Software health reportschema 0.31.0 · metrics 2.10.0 · 2026-08-13 21:54 UTC

tokio-rs / io-uring

The `io_uring` library for Rust

RustApache-2.0★ 1,712 stars⑂ 196 forkssince Oct 2019View on GitHub ↗

tokio-rs/io-uring holds a health index of 84 out of 100, placing it in the Excellent band. It scores highest on Sustainability & Governance (76/100) and lowest on Security (61/100). It was last updated 2 days ago. 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 71 is calibrated to 84 on the published index scale (record calibration 2026-08-02).

Ownership

TokioOrganization

3,033 followers48 public repossince Jul 2016

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	io-uring	0.7.14	3,485,509	50	2 days ago	asynchronous filesystem network-programming

Metrics by category

Vitality

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

74Good · 21% of overall

Development activity

70Good

How it's scored

36/36	Push recency — last push 2 days ago
10.4/36	Commit cadence — 15/52 weeks with commits
13.5/18	Commit volume — 31 commits in the last year
10/10	OpenSSF Scorecard: Maintained — 11 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10

Inputs used

commits_last_year	31
human_commit_share	1
days_since_last_push	2
active_weeks_last_year	15

Release discipline

80Excellent

How it's scored

16.2/27	Ships releases — 4 version tags (no GitHub releases)
36/36	Release recency — latest release 2 days ago
19.8/27	Release cadence — a release every ~94.1 days
0/10	OpenSSF Scorecard: Signed-Releases — no data

Inputs used

releases_count	4
latest_release_tag	v0.7.14
releases_from_tags	yes
days_since_latest_release	2
mean_days_between_releases	94.1

Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.

Community & Adoption

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

74Good · 17% of overall

Popularity & adoption

80Excellent

How it's scored

52.4/60	Stars — 1,712 stars
19.1/25	Forks — 196 forks
8.5/15	Watchers — 35 watchers

Inputs used

forks	196
stars	1,712
watchers	35
growth_state	unverified
growth_factor_pct	100
growth_unverified_reason	no_history

Community health

50Moderate

How it's scored

22.5/22.5	README
22.5/22.5	License — recognized license (Apache-2.0)
0/18	CONTRIBUTING guide
0/13.5	Code of conduct
0/7.2	Issue template
0/6.3	PR template

Inputs used

has_readme	yes
has_license	yes
readme_badges	4
has_contributing	no
has_issue_template	no
has_code_of_conduct	no
readme_badge_services	github.com, shields.io
has_pull_request_template	no

Ecosystem adoption (downloads)

100Exceptional

How it's scored

80/80	Monthly downloads — 3,485,509 downloads/month across crates
0/20	Registry dependents — not reported by this ecosystem

Inputs used

packages	io-uring
dependents	—
ecosystems	crates
total_downloads	51,357,767
monthly_downloads	3,485,509
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?

76Good · 23% of overall

Maintainer resilience (bus factor)

41Weak

How it's scored

9/54	Bus factor — 1 contributor(s) cover half of all commits
8.3/22.5	Commit distribution — top contributor authored 63% of commits
13.5/13.5	Contributor breadth — 66 contributors
10/10	OpenSSF Scorecard: Contributors — project has 11 contributing companies or organizations

Inputs used

bus_factor	1
contributors_sampled	66
top_contributor_share	0.632

Issue & PR responsiveness

77Good

How it's scored

30.7/42	Issue resolution — 73% of issues closed
24.9/30	PR acceptance — 195/235 decided PRs merged
9.8/13	Newcomer PR acceptance — 3/4 first-time contributors' PRs merged in 30d
12/15	OpenSSF Scorecard: Code-Review — Found 24/30 approved changesets -- score normalized to 8

Inputs used

merged_prs	195
open_issues	42
closed_issues	114
prs_merged_7d	4
prs_decided_7d	4
prs_merged_30d	4
prs_decided_30d	5
issue_closed_ratio	0.731
closed_unmerged_prs	40
first_time_authors_30d	3
first_time_prs_merged_30d	3
first_time_prs_decided_30d	4

Ownership & stewardship

99Exceptional

How it's scored

30/30	Ownership backing — organization-owned
0/20	Verified domain — verified-domain status not read for this organization
25/25	Owner reach — 3,033 followers of tokio-rs
24.3/25	Track record — 48 public repos, account ~10 yr old

Inputs used

followers	3,033
owner_type	Organization
is_verified	—
owner_login	tokio-rs
public_repos	48
account_age_days	3,695

Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.

Package maintenance

100Exceptional

How it's scored

25/25	Published & resolvable — 1 package(s) on crates
35/35	Publish recency — latest publish 2 days ago
20/20	Version history — 50 published versions
20/20	Not deprecated — active, not deprecated or yanked

Inputs used

packages	io-uring
ecosystems	crates
any_deprecated	no
min_days_since_publish	2

Engineering Quality

Are baseline engineering and documentation practices in place?

70Good · 19% of overall

Engineering practices

66Good

How it's scored

24/24	CI workflows — 3 workflow(s)
24/24	Tests present
0/16	Linter config
0/9.6	Pre-commit hooks
0/6.4	.editorconfig
18/20	OpenSSF Scorecard: CI-Tests — 28 out of 29 merged PRs checked by a CI test -- score normalized to 9

Inputs used

has_ci	yes
has_tests	yes
has_editorconfig	no
has_linter_config	no
has_precommit_config	no

Documentation

75Good

How it's scored

30/30	README
0/25	Documentation directory
15/15	Documentation / homepage site — https://docs.rs/io-uring
10/10	Repository description
10/10	Topics — 3 topics
10/10	Wiki

Inputs used

topics	linux, io-uring, rust-lang
has_wiki	yes
homepage	—
docs_site	https://docs.rs/io-uring
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?

61Moderate · 16% of overall

Security posture

51Moderate

How it's scored

7.5/7.5	Binary-Artifacts — no binaries found in the repo
0.8/7.5	Branch-Protection — branch protection is not maximal on development and all release branches
2.2/2.5	CI-Tests — 28 out of 29 merged PRs checked by a CI test -- score normalized to 9
0/2.5	CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
6/7.5	Code-Review — Found 24/30 approved changesets -- score normalized to 8
2.5/2.5	Contributors — project has 11 contributing companies or organizations
10/10	Dangerous-Workflow — no dangerous workflow patterns detected
0/7.5	Dependency-Update-Tool — no update tool detected
0/5	Fuzzing — project is not fuzzed
2.5/2.5	License — license file detected
7.5/7.5	Maintained — 11 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10
5/5	Packaging — packaging workflow detected
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 — no data
0/7.5	Token-Permissions — detected GitHub workflow tokens with excessive permissions
6/7.5	Vulnerabilities — 2 existing vulnerabilities detected

Inputs used

source	openssf_scorecard
checks_evaluated	17
scorecard_version	v5.5.0
checks_inconclusive	1
scorecard_aggregate	5.1

Excluded from scoring (no data or not applicable): Signed-Releases. 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
25/25	Indirect dependencies free of known advisories — no indirect dependency carries a known advisory
0/40	No advisories left outstanding — no advisory carries a publication date

Inputs used

source	osv
advisories	0
affected_packages	0
assessed_packages	36
unassessed_packages	0
affected_by_severity	none
direct_affected_packages	0

Excluded from scoring (no data or not applicable): No advisories left outstanding. Remaining weights renormalized. Matched the crates:io-uring@0.7.14 runtime dependency closure — what installing the published package pulls in — 36 packages. 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.

65Good · 4% of overall

Agent context & guidance

40Weak

How it's scored

0/45	Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15	Machine-readable docs (llms.txt)
40/40	Legible commit history — 81 of 100 human commits state their intent (structured subject or explanatory body)

Inputs used

has_llms_txt	no
llms_txt_url	—
legible_history_share	0.81
agent_instruction_files	—
agent_instruction_max_bytes	—

Verify loop (build / test / typecheck)

60Moderate

How it's scored

12.6/18	One-command bootstrap — Cargo.toml, io-uring-bench/Cargo.toml, io-uring-test/Cargo.toml (toolchain convention, no task runner)
22/22	Automated tests
0/11	Lint / format config
11/11	Static type checking — Rust (statically typed)
10/10	Reproducible environment — lockfile
4/10	Demonstrated agent practice — 2 of the last 100 commits agent-authored or agent-credited
0/8	Automated maintenance — no automated dependency updates observed
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	Cargo.lock
has_dockerfile	no
typed_language	yes
bootstrap_files	—
has_devcontainer	no
has_linter_config	no
typecheck_configs	—
agent_commit_share	0.02
toolchain_manifests	Cargo.toml, io-uring-bench/Cargo.toml, io-uring-test/Cargo.toml
dependency_bot_commit_share	0

Code legibility for models

91Excellent

How it's scored

45/45	Type-checkable code — Rust (statically typed)
45.6/55	Manageable file sizes — 7/41 source files over 60KB

Inputs used

primary_language	Rust
largest_source_bytes	121,205
source_files_sampled	41
oversized_source_files	7

Machine-readable interfaces

100Exceptional

How it's scored

0/40	API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software
0/20	MCP server — not applicable to this kind of software
40/40	Runnable examples — examples

Inputs used

example_dirs	examples
has_mcp_signal	no
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

1,712GitHub stars

66contributors

31commits, last 12 months

2days since last push

4releases

1bus factor

42open issues

crates.iopackage ecosystems

Data collection warnings

Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
Could not fetch crates package 'io-uring-test' from its registry
Could not fetch crates package 'io-uring-bench' from its registry

More detail

Star and fork history 0 ★ / 196 ⇿

0Stars

196Forks

3Releases

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 0Patch 3

Each point covers 7 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 · 2026-08-13 21:53 UTC

10	Binary-Artifacts	no binaries found in the repo
1	Branch-Protection	branch protection is not maximal on development and all release branches
9	CI-Tests	28 out of 29 merged PRs checked by a CI test -- score normalized to 9
0	CII-Best-Practices	no effort to earn an OpenSSF best practices badge detected
8	Code-Review	Found 24/30 approved changesets -- score normalized to 8
10	Contributors	project has 11 contributing companies or organizations
10	Dangerous-Workflow	no dangerous workflow patterns detected
0	Dependency-Update-Tool	no update tool detected
0	Fuzzing	project is not fuzzed
10	License	license file detected
10	Maintained	11 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10
10	Packaging	packaging workflow 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
n/a	Signed-Releases	no releases found
0	Token-Permissions	detected GitHub workflow tokens with excessive permissions
8	Vulnerabilities	2 existing vulnerabilities detected

Direct dependencies 13

Registry	Package	Version constraint	Manifest
crates.io	bitflags	`2`	Cargo.toml
crates.io	cfg-if	`1`	Cargo.toml
crates.io	libc	`0.2.98`	Cargo.toml
crates.io	sc	`0.2`	Cargo.toml
crates.io	io-uring	`—`	io-uring-bench/Cargo.toml
crates.io	criterion	`0.5`	io-uring-bench/Cargo.toml
crates.io	tempfile	`3`	io-uring-bench/Cargo.toml
crates.io	io-uring	`—`	io-uring-test/Cargo.toml
crates.io	libc	`0.2`	io-uring-test/Cargo.toml
crates.io	anyhow	`1`	io-uring-test/Cargo.toml
crates.io	tempfile	`3`	io-uring-test/Cargo.toml
crates.io	once_cell	`1`	io-uring-test/Cargo.toml
crates.io	socket2	`0.5`	io-uring-test/Cargo.toml

All dependencies 99

Full resolved dependency set from the GitHub dependency graph: 15 direct and 84 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

Registry	Package	Version	Relation
crates.io	anyhow	`—`	direct
crates.io	anyhow	`1.0.86`	direct
crates.io	bitflags	`2.6.0`	direct
crates.io	cfg-if	`1.0.0`	direct
crates.io	criterion	`—`	direct
crates.io	criterion	`0.5.1`	direct
crates.io	libc	`—`	direct
crates.io	libc	`0.2.156`	direct
crates.io	once_cell	`—`	direct
crates.io	once_cell	`1.19.0`	direct
crates.io	sc	`0.2.7`	direct
crates.io	socket2	`—`	direct
crates.io	socket2	`0.5.7`	direct
crates.io	tempfile	`—`	direct
crates.io	tempfile	`3.12.0`	direct
crates.io	aho-corasick	`1.1.3`	indirect
crates.io	anes	`0.1.6`	indirect
crates.io	anstyle	`1.0.8`	indirect
crates.io	autocfg	`1.3.0`	indirect
crates.io	bindgen	`0.69.4`	indirect
crates.io	bumpalo	`3.16.0`	indirect
crates.io	cast	`0.3.0`	indirect
crates.io	cexpr	`0.6.0`	indirect
crates.io	ciborium	`0.2.2`	indirect
crates.io	ciborium-io	`0.2.2`	indirect
crates.io	ciborium-ll	`0.2.2`	indirect
crates.io	clang-sys	`1.8.1`	indirect
crates.io	clap	`4.5.16`	indirect
crates.io	clap_builder	`4.5.15`	indirect
crates.io	clap_lex	`0.7.2`	indirect
crates.io	criterion-plot	`0.5.0`	indirect
crates.io	crossbeam-deque	`0.8.5`	indirect
crates.io	crossbeam-epoch	`0.9.18`	indirect
crates.io	crossbeam-utils	`0.8.20`	indirect
crates.io	crunchy	`0.2.2`	indirect
crates.io	either	`1.13.0`	indirect
crates.io	errno	`0.3.9`	indirect
crates.io	fastrand	`2.1.0`	indirect
crates.io	glob	`0.3.1`	indirect
crates.io	half	`2.4.1`	indirect
crates.io	hermit-abi	`0.4.0`	indirect
crates.io	home	`0.5.9`	indirect
crates.io	is-terminal	`0.4.13`	indirect
crates.io	itertools	`0.10.5`	indirect
crates.io	itoa	`1.0.11`	indirect
crates.io	js-sys	`0.3.70`	indirect
crates.io	lazy_static	`1.5.0`	indirect
crates.io	lazycell	`1.3.0`	indirect
crates.io	libloading	`0.8.5`	indirect
crates.io	linux-raw-sys	`0.4.14`	indirect
crates.io	log	`0.4.22`	indirect
crates.io	memchr	`2.7.4`	indirect
crates.io	minimal-lexical	`0.2.1`	indirect
crates.io	nom	`7.1.3`	indirect
crates.io	num-traits	`0.2.19`	indirect
crates.io	oorandom	`11.1.4`	indirect
crates.io	plotters	`0.3.6`	indirect
crates.io	plotters-backend	`0.3.6`	indirect
crates.io	plotters-svg	`0.3.6`	indirect
crates.io	prettyplease	`0.2.20`	indirect
crates.io	proc-macro2	`1.0.86`	indirect
crates.io	quote	`1.0.36`	indirect
crates.io	rayon	`1.10.0`	indirect
crates.io	rayon-core	`1.12.1`	indirect
crates.io	regex	`1.10.6`	indirect
crates.io	regex-automata	`0.4.7`	indirect
crates.io	regex-syntax	`0.8.4`	indirect
crates.io	rustc-hash	`1.1.0`	indirect
crates.io	rustix	`0.38.34`	indirect
crates.io	ryu	`1.0.18`	indirect
crates.io	same-file	`1.0.6`	indirect
crates.io	serde	`1.0.208`	indirect
crates.io	serde_derive	`1.0.208`	indirect
crates.io	serde_json	`1.0.125`	indirect
crates.io	shlex	`1.3.0`	indirect
crates.io	slab	`0.4.9`	indirect
crates.io	syn	`2.0.74`	indirect
crates.io	tinytemplate	`1.2.1`	indirect
crates.io	unicode-ident	`1.0.12`	indirect
crates.io	walkdir	`2.5.0`	indirect
crates.io	wasm-bindgen	`0.2.93`	indirect
crates.io	wasm-bindgen-backend	`0.2.93`	indirect
crates.io	wasm-bindgen-macro	`0.2.93`	indirect
crates.io	wasm-bindgen-macro-support	`0.2.93`	indirect
crates.io	wasm-bindgen-shared	`0.2.93`	indirect
crates.io	web-sys	`0.3.70`	indirect
crates.io	which	`4.4.2`	indirect
crates.io	winapi-util	`0.1.9`	indirect
crates.io	windows-sys	`0.52.0`	indirect
crates.io	windows-sys	`0.59.0`	indirect
crates.io	windows-targets	`0.52.6`	indirect
crates.io	windows_aarch64_gnullvm	`0.52.6`	indirect
crates.io	windows_aarch64_msvc	`0.52.6`	indirect
crates.io	windows_i686_gnu	`0.52.6`	indirect
crates.io	windows_i686_gnullvm	`0.52.6`	indirect
crates.io	windows_i686_msvc	`0.52.6`	indirect
crates.io	windows_x86_64_gnu	`0.52.6`	indirect
crates.io	windows_x86_64_gnullvm	`0.52.6`	indirect
crates.io	windows_x86_64_msvc	`0.52.6`	indirect

Dependency advisories 0

Installing crates:io-uring@0.7.14 pulls in 36 packages, direct and transitive: 0 carry known advisories, of which 0 are direct dependencies.

No known advisories affect the assessed dependencies.

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.

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 v0.31.0 — full methodology · metrics wiki.

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

Software health index

Score profile

Ownership

Package ecosystems

Metrics by category

Key facts

Data collection warnings

More detail

Feedback

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