Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-08-28 05:52 UTC

fluxcd / flagger

Progressive delivery Kubernetes operator (Canary, A/B Testing and Blue/Green deployments)

GoApache-2.0★ 5,395 stars⑂ 803 forkssince Sep 2018View on GitHub ↗
KindNetwork serviceLibraryhow this is determined

fluxcd/flagger holds a health index of 95 out of 100, placing it in the Exceptional band. It scores highest on Community & Adoption (90/100) and lowest on AI Readiness (68/100). It was last updated 3 days ago. A single contributor accounts for most of its recent work.

95
overall / 100
Exceptional

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.

95
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 82 is calibrated to 95 on the published index scale (record calibration 2026-08-02).

Ownership

Flux CD projectOrganization · verified domain
910 followers50 public repossince Jun 2019

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publish
Gogithub.com/fluxcd/flaggerv1.44.0-6343 days ago

Metrics by category

Vitality

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

87Excellent · 21% of overall
How it's scored
36/36Push recency — last push 3 days ago
19.4/36Commit cadence — 28/52 weeks with commits
18/18Commit volume — 144 commits in the last year
10/10OpenSSF Scorecard: Maintained — 30 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year144
human_commit_share0.95
days_since_last_push3
active_weeks_last_year28
How it's scored
27/27Ships releases — 100 releases published
36/36Release recency — latest release 38 days ago
19.8/27Release cadence — a release every ~99.4 days
9/10OpenSSF Scorecard: Signed-Releases — 5 out of the last 5 releases have a total of 9 signed artifacts.
Inputs used
releases_count100
latest_release_tagv1.44.0
releases_from_tagsno
days_since_latest_release38
mean_days_between_releases99.4

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

90Excellent · 17% of overall
How it's scored
60/60Stars — 5,395 stars
24.2/25Forks — 803 forks
9.7/15Watchers — 56 watchers
Inputs used
forks803
stars5,395
watchers56
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

85Excellent
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (Apache-2.0)
18/18CONTRIBUTING guide
13.5/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges5
has_contributingyes
has_issue_templateno
has_code_of_conductyes
readme_badge_servicesbestpractices.coreinfrastructure.org, goreportcard.com, shields.io
has_pull_request_templateno

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

75Good · 23% of overall
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
6.3/22.5Commit distribution — top contributor authored 72% of commits
13.5/13.5Contributor breadth — 99 contributors
10/10OpenSSF Scorecard: Contributors — project has 51 contributing companies or organizations
Inputs used
bus_factor1
contributors_sampled99
top_contributor_share0.722
How it's scored
26.3/42Issue resolution — 63% of issues closed
25.7/30PR acceptance — 890/1,037 decided PRs merged
8.7/13Newcomer PR acceptance — 2/3 first-time contributors' PRs merged in 30d
15/15OpenSSF Scorecard: Code-Review — all changesets reviewed
Inputs used
merged_prs890
open_issues317
closed_issues534
prs_merged_7d0
prs_decided_7d0
prs_merged_30d5
prs_decided_30d6
issue_closed_ratio0.627
closed_unmerged_prs147
first_time_authors_30d3
first_time_prs_merged_30d2
first_time_prs_decided_30d3
How it's scored
30/30Ownership backing — organization-owned
20/20Verified domain
21.3/25Owner reach — 910 followers of fluxcd
24.4/25Track record — 50 public repos, account ~7 yr old
Inputs used
followers910
owner_typeOrganization
is_verifiedyes
owner_loginfluxcd
public_repos50
account_age_days2,621

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 1 package(s) on go
35/35Publish recency — latest publish 43 days ago
20/20Version history — 63 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagesgithub.com/fluxcd/flagger
ecosystemsgo
any_deprecatedno
min_days_since_publish43

Engineering Quality

Are baseline engineering and documentation practices in place?

77Good · 19% of overall
How it's scored
24/24CI workflows — 6 workflow(s)
24/24Tests present
0/16Linter config
0/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests — 16 out of 16 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configno
has_precommit_configno

Documentation

90Excellent
How it's scored
30/30README
25/25Documentation directory
15/15Documentation / homepage site — https://docs.flagger.app/main
10/10Repository description
10/10Topics — 11 topics
0/10Wiki
Inputs used
topicsprogressive-delivery, kubernetes, gitops, canary, ab-testing, istio, aws-appmesh, linkerd, nginx, gloo, contour
has_wikino
homepagehttps://docs.flagger.app/main
docs_sitehttps://docs.flagger.app/main
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

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

87Excellent · 16% of overall

Security posture

87Excellent
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — no data
2.5/2.5CI-Tests — 16 out of 16 merged PRs checked by a CI test -- score normalized to 10
1.2/2.5CII-Best-Practices — badge detected: Passing
7.5/7.5Code-Review — all changesets reviewed
2.5/2.5Contributors — project has 51 contributing companies or organizations
10/10Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
7.5/7.5Maintained — 30 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10
5/5Packaging — packaging workflow detected
3/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 6
5/5SAST — SAST tool is run on all commits
5/5Security-Policy — security policy file detected
6.8/7.5Signed-Releases — 5 out of the last 5 releases have a total of 9 signed artifacts.
7.5/7.5Token-Permissions — GitHub workflow tokens follow principle of least privilege
3.8/7.5Vulnerabilities — 5 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated17
scorecard_versionv5.5.0
checks_inconclusive1
scorecard_aggregate8.7
Excluded from scoring (no data or not applicable): Branch-Protection. Remaining weights renormalized.
How it's scored
26.6/35Direct dependencies free of known advisories — 1 affected: github.com/aws/aws-sdk-go v1.55.8 (unknown)
0/25Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope
37.2/40No advisories left outstanding — 1 advisory-carrying package(s) unaddressed past 90 days; oldest published 1,658 days ago
Inputs used
sourceosv
advisories5
affected_packages3
assessed_packages107
unassessed_packages0
affected_by_severityunknown 3
direct_affected_packages1
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories. Remaining weights renormalized. Matched 107 resolved dependencies against OSV. 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? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

68Good · 4% of overall
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
15/15Machine-readable docs (llms.txt) — llms.txt served by the project website (https://docs.flagger.app/llms.txt)
40/40Legible commit history — 74 of 95 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtyes
llms_txt_urlhttps://docs.flagger.app/llms.txt
legible_history_share0.779
agent_instruction_files—
agent_instruction_max_bytes—
How it's scored
18/18One-command bootstrap — Makefile
22/22Automated tests
0/11Lint / format config
11/11Static type checking — Go (statically typed)
10/10Reproducible environment — Dockerfile, lockfile
0/10Demonstrated agent practice — no agent-authored commits among the last 100
8/8Automated maintenance — 5 of the last 100 commits are automated dependency updates
6/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 6
Inputs used
has_nixno
has_testsyes
lockfilesgo.sum
has_dockerfileyes
typed_languageyes
bootstrap_filesMakefile
has_devcontainerno
has_linter_configno
typecheck_configs—
agent_commit_share0
toolchain_manifestsgo.mod
dependency_bot_commit_share0.05
How it's scored
45/45Type-checkable code — Go (statically typed)
54.9/55Manageable file sizes — 1/511 source files over 60KB
Inputs used
primary_languageGo
largest_source_bytes82,243
source_files_sampled511
oversized_source_files1
How it's scored
0/40API schema (OpenAPI/GraphQL/proto)
0/20MCP server
40/40Runnable examples — examples
Inputs used
example_dirsexamples
has_mcp_signalno
api_schema_files—
interfaces_expected_ofnetwork-service

Key facts

5,395GitHub stars
99contributors
144commits, last 12 months
3days since last push
100releases
1bus factor
317open issues
Gopackage ecosystems

Data collection warnings

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

More detail

Star and fork history 0 ★ / 803 ⇿
0Stars
803Forks
100Releases

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.

0200400600800789102018-112022-102026-08
Major 1Minor 65Patch 29

Each point covers 8 days.

OpenSSF Scorecard 8.7 / 10
8.7aggregate

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 · 2026-08-28 05:51 UTC

10Binary-Artifactsno binaries found in the repo
n/aBranch-Protectioninternal 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
10CI-Tests16 out of 16 merged PRs checked by a CI test -- score normalized to 10
5CII-Best-Practicesbadge detected: Passing
10Code-Reviewall changesets reviewed
10Contributorsproject has 51 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10
10Packagingpackaging workflow detected
6Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 6
10SASTSAST tool is run on all commits
10Security-Policysecurity policy file detected
9Signed-Releases5 out of the last 5 releases have a total of 9 signed artifacts.
10Token-PermissionsGitHub workflow tokens follow principle of least privilege
5Vulnerabilities5 existing vulnerabilities detected
Direct dependencies 31
RegistryPackageVersion constraintManifest
Gocloud.google.com/go/monitoringv1.30.0go.mod
Gogithub.com/Azure/azure-sdk-for-go/sdk/azcorev1.22.0go.mod
Gogithub.com/Azure/azure-sdk-for-go/sdk/azidentityv1.14.0go.mod
Gogithub.com/Masterminds/semver/v3v3.5.0go.mod
Gogithub.com/aws/aws-sdk-gov1.55.8go.mod
Gogithub.com/davecgh/go-spewv1.1.2-0.20180830191138-d8f796af33ccgo.mod
Gogithub.com/go-logr/zaprv1.3.0go.mod
Gogithub.com/google/go-cmpv0.7.0go.mod
Gogithub.com/google/uuidv1.6.0go.mod
Gogithub.com/googleapis/gax-go/v2v2.23.0go.mod
Gogithub.com/hashicorp/go-retryablehttpv0.7.8go.mod
Gogithub.com/influxdata/influxdb-client-go/v2v2.14.0go.mod
Gogithub.com/prometheus/client_golangv1.24.1go.mod
Gogithub.com/signalfx/signalflow-client-go/v2v2.3.0go.mod
Gogithub.com/signalfx/signalfx-gov1.63.0go.mod
Gogithub.com/stretchr/testifyv1.11.1go.mod
Gogo.uber.org/zapv1.28.0go.mod
Gogolang.org/x/syncv0.22.0go.mod
Gogoogle.golang.org/apiv0.292.0go.mod
Gogoogle.golang.org/grpcv1.83.0go.mod
Gogoogle.golang.org/protobufv1.36.12go.mod
Gogopkg.in/h2non/gock.v1v1.1.2go.mod
Gogopkg.in/inf.v0v0.9.1go.mod
Gok8s.io/apiv0.36.3go.mod
Gok8s.io/apimachineryv0.36.3go.mod
Gok8s.io/client-gov0.36.3go.mod
Gok8s.io/code-generatorv0.36.3go.mod
Gok8s.io/klog/v2v2.140.0go.mod
Gok8s.io/metricsv0.36.3go.mod
Gok8s.io/utilsv0.0.0-20260707023825-cf1189d6abe3go.mod
Goknative.dev/servingv0.50.0go.mod
All dependencies 107

Full resolved dependency set from the GitHub dependency graph: 31 direct and 76 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
Gocloud.google.com/go/monitoringv1.30.0direct
Gogithub.com/aws/aws-sdk-gov1.55.8direct
Gogithub.com/azure/azure-sdk-for-go/sdk/azcorev1.22.0direct
Gogithub.com/azure/azure-sdk-for-go/sdk/azidentityv1.14.0direct
Gogithub.com/davecgh/go-spewv1.1.2-0.20180830191138-d8f796af33ccdirect
Gogithub.com/go-logr/zaprv1.3.0direct
Gogithub.com/google/go-cmpv0.7.0direct
Gogithub.com/google/uuidv1.6.0direct
Gogithub.com/googleapis/gax-go/v2v2.23.0direct
Gogithub.com/hashicorp/go-retryablehttpv0.7.8direct
Gogithub.com/influxdata/influxdb-client-go/v2v2.14.0direct
Gogithub.com/masterminds/semver/v3v3.5.0direct
Gogithub.com/prometheus/client_golangv1.24.1direct
Gogithub.com/signalfx/signalflow-client-go/v2v2.3.0direct
Gogithub.com/signalfx/signalfx-gov1.63.0direct
Gogithub.com/stretchr/testifyv1.11.1direct
Gogo.uber.org/zapv1.28.0direct
Gogolang.org/x/syncv0.22.0direct
Gogoogle.golang.org/apiv0.292.0direct
Gogoogle.golang.org/grpcv1.83.0direct
Gogoogle.golang.org/protobufv1.36.12direct
Gogopkg.in/h2non/gock.v1v1.1.2direct
Gogopkg.in/inf.v0v0.9.1direct
Gok8s.io/apiv0.36.3direct
Gok8s.io/apimachineryv0.36.3direct
Gok8s.io/client-gov0.36.3direct
Gok8s.io/code-generatorv0.36.3direct
Gok8s.io/klog/v2v2.140.0direct
Gok8s.io/metricsv0.36.3direct
Gok8s.io/utilsv0.0.0-20260707023825-cf1189d6abe3direct
Goknative.dev/servingv0.50.0direct
Gocloud.google.com/go/authv0.22.0indirect
Gocloud.google.com/go/auth/oauth2adaptv0.2.8indirect
Gocloud.google.com/go/compute/metadatav0.9.0indirect
Gogithub.com/apapsch/go-jsonmerge/v2v2.0.0indirect
Gogithub.com/azure/azure-sdk-for-go/sdk/internalv1.12.0indirect
Gogithub.com/azuread/microsoft-authentication-library-for-gov1.7.2indirect
Gogithub.com/beorn7/perksv1.0.1indirect
Gogithub.com/blendle/zapdriverv1.3.1indirect
Gogithub.com/cespare/xxhash/v2v2.3.0indirect
Gogithub.com/emicklei/go-restful/v3v3.13.0indirect
Gogithub.com/evanphx/json-patch/v5v5.9.11indirect
Gogithub.com/felixge/httpsnoopv1.0.4indirect
Gogithub.com/fxamacker/cbor/v2v2.9.0indirect
Gogithub.com/go-logr/logrv1.4.3indirect
Gogithub.com/go-logr/stdrv1.2.2indirect
Gogithub.com/go-openapi/jsonpointerv0.21.0indirect
Gogithub.com/go-openapi/jsonreferencev0.21.0indirect
Gogithub.com/go-openapi/swagv0.23.0indirect
Gogithub.com/golang-jwt/jwt/v5v5.3.1indirect
Gogithub.com/google/gnostic-modelsv0.7.0indirect
Gogithub.com/google/go-containerregistryv0.20.3indirect
Gogithub.com/google/s2a-gov0.1.9indirect
Gogithub.com/googleapis/enterprise-certificate-proxyv0.3.19indirect
Gogithub.com/gorilla/websocketv1.5.4-0.20250319132907-e064f32e3674indirect
Gogithub.com/h2non/parthv0.0.0-20190131123155-b4df798d6542indirect
Gogithub.com/hashicorp/go-cleanhttpv0.5.2indirect
Gogithub.com/influxdata/line-protocolv0.0.0-20210922203350-b1ad95c89adfindirect
Gogithub.com/jmespath/go-jmespathv0.4.1-0.20220621161143-b0104c826a24indirect
Gogithub.com/josharian/internv1.0.0indirect
Gogithub.com/json-iterator/gov1.1.12indirect
Gogithub.com/kylelemons/godebugv1.1.0indirect
Gogithub.com/mailru/easyjsonv0.9.0indirect
Gogithub.com/modern-go/concurrentv0.0.0-20180306012644-bacd9c7ef1ddindirect
Gogithub.com/modern-go/reflect2v1.0.3-0.20250322232337-35a7c28c31eeindirect
Gogithub.com/munnerz/goautonegv0.0.0-20191010083416-a7dc8b61c822indirect
Gogithub.com/oapi-codegen/runtimev1.0.0indirect
Gogithub.com/opencontainers/go-digestv1.0.0indirect
Gogithub.com/pkg/browserv0.0.0-20240102092130-5ac0b6a4141cindirect
Gogithub.com/pmezard/go-difflibv1.0.1-0.20181226105442-5d4384ee4fb2indirect
Gogithub.com/prometheus/client_modelv0.6.2indirect
Gogithub.com/prometheus/commonv0.70.1indirect
Gogithub.com/prometheus/procfsv0.21.1indirect
Gogithub.com/spf13/pflagv1.0.10indirect
Gogithub.com/x448/float16v0.8.4indirect
Gogo.opentelemetry.io/auto/sdkv1.2.1indirect
Gogo.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpcv0.67.0indirect
Gogo.opentelemetry.io/contrib/instrumentation/net/http/otelhttpv0.69.0indirect
Gogo.opentelemetry.io/otelv1.44.0indirect
Gogo.opentelemetry.io/otel/metricv1.44.0indirect
Gogo.opentelemetry.io/otel/tracev1.44.0indirect
Gogo.uber.org/multierrv1.11.0indirect
Gogo.yaml.in/yaml/v2v2.4.4indirect
Gogo.yaml.in/yaml/v3v3.0.5indirect
Gogolang.org/x/cryptov0.54.0indirect
Gogolang.org/x/modv0.38.0indirect
Gogolang.org/x/netv0.57.0indirect
Gogolang.org/x/oauth2v0.36.0indirect
Gogolang.org/x/sysv0.47.0indirect
Gogolang.org/x/termv0.45.0indirect
Gogolang.org/x/textv0.40.0indirect
Gogolang.org/x/timev0.15.0indirect
Gogolang.org/x/toolsv0.48.0indirect
Gogomodules.xyz/jsonpatch/v2v2.5.0indirect
Gogoogle.golang.org/genprotov0.0.0-20260810153831-ec0a7760b754indirect
Gogoogle.golang.org/genproto/googleapis/apiv0.0.0-20260807164820-c8921c73eeeaindirect
Gogoogle.golang.org/genproto/googleapis/rpcv0.0.0-20260807164820-c8921c73eeeaindirect
Gogopkg.in/evanphx/json-patch.v4v4.13.0indirect
Gogopkg.in/yaml.v3v3.0.1indirect
Gok8s.io/gengo/v2v2.0.0-20250922181213-ec3ebc5fd46bindirect
Gok8s.io/kube-openapiv0.0.0-20260317180543-43fb72c5454aindirect
Goknative.dev/networkingv0.0.0-20260727162500-c7a7b772cac9indirect
Goknative.dev/pkgv0.0.0-20260727151759-521cb33b33ddindirect
Gosigs.k8s.io/jsonv0.0.0-20250730193827-2d320260d730indirect
Gosigs.k8s.io/randfillv1.0.0indirect
Gosigs.k8s.io/structured-merge-diff/v6v6.3.3indirect
Gosigs.k8s.io/yamlv1.6.0indirect
Dependency advisories 3

This repository publishes no package the index resolves, so its own dependency graph was assessed — 107 packages, which also include development and test pins that never ship: 3 carry known advisories, of which 1 are direct.

PackageVersionRelationSeverityAdvisoriesFixed in
github.com/aws/aws-sdk-gov1.55.8directunknown2—
golang.org/x/cryptov0.54.0indirectunknown1—
golang.org/x/modv0.38.0indirectunknown21.27.0-rc.3

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.

The message is kept through sign-in.

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 — Go.