Public record
Software health reportschema 0.16.0 · metrics 2.10.0 · 2026-07-21 01:16 UTC

tree-sitter / tree-sitter-c-sharp

C# Grammar for tree-sitter

JavaScript · C# · CMIT★ 315 stars⑂ 99 forkssince Nov 2016View on GitHub ↗

tree-sitter/tree-sitter-c-sharp holds a health index of 81 out of 100, placing it in the Excellent band. It scores highest on Sustainability & Governance (83/100) and lowest on Security (52/100). It was last updated today. 2 contributors account for most of its recent work.

81
overall / 100
Excellent

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.

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

Ownership

tree-sitterOrganization
2,572 followers56 public repossince Feb 2016

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
Gogithub.com/tree-sitter/tree-sitter-c-sharpv0.23.5-2097 days ago
crates.iotree-sitter-c-sharp0.23.5587,7171097 days agoc-sharpincrementalparsingtree-sittertext-editors
npmtree-sitter-c-sharp0.23.5754,4411797 days agoincrementalparsingtree-sitterc-sharp
PyPItree-sitter-c-sharp0.23.5-897 days agoincrementalparsingtree-sitterc-sharp

Metrics by category

Vitality

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

63Moderate · 21% of overall
How it's scored
36/36Push recencylast push 0 days ago
7.6/36Commit cadence11/52 weeks with commits
12.9/18Commit volume26 commits in the last year
3/10OpenSSF Scorecard: Maintained4 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 3
Inputs used
commits_last_year26
human_commit_share
days_since_last_push0
active_weeks_last_year11
How it's scored
27/27Ships releases5 releases published
27/36Release recencylatest release 97 days ago
12.6/27Release cadencea release every ~326.8 days
0/10OpenSSF Scorecard: Signed-ReleasesProject has not signed or included provenance with any releases.
Inputs used
releases_count5
latest_release_tagv0.23.5
releases_from_tagsno
days_since_latest_release97
mean_days_between_releases326.8

Community & Adoption

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

68Good · 17% of overall
How it's scored
40.5/60Stars315 stars
16.6/25Forks99 forks
5.8/15Watchers12 watchers
Inputs used
forks99
stars315
watchers12
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
22.5/22.5Licenserecognized 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_badges
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_services
has_pull_request_templateno
How it's scored
80/80Monthly downloads1,342,158 downloads/month across crates, go, npm, pypi
0/20Registry dependentsnot reported by this ecosystem
Inputs used
packagesgithub.com/tree-sitter/tree-sitter-c-sharp, tree-sitter-c-sharp, tree-sitter-c-sharp, tree-sitter-c-sharp
dependents
ecosystemscrates, go, npm, pypi
total_downloads4,441,547
monthly_downloads1,342,158
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?

83Excellent · 23% of overall
How it's scored
25.2/54Bus factor2 contributor(s) cover half of all commits
12/22.5Commit distributiontop contributor authored 47% of commits
13.5/13.5Contributor breadth36 contributors
10/10OpenSSF Scorecard: Contributorsproject has 16 contributing companies or organizations
Inputs used
bus_factor2
contributors_sampled36
top_contributor_share0.467
How it's scored
34.4/42Issue resolution82% of issues closed
25.7/30PR acceptance232/271 decided PRs merged
0/13Newcomer PR acceptanceno first-time contributor's PR decided in 30d
7.5/15OpenSSF Scorecard: Code-ReviewFound 14/25 approved changesets -- score normalized to 5
Inputs used
merged_prs232
open_issues29
closed_issues130
prs_merged_7d
prs_decided_7d
prs_merged_30d
prs_decided_30d
issue_closed_ratio0.818
closed_unmerged_prs39
first_time_authors_30d
first_time_prs_merged_30d
first_time_prs_decided_30d
Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.
How it's scored
30/30Ownership backingorganization-owned
0/20Verified domainverified-domain status not read for this organization
24.5/25Owner reach2,572 followers of tree-sitter
24.8/25Track record56 public repos, account ~10 yr old
Inputs used
followers2,572
owner_typeOrganization
is_verified
owner_logintree-sitter
public_repos56
account_age_days3,811
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable4 package(s) on crates, go, npm, pypi
35/35Publish recencylatest publish 97 days ago
20/20Version history20 published versions
20/20Not deprecatedactive, not deprecated or yanked
Inputs used
packagesgithub.com/tree-sitter/tree-sitter-c-sharp, tree-sitter-c-sharp, tree-sitter-c-sharp, tree-sitter-c-sharp
ecosystemscrates, go, npm, pypi
any_deprecatedno
min_days_since_publish97

Engineering Quality

Are baseline engineering and documentation practices in place?

76Good · 19% of overall
How it's scored
24/24CI workflows4 workflow(s)
24/24Tests present
16/16Linter configeslint.config.mjs
0/9.6Pre-commit hooks
6.4/6.4.editorconfig
6/20OpenSSF Scorecard: CI-Tests10 out of 30 merged PRs checked by a CI test -- score normalized to 3
Inputs used
has_ciyes
has_testsyes
has_editorconfigyes
has_linter_configyes
has_precommit_configno
How it's scored
30/30README
0/25Documentation directory
15/15Documentation / homepage sitehttps://docs.rs/tree-sitter-c-sharp
10/10Repository description
10/10Topics3 topics
10/10Wiki
Inputs used
topicstree-sitter, c-sharp, parser
has_wikiyes
homepage
docs_sitehttps://docs.rs/tree-sitter-c-sharp
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

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

52Moderate · 16% of overall
How it's scored
7.5/7.5Binary-Artifactsno binaries found in the repo
2.2/7.5Branch-Protectionbranch protection is not maximal on development and all release branches
0.8/2.5CI-Tests10 out of 30 merged PRs checked by a CI test -- score normalized to 3
0/2.5CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
3.8/7.5Code-ReviewFound 14/25 approved changesets -- score normalized to 5
2.5/2.5Contributorsproject has 16 contributing companies or organizations
10/10Dangerous-Workflowno dangerous workflow patterns detected
7.5/7.5Dependency-Update-Toolupdate tool detected
0/5Fuzzingproject is not fuzzed
2.5/2.5Licenselicense file detected
2.2/7.5Maintained4 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 3
0/5Packagingno data
0.5/5Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 1
0/5SASTSAST tool is not run on all commits -- score normalized to 0
0/5Security-Policysecurity policy file not detected
0/7.5Signed-ReleasesProject has not signed or included provenance with any releases.
0/7.5Token-Permissionsdetected GitHub workflow tokens with excessive permissions
0/7.5Vulnerabilities14 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated17
scorecard_versionv5.5.0
checks_inconclusive1
scorecard_aggregate4
Excluded from scoring (no data or not applicable): Packaging. Remaining weights renormalized.

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisoriesno direct dependency carries a known advisory
0/25Indirect dependencies free of known advisoriestransitive set not separable from development and test dependencies in this scope
0/40No advisories left outstandingno advisory carries a publication date
Inputs used
sourceosv
advisories14
affected_packages6
assessed_packages154
unassessed_packages0
affected_by_severitycritical 1, high 4, moderate 1
direct_affected_packages0
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 154 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.

55Moderate · 4% of overall
How it's scored
0/45Agent instructionsno CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
0/40Legible commit historyno data
Inputs used
has_llms_txtno
llms_txt_url
legible_history_share
agent_instruction_files
agent_instruction_max_bytes
Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.
How it's scored
18/18One-command bootstrapMakefile
22/22Automated tests
11/11Lint / format configeslint.config.mjs
11/11Static type checkingbindings/python/tree_sitter_c_sharp/py.typed
10/10Reproducible environmentlockfile
0/10Demonstrated agent practiceno data
5/8Automated maintenancedependency automation configured, none observed in the sampled commits
1/10OpenSSF Scorecard: Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 1
Inputs used
has_nixno
has_testsyes
lockfilesCargo.lock, go.sum, package-lock.json
has_dockerfileno
typed_languageno
bootstrap_filesMakefile
has_devcontainerno
has_linter_configyes
typecheck_configsbindings/python/tree_sitter_c_sharp/py.typed
agent_commit_share
toolchain_manifests
dependency_bot_commit_share0
Excluded from scoring (no data or not applicable): Demonstrated agent practice. Remaining weights renormalized.
How it's scored
27/45Type-checkable codeJavaScript with type-check config (bindings/python/tree_sitter_c_sharp/py.typed)
51.3/55Manageable file sizes2/30 source files over 60KB
Inputs used
primary_languageJavaScript
largest_source_bytes32,021,728
source_files_sampled30
oversized_source_files2

Key facts

315GitHub stars
36contributors
26commits, last 12 months
0days since last push
5releases
2bus factor
29open issues
crates.io, Go, npm, PyPIpackage ecosystems

Data collection warnings

  • deps.dev does not index crates:tree-sitter-c-sharp@0.23.5; advisories assessed against the repository dependency graph instead

More detail

OpenSSF Scorecard 4.0 / 10
4.0aggregate

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 · 2026-07-21 01:15 UTC

10Binary-Artifactsno binaries found in the repo
3Branch-Protectionbranch protection is not maximal on development and all release branches
3CI-Tests10 out of 30 merged PRs checked by a CI test -- score normalized to 3
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
5Code-ReviewFound 14/25 approved changesets -- score normalized to 5
10Contributorsproject has 16 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
3Maintained4 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 3
n/aPackagingpackaging workflow not detected
1Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 1
0SASTSAST tool is not run on all commits -- score normalized to 0
0Security-Policysecurity policy file not detected
0Signed-ReleasesProject has not signed or included provenance with any releases.
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
0Vulnerabilities14 existing vulnerabilities detected
Direct dependencies 4
RegistryPackageVersion constraintManifest
crates.iotree-sitter-language0.1Cargo.toml
Gogithub.com/tree-sitter/go-tree-sitterv0.24.0go.mod
npmnode-addon-api^8.2.2package.json
npmnode-gyp-build^4.8.4package.json
All dependencies 154

Full resolved dependency set from the GitHub dependency graph: 4 direct and 150 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
crates.iotree-sitter-language0.1.2direct
Gogithub.com/tree-sitter/go-tree-sitter0.24.0direct
npmnode-addon-api8.5.0direct
npmnode-gyp-build4.8.4direct
crates.ioaho-corasick1.1.3indirect
crates.iocc1.2.53indirect
crates.ioequivalent1.0.2indirect
crates.iofind-msvc-tools0.1.8indirect
crates.iohashbrown0.16.1indirect
crates.ioindexmap2.13.0indirect
crates.ioitoa1.0.17indirect
crates.iomemchr2.7.4indirect
crates.ioproc-macro21.0.105indirect
crates.ioquote1.0.43indirect
crates.ioregex1.11.1indirect
crates.ioregex-automata0.4.8indirect
crates.ioregex-syntax0.8.5indirect
crates.ioserde1.0.228indirect
crates.ioserde_core1.0.228indirect
crates.ioserde_derive1.0.228indirect
crates.ioserde_json1.0.149indirect
crates.ioshlex1.3.0indirect
crates.iostreaming-iterator0.1.9indirect
crates.iosyn2.0.114indirect
crates.iotree-sitter0.25.10indirect
crates.iounicode-ident1.0.22indirect
crates.iozmij1.0.15indirect
Gogithub.com/mattn/go-pointer0.0.1indirect
npm@es-joy/jsdoccomment0.49.0indirect
npm@eslint-community/eslint-utils4.4.0indirect
npm@eslint-community/regexpp4.12.1indirect
npm@eslint/config-array0.21.0indirect
npm@eslint/config-helpers0.3.0indirect
npm@eslint/core0.15.1indirect
npm@eslint/eslintrc3.3.1indirect
npm@eslint/js9.32.0indirect
npm@eslint/object-schema2.1.6indirect
npm@eslint/plugin-kit0.3.4indirect
npm@humanfs/core0.19.1indirect
npm@humanfs/node0.16.6indirect
npm@humanwhocodes/module-importer1.0.1indirect
npm@humanwhocodes/retry0.3.1indirect
npm@humanwhocodes/retry0.4.3indirect
npm@pkgr/core0.1.1indirect
npm@types/estree1.0.6indirect
npm@types/json-schema7.0.15indirect
npmacorn8.15.0indirect
npmacorn-jsx5.3.2indirect
npmajv6.12.6indirect
npmansi-styles4.3.0indirect
npmare-docs-informative0.0.2indirect
npmargparse2.0.1indirect
npmbalanced-match1.0.2indirect
npmbase64-js1.5.1indirect
npmbl4.1.0indirect
npmbrace-expansion1.1.12indirect
npmbuffer5.7.1indirect
npmcallsites3.1.0indirect
npmchalk4.1.2indirect
npmchownr1.1.4indirect
npmcolor-convert2.0.1indirect
npmcolor-name1.1.4indirect
npmcomment-parser1.4.1indirect
npmconcat-map0.0.1indirect
npmcross-spawn7.0.6indirect
npmdebug4.3.7indirect
npmdeep-is0.1.4indirect
npmend-of-stream1.4.4indirect
npmes-module-lexer1.5.4indirect
npmescape-string-regexp4.0.0indirect
npmeslint9.32.0indirect
npmeslint-config-treesitter1.0.2indirect
npmeslint-plugin-jsdoc50.4.1indirect
npmeslint-scope8.4.0indirect
npmeslint-visitor-keys3.4.3indirect
npmeslint-visitor-keys4.2.1indirect
npmespree10.4.0indirect
npmesquery1.6.0indirect
npmesrecurse4.3.0indirect
npmestraverse5.3.0indirect
npmesutils2.0.3indirect
npmfast-deep-equal3.1.3indirect
npmfast-json-stable-stringify2.1.0indirect
npmfast-levenshtein2.0.6indirect
npmfile-entry-cache8.0.0indirect
npmfind-up5.0.0indirect
npmflat-cache4.0.1indirect
npmflatted3.3.1indirect
npmfs-constants1.0.0indirect
npmglob-parent6.0.2indirect
npmglobals14.0.0indirect
npmhas-flag4.0.0indirect
npmieee7541.2.1indirect
npmignore5.3.2indirect
npmimport-fresh3.3.1indirect
npmimurmurhash0.1.4indirect
npminherits2.0.4indirect
npmis-extglob2.1.1indirect
npmis-glob4.0.3indirect
npmisexe2.0.0indirect
npmjs-yaml4.1.0indirect
npmjsdoc-type-pratt-parser4.1.0indirect
npmjson-buffer3.0.1indirect
npmjson-schema-traverse0.4.1indirect
npmjson-stable-stringify-without-jsonify1.0.1indirect
npmkeyv4.5.4indirect
npmlevn0.4.1indirect
npmlocate-path6.0.0indirect
npmlodash.merge4.6.2indirect
npmminimatch3.1.2indirect
npmminimist1.2.8indirect
npmmkdirp-classic0.5.3indirect
npmms2.1.3indirect
npmnatural-compare1.4.0indirect
npmnode-abi3.62.0indirect
npmnpm-run-path3.1.0indirect
npmonce1.4.0indirect
npmoptionator0.9.4indirect
npmp-limit3.1.0indirect
npmp-locate5.0.0indirect
npmparent-module1.0.1indirect
npmparse-imports2.2.1indirect
npmpath-exists4.0.0indirect
npmpath-key3.1.1indirect
npmprebuildify6.0.1indirect
npmprelude-ls1.2.1indirect
npmpump3.0.0indirect
npmpunycode2.3.1indirect
npmreadable-stream3.6.2indirect
npmresolve-from4.0.0indirect
npmsafe-buffer5.2.1indirect
npmsemver7.6.3indirect
npmshebang-command2.0.0indirect
npmshebang-regex3.0.0indirect
npmslashes3.0.12indirect
npmspdx-exceptions2.5.0indirect
npmspdx-expression-parse4.0.0indirect
npmspdx-license-ids3.0.20indirect
npmstring_decoder1.3.0indirect
npmstrip-json-comments3.1.1indirect
npmsupports-color7.2.0indirect
npmsynckit0.9.2indirect
npmtar-fs2.1.1indirect
npmtar-stream2.2.0indirect
npmtree-sitter0.25.0indirect
npmtree-sitter-cli0.26.5indirect
npmtslib2.7.0indirect
npmtype-check0.4.0indirect
npmuri-js4.4.1indirect
npmutil-deprecate1.0.2indirect
npmwhich2.0.2indirect
npmword-wrap1.2.5indirect
npmwrappy1.0.2indirect
npmyocto-queue0.1.0indirect
Dependency advisories 6

This repository publishes no package the index resolves, so its own dependency graph was assessed — 154 packages, which also include development and test pins that never ship: 6 carry known advisories, of which 0 are direct.

PackageVersionRelationSeverityAdvisoriesFixed in
flatted3.3.1indirectcritical23.4.2
brace-expansion1.1.12indirecthigh25.0.7
js-yaml4.1.0indirecthigh34.3.0
minimatch3.1.2indirecthigh310.2.3
tar-fs2.1.1indirecthigh33.1.1
ajv6.12.6indirectmoderate18.18.0

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 v0.16.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statisticsGo, crates.io, npm, PyPI.