Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-17 15:51 UTC

aws / chalice

Python Serverless Microframework for AWS

PythonApache-2.0★ 11,059 stars⑂ 1,011 forkssince May 2016View on GitHub ↗
KindCommand-line toolLibraryhow this is determined
#python#aws#aws-lambda#cloud#serverless#serverless-framework#aws-apigateway#lambda#python3#python27

aws/chalice holds a health index of 89 out of 100, placing it in the Excellent band. It scores highest on Community & Adoption (95/100) and lowest on Vitality (59/100). It was last updated 5 days ago. 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

Amazon Web ServicesOrganization · verified domain
16,814 followers552 public repossince Aug 2012

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
PyPIchalice1.33.0-96132 days agochalice

Metrics by category

Vitality

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

59Moderate · 21% of overall

Development activity

57Moderate
How it's scored
36/36Push recency — last push 5 days ago
4.8/36Commit cadence — 7/52 weeks with commits
11.5/18Commit volume — 18 commits in the last year
5/10OpenSSF Scorecard: Maintained — 6 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 5
Inputs used
commits_last_year18
human_commit_share0.91
days_since_last_push5
active_weeks_last_year7

Release discipline

62Moderate
How it's scored
16.2/27Ships releases — 94 version tags (no GitHub releases)
27/36Release recency — latest release 132 days ago
12.6/27Release cadence — a release every ~128.3 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count94
latest_release_tag1.33.0
releases_from_tagsyes
days_since_latest_release132
mean_days_between_releases128.3
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?

95Exceptional · 17% of overall

Popularity & adoption

98Exceptional
How it's scored
60/60Stars — 11,059 stars
25/25Forks — 1,011 forks
13.1/15Watchers — 229 watchers
Inputs used
forks1,011
stars11,059
watchers229
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

92Excellent
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (Apache-2.0)
18/18CONTRIBUTING guide
13.5/13.5Code of conduct
0/7.2Issue template
6.3/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges4
has_contributingyes
has_issue_templateno
has_code_of_conductyes
readme_badge_servicesreadthedocs.org, shields.io
has_pull_request_templateyes

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

75Good · 23% of overall

Maintainer resilience (bus factor)

38Weak
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
5.8/22.5Commit distribution — top contributor authored 74% of commits
13.5/13.5Contributor breadth — 98 contributors
10/10OpenSSF Scorecard: Contributors — project has 24 contributing companies or organizations
Inputs used
bus_factor1
contributors_sampled98
top_contributor_share0.742

Issue & PR responsiveness

76Good
How it's scored
28/42Issue resolution — 67% of issues closed
23/30PR acceptance — 654/853 decided PRs merged
13/13Newcomer PR acceptance — 2/2 first-time contributors' PRs merged in 30d
12/15OpenSSF Scorecard: Code-Review — Found 15/17 approved changesets -- score normalized to 8
Inputs used
merged_prs654
open_issues418
closed_issues832
prs_merged_7d2
prs_decided_7d2
prs_merged_30d2
prs_decided_30d2
issue_closed_ratio0.666
closed_unmerged_prs199
first_time_authors_30d1
first_time_prs_merged_30d2
first_time_prs_decided_30d2

Ownership & stewardship

100Exceptional
How it's scored
30/30Ownership backing — organization-owned
20/20Verified domain
25/25Owner reach — 16,814 followers of aws
25/25Track record — 552 public repos, account ~14 yr old
Inputs used
followers16,814
owner_typeOrganization
is_verifiedyes
owner_loginaws
public_repos552
account_age_days5,133

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 1 package(s) on pypi
35/35Publish recency — latest publish 132 days ago
20/20Version history — 96 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packageschalice
ecosystemspypi
any_deprecatedno
min_days_since_publish132

Engineering Quality

Are baseline engineering and documentation practices in place?

78Good · 19% of overall

Engineering practices

80Excellent
How it's scored
24/24CI workflows — 2 workflow(s)
24/24Tests present
16/16Linter config — .pylintrc
0/9.6Pre-commit hooks
0/6.4.editorconfig
16/20OpenSSF Scorecard: CI-Tests — 17 out of 20 merged PRs checked by a CI test -- score normalized to 8
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configno

Documentation

75Good
How it's scored
30/30README
25/25Documentation directory
0/15Documentation / homepage site
10/10Repository description
10/10Topics — 10 topics
0/10Wiki
Inputs used
topicspython, aws, aws-lambda, cloud, serverless, serverless-framework, aws-apigateway, lambda, python3, python27
has_wikino
homepage—
docs_site—
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

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

70Good · 16% of overall

Security posture

67Good
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
4.5/7.5Branch-Protection — branch protection is not maximal on development and all release branches
2/2.5CI-Tests — 17 out of 20 merged PRs checked by a CI test -- score normalized to 8
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
6/7.5Code-Review — Found 15/17 approved changesets -- score normalized to 8
2.5/2.5Contributors — project has 24 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
3.8/7.5Maintained — 6 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 5
0/5Packaging — no data
1.5/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 3
2/5SAST — SAST tool is not run on all commits -- score normalized to 4
5/5Security-Policy — security policy file detected
0/7.5Signed-Releases — no data
6.8/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
0/7.5Vulnerabilities — 23 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated16
scorecard_versionv5.5.0
checks_inconclusive2
scorecard_aggregate6.6
Excluded from scoring (no data or not applicable): Packaging, Signed-Releases. Remaining weights renormalized.

Dependency advisories

82Excellent
How it's scored
16.8/35Direct dependencies free of known advisories — 1 affected: pip 26.1.2 (moderate 6.5)
25/25Indirect dependencies free of known advisories — no indirect dependency carries a known advisory
40/40No advisories left outstanding — no advisory has been public longer than 90 days
Inputs used
sourceosv
advisories2
affected_packages1
assessed_packages19
unassessed_packages0
affected_by_severitymoderate 1
direct_affected_packages1
Matched the pypi:chalice@1.33.0 runtime dependency closure — what installing the published package pulls in — 19 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.

68Good · 4% of overall

Agent context & guidance

40Weak
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
15/15Machine-readable docs (llms.txt) — llms.txt served by the project website (https://docs.aws.amazon.com/llms.txt)
24.6/40Legible commit history — 42 of 91 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtyes
llms_txt_urlhttps://docs.aws.amazon.com/llms.txt
legible_history_share0.462
agent_instruction_files—
agent_instruction_max_bytes—

Verify loop (build / test / typecheck)

73Good
How it's scored
18/18One-command bootstrap — Makefile, docs/Makefile
22/22Automated tests
11/11Lint / format config — .pylintrc
11/11Static type checking — chalice/py.typed
0/10Reproducible environment
0/10Demonstrated agent practice — no agent-authored commits among the last 100
8/8Automated maintenance — 9 of the last 100 commits are automated dependency updates
3/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 3
Inputs used
has_nixno
has_testsyes
lockfiles—
has_dockerfileno
typed_languageno
bootstrap_filesMakefile, docs/Makefile
has_devcontainerno
has_linter_configyes
typecheck_configschalice/py.typed
agent_commit_share0
toolchain_manifests—
dependency_bot_commit_share0.09

Code legibility for models

78Good
How it's scored
27/45Type-checkable code — Python with type-check config (chalice/py.typed)
51.4/55Manageable file sizes — 9/137 source files over 60KB
Inputs used
primary_languagePython
largest_source_bytes582,376
source_files_sampled137
oversized_source_files9

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 — samples
Inputs used
example_dirssamples
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

11,059GitHub stars
98contributors
18commits, last 12 months
5days since last push
94releases
1bus factor
418open issues
PyPIpackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • pypi download statistics for 'chalice' unavailable this scan (stats endpoint failed after retries); adoption may be under-evidenced

More detail

Star and fork history 0 ★ / 1,011 ⇿
0Stars
1,011Forks
93Releases

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.

Only the most recent history is shown — this repository exceeds the collection window, so the earliest history is not captured.

02004006008001,0001,2001,011252016-072021-072026-08
Major 1Minor 43Patch 49

Each point covers 10 days.

OpenSSF Scorecard 6.6 / 10
6.6aggregate

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 · 2026-09-17 15:51 UTC

10Binary-Artifactsno binaries found in the repo
6Branch-Protectionbranch protection is not maximal on development and all release branches
8CI-Tests17 out of 20 merged PRs checked by a CI test -- score normalized to 8
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
8Code-ReviewFound 15/17 approved changesets -- score normalized to 8
10Contributorsproject has 24 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
5Maintained6 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 5
n/aPackagingpackaging workflow not detected
3Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 3
4SASTSAST tool is not run on all commits -- score normalized to 4
10Security-Policysecurity policy file detected
n/aSigned-Releasesno releases found
9Token-Permissionsdetected GitHub workflow tokens with excessive permissions
0Vulnerabilities23 existing vulnerabilities detected
All dependencies 86

Full resolved dependency set from the GitHub dependency graph: 0 direct and 86 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
PyPIalabaster1.0.0indirect
PyPIast-serialize0.3.0indirect
PyPIastroid3.3.11indirect
PyPIaws-cdk-aws-iam—indirect
PyPIaws-cdk-aws-s3-assets—indirect
PyPIaws-cdk-cloudformation-include—indirect
PyPIaws-cdk-core—indirect
PyPIaws-cdk-lib—indirect
PyPIbabel2.18.0indirect
PyPIboto3—indirect
PyPIboto31.27.0indirect
PyPIboto31.38.15indirect
PyPIboto31.43.5indirect
PyPIbotocore—indirect
PyPIbotocore1.30.0indirect
PyPIbotocore1.43.5indirect
PyPIcertifi2026.4.22indirect
PyPIchalice—indirect
PyPIchalice1.29.0indirect
PyPIcharset-normalizer3.4.7indirect
PyPIclick—indirect
PyPIcoverage7.13.5indirect
PyPIdill0.4.1indirect
PyPIdoc81.1.2indirect
PyPIdocutils0.21.2indirect
PyPIexceptiongroup1.3.1indirect
PyPIflake87.3.0indirect
PyPIhypothesis6.152.4indirect
PyPIidna3.13indirect
PyPIimagesize2.0.0indirect
PyPIiniconfig2.3.0indirect
PyPIinquirer—indirect
PyPIisort6.1.0indirect
PyPIjinja23.1.6indirect
PyPIjmespath—indirect
PyPIjmespath1.1.0indirect
PyPIlibrt0.10.0indirect
PyPImarkupsafe3.0.3indirect
PyPImccabe0.7.0indirect
PyPImypy2.0.0indirect
PyPImypy-extensions1.1.0indirect
PyPIpackaging26.2indirect
PyPIpathspec1.1.1indirect
PyPIpip—indirect
PyPIplatformdirs4.9.6indirect
PyPIpluggy1.6.0indirect
PyPIpycodestyle2.14.0indirect
PyPIpydocstyle6.3.0indirect
PyPIpyflakes3.4.0indirect
PyPIpygments2.20.0indirect
PyPIpyjwt2.7.0indirect
PyPIpylint3.3.9indirect
PyPIpytest—indirect
PyPIpytest7.4.0indirect
PyPIpytest9.0.3indirect
PyPIpytest-cov7.1.0indirect
PyPIpython-dateutil2.9.0.post0indirect
PyPIpyyaml—indirect
PyPIrequests2.33.1indirect
PyPIrestructuredtext-lint2.0.2indirect
PyPIs3transfer0.17.0indirect
PyPIsetuptools—indirect
PyPIsix—indirect
PyPIsix1.17.0indirect
PyPIsnowballstemmer3.0.1indirect
PyPIsortedcontainers2.4.0indirect
PyPIsphinx8.1.3indirect
PyPIsphinxcontrib-applehelp2.0.0indirect
PyPIsphinxcontrib-devhelp2.0.0indirect
PyPIsphinxcontrib-htmlhelp2.1.0indirect
PyPIsphinxcontrib-jsmath1.0.1indirect
PyPIsphinxcontrib-qthelp2.0.0indirect
PyPIsphinxcontrib-serializinghtml2.0.0indirect
PyPIstandard-imghdr3.13.0indirect
PyPIstevedore5.7.0indirect
PyPItomli2.4.1indirect
PyPItomlkit0.14.0indirect
PyPItypes-python-dateutil2.9.0.20260408indirect
PyPItypes-pyyaml6.0.12.20260408indirect
PyPItypes-six1.17.0.20260408indirect
PyPItyping-extensions4.15.0indirect
PyPIurllib32.7.0indirect
PyPIwatchdog2.3.1indirect
PyPIwebsocket-client1.9.0indirect
PyPIwheel—indirect
PyPIwheel0.47.0indirect
Dependency advisories 1

Installing pypi:chalice@1.33.0 pulls in 19 packages, direct and transitive: 1 carry known advisories, of which 1 are direct dependencies.

PackageVersionRelationSeverityAdvisoriesFixed in
pip26.1.2directmoderate226.2.0

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

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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.