Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-08-27 19:03 UTC

tree-sitter / tree-sitter-typescript

TypeScript grammar for tree-sitter

JavaScript · CMIT★ 531 stars⑂ 179 forkssince Feb 2017View on GitHub ↗

tree-sitter/tree-sitter-typescript holds a health index of 34 out of 100, placing it in the At Risk band. It scores highest on Sustainability & Governance (72/100) and lowest on Vitality (21/100). It was last updated 363 days ago. 2 contributors account for most of its recent work.

34
overall / 100
At Risk

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.

34
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 56 is calibrated to 59 on the published index scale (record calibration 2026-08-02).

Ownership

tree-sitterOrganization
2,654 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-typescriptv0.23.2-41654 days ago
crates.iotree-sitter-typescript0.23.21,867,33213654 days agoincrementalparsingtree-sittertsxtypescripttext-editors
npmtree-sitter-typescript0.23.23,099,95437654 days agoincrementalparsingtree-sittertypescripttsx
PyPItree-sitter-typescript0.23.28,442,6795654 days agoincrementalparsingtree-sittertypescripttsx

Metrics by category

Vitality

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

21At Risk · 21% of overall
How it's scored
3.6/36Push recencylast push 363 days ago
0/36Commit cadence0/52 weeks with commits
0/18Commit volume0 commits in the last year
0/10OpenSSF Scorecard: Maintained0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Inputs used
commits_last_year0
human_commit_share1
days_since_last_push363
active_weeks_last_year0
How it's scored
27/27Ships releases4 releases published
7.2/36Release recencylatest release 654 days ago
12.6/27Release cadencea release every ~134.2 days
0/10OpenSSF Scorecard: Signed-ReleasesProject has not signed or included provenance with any releases.
Inputs used
releases_count4
latest_release_tagv0.23.2
releases_from_tagsno
days_since_latest_release654
mean_days_between_releases134.2

Community & Adoption

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

70Good · 17% of overall
How it's scored
44.2/60Stars531 stars
18.8/25Forks179 forks
5.6/15Watchers11 watchers
Inputs used
forks179
stars531
watchers11
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_badges0
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_services
has_pull_request_templateno
How it's scored
80/80Monthly downloads13,409,965 downloads/month across crates, go, npm, pypi
0/20Registry dependentsnot reported by this ecosystem
Inputs used
packagesgithub.com/tree-sitter/tree-sitter-typescript, tree-sitter-typescript, tree-sitter-typescript, tree-sitter-typescript
dependents
ecosystemscrates, go, npm, pypi
total_downloads13,045,507
monthly_downloads13,409,965
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?

72Good · 23% of overall
How it's scored
25.2/54Bus factor2 contributor(s) cover half of all commits
14.2/22.5Commit distributiontop contributor authored 37% of commits
13.5/13.5Contributor breadth35 contributors
10/10OpenSSF Scorecard: Contributorsproject has 25 contributing companies or organizations
Inputs used
bus_factor2
contributors_sampled35
top_contributor_share0.369
How it's scored
34.6/42Issue resolution82% of issues closed
25.1/30PR acceptance154/184 decided PRs merged
0/13Newcomer PR acceptanceno first-time contributor's PR decided in 30d
1.5/15OpenSSF Scorecard: Code-ReviewFound 3/20 approved changesets -- score normalized to 1
Inputs used
merged_prs154
open_issues28
closed_issues131
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio0.824
closed_unmerged_prs30
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.
How it's scored
30/30Ownership backingorganization-owned
0/20Verified domain
24.6/25Owner reach2,654 followers of tree-sitter
24.8/25Track record56 public repos, account ~10 yr old
Inputs used
followers2,654
owner_typeOrganization
is_verifiedno
owner_logintree-sitter
public_repos56
account_age_days3,849
How it's scored
25/25Published & resolvable4 package(s) on crates, go, npm, pypi
14/35Publish recencylatest publish 654 days ago
20/20Version history41 published versions
20/20Not deprecatedactive, not deprecated or yanked
Inputs used
packagesgithub.com/tree-sitter/tree-sitter-typescript, tree-sitter-typescript, tree-sitter-typescript, tree-sitter-typescript
ecosystemscrates, go, npm, pypi
any_deprecatedno
min_days_since_publish654

Engineering Quality

Are baseline engineering and documentation practices in place?

72Good · 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
0/20OpenSSF Scorecard: CI-Tests0 out of 7 merged PRs checked by a CI test -- score normalized to 0
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-typescript
10/10Repository description
10/10Topics3 topics
10/10Wiki
Inputs used
topicstypescript, tree-sitter, parser
has_wikiyes
homepage
docs_sitehttps://docs.rs/tree-sitter-typescript
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

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

42Weak · 16% of overall
How it's scored
7.5/7.5Binary-Artifactsno binaries found in the repo
3.8/7.5Branch-Protectionbranch protection is not maximal on development and all release branches
0/2.5CI-Tests0 out of 7 merged PRs checked by a CI test -- score normalized to 0
0/2.5CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
0.8/7.5Code-ReviewFound 3/20 approved changesets -- score normalized to 1
2.5/2.5Contributorsproject has 25 contributing companies or organizations
10/10Dangerous-Workflowno dangerous workflow patterns detected
0/7.5Dependency-Update-Toolno update tool detected
0/5Fuzzingproject is not fuzzed
2.5/2.5Licenselicense file detected
0/7.5Maintained0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
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
0/7.5Vulnerabilities21 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated17
scorecard_versionv5.5.0
checks_inconclusive1
scorecard_aggregate2.8
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
advisories21
affected_packages8
assessed_packages141
unassessed_packages0
affected_by_severitycritical 1, high 5, moderate 2
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 141 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 instructionsno CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
39.5/40Legible commit history74 of 100 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url
legible_history_share0.74
agent_instruction_files
agent_instruction_max_bytes
How it's scored
18/18One-command bootstrapMakefile, tsx/Makefile, typescript/Makefile
22/22Automated tests
11/11Lint / format configeslint.config.mjs
11/11Static type checkingbindings/python/tree_sitter_typescript/py.typed
10/10Reproducible environmentlockfile
0/10Demonstrated agent practiceno agent-authored commits among the last 100
0/8Automated maintenanceno automated dependency updates observed
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, tsx/Makefile, typescript/Makefile
has_devcontainerno
has_linter_configyes
typecheck_configsbindings/python/tree_sitter_typescript/py.typed
agent_commit_share0
toolchain_manifestsCargo.toml, go.mod
dependency_bot_commit_share0
How it's scored
27/45Type-checkable codeJavaScript with type-check config (bindings/python/tree_sitter_typescript/py.typed)
50.5/55Manageable file sizes3/37 source files over 60KB
Inputs used
primary_languageJavaScript
largest_source_bytes8,769,870
source_files_sampled37
oversized_source_files3
How it's scored
0/40API schema (OpenAPI/GraphQL/proto)not applicable to this kind of software
0/20MCP servernot applicable to this kind of software
40/40Runnable examplesexamples
Inputs used
example_dirsexamples
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

531GitHub stars
35contributors
0commits, last 12 months
363days since last push
4releases
2bus factor
28open issues
crates.io, Go, npm, PyPIpackage ecosystems

Data collection warnings

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

More detail

Star and fork history 0 ★ / 179 ⇿
0Stars
179Forks
4Releases

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.

0408012016020017052018-052022-072026-08
Major 0Minor 0Patch 4

Each point covers 8 days.

OpenSSF Scorecard 2.8 / 10
2.8aggregate

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 · 2026-08-27 19:03 UTC

10Binary-Artifactsno binaries found in the repo
5Branch-Protectionbranch protection is not maximal on development and all release branches
0CI-Tests0 out of 7 merged PRs checked by a CI test -- score normalized to 0
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
1Code-ReviewFound 3/20 approved changesets -- score normalized to 1
10Contributorsproject has 25 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
0Dependency-Update-Toolno update tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
0Maintained0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
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
0Vulnerabilities21 existing vulnerabilities detected
Direct dependencies 5
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^4.8.2package.json
npmtree-sitter-javascript^0.23.1package.json
All dependencies 141

Full resolved dependency set from the GitHub dependency graph: 5 direct and 136 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-api8.2.2direct
npmnode-gyp-build4.8.2direct
npmtree-sitter-javascript0.23.1direct
crates.ioaho-corasick1.1.3indirect
crates.iocc1.1.37indirect
crates.iomemchr2.7.4indirect
crates.ioregex1.11.1indirect
crates.ioregex-automata0.4.8indirect
crates.ioregex-syntax0.8.5indirect
crates.ioshlex1.3.0indirect
crates.iostreaming-iterator0.1.9indirect
crates.iotree-sitter0.24.4indirect
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-array0.18.0indirect
npm@eslint/core0.7.0indirect
npm@eslint/eslintrc3.1.0indirect
npm@eslint/js9.14.0indirect
npm@eslint/object-schema2.1.4indirect
npm@eslint/plugin-kit0.2.0indirect
npm@humanfs/core0.19.1indirect
npm@humanfs/node0.16.6indirect
npm@humanwhocodes/module-importer1.0.1indirect
npm@humanwhocodes/retry0.3.1indirect
npm@humanwhocodes/retry0.4.1indirect
npm@pkgr/core0.1.1indirect
npm@types/estree1.0.6indirect
npm@types/json-schema7.0.15indirect
npmacorn8.14.0indirect
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-expansion1.1.11indirect
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-spawn7.0.3indirect
npmdebug4.3.7indirect
npmdeep-is0.1.4indirect
npmend-of-stream1.4.4indirect
npmes-module-lexer1.5.4indirect
npmescape-string-regexp4.0.0indirect
npmeslint9.14.0indirect
npmeslint-config-treesitter1.0.2indirect
npmeslint-plugin-jsdoc50.4.1indirect
npmeslint-scope8.2.0indirect
npmeslint-visitor-keys3.4.3indirect
npmeslint-visitor-keys4.2.0indirect
npmespree10.3.0indirect
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-fresh3.3.0indirect
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-abi3.45.0indirect
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
npmtext-table0.2.0indirect
npmtree-sitter0.21.1indirect
npmtree-sitter-cli0.24.4indirect
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 8

This repository publishes no package the index resolves, so its own dependency graph was assessed — 141 packages, which also include development and test pins that never ship: 8 carry known advisories, of which 0 are direct.

PackageVersionRelationSeverityAdvisoriesFixed in
flatted3.3.1indirectcritical23.4.2
brace-expansion1.1.11indirecthigh55.0.9
cross-spawn7.0.3indirecthigh17.0.5
js-yaml4.1.0indirecthigh44.3.1
minimatch3.1.2indirecthigh310.2.3
tar-fs2.1.1indirecthigh33.1.1
@eslint/plugin-kit0.2.0indirectmoderate20.3.4
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 v0.34.0 — full methodology · metrics wiki.

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