indirect dependencies free of known advisories",
"detail": "transitive set not separable from development and test dependencies in this scope",
"points": 0,
"status": "excluded",
"details": [
{
"code": "advisories_scope_not_separable",
"params": {}
}
],
"max_points": 25
},
{
"key": "no_advisories_left_outstanding",
"name": "No advisories left outstanding",
"detail": "no advisory has been public longer than 90 days",
"points": 40,
"status": "met",
"details": [
{
"code": "advisories_none_stale",
"params": {
"days": 90
}
}
],
"max_points": 40
}
]
},
{
"key": "malicious_dependencies",
"band": "excellent",
"name": "Malicious dependencies",
"note": null,
"notes": [],
"value": 100,
"inputs": {
"source": "osv",
"meaning": "reported as a malicious package by the OpenSSF corpus; the remedy is removal or moving off the compromised name, never an upgrade of the same artifact. Versions the registry has since pulled are listed but not scored",
"packages": [],
"red_flag": false,
"assessed_packages": 105,
"malicious_packages": 0,
"direct_malicious_packages": 0,
"withdrawn_malicious_packages": 0,
"installable_malicious_packages": 0
},
"components": [
{
"key": "no_dependency_reported_as_a_malicious_package",
"name": "No dependency reported as a malicious package",
"detail": "no dependency is reported as a malicious package",
"points": 100,
"status": "met",
"details": [
{
"code": "no_malicious_dependencies",
"params": {}
}
],
"max_points": 100
}
]
},
{
"key": "high_risk_jurisdiction_exposure",
"band": "moderate",
"name": "High-Risk Jurisdiction Exposure",
"note": "Only high-confidence self-published location evidence affects this multiplier. Ambiguous matches are review-only; country evidence is not proof of nationality, citizenship, legal registration, malicious intent, or sanctions status.",
"notes": [
{
"code": "jurisdiction_evidence_limits",
"params": {}
}
],
"value": 50,
"inputs": {
"meaning": "self-published location evidence; not nationality or citizenship",
"red_flag": true,
"exposures": [
{
"role": "top_contributor",
"count": 1,
"country": "Russia"
}
],
"policy_countries": [
"Russia",
"Iran",
"North Korea"
],
"review_only_matches": 0,
"assessed_self_published_locations": 8
},
"components": [
{
"key": "policy_exposure_multiplier",
"name": "Policy exposure multiplier",
"detail": "Russia: top_contributor (1)",
"points": 50,
"status": "partial",
"details": [
{
"code": "jurisdiction_exposure",
"params": {
"role": "top_contributor",
"count": 1,
"country": "Russia"
}
}
],
"max_points": 100
}
]
}
],
"description": "Are visible security and supply-chain practices strong, with no malicious dependency and no unresolved high-risk jurisdiction exposure?"
},
{
"key": "ai_readiness",
"band": "moderate",
"name": "AI Readiness",
"value": 56,
"weight": 0,
"metrics": [
{
"key": "ai_agent_context",
"band": "critical",
"name": "Agent context & guidance",
"note": "Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
"legible_commit_history"
]
}
},
{
"code": "weights_renormalized",
"params": {}
}
],
"value": 1,
"inputs": {
"has_llms_txt": false,
"legible_history_share": null,
"agent_instruction_files": [],
"agent_instruction_max_bytes": null
},
"components": [
{
"key": "agent_instructions",
"name": "Agent instructions",
"detail": "no CLAUDE.md / AGENTS.md / editor rules",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_agent_instructions",
"params": {}
}
],
"max_points": 45
},
{
"key": "machine_readable_docs_llms_txt",
"name": "Machine-readable docs (llms.txt)",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 15
},
{
"key": "legible_commit_history",
"name": "Legible commit history",
"detail": "no data",
"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
}
],
"max_points": 40
}
]
},
{
"key": "ai_verify_loop",
"band": "good",
"name": "Verify loop (build / test / typecheck)",
"note": "Excluded from scoring (no data or not applicable): Demonstrated agent practice. Remaining weights renormalized.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
"demonstrated_agent_practice"
]
}
},
{
"code": "weights_renormalized",
"params": {}
}
],
"value": 82,
"inputs": {
"has_nix": false,
"has_tests": true,
"lockfiles": [
"Cargo.lock",
"uv.lock"
],
"has_dockerfile": false,
"typed_language": true,
"bootstrap_files": [
"Justfile",
"docs/Makefile"
],
"has_devcontainer": false,
"has_linter_config": false,
"typecheck_configs": [
"zstandard/py.typed"
],
"agent_commit_share": null,
"toolchain_manifests": [],
"dependency_bot_commit_share": 0
},
"components": [
{
"key": "one_command_bootstrap",
"name": "One-command bootstrap",
"detail": "Justfile, docs/Makefile",
"points": 18,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "Justfile, docs/Makefile"
}
}
],
"max_points": 18
},
{
"key": "automated_tests",
"name": "Automated tests",
"detail": null,
"points": 22,
"status": "met",
"details": [],
"max_points": 22
},
{
"key": "lint_format_config",
"name": "Lint / format config",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 11
},
{
"key": "static_type_checking",
"name": "Static type checking",
"detail": "zstandard/py.typed",
"points": 11,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "zstandard/py.typed"
}
}
],
"max_points": 11
},
{
"key": "reproducible_environment",
"name": "Reproducible environment",
"detail": "lockfile",
"points": 10,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "lockfile"
}
}
],
"max_points": 10
},
{
"key": "demonstrated_agent_practice",
"name": "Demonstrated agent practice",
"detail": "no data",
"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
}
],
"max_points": 10
},
{
"key": "automated_maintenance",
"name": "Automated maintenance",
"detail": "dependency automation configured, none observed in the sampled commits",
"points": 5,
"status": "partial",
"details": [
{
"code": "dependency_bot_config_only",
"params": {}
}
],
"max_points": 8
},
{
"key": "openssf_scorecard_pinned_dependencies",
"name": "OpenSSF Scorecard: Pinned-Dependencies",
"detail": "dependency not pinned by hash detected -- score normalized to 8",
"points": 8,
"status": "partial",
"details": [],
"max_points": 10
}
]
},
{
"key": "ai_code_legibility",
"band": "excellent",
"name": "Code legibility for models",
"note": null,
"notes": [],
"value": 97,
"inputs": {
"primary_language": "C",
"largest_source_bytes": 2233611,
"source_files_sampled": 85,
"oversized_source_files": 4
},
"components": [
{
"key": "type_checkable_code",
"name": "Type-checkable code",
"detail": "C (statically typed)",
"points": 45,
"status": "met",
"details": [
{
"code": "statically_typed_language",
"params": {
"language": "C"
}
}
],
"max_points": 45
},
{
"key": "manageable_file_sizes",
"name": "Manageable file sizes",
"detail": "4/85 source files over 60KB",
"points": 52.4,
"status": "partial",
"details": [
{
"code": "oversized_source_files",
"params": {
"kb": 60,
"sampled": 85,
"oversized": 4
}
}
],
"max_points": 55
}
]
}
],
"description": "How well is the repo equipped to be developed and maintained with AI coding agents? An independent, experimental badge — weight 0.0, so it is surfaced on its own and does not affect the overall health score."
}
],
"metrics_version": "1.13.0"
},
"warnings": [
"Could not fetch crates package 'python-zstandard' from its registry"
],
"report_type": "repository",
"generated_at": "2026-07-20T17:42:16.550744Z",
"schema_version": "0.16.0",
"badge_url": "https://raw.githubusercontent.com/inspect-software/badges/main/v1/i/indygreg/python-zstandard.svg",
"full_name": "indygreg/python-zstandard",
"license_state": "standard",
"license_spdx": "BSD-3-Clause"
}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 v1.13.0, schema v0.16.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics — PyPI.