# DistrictDataLabs/yellowbrick — health index 34/100 (At Risk)

> Inspection of the public repository DistrictDataLabs/yellowbrick by inspect.software. It holds a health index of 34 out of 100, placing it in the At Risk band. The index is a signal derived from publicly visible practice, not a warranty, a security audit, or an endorsement, and it is independent of payment.

- Repository: https://github.com/DistrictDataLabs/yellowbrick
- Report page: https://inspect.software/software/DistrictDataLabs/yellowbrick
- Full JSON report: https://inspect.software/api/repositories/DistrictDataLabs/yellowbrick/report
- Badge: https://raw.githubusercontent.com/inspect-software/badges/main/v1/d/DistrictDataLabs/yellowbrick.svg
- Inspected: 2026-08-12
- Methodology: metrics 2.10.0, report schema 0.31.0 (https://inspect.software/methodology.md)

## Category summary

| Category | Weight | Index | Band |
|---|---|---|---|
| Vitality | 21% | 18/100 | Critical |
| Community & Adoption | 17% | 86/100 | Excellent |
| Sustainability & Governance | 23% | 76/100 | Good |
| Engineering Quality | 19% | 80/100 | Excellent |
| Security | 16% | 51/100 | Moderate |
| AI Readiness | 4% | 56/100 | Moderate |

The weighted overall 61 is calibrated to 67 on the published index scale (record calibration 2026-08-02). Abandonment Policy applies a 60% multiplier to weighted overall health and gives it a ceiling of 34.

## Repository facts

| Field | Value |
|---|---|
| Description | Visual analysis and diagnostic tools to facilitate machine learning model selection. |
| Classification | cli, library |
| Homepage | http://www.scikit-yb.org/ |
| Primary language | Python |
| License | Apache-2.0 |
| Stars | 4,400 |
| Forks | 570 |
| Created | 2016-05-18 |
| Last push | 2025-02-19 |
| Latest release | v1.5 |
| Commits (last year) | 0 |
| Bus factor | 2 |
| Topics | machine-learning, visual-analysis, model-selection, visualization, scikit-learn, visualizer, matplotlib, python, estimator, anaconda |

## Vitality — 18/100 (Critical)

Is the project alive — is code being written and are releases shipping? Weight: 21% of the overall index.

### Development activity — 1/100 (Critical)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Push recency | not met | 0 / 36 | last push 539 days ago |
| Commit cadence | not met | 0 / 36 | 0/52 weeks with commits |
| Commit volume | not met | 0 / 18 | 0 commits in the last year |
| OpenSSF Scorecard: Maintained | not met | 0 / 10 | 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |

### Release discipline — 44/100 (Weak)

Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Ships releases | met | 27 / 27 | 24 releases published |
| Release recency | not met | 0 / 36 | latest release 1452 days ago |
| Release cadence | partial | 12.6 / 27 | a release every ~143.6 days |
| OpenSSF Scorecard: Signed-Releases | excluded | 0 / 10 | no releases found |

### Abandonment — 60/100 (Moderate)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Project is still maintained | partial | 60 / 100 | no human commit for 1143 days; 3 unmet obligation(s): pull requests unanswered, releases stalled, Scorecard reports it unmaintained |

## Community & Adoption — 86/100 (Excellent)

Does the project have users, downloads, attention, and a welcoming setup for contributors? Weight: 17% of the overall index.

### Popularity & adoption — 93/100 (Exceptional)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Stars | partial | 59.1 / 60 | 4,400 stars |
| Forks | partial | 23 / 25 | 570 forks |
| Watchers | partial | 11.2 / 15 | 103 watchers |

### Community health — 77/100 (Good)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| README | met | 22.5 / 22.5 | — |
| License | met | 22.5 / 22.5 | recognized license (Apache-2.0) |
| CONTRIBUTING guide | met | 18 / 18 | — |
| Code of conduct | not met | 0 / 13.5 | — |
| Issue template | not met | 0 / 7.2 | — |
| PR template | met | 6.3 / 6.3 | — |

## Sustainability & Governance — 76/100 (Good)

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep? Weight: 23% of the overall index.

### Maintainer resilience (bus factor) — 62/100 (Moderate)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Bus factor | partial | 25.2 / 54 | 2 contributor(s) cover half of all commits |
| Commit distribution | partial | 13 / 22.5 | top contributor authored 42% of commits |
| Contributor breadth | met | 13.5 / 13.5 | 100 contributors |
| OpenSSF Scorecard: Contributors | met | 10 / 10 | project has 14 contributing companies or organizations |

### Issue & PR responsiveness — 85/100 (Excellent)

Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Issue resolution | partial | 36.4 / 42 | 87% of issues closed |
| PR acceptance | partial | 23.8 / 30 | 483/608 decided PRs merged |
| Newcomer PR acceptance | excluded | 0 / 13 | no first-time contributor's PR decided in 30d |
| OpenSSF Scorecard: Code-Review | partial | 13.5 / 15 | Found 27/30 approved changesets -- score normalized to 9 |

### Ownership & stewardship — 85/100 (Excellent)

Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Ownership backing | met | 30 / 30 | organization-owned |
| Verified domain | excluded | 0 / 20 | verified-domain status not read for this organization |
| Owner reach | partial | 13.2 / 25 | 67 followers of DistrictDataLabs |
| Track record | met | 25 / 25 | 76 public repos, account ~12 yr old |

## Engineering Quality — 80/100 (Excellent)

Are baseline engineering and documentation practices in place? Weight: 19% of the overall index.

### Engineering practices — 74/100 (Good)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| CI workflows | met | 24 / 24 | 3 workflow(s) |
| Tests present | met | 24 / 24 | — |
| Linter config | met | 16 / 16 | — |
| Pre-commit hooks | met | 9.6 / 9.6 | — |
| .editorconfig | not met | 0 / 6.4 | — |
| OpenSSF Scorecard: CI-Tests | not met | 0 / 20 | 0 out of 27 merged PRs checked by a CI test -- score normalized to 0 |

### Documentation — 90/100 (Excellent)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| README | met | 30 / 30 | — |
| Documentation directory | met | 25 / 25 | — |
| Documentation / homepage site | met | 15 / 15 | http://www.scikit-yb.org/ |
| Repository description | met | 10 / 10 | — |
| Topics | met | 10 / 10 | 10 topics |
| Wiki | not met | 0 / 10 | — |

## Security — 51/100 (Moderate)

Are visible security and supply-chain practices strong, with no malicious dependency and no unresolved high-risk jurisdiction exposure? Weight: 16% of the overall index.

### Security posture — 39/100 (Weak)

Excluded from scoring (no data or not applicable): Branch-Protection, Packaging, Signed-Releases. Remaining weights renormalized.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Binary-Artifacts | met | 7.5 / 7.5 | no binaries found in the repo |
| Branch-Protection | excluded | 0 / 7.5 | internal 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 |
| CI-Tests | not met | 0 / 2.5 | 0 out of 27 merged PRs checked by a CI test -- score normalized to 0 |
| CII-Best-Practices | not met | 0 / 2.5 | no effort to earn an OpenSSF best practices badge detected |
| Code-Review | partial | 6.8 / 7.5 | Found 27/30 approved changesets -- score normalized to 9 |
| Contributors | met | 2.5 / 2.5 | project has 14 contributing companies or organizations |
| Dangerous-Workflow | met | 10 / 10 | no dangerous workflow patterns detected |
| Dependency-Update-Tool | not met | 0 / 7.5 | no update tool detected |
| Fuzzing | not met | 0 / 5 | project is not fuzzed |
| License | met | 2.5 / 2.5 | license file detected |
| Maintained | not met | 0 / 7.5 | 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
| Packaging | excluded | 0 / 5 | packaging workflow not detected |
| Pinned-Dependencies | not met | 0 / 5 | dependency not pinned by hash detected -- score normalized to 0 |
| SAST | partial | 3.5 / 5 | SAST tool detected but not run on all commits |
| Security-Policy | not met | 0 / 5 | security policy file not detected |
| Signed-Releases | excluded | 0 / 7.5 | no releases found |
| Token-Permissions | not met | 0 / 7.5 | detected GitHub workflow tokens with excessive permissions |
| Vulnerabilities | not met | 0 / 7.5 | 20 existing vulnerabilities detected |

### Dependency advisories — 100/100 (Exceptional)

Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 13 resolved dependencies against OSV; 11 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.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Direct dependencies free of known advisories | met | 35 / 35 | no direct dependency carries a known advisory |
| Indirect dependencies free of known advisories | excluded | 0 / 25 | transitive set not separable from development and test dependencies in this scope |
| No advisories left outstanding | excluded | 0 / 40 | no advisory carries a publication date |

### Malicious dependencies — 100/100 (Exceptional)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| No dependency reported as a malicious package | met | 100 / 100 | no dependency is reported as a malicious package |

### High-Risk Jurisdiction Exposure — 100/100 (Exceptional)

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.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Policy exposure multiplier | met | 100 / 100 | no confirmed policy-scope location match |

## AI Readiness — 56/100 (Moderate)

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight: agent tooling is a real maintenance signal, but its absence must never gate the top of the scale (calibration saturates at raw 91, so 100/100 remains reachable with AI Readiness at zero).

### Agent context & guidance — 40/100 (Weak)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Agent instructions | not met | 0 / 45 | no CLAUDE.md / AGENTS.md / editor rules |
| Machine-readable docs (llms.txt) | not met | 0 / 15 | — |
| Legible commit history | met | 40 / 40 | 82 of 100 human commits state their intent (structured subject or explanatory body) |

### Verify loop (build / test / typecheck) — 51/100 (Moderate)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| One-command bootstrap | met | 18 / 18 | Makefile, docs/Makefile |
| Automated tests | met | 22 / 22 | — |
| Lint / format config | met | 11 / 11 | — |
| Static type checking | not met | 0 / 11 | — |
| Reproducible environment | not met | 0 / 10 | — |
| Demonstrated agent practice | not met | 0 / 10 | no agent-authored commits among the last 100 |
| Automated maintenance | not met | 0 / 8 | no automated dependency updates observed |
| OpenSSF Scorecard: Pinned-Dependencies | not met | 0 / 10 | dependency not pinned by hash detected -- score normalized to 0 |

### Code legibility for models — 55/100 (Moderate)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Type-checkable code | not met | 0 / 45 | Python without a type-check config |
| Manageable file sizes | met | 55 / 55 | 0/199 source files over 60KB |

### Machine-readable interfaces — 100/100 (Exceptional)

Excluded from scoring (no data or not applicable): API schema (OpenAPI/GraphQL/proto), MCP server. Remaining weights renormalized.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| API schema (OpenAPI/GraphQL/proto) | excluded | 0 / 40 | not applicable to this kind of software |
| MCP server | excluded | 0 / 20 | not applicable to this kind of software |
| Runnable examples | met | 40 / 40 | examples, notebooks |

## Collection warnings

- Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token

## What this report is

inspect.software measures public repositories against a single published, versioned methodology and reports the result as a 1–100 health index. Findings are signals derived from what is visible in public repository data — they are not a security audit, a warranty, or an endorsement, and no result depends on payment.

- Methodology, formulas and weights: https://inspect.software/methodology.md
- What a result does and does not claim: https://inspect.software/wiki/signals-not-warranties.md
- Rating bands: https://inspect.software/wiki/scoring-bands.md
- Corrections: https://inspect.software/contact.md
- Index of all documents: https://inspect.software/llms.txt