Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-10-20 19:01 UTC

google / ksp

Kotlin Symbol Processing API

KotlinApache-2.0★ 3,484 stars⑂ 424 forkssince Sep 2020View on GitHub ↗

google/ksp holds a health index of 94 out of 100, placing it in the Exceptional band. It scores highest on Vitality (95/100) and lowest on Security (60/100). It was last updated today. 2 contributors account for most of its recent work.

94
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.

94
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 81 is calibrated to 94 on the published index scale (record calibration 2026-08-02).

Ownership

GoogleOrganization · verified domain
80,610 followers2,925 public repossince Jan 2012

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

Metrics by category

Vitality

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

95Exceptional · 21% of overall

Development activity

99Exceptional
How it's scored
36/36Push recency — last push 0 days ago
34.6/36Commit cadence — 50/52 weeks with commits
18/18Commit volume — 603 commits in the last year
10/10OpenSSF Scorecard: Maintained — 30 commit(s) and 13 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year603
human_commit_share1
days_since_last_push0
active_weeks_last_year50

Release discipline

90Excellent
How it's scored
27/27Ships releases — 100 releases published
36/36Release recency — latest release 41 days ago
27/27Release cadence — a release every ~29.7 days
0/10OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases.
Inputs used
releases_count100
latest_release_tag2.3.12
releases_from_tagsno
days_since_latest_release41
mean_days_between_releases29.7

Community & Adoption

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

87Excellent · 17% of overall

Popularity & adoption

89Excellent
How it's scored
57.5/60Stars — 3,484 stars
21.9/25Forks — 424 forks
9.9/15Watchers — 62 watchers
Inputs used
forks424
stars3,484
watchers62
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_badges0
has_contributingyes
has_issue_templateno
has_code_of_conductyes
readme_badge_services—
has_pull_request_templateno

Sustainability & Governance

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

84Excellent · 23% of overall

Maintainer resilience (bus factor)

63Moderate
How it's scored
25.2/54Bus factor — 2 contributor(s) cover half of all commits
14.2/22.5Commit distribution — top contributor authored 37% of commits
13.5/13.5Contributor breadth — 100 contributors
10/10OpenSSF Scorecard: Contributors — project has 23 contributing companies or organizations
Inputs used
bus_factor2
contributors_sampled100
top_contributor_share0.367

Issue & PR responsiveness

93Exceptional
How it's scored
38.2/42Issue resolution — 91% of issues closed
26.7/30PR acceptance — 1,582/1,775 decided PRs merged
13/13Newcomer PR acceptance — 2/2 first-time contributors' PRs merged in 30d
15/15OpenSSF Scorecard: Code-Review — all changesets reviewed
Inputs used
merged_prs1,582
open_issues126
closed_issues1,263
prs_merged_7d5
prs_decided_7d5
prs_merged_30d22
prs_decided_30d26
issue_closed_ratio0.909
closed_unmerged_prs193
first_time_authors_30d2
first_time_prs_merged_30d2
first_time_prs_decided_30d2

Ownership & stewardship

100Exceptional
How it's scored
30/30Ownership backing — organization-owned
20/20Verified domain
25/25Owner reach — 80,610 followers of google
25/25Track record — 2,925 public repos, account ~14 yr old
Inputs used
followers80,610
owner_typeOrganization
is_verifiedyes
owner_logingoogle
public_repos2,925
account_age_days5,389

Engineering Quality

Are baseline engineering and documentation practices in place?

80Excellent · 19% of overall

Engineering practices

74Good
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
20/20OpenSSF Scorecard: CI-Tests — 21 out of 21 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsyes
has_editorconfigyes
has_linter_configno
has_precommit_configno

Documentation

90Excellent
How it's scored
30/30README
25/25Documentation directory
15/15Documentation / homepage site — https://github.com/google/ksp
10/10Repository description
0/10Topics
10/10Wiki
Inputs used
topics—
has_wikiyes
homepagehttps://github.com/google/ksp
docs_sitehttps://github.com/google/ksp
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

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

60Moderate · 16% of overall

Security posture

60Moderate
How it's scored
1.5/7.5Binary-Artifacts — binaries present in source code
0/7.5Branch-Protection — branch protection not enabled on development/release branches
2.5/2.5CI-Tests — 21 out of 21 merged PRs checked by a CI test -- score normalized to 10
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
7.5/7.5Code-Review — all changesets reviewed
2.5/2.5Contributors — project has 23 contributing companies or organizations
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 13 issue activity found in the last 90 days -- score normalized to 10
5/5Packaging — packaging workflow detected
5/5Pinned-Dependencies — all dependencies are pinned
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
5/5Security-Policy — security policy file detected
0/7.5Signed-Releases — Project has not signed or included provenance with any releases.
6/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
7.5/7.5Vulnerabilities — 0 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated18
scorecard_versionv5.5.0
checks_inconclusive0
scorecard_aggregate6

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.

61Moderate · 4% of overall

Agent context & guidance

29At Risk
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://kotlinlang.org/llms.txt)
13.9/40Legible commit history — 26 of 100 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtyes
llms_txt_urlhttps://kotlinlang.org/llms.txt
legible_history_share0.26
agent_instruction_files—
agent_instruction_max_bytes—

Verify loop (build / test / typecheck)

56Moderate
How it's scored
12.6/18One-command bootstrap — api/build.gradle.kts, benchmark/build.gradle.kts, benchmark/exhaustive-processor/build.gradle.kts (toolchain convention, no task runner)
22/22Automated tests
0/11Lint / format config
11/11Static type checking — Kotlin (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
10/10OpenSSF Scorecard: Pinned-Dependencies — all dependencies are pinned
Inputs used
has_nixno
has_testsyes
lockfiles—
has_dockerfileno
typed_languageyes
bootstrap_files—
has_devcontainerno
has_linter_configno
typecheck_configs—
agent_commit_share0
toolchain_manifestsapi/build.gradle.kts, benchmark/build.gradle.kts, benchmark/exhaustive-processor/build.gradle.kts, benchmark/exhaustive-processor/processor/build.gradle.kts, build.gradle.kts, buildSrc/build.gradle.kts, cmdline-parser-gen/build.gradle.kts, common-deps/build.gradle.kts, common-util/build.gradle.kts, examples/hello-world/annotations/build.gradle.kts, examples/hello-world/app/build.gradle.kts, examples/hello-world/build.gradle.kts, examples/hello-world/processor/build.gradle.kts, examples/multiplatform/build.gradle.kts, examples/multiplatform/processors/build.gradle.kts, examples/multiplatform/workload/build.gradle.kts, examples/playground/annotations/build.gradle.kts, examples/playground/build.gradle.kts, examples/playground/processors/build.gradle.kts, examples/playground/workload/build.gradle.kts, gradle-plugin/build.gradle.kts, integration-tests/build.gradle.kts, integration-tests/src/test/resources/android-data-binding-builtinkotlin/app/build.gradle.kts, integration-tests/src/test/resources/android-data-binding-builtinkotlin/build.gradle.kts, integration-tests/src/test/resources/android-data-binding/app/build.gradle.kts, integration-tests/src/test/resources/android-data-binding/build.gradle.kts, integration-tests/src/test/resources/android-rerun/build.gradle.kts, integration-tests/src/test/resources/android-rerun/lib/common/collections/build.gradle.kts, integration-tests/src/test/resources/android-rerun/lib/common/media/build.gradle.kts, integration-tests/src/test/resources/android-view-binding/app/build.gradle.kts, integration-tests/src/test/resources/android-view-binding/build.gradle.kts, integration-tests/src/test/resources/buildcache-incremental/build.gradle.kts, integration-tests/src/test/resources/buildcache-incremental/test-processor/build.gradle.kts, integration-tests/src/test/resources/buildcache-incremental/workload/build.gradle.kts, integration-tests/src/test/resources/cmd-options/build.gradle.kts, integration-tests/src/test/resources/cmd-options/processors/build.gradle.kts, integration-tests/src/test/resources/cmd-options/workload/build.gradle.kts, integration-tests/src/test/resources/hmpp/build.gradle.kts, integration-tests/src/test/resources/hmpp/test-processor/build.gradle.kts, integration-tests/src/test/resources/hmpp/workload/build.gradle.kts, integration-tests/src/test/resources/incremental-annotation-argument-class-references/build.gradle.kts, integration-tests/src/test/resources/incremental-annotation-argument-class-references/downstream/build.gradle.kts, integration-tests/src/test/resources/incremental-annotation-argument-class-references/processor/build.gradle.kts, integration-tests/src/test/resources/incremental-annotation-argument-class-references/upstream/build.gradle.kts, integration-tests/src/test/resources/incremental-classpath/build.gradle.kts, integration-tests/src/test/resources/incremental-classpath/l1/build.gradle.kts, integration-tests/src/test/resources/incremental-classpath/l2/build.gradle.kts, integration-tests/src/test/resources/incremental-classpath/l3/build.gradle.kts, integration-tests/src/test/resources/incremental-classpath/l4/build.gradle.kts, integration-tests/src/test/resources/incremental-classpath/l5/build.gradle.kts, integration-tests/src/test/resources/incremental-classpath/validator/build.gradle.kts, integration-tests/src/test/resources/incremental-classpath/workload/build.gradle.kts, integration-tests/src/test/resources/incremental-multi-chain/build.gradle.kts, integration-tests/src/test/resources/incremental-multi-chain/processors/build.gradle.kts, integration-tests/src/test/resources/incremental-multi-chain/workload/build.gradle.kts, integration-tests/src/test/resources/incremental-removal/build.gradle.kts, integration-tests/src/test/resources/incremental-removal/validator/build.gradle.kts, integration-tests/src/test/resources/incremental-removal/workload/build.gradle.kts, integration-tests/src/test/resources/incremental-removal2/build.gradle.kts, integration-tests/src/test/resources/incremental-removal2/validator/build.gradle.kts, integration-tests/src/test/resources/incremental-removal2/workload/build.gradle.kts, integration-tests/src/test/resources/incremental/build.gradle.kts, integration-tests/src/test/resources/incremental/validator/build.gradle.kts, integration-tests/src/test/resources/incremental/workload/build.gradle.kts, integration-tests/src/test/resources/init-plus-provider/build.gradle.kts, integration-tests/src/test/resources/init-plus-provider/provider-processor/build.gradle.kts, integration-tests/src/test/resources/init-plus-provider/workload/build.gradle.kts, integration-tests/src/test/resources/javaNestedClass/build.gradle.kts, integration-tests/src/test/resources/javaNestedClass/test-processor/build.gradle.kts, integration-tests/src/test/resources/javaNestedClass/workload/build.gradle.kts, integration-tests/src/test/resources/kapt3/build.gradle.kts, integration-tests/src/test/resources/kapt3/test-processor/build.gradle.kts, integration-tests/src/test/resources/kapt3/workload/build.gradle.kts, integration-tests/src/test/resources/kmp/annotations/build.gradle.kts, integration-tests/src/test/resources/kmp/build.gradle.kts, integration-tests/src/test/resources/kmp/myDependency/build.gradle.kts, integration-tests/src/test/resources/kmp/test-processor/build.gradle.kts, integration-tests/src/test/resources/kmp/workload-android/build.gradle.kts, integration-tests/src/test/resources/kmp/workload-androidNative/build.gradle.kts, integration-tests/src/test/resources/kmp/workload-js/build.gradle.kts, integration-tests/src/test/resources/kmp/workload-jvm/build.gradle.kts, integration-tests/src/test/resources/kmp/workload-klib/build.gradle.kts, integration-tests/src/test/resources/kmp/workload-linuxX64/build.gradle.kts, integration-tests/src/test/resources/kmp/workload-wasm/build.gradle.kts, integration-tests/src/test/resources/kmp/workload/build.gradle.kts, integration-tests/src/test/resources/kotlin-consts-in-java/build.gradle.kts, integration-tests/src/test/resources/kotlin-consts-in-java/test-processor/build.gradle.kts, integration-tests/src/test/resources/kotlin-consts-in-java/workload/build.gradle.kts, integration-tests/src/test/resources/kotlin-inject/build.gradle.kts, integration-tests/src/test/resources/kotlin-inject/workload/build.gradle.kts, integration-tests/src/test/resources/legacy-kapt/app/build.gradle.kts, integration-tests/src/test/resources/legacy-kapt/build.gradle.kts, integration-tests/src/test/resources/nullability-annotations/build.gradle.kts, integration-tests/src/test/resources/nullability-annotations/test-processor/build.gradle.kts, integration-tests/src/test/resources/nullability-annotations/workload/build.gradle.kts, integration-tests/src/test/resources/on-error/build.gradle.kts, integration-tests/src/test/resources/on-error/on-error-processor/build.gradle.kts, integration-tests/src/test/resources/on-error/workload/build.gradle.kts, integration-tests/src/test/resources/only-resources-file/build.gradle.kts, integration-tests/src/test/resources/only-resources-file/test-processor/build.gradle.kts, integration-tests/src/test/resources/only-resources-file/workload/build.gradle.kts, integration-tests/src/test/resources/output-deps/build.gradle.kts, integration-tests/src/test/resources/output-deps/test-processor/build.gradle.kts, integration-tests/src/test/resources/output-deps/workload/build.gradle.kts, integration-tests/src/test/resources/playground-android-builtinkotlin/build.gradle.kts, integration-tests/src/test/resources/playground-android-builtinkotlin/test-processor/build.gradle.kts, integration-tests/src/test/resources/playground-android-builtinkotlin/workload/build.gradle.kts, integration-tests/src/test/resources/playground-android-multi/application/build.gradle.kts, integration-tests/src/test/resources/playground-android-multi/build.gradle.kts, integration-tests/src/test/resources/playground-android-multi/test-processor/build.gradle.kts, integration-tests/src/test/resources/playground-android-multi/workload/build.gradle.kts, integration-tests/src/test/resources/playground-android/build.gradle.kts, integration-tests/src/test/resources/playground-android/test-processor/build.gradle.kts, integration-tests/src/test/resources/playground-android/workload/build.gradle.kts, integration-tests/src/test/resources/playground-mpp/build.gradle.kts, integration-tests/src/test/resources/playground-mpp/test-processor/build.gradle.kts, integration-tests/src/test/resources/playground-mpp/workload/build.gradle.kts, integration-tests/src/test/resources/playground/build.gradle.kts, integration-tests/src/test/resources/playground/test-processor/build.gradle.kts, integration-tests/src/test/resources/playground/workload/build.gradle.kts, integration-tests/src/test/resources/srcs-gen/build.gradle.kts, integration-tests/src/test/resources/srcs-gen/workload/build.gradle.kts, integration-tests/src/test/resources/test-processor/build.gradle.kts, integration-tests/src/test/resources/test-processor/test-processor/build.gradle.kts, integration-tests/src/test/resources/test-processor/workload/build.gradle.kts, kotlin-analysis-api/build.gradle.kts, symbol-processing-aa-embeddable/build.gradle.kts, symbol-processing/build.gradle.kts, test-utils/build.gradle.kts
dependency_bot_commit_share0

Code legibility for models

100Exceptional
How it's scored
45/45Type-checkable code — Kotlin (statically typed)
55/55Manageable file sizes — 0/805 source files over 60KB
Inputs used
primary_languageKotlin
largest_source_bytes59,336
source_files_sampled805
oversized_source_files0

Machine-readable interfaces

100Exceptional
How it's scored
0/40API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software
0/20MCP server — not applicable to this kind of software
40/40Runnable examples — example, examples
Inputs used
example_dirsexample, examples
has_mcp_signalno
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

3,484GitHub stars
100contributors
603commits, last 12 months
0days since last push
100releases
2bus factor
126open issues
Mavenpackage ecosystems

Data collection warnings

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

More detail

Star and fork history 0 ★ / 424 ⇿
0Stars
424Forks
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.

010020030040050041152020-092023-102026-10
Major 0Minor 1Patch 12

Each point covers 6 days.

OpenSSF Scorecard 6.0 / 10
6.0aggregate

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 · 2026-10-20 19:00 UTC

2Binary-Artifactsbinaries present in source code
0Branch-Protectionbranch protection not enabled on development/release branches
10CI-Tests21 out of 21 merged PRs checked by a CI test -- score normalized to 10
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
10Code-Reviewall changesets reviewed
10Contributorsproject has 23 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
0Dependency-Update-Toolno update tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 13 issue activity found in the last 90 days -- score normalized to 10
10Packagingpackaging workflow detected
10Pinned-Dependenciesall dependencies are pinned
0SASTSAST tool is not run on all commits -- score normalized to 0
10Security-Policysecurity policy file detected
0Signed-ReleasesProject has not signed or included provenance with any releases.
8Token-Permissionsdetected GitHub workflow tokens with excessive permissions
10Vulnerabilities0 existing vulnerabilities detected
All dependencies 0

Full resolved dependency set from the GitHub dependency graph: 0 direct and 0 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
Dependency advisories not assessed

Advisory matching could not run for this report: No resolved dependencies to assess

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.

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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.