Software health reportschema 0.27.0 · metrics 2.5.0 · 2026-07-26 19:15 UTC

ionide / tree-sitter-fsharp

F# grammar for treesitter

C · JavaScript · Tree-sitter QueryMIT★ 93 stars⑂ 30 forkssince Nov 2022View on GitHub ↗

ionide/tree-sitter-fsharp holds a health index of 80 out of 100, placing it in the Excellent band. It scores highest on AI Readiness (87/100) and lowest on Security (60/100). It was last updated today. A single contributor accounts for most of its recent work.

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.

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)

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 68 is calibrated to 80 on the published index scale (record calibration 2026-08-02).

Ownership

IonideOrganization

88 followers42 public repossince Jul 2015

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

Package ecosystems

Registry	Package	Version	Downloads / mo	Versions	Last publish	Tags
crates.io	tree-sitter-fsharp	0.3.2	37,961	7	0 days ago	fsharp incremental parsing text-editors
npm	tree-sitter-fsharppoints to another repo — not scored	0.1.0	1,395	2	682 days ago	—

Metrics by category

Vitality

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

75Good · 21% of overall

Development activity

70Good

How it's scored

36/36	Push recency — last push 0 days ago
8.3/36	Commit cadence — 12/52 weeks with commits
15.6/18	Commit volume — 53 commits in the last year
10/10	OpenSSF Scorecard: Maintained — 30 commit(s) and 3 issue activity found in the last 90 days -- score normalized to 10

Inputs used

commits_last_year	53
human_commit_share	0.76
days_since_last_push	0
active_weeks_last_year	12

Release discipline

83Excellent

How it's scored

27/27	Ships releases — 8 releases published
36/36	Release recency — latest release 0 days ago
19.8/27	Release cadence — a release every ~98.3 days
0/10	OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases.

Inputs used

releases_count	8
latest_release_tag	0.3.2
releases_from_tags	no
days_since_latest_release	0
mean_days_between_releases	98.3

Community & Adoption

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

61Moderate · 17% of overall

Popularity & adoption

48Weak

How it's scored

31.9/60	Stars — 93 stars
12.2/25	Forks — 30 forks
3.9/15	Watchers — 6 watchers

Inputs used

forks	30
stars	93
watchers	6
growth_state	unverified
growth_factor_pct	100
growth_unverified_reason	no_history

Community health

65Good

How it's scored

22.5/22.5	README
22.5/22.5	License — recognized license (MIT)
0/18	CONTRIBUTING guide
13.5/13.5	Code of conduct
0/7.2	Issue template
0/6.3	PR template

Inputs used

has_readme	yes
has_license	yes
readme_badges	—
has_contributing	no
has_issue_template	no
has_code_of_conduct	yes
readme_badge_services	—
has_pull_request_template	no

Ecosystem adoption (downloads)

76Good

How it's scored

61.1/80	Monthly downloads — 37,961 downloads/month across crates
0/20	Registry dependents — not reported by this ecosystem

Inputs used

packages	tree-sitter-fsharp
dependents	—
ecosystems	crates
total_downloads	165,948
monthly_downloads	37,961

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?

65Good · 23% of overall

Maintainer resilience (bus factor)

37Weak

How it's scored

9/54	Bus factor — 1 contributor(s) cover half of all commits
4.3/22.5	Commit distribution — top contributor authored 81% of commits
13.5/13.5	Contributor breadth — 15 contributors
10/10	OpenSSF Scorecard: Contributors — project has 11 contributing companies or organizations

Inputs used

bus_factor	1
contributors_sampled	15
top_contributor_share	0.809

Issue & PR responsiveness

69Good

How it's scored

35.9/42	Issue resolution — 85% of issues closed
21/30	PR acceptance — 117/167 decided PRs merged
0/13	Newcomer PR acceptance — no first-time contributor's PR decided in 30d
3/15	OpenSSF Scorecard: Code-Review — Found 6/26 approved changesets -- score normalized to 2

Inputs used

merged_prs	117
open_issues	6
closed_issues	35
prs_merged_7d	—
prs_decided_7d	—
prs_merged_30d	—
prs_decided_30d	—
issue_closed_ratio	0.854
closed_unmerged_prs	50
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.

Ownership & stewardship

68Good

How it's scored

30/30	Ownership backing — organization-owned
0/20	Verified domain
14/25	Owner reach — 88 followers of ionide
23.9/25	Track record — 42 public repos, account ~11 yr old

Inputs used

followers	88
owner_type	Organization
is_verified	—
owner_login	ionide
public_repos	42
account_age_days	4,016

Package maintenance

100Exceptional

How it's scored

25/25	Published & resolvable — 1 package(s) on crates
35/35	Publish recency — latest publish 0 days ago
20/20	Version history — 7 published versions
20/20	Not deprecated — active, not deprecated or yanked

Inputs used

packages	tree-sitter-fsharp
ecosystems	crates
any_deprecated	no
min_days_since_publish	0

Engineering Quality

Are baseline engineering and documentation practices in place?

74Good · 19% of overall

Engineering practices

90Excellent

How it's scored

24/24	CI workflows — 2 workflow(s)
24/24	Tests present
16/16	Linter config — .eslintrc.js
0/9.6	Pre-commit hooks
6.4/6.4	.editorconfig
20/20	OpenSSF Scorecard: CI-Tests — 29 out of 29 merged PRs checked by a CI test -- score normalized to 10

Inputs used

has_ci	yes
has_tests	yes
has_editorconfig	yes
has_linter_config	yes
has_precommit_config	no

Documentation

50Moderate

How it's scored

30/30	README
0/25	Documentation directory
0/15	Documentation / homepage site
10/10	Repository description
10/10	Topics — 3 topics
0/10	Wiki

Inputs used

topics	fsharp, parser, tree-sitter
has_wiki	no
homepage	—
has_readme	yes
has_docs_dir	no
has_description	yes

Security

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

60Moderate · 16% of overall

Security posture

50Moderate

How it's scored

7.5/7.5	Binary-Artifacts — no binaries found in the repo
0/7.5	Branch-Protection — no data
2.5/2.5	CI-Tests — 29 out of 29 merged PRs checked by a CI test -- score normalized to 10
0/2.5	CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
1.5/7.5	Code-Review — Found 6/26 approved changesets -- score normalized to 2
2.5/2.5	Contributors — project has 11 contributing companies or organizations
10/10	Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5	Dependency-Update-Tool — update tool detected
0/5	Fuzzing — project is not fuzzed
2.5/2.5	License — license file detected
7.5/7.5	Maintained — 30 commit(s) and 3 issue activity found in the last 90 days -- score normalized to 10
0/5	Packaging — no data
0/5	Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5	SAST — SAST tool is not run on all commits -- score normalized to 0
0/5	Security-Policy — security policy file not detected
0/7.5	Signed-Releases — Project has not signed or included provenance with any releases.
0/7.5	Token-Permissions — detected GitHub workflow tokens with excessive permissions
5.2/7.5	Vulnerabilities — 3 existing vulnerabilities detected

Inputs used

source	openssf_scorecard
checks_evaluated	16
scorecard_version	v5.5.0
checks_inconclusive	2
scorecard_aggregate	5.1

Excluded from scoring (no data or not applicable): branch_protection, packaging. Remaining weights renormalized.

Dependency advisories

100Exceptional

How it's scored

35/35	Direct dependencies free of known advisories — no direct dependency carries a known advisory
0/25	Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope
0/40	No advisories left outstanding — no advisory carries a publication date

Inputs used

source	osv
advisories	3
affected_packages	1
assessed_packages	98
unassessed_packages	3
affected_by_severity	high 1
direct_affected_packages	0

Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 98 resolved dependencies against OSV. 3 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list. 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.

87Excellent · 4% of overall

Agent context & guidance

82Excellent

How it's scored

45/45	Agent instructions — AGENTS.md
0/15	Machine-readable docs (llms.txt)
37.2/40	Legible commit history — 53 of 76 human commits state their intent (structured subject or explanatory body)

Inputs used

has_llms_txt	no
legible_history_share	0.697
agent_instruction_files	AGENTS.md
agent_instruction_max_bytes	8,708

Verify loop (build / test / typecheck)

90Excellent

How it's scored

18/18	One-command bootstrap — Makefile
22/22	Automated tests
11/11	Lint / format config — .eslintrc.js
11/11	Static type checking — C (statically typed)
10/10	Reproducible environment — lockfile
10/10	Demonstrated agent practice — 9 of the last 100 commits agent-authored or agent-credited
8/8	Automated maintenance — 24 of the last 100 commits are automated dependency updates
0/10	OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0

Inputs used

has_nix	no
has_tests	yes
lockfiles	package-lock.json
has_dockerfile	no
typed_language	yes
bootstrap_files	Makefile
has_devcontainer	no
has_linter_config	yes
typecheck_configs	—
agent_commit_share	0.09
toolchain_manifests	Cargo.toml
dependency_bot_commit_share	0.24

Code legibility for models

90Excellent

How it's scored

45/45	Type-checkable code — C (statically typed)
45/55	Manageable file sizes — 4/22 source files over 60KB

Inputs used

primary_language	C
largest_source_bytes	56,855,917
source_files_sampled	22
oversized_source_files	4

Key facts

93GitHub stars

15contributors

53commits, last 12 months

0days since last push

8releases

1bus factor

6open issues

crates.io, npmpackage ecosystems

Data collection warnings

Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
npm package 'tree-sitter-fsharp' points at a different repository (https://github.com/tree-sitter/tree-sitter-fsharp); excluded from ecosystem scoring

More detail

Star and fork history 0 ★ / 30 ⇿

0Stars

30Forks

7Releases

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.

Major 0Minor 3Patch 4

Each point covers 4 days.

OpenSSF Scorecard 5.1 / 10

5.1aggregate

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 · 2026-07-26 19:14 UTC

10	Binary-Artifacts	no binaries found in the repo
n/a	Branch-Protection	internal 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
10	CI-Tests	29 out of 29 merged PRs checked by a CI test -- score normalized to 10
0	CII-Best-Practices	no effort to earn an OpenSSF best practices badge detected
2	Code-Review	Found 6/26 approved changesets -- score normalized to 2
10	Contributors	project has 11 contributing companies or organizations
10	Dangerous-Workflow	no dangerous workflow patterns detected
10	Dependency-Update-Tool	update tool detected
0	Fuzzing	project is not fuzzed
10	License	license file detected
10	Maintained	30 commit(s) and 3 issue activity found in the last 90 days -- score normalized to 10
n/a	Packaging	packaging workflow not detected
0	Pinned-Dependencies	dependency not pinned by hash detected -- score normalized to 0
0	SAST	SAST tool is not run on all commits -- score normalized to 0
0	Security-Policy	security policy file not detected
0	Signed-Releases	Project has not signed or included provenance with any releases.
0	Token-Permissions	detected GitHub workflow tokens with excessive permissions
7	Vulnerabilities	3 existing vulnerabilities detected

Direct dependencies 3

Registry	Package	Version constraint	Manifest
crates.io	tree-sitter-language	`0.1`	Cargo.toml
npm	node-addon-api	`^8.3.1`	package.json
npm	node-gyp-build	`^4.8.4`	package.json

All dependencies 101

Full resolved dependency set from the GitHub dependency graph: 3 direct and 98 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

Registry	Package	Version	Relation
crates.io	tree-sitter-language	`—`	direct
npm	node-addon-api	`8.9.0`	direct
npm	node-gyp-build	`4.8.4`	direct
crates.io	cc	`—`	indirect
crates.io	tree-sitter	`—`	indirect
npm	@aashutoshrathi/word-wrap	`1.2.6`	indirect
npm	@eslint-community/eslint-utils	`4.9.1`	indirect
npm	@eslint-community/regexpp	`4.12.2`	indirect
npm	@eslint/config-array	`0.23.5`	indirect
npm	@eslint/config-helpers	`0.6.0`	indirect
npm	@eslint/core	`1.2.1`	indirect
npm	@eslint/object-schema	`3.0.5`	indirect
npm	@eslint/plugin-kit	`0.7.2`	indirect
npm	@humanfs/core	`0.19.1`	indirect
npm	@humanfs/node	`0.16.6`	indirect
npm	@humanwhocodes/module-importer	`1.0.1`	indirect
npm	@humanwhocodes/retry	`0.3.1`	indirect
npm	@humanwhocodes/retry	`0.4.3`	indirect
npm	@types/esrecurse	`4.3.1`	indirect
npm	@types/estree	`1.0.8`	indirect
npm	@types/json-schema	`7.0.15`	indirect
npm	acorn	`8.16.0`	indirect
npm	acorn-jsx	`5.3.2`	indirect
npm	ajv	`6.14.0`	indirect
npm	balanced-match	`4.0.4`	indirect
npm	base64-js	`1.5.1`	indirect
npm	bl	`4.1.0`	indirect
npm	brace-expansion	`5.0.5`	indirect
npm	buffer	`5.7.1`	indirect
npm	chownr	`1.1.4`	indirect
npm	cross-spawn	`7.0.6`	indirect
npm	debug	`4.4.3`	indirect
npm	deep-is	`0.1.4`	indirect
npm	end-of-stream	`1.4.4`	indirect
npm	escape-string-regexp	`4.0.0`	indirect
npm	eslint	`10.7.0`	indirect
npm	eslint-config-google	`0.14.0`	indirect
npm	eslint-scope	`9.1.2`	indirect
npm	eslint-visitor-keys	`3.4.3`	indirect
npm	eslint-visitor-keys	`5.0.1`	indirect
npm	espree	`11.2.0`	indirect
npm	esquery	`1.7.0`	indirect
npm	esrecurse	`4.3.0`	indirect
npm	estraverse	`5.3.0`	indirect
npm	esutils	`2.0.3`	indirect
npm	fast-deep-equal	`3.1.3`	indirect
npm	fast-json-stable-stringify	`2.1.0`	indirect
npm	fast-levenshtein	`2.0.6`	indirect
npm	file-entry-cache	`8.0.0`	indirect
npm	find-up	`5.0.0`	indirect
npm	flat-cache	`4.0.1`	indirect
npm	flatted	`3.4.2`	indirect
npm	fs-constants	`1.0.0`	indirect
npm	glob-parent	`6.0.2`	indirect
npm	ieee754	`1.2.1`	indirect
npm	ignore	`5.3.2`	indirect
npm	imurmurhash	`0.1.4`	indirect
npm	inherits	`2.0.4`	indirect
npm	is-extglob	`2.1.1`	indirect
npm	is-glob	`4.0.3`	indirect
npm	isexe	`2.0.0`	indirect
npm	json-buffer	`3.0.1`	indirect
npm	json-schema-traverse	`0.4.1`	indirect
npm	json-stable-stringify-without-jsonify	`1.0.1`	indirect
npm	keyv	`4.5.4`	indirect
npm	levn	`0.4.1`	indirect
npm	locate-path	`6.0.0`	indirect
npm	lru-cache	`6.0.0`	indirect
npm	minimatch	`10.2.5`	indirect
npm	minimist	`1.2.8`	indirect
npm	mkdirp-classic	`0.5.3`	indirect
npm	ms	`2.1.3`	indirect
npm	natural-compare	`1.4.0`	indirect
npm	node-abi	`3.56.0`	indirect
npm	npm-run-path	`3.1.0`	indirect
npm	once	`1.4.0`	indirect
npm	optionator	`0.9.3`	indirect
npm	p-limit	`3.1.0`	indirect
npm	p-locate	`5.0.0`	indirect
npm	path-exists	`4.0.0`	indirect
npm	path-key	`3.1.1`	indirect
npm	prebuildify	`6.0.1`	indirect
npm	prelude-ls	`1.2.1`	indirect
npm	pump	`3.0.0`	indirect
npm	punycode	`2.3.1`	indirect
npm	readable-stream	`3.6.2`	indirect
npm	safe-buffer	`5.2.1`	indirect
npm	semver	`7.6.0`	indirect
npm	shebang-command	`2.0.0`	indirect
npm	shebang-regex	`3.0.0`	indirect
npm	string_decoder	`1.3.0`	indirect
npm	tar-fs	`2.1.4`	indirect
npm	tar-stream	`2.2.0`	indirect
npm	tree-sitter-cli	`0.26.11`	indirect
npm	type-check	`0.4.0`	indirect
npm	uri-js	`4.4.1`	indirect
npm	util-deprecate	`1.0.2`	indirect
npm	which	`2.0.2`	indirect
npm	wrappy	`1.0.2`	indirect
npm	yallist	`4.0.0`	indirect
npm	yocto-queue	`0.1.0`	indirect

Dependency advisories 1

This repository publishes no package the index resolves, so its own dependency graph was assessed — 98 packages, which also include development and test pins that never ship: 1 carry known advisories, of which 0 are direct. 3 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list.

Package	Version	Relation	Severity	Advisories	Fixed in
brace-expansion	`5.0.5`	indirect	high	3	`5.0.8`

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

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 v2.5.0, schema v0.27.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statistics — crates.io, npm.

Software health index

Score profile

Ownership

Package ecosystems

Metrics by category

Key facts

Data collection warnings

More detail

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