Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-08-23 19:28 UTC

wlcrs / tmodbus

Modern Python Modbus library

PythonBSD-3-Clause★ 20 stars⑂ 7 forkssince Aug 2025View on GitHub ↗
KindLibraryhow this is determined

wlcrs/tmodbus holds a health index of 89 out of 100, placing it in the Excellent band. It scores highest on Engineering Quality (88/100) and lowest on Community & Adoption (59/100). It was last updated today. A single contributor accounts for most of its recent work.

89
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.

89
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 75 is calibrated to 89 on the published index scale (record calibration 2026-08-02).

Ownership

Thijs W.Personal account
80 followers22 public repossince Aug 2012imec / Ghent University

This repository is owned by a personal account. A single-owner project carries more continuity risk than an organization-backed one.

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
PyPItmodbus0.5.268,785130 days agomodbusmodbus-asciimodbus-rtumodbus-rtu-over-tcpmodbus-tcp

Metrics by category

Vitality

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

86Excellent · 21% of overall

Development activity

76Good
How it's scored
36/36Push recency — last push 0 days ago
11.8/36Commit cadence — 17/52 weeks with commits
18/18Commit volume — 179 commits in the last year
10/10OpenSSF Scorecard: Maintained — 30 commit(s) and 5 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year179
human_commit_share0.72
days_since_last_push0
active_weeks_last_year17

Release discipline

100Exceptional
How it's scored
27/27Ships releases — 13 releases published
36/36Release recency — latest release 0 days ago
27/27Release cadence — a release every ~34.1 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count13
latest_release_tagv0.5.2
releases_from_tagsno
days_since_latest_release0
mean_days_between_releases34.1
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?

59Moderate · 17% of overall

Popularity & adoption

29At Risk
How it's scored
20.7/60Stars — 20 stars
6.5/25Forks — 7 forks
1.7/15Watchers — 3 watchers
Inputs used
forks7
stars20
watchers3
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

77Good
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (BSD-3-Clause)
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
6.3/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges6
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_servicesgithub.com, shields.io
has_pull_request_templateyes

Ecosystem adoption (downloads)

81Excellent
How it's scored
64.5/80Monthly downloads — 68,785 downloads/month across pypi
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagestmodbus
dependents—
ecosystemspypi
total_downloads—
monthly_downloads68,785
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?

63Moderate · 23% of overall

Maintainer resilience (bus factor)

30At Risk
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
4.7/22.5Commit distribution — top contributor authored 79% of commits
6.8/13.5Contributor breadth — 5 contributors
10/10OpenSSF Scorecard: Contributors — project has 9 contributing companies or organizations
Inputs used
bus_factor1
contributors_sampled5
top_contributor_share0.793

Issue & PR responsiveness

79Good
How it's scored
37.3/42Issue resolution — 89% of issues closed
27.3/30PR acceptance — 81/89 decided PRs merged
13/13Newcomer PR acceptance — 2/2 first-time contributors' PRs merged in 30d
1.5/15OpenSSF Scorecard: Code-Review — Found 2/18 approved changesets -- score normalized to 1
Inputs used
merged_prs81
open_issues1
closed_issues8
prs_merged_7d3
prs_decided_7d3
prs_merged_30d13
prs_decided_30d13
issue_closed_ratio0.889
closed_unmerged_prs8
first_time_authors_30d1
first_time_prs_merged_30d2
first_time_prs_decided_30d2

Ownership & stewardship

57Moderate
How it's scored
10/30Ownership backing — personal (user) account
0/20Verified domain — not applicable to user accounts
13.7/25Owner reach — 80 followers of wlcrs
21.9/25Track record — 22 public repos, account ~14 yr old
Inputs used
followers80
owner_typeUser
is_verified—
owner_loginwlcrs
public_repos22
account_age_days5,122
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 1 package(s) on pypi
35/35Publish recency — latest publish 0 days ago
20/20Version history — 13 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagestmodbus
ecosystemspypi
any_deprecatedno
min_days_since_publish0

Engineering Quality

Are baseline engineering and documentation practices in place?

88Excellent · 19% of overall

Engineering practices

94Exceptional
How it's scored
24/24CI workflows — 8 workflow(s)
24/24Tests present
16/16Linter config — pyproject.toml ([tool.ruff], [tool.pylint]), ruff.toml
9.6/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests — 21 out of 21 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configyes

Documentation

80Excellent
How it's scored
30/30README
25/25Documentation directory
15/15Documentation / homepage site — https://tmodbus.readthedocs.org
10/10Repository description
0/10Topics
0/10Wiki
Inputs used
topics—
has_wikino
homepage—
docs_sitehttps://tmodbus.readthedocs.org
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

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

76Good · 16% of overall

Security posture

70Good
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — branch protection not enabled on development/release branches
2.5/2.5CI-Tests — 21 out of 21 merged PRs checked by a CI test -- score normalized to 10
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
0.8/7.5Code-Review — Found 2/18 approved changesets -- score normalized to 1
2.5/2.5Contributors — project has 9 contributing companies or organizations
10/10Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
7.5/7.5Maintained — 30 commit(s) and 5 issue activity found in the last 90 days -- score normalized to 10
5/5Packaging — packaging workflow detected
5/5Pinned-Dependencies — all dependencies are pinned
5/5SAST — SAST tool is run on all commits
5/5Security-Policy — security policy file detected
0/7.5Signed-Releases — no data
7.5/7.5Token-Permissions — GitHub workflow tokens follow principle of least privilege
0/7.5Vulnerabilities — 20 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated17
scorecard_versionv5.5.0
checks_inconclusive1
scorecard_aggregate7
Excluded from scoring (no data or not applicable): Signed-Releases. Remaining weights renormalized.

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisories — no direct dependency carries a known advisory
0/25Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope
0/40No advisories left outstanding — no advisory carries a publication date
Inputs used
sourceosv
advisories38
affected_packages10
assessed_packages144
unassessed_packages0
affected_by_severitycritical 1, high 3, moderate 5, low 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 144 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.

77Good · 4% of overall

Agent context & guidance

40Weak
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 55 of 72 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.764
agent_instruction_files—
agent_instruction_max_bytes—

Verify loop (build / test / typecheck)

95Exceptional
How it's scored
12.6/18One-command bootstrap — integration_tests/rmodbus/Cargo.toml, integration_tests/simonvetter/go.mod, integration_tests/tokio/Cargo.toml (toolchain convention, no task runner)
22/22Automated tests
11/11Lint / format config — pyproject.toml ([tool.ruff], [tool.pylint]), ruff.toml
11/11Static type checking — src/tmodbus/py.typed
10/10Reproducible environment — lockfile
10/10Demonstrated agent practice — 5 of the last 100 commits agent-authored or agent-credited
8/8Automated maintenance — 27 of the last 100 commits are automated dependency updates
10/10OpenSSF Scorecard: Pinned-Dependencies — all dependencies are pinned
Inputs used
has_nixno
has_testsyes
lockfilesCargo.lock, go.sum, uv.lock
has_dockerfileno
typed_languageno
bootstrap_files—
has_devcontainerno
has_linter_configyes
typecheck_configssrc/tmodbus/py.typed
agent_commit_share0.05
toolchain_manifestsintegration_tests/rmodbus/Cargo.toml, integration_tests/simonvetter/go.mod, integration_tests/tokio/Cargo.toml
dependency_bot_commit_share0.27

Code legibility for models

82Excellent
How it's scored
27/45Type-checkable code — Python with type-check config (src/tmodbus/py.typed)
54.5/55Manageable file sizes — 1/104 source files over 60KB
Inputs used
primary_languagePython
largest_source_bytes68,382
source_files_sampled104
oversized_source_files1

Machine-readable interfaces

100Exceptional
How it's scored
0/40API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software
0/20MCP server — not applicable to this kind of software
40/40Runnable examples — examples
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

20GitHub stars
5contributors
179commits, last 12 months
0days since last push
13releases
1bus factor
1open issues
PyPIpackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • deps.dev does not index pypi:tmodbus@0.5.2; advisories assessed against the repository dependency graph instead

More detail

Star and fork history 0 ★ / 7 ⇿
0Stars
7Forks
6Releases

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.

1234567712025-122026-042026-08
Major 0Minor 3Patch 3
OpenSSF Scorecard 7.0 / 10
7.0aggregate

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 · 2026-08-23 19:28 UTC

10Binary-Artifactsno binaries found in the repo
0Branch-Protectionbranch protection not enabled on development/release branches
10CI-Tests21 out of 21 merged PRs checked by a CI test -- score normalized to 10
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
1Code-ReviewFound 2/18 approved changesets -- score normalized to 1
10Contributorsproject has 9 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 5 issue activity found in the last 90 days -- score normalized to 10
10Packagingpackaging workflow detected
10Pinned-Dependenciesall dependencies are pinned
10SASTSAST tool is run on all commits
10Security-Policysecurity policy file detected
n/aSigned-Releasesno releases found
10Token-PermissionsGitHub workflow tokens follow principle of least privilege
0Vulnerabilities20 existing vulnerabilities detected
Direct dependencies 1
RegistryPackageVersion constraintManifest
PyPItenacity>=8.2.0,!=8.4.0pyproject.toml
All dependencies 144

Full resolved dependency set from the GitHub dependency graph: 1 direct and 143 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
PyPItenacity9.1.4direct
crates.ioasync-trait0.1.88indirect
crates.iobitflags1.3.2indirect
crates.iobitflags2.9.1indirect
crates.iobyteorder1.5.0indirect
crates.iobytes1.12.1indirect
crates.iocfg-if1.0.1indirect
crates.iocfg-if1.0.4indirect
crates.iocfg_aliases0.2.1indirect
crates.iocore-foundation0.10.1indirect
crates.iocore-foundation-sys0.8.7indirect
crates.iocrc3.4.0indirect
crates.iocrc-catalog2.5.0indirect
crates.iofutures-core0.3.31indirect
crates.iofutures-sink0.3.31indirect
crates.iofutures-task0.3.31indirect
crates.iofutures-util0.3.31indirect
crates.ioieee7540.2.6indirect
crates.ioio-kit-sys0.4.1indirect
crates.iolibc0.2.174indirect
crates.iolibc0.2.176indirect
crates.iolog0.4.27indirect
crates.iomach20.4.3indirect
crates.iomio1.0.4indirect
crates.iomio-serial5.0.6indirect
crates.ionix0.26.4indirect
crates.ionix0.29.0indirect
crates.ioonce_cell1.21.4indirect
crates.iopin-project-lite0.2.16indirect
crates.iopin-utils0.1.0indirect
crates.ioproc-macro21.0.95indirect
crates.ioquote1.0.40indirect
crates.iormodbus0.12.2indirect
crates.ioscopeguard1.2.0indirect
crates.ioserial20.2.37indirect
crates.ioserialport4.7.2indirect
crates.iosmallvec1.15.1indirect
crates.iosocket20.6.0indirect
crates.iosyn2.0.104indirect
crates.iothiserror2.0.12indirect
crates.iothiserror-impl2.0.12indirect
crates.iotokio1.50.0indirect
crates.iotokio-macros2.6.1indirect
crates.iotokio-modbus0.17.0indirect
crates.iotokio-serial5.5.0indirect
crates.iotokio-util0.7.16indirect
crates.iounescaper0.1.6indirect
crates.iounicode-ident1.0.18indirect
crates.iowasi0.11.1+wasi-snapshot-preview1indirect
crates.iowinapi0.3.9indirect
crates.iowinapi-i686-pc-windows-gnu0.4.0indirect
crates.iowinapi-x86_64-pc-windows-gnu0.4.0indirect
crates.iowindows-link0.2.1indirect
crates.iowindows-sys0.59.0indirect
crates.iowindows-sys0.61.2indirect
crates.iowindows-targets0.52.6indirect
crates.iowindows_aarch64_gnullvm0.52.6indirect
crates.iowindows_aarch64_msvc0.52.6indirect
crates.iowindows_i686_gnu0.52.6indirect
crates.iowindows_i686_gnullvm0.52.6indirect
crates.iowindows_i686_msvc0.52.6indirect
crates.iowindows_x86_64_gnu0.52.6indirect
crates.iowindows_x86_64_gnullvm0.52.6indirect
crates.iowindows_x86_64_msvc0.52.6indirect
Gogithub.com/goburrow/serialv0.1.0indirect
Gogithub.com/simonvetter/modbusv1.6.4indirect
PyPIalabaster1.0.0indirect
PyPIanyio4.11.0indirect
PyPIast-serialize0.6.0indirect
PyPIbabel2.17.0indirect
PyPIblack25.9.0indirect
PyPIcertifi2025.10.5indirect
PyPIcffi2.1.0indirect
PyPIcfgv3.4.0indirect
PyPIcharset-normalizer3.4.3indirect
PyPIclick8.3.0indirect
PyPIcodespell2.4.3indirect
PyPIcolorama0.4.6indirect
PyPIcovdefaults2.3.0indirect
PyPIcoverage7.15.2indirect
PyPIcryptography49.0.0indirect
PyPIdistlib0.4.0indirect
PyPIdocstrfmt2.2.0indirect
PyPIdocutils0.21.2indirect
PyPIdocutils-stubs0.0.22indirect
PyPIfilelock3.19.1indirect
PyPIh110.16.0indirect
PyPIidentify2.6.15indirect
PyPIidna3.10indirect
PyPIimagesize1.4.1indirect
PyPIiniconfig2.1.0indirect
PyPIjinja23.1.6indirect
PyPIlibcst1.8.5indirect
PyPIlibrt0.13.0indirect
PyPImarkupsafe3.0.3indirect
PyPImypy2.3.0indirect
PyPImypy-extensions1.1.0indirect
PyPInodeenv1.9.1indirect
PyPIpackaging25.0indirect
PyPIpathspec1.1.1indirect
PyPIplatformdirs4.4.0indirect
PyPIpluggy1.6.0indirect
PyPIpre-commit4.6.1indirect
PyPIpre-commit-hooks6.0.0indirect
PyPIpycparser3.0indirect
PyPIpygments2.19.2indirect
PyPIpytest9.1.1indirect
PyPIpytest-asyncio1.4.0indirect
PyPIpytest-cov7.1.0indirect
PyPIpytokens0.1.10indirect
PyPIpywin32311indirect
PyPIpyyaml6.0.3indirect
PyPIpyyaml-ft8.0.0indirect
PyPIrequests2.32.5indirect
PyPIroman5.1indirect
PyPIroman-numerals4.1.0indirect
PyPIruamel-yaml0.18.15indirect
PyPIruamel-yaml-clib0.2.14indirect
PyPIruff0.16.0indirect
PyPIserialx1.8.2indirect
PyPIsniffio1.3.1indirect
PyPIsnowballstemmer3.0.1indirect
PyPIsphinx9.1.0indirect
PyPIsphinx-autobuild2025.8.25indirect
PyPIsphinx-rtd-theme3.1.0indirect
PyPIsphinxcontrib-applehelp2.0.0indirect
PyPIsphinxcontrib-devhelp2.0.0indirect
PyPIsphinxcontrib-htmlhelp2.1.0indirect
PyPIsphinxcontrib-jquery4.1indirect
PyPIsphinxcontrib-jsmath1.0.1indirect
PyPIsphinxcontrib-mermaid2.1.0indirect
PyPIsphinxcontrib-qthelp2.0.0indirect
PyPIsphinxcontrib-serializinghtml2.0.0indirect
PyPIstarlette0.48.0indirect
PyPIsybil10.1.0indirect
PyPItabulate0.10.0indirect
PyPItypes-docutils0.22.3.20260518indirect
PyPItyping-extensions4.16.0indirect
PyPIurllib32.5.0indirect
PyPIuvicorn0.37.0indirect
PyPIvirtualenv20.34.0indirect
PyPIwatchfiles1.1.0indirect
PyPIwebsockets15.0.1indirect
PyPIyamllint1.38.0indirect
Dependency advisories 10

This repository publishes no package the index resolves, so its own dependency graph was assessed — 144 packages, which also include development and test pins that never ship: 10 carry known advisories, of which 0 are direct.

PackageVersionRelationSeverityAdvisoriesFixed in
black25.9.0indirectcritical326.3.1
click8.3.0indirecthigh18.3.3
starlette0.48.0indirecthigh121.3.1
urllib32.5.0indirecthigh82.7.0
cryptography49.0.0indirectmoderate250.0.0
filelock3.19.1indirectmoderate43.20.3
idna3.10indirectmoderate23.15
requests2.32.5indirectmoderate22.33.0
virtualenv20.34.0indirectmoderate220.36.1
pygments2.19.2indirectlow22.20.0

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.

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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 statistics — PyPI.