Public recordGood
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-08-28 07:12 UTC
dimforge / nalgebra
Linear algebra library for Rust.
dimforge/nalgebra holds a health index of 75 out of 100, placing it in the Good band. It scores highest on Community & Adoption (79/100) and lowest on Security (49/100). It was last updated 59 days ago. A single contributor accounts for most of its recent work.
75
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.
75
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 65 is calibrated to 75 on the published index scale (record calibration 2026-08-02).
Ownership
dimforgeOrganization
564 followers37 public repossince Sep 2018
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 |
|---|---|---|---|---|---|---|
| crates.io | nalgebra | 0.35.0 | 5,116,551 | 124 | 95 days ago | algebralinearmathmatrixvectorscienceno-stdwasmmathematics |
| crates.io | nalgebra-glm | 0.21.0 | 54,443 | 27 | 95 days ago | algebralinearmathmatrixvectorscienceno-stdwasmmathematics |
| crates.io | nalgebra-lapack | 0.28.0 | 1,806 | 29 | 95 days ago | algebralapacklinearmatrixvectormathematicsscience |
| crates.io | nalgebra-macros | 0.3.0 | 2,775,037 | 5 | 392 days ago | algebralinearmathmatrixvectorsciencemathematics |
| crates.io | nalgebra-sparse | 0.12.0 | 45,627 | 13 | 95 days ago | algebralinearmathmatrixvectorscienceno-stdwasmmathematics |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
52
Development activity
45Weak
How it's scored
| 18/36 | Push recency — last push 59 days ago |
| 12.5/36 | Commit cadence — 18/52 weeks with commits |
| 13.1/18 | Commit volume — 28 commits in the last year |
| 1/10 | OpenSSF Scorecard: Maintained — 2 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 1 |
Inputs used
| commits_last_year | 28 |
| human_commit_share | 1 |
| days_since_last_push | 59 |
| active_weeks_last_year | 18 |
Release discipline
62Moderate
How it's scored
| 16.2/27 | Ships releases — 92 version tags (no GitHub releases) |
| 27/36 | Release recency — latest release 95 days ago |
| 12.6/27 | Release cadence — a release every ~136.2 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 92 |
| latest_release_tag | v0.35.0 |
| releases_from_tags | yes |
| days_since_latest_release | 95 |
| mean_days_between_releases | 136.2 |
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?
79
Popularity & adoption
92Excellent
How it's scored
| 59.7/60 | Stars — 4,779 stars |
| 22.9/25 | Forks — 563 forks |
| 9.8/15 | Watchers — 58 watchers |
Inputs used
| forks | 563 |
| stars | 4,779 |
| watchers | 58 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
50Moderate
How it's scored
| 22.5/22.5 | README |
| 22.5/22.5 | License — recognized license (Apache-2.0) |
| 0/18 | 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 |
| readme_badges | 3 |
| has_contributing | no |
| has_issue_template | no |
| has_code_of_conduct | no |
| readme_badge_services | shields.io |
| has_pull_request_template | no |
Ecosystem adoption (downloads)
100Exceptional
How it's scored
| 80/80 | Monthly downloads — 7,993,464 downloads/month across crates |
| 0/20 | Registry dependents — not reported by this ecosystem |
Inputs used
| packages | nalgebra, nalgebra-glm, nalgebra-lapack, nalgebra-macros, nalgebra-sparse |
| dependents | — |
| ecosystems | crates |
| total_downloads | 137,871,929 |
| monthly_downloads | 7,993,464 |
| 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?
67
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 9/22.5 | Commit distribution — top contributor authored 60% of commits |
| 13.5/13.5 | Contributor breadth — 100 contributors |
| 10/10 | OpenSSF Scorecard: Contributors — project has 38 contributing companies or organizations |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 100 |
| top_contributor_share | 0.6 |
How it's scored
| 22.8/42 | Issue resolution — 54% of issues closed |
| 26.2/30 | PR acceptance — 636/729 decided PRs merged |
| 0/13 | Newcomer PR acceptance — no first-time contributor's PR decided in 30d |
| 7.5/15 | OpenSSF Scorecard: Code-Review — Found 17/30 approved changesets -- score normalized to 5 |
Inputs used
| merged_prs | 636 |
| open_issues | 363 |
| closed_issues | 429 |
| prs_merged_7d | 0 |
| prs_decided_7d | 0 |
| prs_merged_30d | 0 |
| prs_decided_30d | 0 |
| issue_closed_ratio | 0.542 |
| closed_unmerged_prs | 93 |
| first_time_authors_30d | 0 |
| first_time_prs_merged_30d | 0 |
| first_time_prs_decided_30d | 0 |
Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.
Ownership & stewardship
73Good
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 19.8/25 | Owner reach — 564 followers of dimforge |
| 23.5/25 | Track record — 37 public repos, account ~7 yr old |
Inputs used
| followers | 564 |
| owner_type | Organization |
| is_verified | no |
| owner_login | dimforge |
| public_repos | 37 |
| account_age_days | 2,904 |
Package maintenance
100Exceptional
How it's scored
| 25/25 | Published & resolvable — 5 package(s) on crates |
| 35/35 | Publish recency — latest publish 95 days ago |
| 20/20 | Version history — 124 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | nalgebra, nalgebra-glm, nalgebra-lapack, nalgebra-macros, nalgebra-sparse |
| ecosystems | crates |
| any_deprecated | no |
| min_days_since_publish | 95 |
Engineering Quality
Are baseline engineering and documentation practices in place?
77
Engineering practices
78Good
How it's scored
| 24/24 | CI workflows — 1 workflow(s) |
| 24/24 | Tests present |
| 16/16 | Linter config — clippy.toml, rustfmt.toml |
| 0/9.6 | Pre-commit hooks |
| 0/6.4 | .editorconfig |
| 14/20 | OpenSSF Scorecard: CI-Tests — 17 out of 24 merged PRs checked by a CI test -- score normalized to 7 |
Inputs used
| has_ci | yes |
| has_tests | yes |
| has_editorconfig | no |
| has_linter_config | yes |
| has_precommit_config | no |
Documentation
75Good
How it's scored
| 30/30 | README |
| 0/25 | Documentation directory |
| 15/15 | Documentation / homepage site — https://nalgebra.rs |
| 10/10 | Repository description |
| 10/10 | Topics — 4 topics |
| 10/10 | Wiki |
Inputs used
| topics | linear-algebra, matrix, vector, algebra |
| has_wiki | yes |
| homepage | https://nalgebra.rs |
| docs_site | https://nalgebra.rs |
| has_readme | yes |
| has_docs_dir | no |
| has_description | yes |
Security
Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?
49
Security posture
39Weak
How 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 |
| 1.8/2.5 | CI-Tests — 17 out of 24 merged PRs checked by a CI test -- score normalized to 7 |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 3.8/7.5 | Code-Review — Found 17/30 approved changesets -- score normalized to 5 |
| 2.5/2.5 | Contributors — project has 38 contributing companies or organizations |
| 10/10 | Dangerous-Workflow — no dangerous workflow patterns detected |
| 0/7.5 | Dependency-Update-Tool — no update tool detected |
| 0/5 | Fuzzing — project is not fuzzed |
| 2.5/2.5 | License — license file detected |
| 0.8/7.5 | Maintained — 2 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 1 |
| 0/5 | Packaging — no data |
| 0/5 | Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0 |
| 0/5 | SAST — SAST tool is not run on all commits -- score normalized to 0 |
| 0/5 | Security-Policy — security policy file not detected |
| 0/7.5 | Signed-Releases — no data |
| 0/7.5 | Token-Permissions — detected GitHub workflow tokens with excessive permissions |
| 7.5/7.5 | Vulnerabilities — 0 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 16 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 2 |
| scorecard_aggregate | 3.9 |
Excluded from scoring (no data or not applicable): Packaging, Signed-Releases. Remaining weights renormalized.
Dependency advisories
89Excellent
How it's scored
| 26.6/35 | Direct dependencies free of known advisories — 1 affected: rkyv 0.7.46 (unknown) |
| 25/25 | Indirect dependencies free of known advisories — no indirect dependency carries a known advisory |
| 37.2/40 | No advisories left outstanding — 1 advisory-carrying package(s) unaddressed past 90 days; oldest published 106 days ago |
Inputs used
| source | osv |
| advisories | 1 |
| affected_packages | 1 |
| assessed_packages | 119 |
| unassessed_packages | 0 |
| affected_by_severity | unknown 1 |
| direct_affected_packages | 1 |
Matched the crates:nalgebra@0.35.0 runtime dependency closure — what installing the published package pulls in — 119 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.
66
Agent context & guidance
38Weak
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 0/15 | Machine-readable docs (llms.txt) |
| 38.4/40 | Legible commit history — 72 of 100 human commits state their intent (structured subject or explanatory body) |
Inputs used
| has_llms_txt | no |
| llms_txt_url | — |
| legible_history_share | 0.72 |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Verify loop (build / test / typecheck)
62Moderate
How it's scored
| 18/18 | One-command bootstrap — nalgebra-lapack/Makefile |
| 22/22 | Automated tests |
| 11/11 | Lint / format config — clippy.toml, rustfmt.toml |
| 11/11 | Static type checking — Rust (statically typed) |
| 0/10 | Reproducible environment |
| 0/10 | Demonstrated agent practice — no agent-authored commits among the last 100 |
| 0/8 | Automated maintenance — no automated dependency updates observed |
| 0/10 | OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0 |
Inputs used
| has_nix | no |
| has_tests | yes |
| lockfiles | — |
| has_dockerfile | no |
| typed_language | yes |
| bootstrap_files | nalgebra-lapack/Makefile |
| has_devcontainer | no |
| has_linter_config | yes |
| typecheck_configs | — |
| agent_commit_share | 0 |
| toolchain_manifests | Cargo.toml, examples/cargo/Cargo.toml, nalgebra-glm/Cargo.toml, nalgebra-lapack/Cargo.toml, nalgebra-macros/Cargo.toml, nalgebra-sparse/Cargo.toml |
| dependency_bot_commit_share | 0 |
Code legibility for models
100Exceptional
How it's scored
| 45/45 | Type-checkable code — Rust (statically typed) |
| 54.9/55 | Manageable file sizes — 1/397 source files over 60KB |
Inputs used
| primary_language | Rust |
| largest_source_bytes | 79,106 |
| source_files_sampled | 397 |
| 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
4,779GitHub stars
100contributors
28commits, last 12 months
59days since last push
92releases
1bus factor
363open issues
crates.iopackage ecosystems
Data collection warnings
- Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
More detail
Star and fork history 0 ★ / 563 ⇿
0Stars
563Forks
92Releases
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.
Major 0Minor 26Patch 66
Each point covers 12 days.
OpenSSF Scorecard 3.9 / 10
3.9aggregate
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).
| 10 | Binary-Artifacts | no binaries found in the repo |
| 0 | Branch-Protection | branch protection not enabled on development/release branches |
| 7 | CI-Tests | 17 out of 24 merged PRs checked by a CI test -- score normalized to 7 |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 5 | Code-Review | Found 17/30 approved changesets -- score normalized to 5 |
| 10 | Contributors | project has 38 contributing companies or organizations |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 0 | Dependency-Update-Tool | no update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 10 | License | license file detected |
| 1 | Maintained | 2 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 1 |
| n/a | Packaging | packaging workflow not detected |
| 0 | Pinned-Dependencies | dependency not pinned by hash detected -- score normalized to 0 |
| 0 | SAST | SAST tool is not run on all commits -- score normalized to 0 |
| 0 | Security-Policy | security policy file not detected |
| n/a | Signed-Releases | no releases found |
| 0 | Token-Permissions | detected GitHub workflow tokens with excessive permissions |
| 10 | Vulnerabilities | 0 existing vulnerabilities detected |
Direct dependencies 51
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| crates.io | nalgebra-macros | 0.3.0 | Cargo.toml |
| crates.io | typenum | 1.12 | Cargo.toml |
| crates.io | rand-package | 0.10 | Cargo.toml |
| crates.io | num-traits | 0.2 | Cargo.toml |
| crates.io | num-complex | 0.4 | Cargo.toml |
| crates.io | num-rational | 0.4 | Cargo.toml |
| crates.io | approx | 0.5 | Cargo.toml |
| crates.io | simba | 0.10 | Cargo.toml |
| crates.io | alga | 0.9 | Cargo.toml |
| crates.io | rand_distr | 0.6 | Cargo.toml |
| crates.io | matrixmultiply | 0.3 | Cargo.toml |
| crates.io | serde | 1.0 | Cargo.toml |
| crates.io | rkyv | 0.7.41 | Cargo.toml |
| crates.io | mint | 0.5 | Cargo.toml |
| crates.io | quickcheck | 1 | Cargo.toml |
| crates.io | pest | 2 | Cargo.toml |
| crates.io | pest_derive | 2 | Cargo.toml |
| crates.io | bytemuck | 1.5 | Cargo.toml |
| crates.io | matrixcompare-core | 0.1 | Cargo.toml |
| crates.io | proptest | 1 | Cargo.toml |
| crates.io | glam030 | 0.30 | Cargo.toml |
| crates.io | glam031 | 0.31 | Cargo.toml |
| crates.io | glam032 | 0.32 | Cargo.toml |
| crates.io | glam033 | 0.33 | Cargo.toml |
| crates.io | rayon | 1.6 | Cargo.toml |
| crates.io | defmt | 1.0.1 | Cargo.toml |
| crates.io | encase | 0.12 | Cargo.toml |
| crates.io | num-traits | 0.2 | nalgebra-glm/Cargo.toml |
| crates.io | approx | 0.5 | nalgebra-glm/Cargo.toml |
| crates.io | simba | 0.10 | nalgebra-glm/Cargo.toml |
| crates.io | nalgebra | 0.35 | nalgebra-glm/Cargo.toml |
| crates.io | nalgebra | 0.35 | nalgebra-lapack/Cargo.toml |
| crates.io | num-traits | 0.2 | nalgebra-lapack/Cargo.toml |
| crates.io | num-complex | 0.4 | nalgebra-lapack/Cargo.toml |
| crates.io | simba | 0.10 | nalgebra-lapack/Cargo.toml |
| crates.io | serde | 1.0 | nalgebra-lapack/Cargo.toml |
| crates.io | lapack | 0.20 | nalgebra-lapack/Cargo.toml |
| crates.io | blas | 0.23 | nalgebra-lapack/Cargo.toml |
| crates.io | lapack-src | 0.13 | nalgebra-lapack/Cargo.toml |
| crates.io | blas-src | 0.14 | nalgebra-lapack/Cargo.toml |
| crates.io | thiserror | 2.0 | nalgebra-lapack/Cargo.toml |
| crates.io | syn | 2.0 | nalgebra-macros/Cargo.toml |
| crates.io | quote | 1.0 | nalgebra-macros/Cargo.toml |
| crates.io | proc-macro2 | 1.0 | nalgebra-macros/Cargo.toml |
| crates.io | nalgebra | 0.35 | nalgebra-sparse/Cargo.toml |
| crates.io | num-traits | 0.2 | nalgebra-sparse/Cargo.toml |
| crates.io | proptest | 1.0 | nalgebra-sparse/Cargo.toml |
| crates.io | matrixcompare-core | 0.1.0 | nalgebra-sparse/Cargo.toml |
| crates.io | pest | 2 | nalgebra-sparse/Cargo.toml |
| crates.io | pest_derive | 2 | nalgebra-sparse/Cargo.toml |
| crates.io | serde | 1.0 | nalgebra-sparse/Cargo.toml |
All dependencies 41
Full resolved dependency set from the GitHub dependency graph: 31 direct and 10 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| crates.io | alga | — | direct |
| crates.io | approx | — | direct |
| crates.io | blas | — | direct |
| crates.io | blas-src | — | direct |
| crates.io | bytemuck | — | direct |
| crates.io | defmt | — | direct |
| crates.io | encase | — | direct |
| crates.io | lapack | — | direct |
| crates.io | lapack-src | — | direct |
| crates.io | matrixcompare-core | — | direct |
| crates.io | matrixmultiply | — | direct |
| crates.io | mint | — | direct |
| crates.io | nalgebra | — | direct |
| crates.io | nalgebra-macros | — | direct |
| crates.io | num-complex | — | direct |
| crates.io | num-rational | — | direct |
| crates.io | num-traits | — | direct |
| crates.io | pest | — | direct |
| crates.io | pest_derive | — | direct |
| crates.io | proc-macro2 | — | direct |
| crates.io | proptest | — | direct |
| crates.io | quickcheck | — | direct |
| crates.io | quote | — | direct |
| crates.io | rand_distr | — | direct |
| crates.io | rayon | — | direct |
| crates.io | rkyv | — | direct |
| crates.io | serde | — | direct |
| crates.io | simba | — | direct |
| crates.io | syn | — | direct |
| crates.io | thiserror | — | direct |
| crates.io | typenum | — | direct |
| crates.io | cool_asserts | — | indirect |
| crates.io | criterion | — | indirect |
| crates.io | glam | — | indirect |
| crates.io | itertools | — | indirect |
| crates.io | matrixcompare | — | indirect |
| crates.io | rand | — | indirect |
| crates.io | rand_xorshift | — | indirect |
| crates.io | serde_json | — | indirect |
| crates.io | tempfile | — | indirect |
| crates.io | trybuild | — | indirect |
Dependency advisories 1
Installing crates:nalgebra@0.35.0 pulls in 119 packages, direct and transitive: 1 carry known advisories, of which 1 are direct dependencies.
| Package | Version | Relation | Severity | Advisories | Fixed in |
|---|---|---|---|---|---|
| rkyv | 0.7.46 | direct | unknown | 1 | 0.8.17 |
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.
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 — crates.io.