Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-15 14:31 UTC

iyulab / FluxIndex

Production-ready .NET 10 RAG library with hybrid vector + keyword search, multi-backend storage (SQLite, PostgreSQL, Neo4j, Qdrant), and MCP server integration.

C#MIT★ 6 stars⑂ 0 forkssince Sep 2025View on GitHub ↗
KindCommand-line toolMCP serverLibraryhow this is determined
#dotnet#hybrid-search#pgvector#rag#semantic-search#vector-search

iyulab/FluxIndex holds a health index of 67 out of 100, placing it in the Good band. It scores highest on Vitality (83/100) and lowest on Community & Adoption (38/100). It was last updated today. A single contributor accounts for most of its recent work.

67
overall / 100
Good

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.

67
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 61 is calibrated to 67 on the published index scale (record calibration 2026-08-02).

Ownership

iyulabOrganization
22 followers138 public repossince Jul 2019

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
NuGetFluxIndex.CLI0.4.1-28 days agoragvectorstoresearchaiembeddingsretrieval
NuGetFluxIndex.SDK0.41.1-1260 days agoragvectorstoresearchaiembeddingsretrievalsdk
NuGetFluxIndex.Core0.41.1-1240 days agoragvectorstoresearchaiembeddingscoredomain
NuGetFluxIndex.Cache.Redis0.41.1-1270 days agoragvectorstoresearchaiembeddingsretrieval
NuGetFluxIndex.Storage.SQLite0.2.4-6355 days agofluxindexsqlitestorageembeddeddatabase
NuGetFluxIndex.Providers.OpenAI0.41.1-940 days agofluxindexopenaiembeddingrerankerrag
NuGetFluxIndex.Providers.LMSupply0.41.1-940 days agofluxindexlmsupplyembeddingrerankertextcompletionragonnxlocal
NuGetFluxIndex.Storage.PostgreSQL0.41.1-1270 days agofluxindexpostgresqlpgvectorvectorstorestorage

Metrics by category

Vitality

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

83Excellent · 21% of overall

Development activity

94Exceptional
How it's scored
36/36Push recency — last push 0 days ago
29.8/36Commit cadence — 43/52 weeks with commits
18/18Commit volume — 479 commits in the last year
10/10OpenSSF Scorecard: Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year479
human_commit_share1
days_since_last_push0
active_weeks_last_year43

Release discipline

66Good
How it's scored
16.2/27Ships releases — 19 version tags (no GitHub releases)
16.2/36Release recency — latest release 273 days ago
27/27Release cadence — a release every ~7.2 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count19
latest_release_tagv0.5.0
releases_from_tagsyes
days_since_latest_release273
mean_days_between_releases7.2
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?

38Weak · 17% of overall

Popularity & adoption

11Critical
How it's scored
11.3/60Stars — 6 stars
0/25Forks — 0 forks
0/15Watchers — 1 watchers
Inputs used
forks0
stars6
watchers1
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

50Moderate
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (MIT)
0/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges14
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_servicesgithub.com, shields.io
has_pull_request_templateno

Ecosystem adoption (downloads)

66Good
How it's scored
52.7/80Total downloads — 117,333 downloads all-time across nuget
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagesFluxIndex.CLI, FluxIndex.SDK, FluxIndex.Core, FluxIndex.Cache.Redis, FluxIndex.Storage.SQLite, FluxIndex.Providers.OpenAI, FluxIndex.Providers.LMSupply, FluxIndex.Storage.PostgreSQL
dependents—
ecosystemsnuget
total_downloads117,333
monthly_downloads—
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?

56Moderate · 23% of overall

Maintainer resilience (bus factor)

23At Risk
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
5.6/22.5Commit distribution — top contributor authored 75% of commits
2.7/13.5Contributor breadth — 2 contributors
6/10OpenSSF Scorecard: Contributors — project has 2 contributing companies or organizations -- score normalized to 6
Inputs used
bus_factor1
contributors_sampled2
top_contributor_share0.751

Issue & PR responsiveness

53Moderate
How it's scored
42/42Issue resolution — 100% of issues closed
4.3/30PR acceptance — 2/14 decided PRs merged
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
0/15OpenSSF Scorecard: Code-Review — Found 0/30 approved changesets -- score normalized to 0
Inputs used
merged_prs2
open_issues0
closed_issues2
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio1
closed_unmerged_prs12
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.

Ownership & stewardship

65Good
How it's scored
30/30Ownership backing — organization-owned
0/20Verified domain
9.8/25Owner reach — 22 followers of iyulab
25/25Track record — 138 public repos, account ~7 yr old
Inputs used
followers22
owner_typeOrganization
is_verifiedno
owner_loginiyulab
public_repos138
account_age_days2,633

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 8 package(s) on nuget
35/35Publish recency — latest publish 0 days ago
20/20Version history — 127 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagesFluxIndex.CLI, FluxIndex.SDK, FluxIndex.Core, FluxIndex.Cache.Redis, FluxIndex.Storage.SQLite, FluxIndex.Providers.OpenAI, FluxIndex.Providers.LMSupply, FluxIndex.Storage.PostgreSQL
ecosystemsnuget
any_deprecatedno
min_days_since_publish0

Engineering Quality

Are baseline engineering and documentation practices in place?

75Good · 19% of overall

Engineering practices

68Good
How it's scored
24/24CI workflows — 4 workflow(s)
24/24Tests present
0/16Linter config
0/9.6Pre-commit hooks
6.4/6.4.editorconfig
0/20OpenSSF Scorecard: CI-Tests — no data
Inputs used
has_ciyes
has_testsyes
has_editorconfigyes
has_linter_configno
has_precommit_configno
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: CI-Tests. Remaining weights renormalized.

Documentation

85Excellent
How it's scored
30/30README
25/25Documentation directory
0/15Documentation / homepage site
10/10Repository description
10/10Topics — 6 topics
10/10Wiki
Inputs used
topicsdotnet, hybrid-search, pgvector, rag, semantic-search, vector-search
has_wikiyes
homepage—
docs_site—
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

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

49Weak · 16% of overall

Security posture

49Weak
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — branch protection not enabled on development/release branches
0/2.5CI-Tests — no data
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
0/7.5Code-Review — Found 0/30 approved changesets -- score normalized to 0
1.5/2.5Contributors — project has 2 contributing companies or organizations -- score normalized to 6
10/10Dangerous-Workflow — no dangerous workflow patterns detected
0/7.5Dependency-Update-Tool — no update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
7.5/7.5Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
5/5Packaging — packaging workflow detected
0/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5SAST — no SAST tool detected
5/5Security-Policy — security policy file detected
0/7.5Signed-Releases — no data
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
7.5/7.5Vulnerabilities — 0 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated16
scorecard_versionv5.5.0
checks_inconclusive2
scorecard_aggregate4.9
Excluded from scoring (no data or not applicable): CI-Tests, Signed-Releases. 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.

60Moderate · 4% of overall

Agent context & guidance

40Weak
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 100 of 100 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—

Verify loop (build / test / typecheck)

46Weak
How it's scored
12.6/18One-command bootstrap — cli/FluxIndex.CLI/FluxIndex.CLI.csproj, samples/RealQualityTest/RealQualityTest.csproj, samples/WebFluxSample/WebFluxSample.csproj (toolchain convention, no task runner)
22/22Automated tests
0/11Lint / format config
11/11Static type checking — C# (statically typed)
0/10Reproducible environment
0/10Demonstrated agent practice — no agent-authored commits among the last 100
0/8Automated maintenance — no automated dependency updates observed
0/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfiles—
has_dockerfileno
typed_languageyes
bootstrap_files—
has_devcontainerno
has_linter_configno
typecheck_configs—
agent_commit_share0
toolchain_manifestscli/FluxIndex.CLI/FluxIndex.CLI.csproj, samples/RealQualityTest/RealQualityTest.csproj, samples/WebFluxSample/WebFluxSample.csproj, src/FluxIndex.Cache.Redis/FluxIndex.Cache.Redis.csproj, src/FluxIndex.Core/FluxIndex.Core.csproj, src/FluxIndex.Integrations.FileFlux/FluxIndex.Integrations.FileFlux.csproj, src/FluxIndex.Integrations.FluxCurator/FluxIndex.Integrations.FluxCurator.csproj, src/FluxIndex.Integrations.FluxImprover/FluxIndex.Integrations.FluxImprover.csproj, src/FluxIndex.Integrations.WebFlux/FluxIndex.Integrations.WebFlux.csproj, src/FluxIndex.MCP/FluxIndex.MCP.csproj, src/FluxIndex.Providers.LMSupply/FluxIndex.Providers.LMSupply.csproj, src/FluxIndex.Providers.OpenAI/FluxIndex.Providers.OpenAI.csproj, src/FluxIndex.SDK/FluxIndex.SDK.csproj, src/FluxIndex.Storage.Neo4j/FluxIndex.Storage.Neo4j.csproj, src/FluxIndex.Storage.PostgreSQL/FluxIndex.Storage.PostgreSQL.csproj, src/FluxIndex.Storage.Qdrant/FluxIndex.Storage.Qdrant.csproj, src/FluxIndex.Storage.SQLite/FluxIndex.Storage.SQLite.csproj, tests/FluxIndex.Cache.Redis.Tests/FluxIndex.Cache.Redis.Tests.csproj, tests/FluxIndex.Core.Tests/FluxIndex.Core.Tests.csproj, tests/FluxIndex.LocalSimulation/FluxIndex.LocalSimulation.csproj, tests/FluxIndex.Providers.LMSupply.Tests/FluxIndex.Providers.LMSupply.Tests.csproj, tests/FluxIndex.Providers.OpenAI.Tests/FluxIndex.Providers.OpenAI.Tests.csproj, tests/FluxIndex.SDK.Tests/FluxIndex.SDK.Tests.csproj, tests/FluxIndex.Storage.Neo4j.Tests/FluxIndex.Storage.Neo4j.Tests.csproj, tests/FluxIndex.Storage.PostgreSQL.Tests/FluxIndex.Storage.PostgreSQL.Tests.csproj, tests/FluxIndex.Storage.Qdrant.Tests/FluxIndex.Storage.Qdrant.Tests.csproj, tests/FluxIndex.Storage.SQLite.Tests/FluxIndex.Storage.SQLite.Tests.csproj
dependency_bot_commit_share0

Code legibility for models

100Exceptional
How it's scored
45/45Type-checkable code — C# (statically typed)
54.6/55Manageable file sizes — 4/490 source files over 60KB
Inputs used
primary_languageC#
largest_source_bytes70,132
source_files_sampled490
oversized_source_files4

Machine-readable interfaces

100Exceptional
How it's scored
0/40API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software
20/20MCP server
40/40Runnable examples — samples
Inputs used
example_dirssamples
has_mcp_signalyes
api_schema_files—
interfaces_expected_of—
Excluded from scoring (no data or not applicable): API schema (OpenAPI/GraphQL/proto). Remaining weights renormalized.

Key facts

6GitHub stars
2contributors
479commits, last 12 months
0days since last push
19releases
1bus factor
0open issues
—package ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository

More detail

OpenSSF Scorecard 4.9 / 10
4.9aggregate

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 · 2026-09-15 14:31 UTC

10Binary-Artifactsno binaries found in the repo
0Branch-Protectionbranch protection not enabled on development/release branches
n/aCI-Testsno pull request found
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
0Code-ReviewFound 0/30 approved changesets -- score normalized to 0
6Contributorsproject has 2 contributing companies or organizations -- score normalized to 6
10Dangerous-Workflowno dangerous workflow patterns detected
0Dependency-Update-Toolno update tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
10Packagingpackaging workflow detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTno SAST tool detected
10Security-Policysecurity policy file detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
10Vulnerabilities0 existing vulnerabilities detected
Direct dependencies 48
RegistryPackageVersion constraintManifest
NuGetLMSupply.Embedder—cli/FluxIndex.CLI/FluxIndex.CLI.csproj
NuGetLMSupply.Generator—cli/FluxIndex.CLI/FluxIndex.CLI.csproj
NuGetSystem.CommandLine—cli/FluxIndex.CLI/FluxIndex.CLI.csproj
NuGetSpectre.Console—cli/FluxIndex.CLI/FluxIndex.CLI.csproj
NuGetMicrosoft.Extensions.Configuration.Json—cli/FluxIndex.CLI/FluxIndex.CLI.csproj
NuGetMicrosoft.Extensions.Configuration.UserSecrets—cli/FluxIndex.CLI/FluxIndex.CLI.csproj
NuGetMicrosoft.Extensions.Logging.Console—cli/FluxIndex.CLI/FluxIndex.CLI.csproj
NuGetStackExchange.Redis—src/FluxIndex.Cache.Redis/FluxIndex.Cache.Redis.csproj
NuGetMicrosoft.Extensions.Caching.StackExchangeRedis—src/FluxIndex.Cache.Redis/FluxIndex.Cache.Redis.csproj
NuGetFlux.Abstractions—src/FluxIndex.Core/FluxIndex.Core.csproj
NuGetMicrosoft.Extensions.Caching.Memory—src/FluxIndex.Core/FluxIndex.Core.csproj
NuGetMicrosoft.Extensions.Options—src/FluxIndex.Core/FluxIndex.Core.csproj
NuGetFileFlux—src/FluxIndex.Integrations.FileFlux/FluxIndex.Integrations.FileFlux.csproj
NuGetMicrosoft.Extensions.Options—src/FluxIndex.Integrations.FileFlux/FluxIndex.Integrations.FileFlux.csproj
NuGetFluxCurator—src/FluxIndex.Integrations.FluxCurator/FluxIndex.Integrations.FluxCurator.csproj
NuGetMicrosoft.Extensions.Options—src/FluxIndex.Integrations.FluxCurator/FluxIndex.Integrations.FluxCurator.csproj
NuGetFluxImprover—src/FluxIndex.Integrations.FluxImprover/FluxIndex.Integrations.FluxImprover.csproj
NuGetMicrosoft.Extensions.Options—src/FluxIndex.Integrations.FluxImprover/FluxIndex.Integrations.FluxImprover.csproj
NuGetWebFlux—src/FluxIndex.Integrations.WebFlux/FluxIndex.Integrations.WebFlux.csproj
NuGetMicrosoft.Extensions.Options—src/FluxIndex.Integrations.WebFlux/FluxIndex.Integrations.WebFlux.csproj
NuGetModelContextProtocol—src/FluxIndex.MCP/FluxIndex.MCP.csproj
NuGetMicrosoft.Extensions.Hosting—src/FluxIndex.MCP/FluxIndex.MCP.csproj
NuGetMicrosoft.Extensions.Configuration.EnvironmentVariables—src/FluxIndex.MCP/FluxIndex.MCP.csproj
NuGetMicrosoft.Extensions.Configuration.Json—src/FluxIndex.MCP/FluxIndex.MCP.csproj
NuGetLMSupply.Embedder—src/FluxIndex.MCP/FluxIndex.MCP.csproj
NuGetLMSupply.Embedder—src/FluxIndex.Providers.LMSupply/FluxIndex.Providers.LMSupply.csproj
NuGetLMSupply.Generator—src/FluxIndex.Providers.LMSupply/FluxIndex.Providers.LMSupply.csproj
NuGetLMSupply.Reranker—src/FluxIndex.Providers.LMSupply/FluxIndex.Providers.LMSupply.csproj
NuGetMicrosoft.Extensions.Hosting.Abstractions—src/FluxIndex.Providers.LMSupply/FluxIndex.Providers.LMSupply.csproj
NuGetMicrosoft.Extensions.Http—src/FluxIndex.Providers.OpenAI/FluxIndex.Providers.OpenAI.csproj
NuGetMicrosoft.Extensions.Http—src/FluxIndex.SDK/FluxIndex.SDK.csproj
NuGetMicrosoft.Extensions.Caching.Memory—src/FluxIndex.SDK/FluxIndex.SDK.csproj
NuGetMicrosoft.Extensions.Hosting.Abstractions—src/FluxIndex.SDK/FluxIndex.SDK.csproj
NuGetMicrosoft.Extensions.Options—src/FluxIndex.SDK/FluxIndex.SDK.csproj
NuGetFluxGuard.Remote—src/FluxIndex.SDK/FluxIndex.SDK.csproj
NuGetNeo4j.Driver—src/FluxIndex.Storage.Neo4j/FluxIndex.Storage.Neo4j.csproj
NuGetMicrosoft.Extensions.Options—src/FluxIndex.Storage.Neo4j/FluxIndex.Storage.Neo4j.csproj
NuGetMicrosoft.Extensions.Hosting—src/FluxIndex.Storage.PostgreSQL/FluxIndex.Storage.PostgreSQL.csproj
NuGetNpgsql.EntityFrameworkCore.PostgreSQL—src/FluxIndex.Storage.PostgreSQL/FluxIndex.Storage.PostgreSQL.csproj
NuGetPgvector.EntityFrameworkCore—src/FluxIndex.Storage.PostgreSQL/FluxIndex.Storage.PostgreSQL.csproj
NuGetQdrant.Client—src/FluxIndex.Storage.Qdrant/FluxIndex.Storage.Qdrant.csproj
NuGetMicrosoft.Extensions.Options—src/FluxIndex.Storage.Qdrant/FluxIndex.Storage.Qdrant.csproj
NuGetMicrosoft.EntityFrameworkCore.Design—src/FluxIndex.Storage.SQLite/FluxIndex.Storage.SQLite.csproj
NuGetMicrosoft.EntityFrameworkCore.Sqlite—src/FluxIndex.Storage.SQLite/FluxIndex.Storage.SQLite.csproj
NuGetMicrosoft.Extensions.Configuration.Binder—src/FluxIndex.Storage.SQLite/FluxIndex.Storage.SQLite.csproj
NuGetMicrosoft.Extensions.Hosting.Abstractions—src/FluxIndex.Storage.SQLite/FluxIndex.Storage.SQLite.csproj
NuGetsqlite-vec—src/FluxIndex.Storage.SQLite/FluxIndex.Storage.SQLite.csproj
NuGetSQLitePCLRaw.bundle_e_sqlite3—src/FluxIndex.Storage.SQLite/FluxIndex.Storage.SQLite.csproj
All dependencies not collected

The resolved dependency set could not be collected for this report: GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository

Raw JSON report machine-readable

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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 — NuGet.