Software health reportschema 0.17.0 · metrics 2.10.0 · 2026-07-21 06:39 UTC

mlir-rs / melior

The rustic MLIR bindings in Rust

RustApache-2.0★ 530 stars⑂ 75 forkssince May 2022View on GitHub ↗

mlir-rs/melior holds a health index of 77 out of 100, placing it in the Good band. It scores highest on Engineering Quality (71/100) and lowest on AI Readiness (47/100). It was last updated today. A single contributor accounts for most of its recent work.

overall / 100

Good

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 66 is calibrated to 77 on the published index scale (record calibration 2026-08-02).

Ownership

mlir-rsOrganization

22 followers3 public repossince Dec 2024

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	melior	0.27.3	14,586	93	0 days ago	llvm mlir api-bindings

Metrics by category

Vitality

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

69Good · 21% of overall

Development activity

88Excellent

How it's scored

36/36	Push recency — last push 0 days ago
23.5/36	Commit cadence — 34/52 weeks with commits
18/18	Commit volume — 134 commits in the last year
10/10	OpenSSF Scorecard: Maintained — 30 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10

Inputs used

commits_last_year	134
human_commit_share	—
days_since_last_push	0
active_weeks_last_year	34

Release discipline

40Weak

How it's scored

16.2/27	Ships releases — 7 version tags (no GitHub releases)
0/36	Release recency — latest release 1,170 days ago
19.8/27	Release cadence — a release every ~50.3 days
0/10	OpenSSF Scorecard: Signed-Releases — no data

Inputs used

releases_count	7
latest_release_tag	v0.4.1
releases_from_tags	yes
days_since_latest_release	1,170
mean_days_between_releases	50.3

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?

61Moderate · 17% of overall

Popularity & adoption

65Good

How it's scored

44.2/60	Stars — 530 stars
15.6/25	Forks — 75 forks
5.3/15	Watchers — 10 watchers

Inputs used

forks	75
stars	530
watchers	10
growth_state	organic
growth_factor_pct	100

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	—
has_contributing	no
has_issue_template	no
has_code_of_conduct	no
readme_badge_services	—
has_pull_request_template	no

Ecosystem adoption (downloads)

69Good

How it's scored

55.5/80	Monthly downloads — 14,586 downloads/month across crates
0/20	Registry dependents — not reported by this ecosystem

Inputs used

packages	melior
dependents	—
ecosystems	crates
total_downloads	648,907
monthly_downloads	14,586
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?

65Good · 23% of overall

Maintainer resilience (bus factor)

43Weak

How it's scored

9/54	Bus factor — 1 contributor(s) cover half of all commits
10.8/22.5	Commit distribution — top contributor authored 52% of commits
13.5/13.5	Contributor breadth — 19 contributors
10/10	OpenSSF Scorecard: Contributors — project has 6 contributing companies or organizations

Inputs used

bus_factor	1
contributors_sampled	19
top_contributor_share	0.522

Issue & PR responsiveness

68Good

How it's scored

25.5/42	Issue resolution — 61% of issues closed
27.9/30	PR acceptance — 735/789 decided PRs merged
0/13	Newcomer PR acceptance — no first-time contributor's PR decided in 30d
6/15	OpenSSF Scorecard: Code-Review — Found 4/9 approved changesets -- score normalized to 4

Inputs used

merged_prs	735
open_issues	33
closed_issues	51
prs_merged_7d	—
prs_decided_7d	—
prs_merged_30d	—
prs_decided_30d	—
issue_closed_ratio	0.607
closed_unmerged_prs	54
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

59Moderate

How it's scored

30/30	Ownership backing — organization-owned
0/20	Verified domain — verified-domain status not read for this organization
9.8/25	Owner reach — 22 followers of mlir-rs
7.6/25	Track record — 3 public repos, account ~1 yr old

Inputs used

followers	22
owner_type	Organization
is_verified	—
owner_login	mlir-rs
public_repos	3
account_age_days	596

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 0 days ago
20/20	Version history — 93 published versions
20/20	Not deprecated — active, not deprecated or yanked

Inputs used

packages	melior
ecosystems	crates
any_deprecated	no
min_days_since_publish	0

Engineering Quality

Are baseline engineering and documentation practices in place?

71Good · 19% of overall

Engineering practices

68Good

How it's scored

24/24	CI workflows — 5 workflow(s)
24/24	Tests present
0/16	Linter config
0/9.6	Pre-commit hooks
0/6.4	.editorconfig
20/20	OpenSSF Scorecard: CI-Tests — 30 out of 30 merged PRs checked by a CI test -- score normalized to 10

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://mlir-rs.github.io/melior/melior/
10/10	Repository description
10/10	Topics — 3 topics
10/10	Wiki

Inputs used

topics	rust, llvm, mlir
has_wiki	yes
homepage	https://mlir-rs.github.io/melior/melior/
docs_site	https://mlir-rs.github.io/melior/melior/
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?

70Good · 16% of overall

Security posture

62Moderate

How it's scored

7.5/7.5	Binary-Artifacts — no binaries found in the repo
2.2/7.5	Branch-Protection — branch protection is not maximal on development and all release branches
2.5/2.5	CI-Tests — 30 out of 30 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
3/7.5	Code-Review — Found 4/9 approved changesets -- score normalized to 4
2.5/2.5	Contributors — project has 6 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 1 issue activity found in the last 90 days -- score normalized to 10
5/5	Packaging — packaging workflow detected
4/5	Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 8
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	6.2

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
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	2
affected_packages	2
assessed_packages	109
unassessed_packages	14
affected_by_severity	unknown 2
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 109 resolved dependencies against OSV. 14 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.

47Weak · 4% of overall

Agent context & guidance

1Critical

How it's scored

0/45	Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15	Machine-readable docs (llms.txt)
0/40	Legible commit history — no data

Inputs used

has_llms_txt	no
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.

Verify loop (build / test / typecheck)

62Moderate

How it's scored

0/18	One-command bootstrap
22/22	Automated tests
0/11	Lint / format config
11/11	Static type checking — Rust (statically typed)
10/10	Reproducible environment — lockfile
0/10	Demonstrated agent practice — no data
5/8	Automated maintenance — dependency automation configured, none observed in the sampled commits
8/10	OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 8

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	—
toolchain_manifests	—
dependency_bot_commit_share	0

Excluded from scoring (no data or not applicable): Demonstrated agent practice. Remaining weights renormalized.

Code legibility for models

100Exceptional

How it's scored

45/45	Type-checkable code — Rust (statically typed)
55/55	Manageable file sizes — 0/157 source files over 60KB

Inputs used

primary_language	Rust
largest_source_bytes	40,595
source_files_sampled	157
oversized_source_files	0

Key facts

530GitHub stars

19contributors

134commits, last 12 months

0days since last push

7releases

1bus factor

33open issues

crates.iopackage ecosystems

Data collection warnings

deps.dev does not index crates:melior@0.27.3; advisories assessed against the repository dependency graph instead

More detail

Star and fork history 530 ★ / 0 ⇿

530Stars

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.

Each point covers 4 days.

OpenSSF Scorecard 6.2 / 10

6.2aggregate

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 06:39 UTC

10	Binary-Artifacts	no binaries found in the repo
3	Branch-Protection	branch protection is not maximal on development and all release branches
10	CI-Tests	30 out of 30 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
4	Code-Review	Found 4/9 approved changesets -- score normalized to 4
10	Contributors	project has 6 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 1 issue activity found in the last 90 days -- score normalized to 10
10	Packaging	packaging workflow detected
8	Pinned-Dependencies	dependency not pinned by hash detected -- score normalized to 8
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 2

Registry	Package	Version constraint	Manifest
crates.io	melior-macro	`0.20.3`	melior/Cargo.toml
crates.io	mlir-sys	`220.0.2`	melior/Cargo.toml

All dependencies 123

Full resolved dependency set from the GitHub dependency graph: 3 direct and 120 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

Registry	Package	Version	Relation
crates.io	melior-macro	`—`	direct
crates.io	mlir-sys	`—`	direct
crates.io	mlir-sys	`220.0.2`	direct
crates.io	aho-corasick	`1.1.4`	indirect
crates.io	anyhow	`1.0.102`	indirect
crates.io	bindgen	`0.72.1`	indirect
crates.io	bitflags	`2.11.0`	indirect
crates.io	caseless	`0.2.2`	indirect
crates.io	cc	`1.2.57`	indirect
crates.io	cexpr	`0.6.0`	indirect
crates.io	cfg-if	`1.0.4`	indirect
crates.io	clang-sys	`1.8.1`	indirect
crates.io	comrak	`—`	indirect
crates.io	comrak	`0.54.0`	indirect
crates.io	console	`0.16.3`	indirect
crates.io	convert_case	`—`	indirect
crates.io	convert_case	`0.11.0`	indirect
crates.io	diff	`0.1.13`	indirect
crates.io	dissimilar	`1.0.11`	indirect
crates.io	either	`1.15.0`	indirect
crates.io	encode_unicode	`1.0.0`	indirect
crates.io	entities	`1.0.1`	indirect
crates.io	equivalent	`1.0.2`	indirect
crates.io	errno	`0.3.14`	indirect
crates.io	fastrand	`2.3.0`	indirect
crates.io	find-msvc-tools	`0.1.9`	indirect
crates.io	finl_unicode	`1.4.0`	indirect
crates.io	foldhash	`0.1.5`	indirect
crates.io	getrandom	`0.4.2`	indirect
crates.io	glob	`0.3.3`	indirect
crates.io	hashbrown	`0.15.5`	indirect
crates.io	hashbrown	`0.16.1`	indirect
crates.io	heck	`0.5.0`	indirect
crates.io	id-arena	`2.3.0`	indirect
crates.io	indexmap	`2.13.0`	indirect
crates.io	indoc	`—`	indirect
crates.io	indoc	`2.0.7`	indirect
crates.io	insta	`—`	indirect
crates.io	insta	`1.48.0`	indirect
crates.io	itertools	`0.13.0`	indirect
crates.io	itoa	`1.0.17`	indirect
crates.io	jetscii	`0.5.3`	indirect
crates.io	leb128fmt	`0.1.0`	indirect
crates.io	libc	`0.2.183`	indirect
crates.io	libloading	`0.8.9`	indirect
crates.io	linux-raw-sys	`0.12.1`	indirect
crates.io	log	`0.4.29`	indirect
crates.io	memchr	`2.8.0`	indirect
crates.io	minimal-lexical	`0.2.1`	indirect
crates.io	nom	`7.1.3`	indirect
crates.io	once_cell	`1.21.4`	indirect
crates.io	paste	`1.0.15`	indirect
crates.io	phf	`0.13.1`	indirect
crates.io	phf_codegen	`0.13.1`	indirect
crates.io	phf_generator	`0.13.1`	indirect
crates.io	phf_shared	`0.13.1`	indirect
crates.io	pretty_assertions	`—`	indirect
crates.io	pretty_assertions	`1.4.1`	indirect
crates.io	prettyplease	`0.2.37`	indirect
crates.io	proc-macro2	`—`	indirect
crates.io	proc-macro2	`1.0.107`	indirect
crates.io	quote	`—`	indirect
crates.io	quote	`1.0.47`	indirect
crates.io	r-efi	`6.0.0`	indirect
crates.io	regex	`—`	indirect
crates.io	regex	`1.13.1`	indirect
crates.io	regex-automata	`0.4.16`	indirect
crates.io	regex-syntax	`0.8.11`	indirect
crates.io	rustc-hash	`2.1.1`	indirect
crates.io	rustix	`1.1.4`	indirect
crates.io	rustversion	`1.0.22`	indirect
crates.io	semver	`1.0.27`	indirect
crates.io	serde	`1.0.228`	indirect
crates.io	serde_core	`1.0.228`	indirect
crates.io	serde_derive	`1.0.228`	indirect
crates.io	serde_json	`1.0.149`	indirect
crates.io	serde_spanned	`1.0.4`	indirect
crates.io	shlex	`1.3.0`	indirect
crates.io	similar	`2.7.0`	indirect
crates.io	siphasher	`1.0.2`	indirect
crates.io	smallvec	`1.15.1`	indirect
crates.io	syn	`—`	indirect
crates.io	syn	`2.0.119`	indirect
crates.io	syn	`3.0.2`	indirect
crates.io	target-triple	`1.0.0`	indirect
crates.io	tblgen	`—`	indirect
crates.io	tblgen	`0.9.1`	indirect
crates.io	tempfile	`3.27.0`	indirect
crates.io	termcolor	`1.4.1`	indirect
crates.io	thiserror	`2.0.18`	indirect
crates.io	thiserror-impl	`2.0.18`	indirect
crates.io	tinyvec	`1.11.0`	indirect
crates.io	tinyvec_macros	`0.1.1`	indirect
crates.io	toml	`1.0.6+spec-1.1.0`	indirect
crates.io	toml_datetime	`1.0.0+spec-1.1.0`	indirect
crates.io	toml_parser	`1.0.9+spec-1.1.0`	indirect
crates.io	toml_writer	`1.0.6+spec-1.1.0`	indirect
crates.io	trybuild	`—`	indirect
crates.io	trybuild	`1.0.118`	indirect
crates.io	typed-arena	`2.0.2`	indirect
crates.io	unicode-ident	`1.0.24`	indirect
crates.io	unicode-normalization	`0.1.25`	indirect
crates.io	unicode-segmentation	`1.12.0`	indirect
crates.io	unicode-xid	`0.2.6`	indirect
crates.io	unindent	`—`	indirect
crates.io	unindent	`0.2.4`	indirect
crates.io	wasip2	`1.0.2+wasi-0.2.9`	indirect
crates.io	wasip3	`0.4.0+wasi-0.3.0-rc-2026-01-06`	indirect
crates.io	wasm-encoder	`0.244.0`	indirect
crates.io	wasm-metadata	`0.244.0`	indirect
crates.io	wasmparser	`0.244.0`	indirect
crates.io	winapi-util	`0.1.11`	indirect
crates.io	windows-link	`0.2.1`	indirect
crates.io	windows-sys	`0.61.2`	indirect
crates.io	winnow	`0.7.15`	indirect
crates.io	wit-bindgen	`0.51.0`	indirect
crates.io	wit-bindgen-core	`0.51.0`	indirect
crates.io	wit-bindgen-rust	`0.51.0`	indirect
crates.io	wit-bindgen-rust-macro	`0.51.0`	indirect
crates.io	wit-component	`0.244.0`	indirect
crates.io	wit-parser	`0.244.0`	indirect
crates.io	yansi	`1.0.1`	indirect
crates.io	zmij	`1.0.21`	indirect

Dependency advisories 2

This repository publishes no package the index resolves, so its own dependency graph was assessed — 109 packages, which also include development and test pins that never ship: 2 carry known advisories, of which 0 are direct. 14 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list.

Package	Version	Relation	Severity	Advisories	Fixed in
anyhow	`1.0.102`	indirect	unknown	1	`1.0.103`
paste	`1.0.15`	indirect	unknown	1	—

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 v0.17.0 — 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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