Public record
Software health reportschema 0.27.0 · metrics 2.10.0 · 2026-07-23 00:40 UTC

nano-step / nano-brain

Persistent memory & code intelligence server for AI coding agents. Deploy on VPS for shared memory across machines. Hybrid search (BM25 + pgvector), knowledge graph, impact analysis. 14 MCP tools. Works with Claude Code, OpenCode, Cursor, and any MCP client.

GoMIT★ 8 stars⑂ 1 forksince Feb 2026View on GitHub ↗
KindNetwork serviceLibraryhow this is determined
#ai-agents#ai-memory#claude-code#golang#hybrid-search#knowledge-graph#mcp#opencode#pgvector#rag

nano-step/nano-brain holds a health index of 73 out of 100, placing it in the Good band. It scores highest on AI Readiness (85/100) and lowest on Security (38/100). It was last updated 4 days ago. A single contributor accounts for most of its recent work.

73
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.

73
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 64 is calibrated to 73 on the published index scale (record calibration 2026-08-02).

Ownership

Nano StepOrganization
4 followers39 public repossince Feb 2026

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
npm@nano-step/nano-brain2026.7.170427,6832475 days agoaimemorymcpcoding-agentsearchpgvector

Metrics by category

Vitality

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

83Excellent · 21% of overall

Development activity

78Good
How it's scored
36/36Push recency — last push 4 days ago
14.5/36Commit cadence — 21/52 weeks with commits
18/18Commit volume — 1,003 commits in the last year
10/10OpenSSF Scorecard: Maintained — 30 commit(s) and 28 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year1,003
human_commit_share1
days_since_last_push4
active_weeks_last_year21

Release discipline

90Excellent
How it's scored
27/27Ships releases — 100 releases published
36/36Release recency — latest release 5 days ago
27/27Release cadence — a release every ~0.7 days
0/10OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases.
Inputs used
releases_count100
latest_release_tagv2026.7.1704
releases_from_tagsno
days_since_latest_release5
mean_days_between_releases0.7

Community & Adoption

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

42Weak · 17% of overall

Popularity & adoption

14Critical
How it's scored
13.7/60Stars — 8 stars
0/25Forks — 1 forks
0/15Watchers — 0 watchers
Inputs used
forks1
stars8
watchers0
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

50Moderate
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (MIT)
0/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges—
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_services—
has_pull_request_templateno

Ecosystem adoption (downloads)

74Good
How it's scored
59.2/80Monthly downloads — 27,683 downloads/month across npm
0/20Registry dependents — not reported by this ecosystem
Inputs used
packages@nano-step/nano-brain
dependents—
ecosystemsnpm
total_downloads—
monthly_downloads27,683
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?

59Moderate · 23% of overall

Maintainer resilience (bus factor)

16Critical
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
2.5/22.5Commit distribution — top contributor authored 89% of commits
4.1/13.5Contributor breadth — 3 contributors
0/10OpenSSF Scorecard: Contributors — project has 0 contributing companies or organizations -- score normalized to 0
Inputs used
bus_factor1
contributors_sampled3
top_contributor_share0.891

Issue & PR responsiveness

76Good
How it's scored
37.4/42Issue resolution — 89% of issues closed
29.1/30PR acceptance — 293/302 decided PRs merged
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
0/15OpenSSF Scorecard: Code-Review — Found 1/26 approved changesets -- score normalized to 0
Inputs used
merged_prs293
open_issues34
closed_issues277
prs_merged_7d—
prs_decided_7d—
prs_merged_30d—
prs_decided_30d—
issue_closed_ratio0.891
closed_unmerged_prs9
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
30/30Ownership backing — organization-owned
0/20Verified domain — verified-domain status not read for this organization
5/25Owner reach — 4 followers of nano-step
12.5/25Track record — 39 public repos, account ~0 yr old
Inputs used
followers4
owner_typeOrganization
is_verified—
owner_loginnano-step
public_repos39
account_age_days147
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 npm
35/35Publish recency — latest publish 5 days ago
20/20Version history — 247 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packages@nano-step/nano-brain
ecosystemsnpm
any_deprecatedno
min_days_since_publish5

Engineering Quality

Are baseline engineering and documentation practices in place?

84Excellent · 19% of overall

Engineering practices

84Excellent
How it's scored
24/24CI workflows — 3 workflow(s)
24/24Tests present
16/16Linter config — .golangci.yml
0/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests — 25 out of 25 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configno

Documentation

85Excellent
How it's scored
30/30README
25/25Documentation directory
0/15Documentation / homepage site
10/10Repository description
10/10Topics — 10 topics
10/10Wiki
Inputs used
topicsai-agents, ai-memory, claude-code, golang, hybrid-search, knowledge-graph, mcp, opencode, pgvector, rag
has_wikiyes
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?

38Weak · 16% of overall

Security posture

38Weak
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 — 25 out of 25 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
0/7.5Code-Review — Found 1/26 approved changesets -- score normalized to 0
0/2.5Contributors — project has 0 contributing companies or organizations -- score normalized to 0
10/10Dangerous-Workflow — no dangerous workflow patterns detected
0/7.5Dependency-Update-Tool — no update tool detected
5/5Fuzzing — project is fuzzed
2.5/2.5License — license file detected
7.5/7.5Maintained — 30 commit(s) and 28 issue activity found in the last 90 days -- score normalized to 10
5/5Packaging — packaging workflow detected
0/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — Project has not signed or included provenance with any releases.
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
0/7.5Vulnerabilities — 36 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated18
scorecard_versionv5.5.0
checks_inconclusive0
scorecard_aggregate3.8

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.

85Excellent · 4% of overall

Agent context & guidance

85Excellent
How it's scored
45/45Agent instructions — AGENTS.md, CLAUDE.md, cmd/nano-brain/AGENTS.md, internal/embed/AGENTS.md, internal/graph/AGENTS.md, internal/harvest/AGENTS.md, internal/mcp/AGENTS.md, internal/search/AGENTS.md, internal/server/handlers/AGENTS.md, internal/storage/AGENTS.md
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 98 of 100 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.98
agent_instruction_filesAGENTS.md, CLAUDE.md, cmd/nano-brain/AGENTS.md, internal/embed/AGENTS.md, internal/graph/AGENTS.md, internal/harvest/AGENTS.md, internal/mcp/AGENTS.md, internal/search/AGENTS.md, internal/server/handlers/AGENTS.md, internal/storage/AGENTS.md
agent_instruction_max_bytes29,196

Verify loop (build / test / typecheck)

74Good
How it's scored
18/18One-command bootstrap — Makefile
22/22Automated tests
11/11Lint / format config — .golangci.yml
11/11Static type checking — internal/graph/testdata/import-fixture/repo-a/tsconfig.json, internal/graph/testdata/import-fixture/repo-b/tsconfig.json
10/10Reproducible environment — Dockerfile, lockfile
2/10Demonstrated agent practice — 1 of the last 100 commits agent-authored or agent-credited
0/8Automated maintenance — no automated dependency updates observed
0/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfilesgo.sum
has_dockerfileyes
typed_languageyes
bootstrap_filesMakefile
has_devcontainerno
has_linter_configyes
typecheck_configsinternal/graph/testdata/import-fixture/repo-a/tsconfig.json, internal/graph/testdata/import-fixture/repo-b/tsconfig.json
agent_commit_share0.01
toolchain_manifestsgo.mod
dependency_bot_commit_share0

Code legibility for models

100Exceptional
How it's scored
45/45Type-checkable code — Go (statically typed)
54.9/55Manageable file sizes — 1/560 source files over 60KB
Inputs used
primary_languageGo
largest_source_bytes114,968
source_files_sampled560
oversized_source_files1

Machine-readable interfaces

100Exceptional
How it's scored
40/40API schema (OpenAPI/GraphQL/proto) — docs/openapi.json, internal/server/handlers/openapi.json
20/20MCP server
40/40Runnable examples — examples
Inputs used
example_dirsexamples
has_mcp_signalyes
api_schema_filesdocs/openapi.json, internal/server/handlers/openapi.json
interfaces_expected_ofnetwork-service

Key facts

8GitHub stars
3contributors
1,003commits, last 12 months
4days since last push
100releases
1bus factor
34open issues
Go, npmpackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • Could not fetch go package 'github.com/nano-brain/nano-brain' from its registry
  • GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository
  • deps.dev does not index npm:@nano-step/nano-brain@2026.7.1704; advisories assessed against the repository dependency graph instead

More detail

OpenSSF Scorecard 3.8 / 10
3.8aggregate

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 · 2026-07-23 00:39 UTC

10Binary-Artifactsno binaries found in the repo
0Branch-Protectionbranch protection not enabled on development/release branches
10CI-Tests25 out of 25 merged PRs checked by a CI test -- score normalized to 10
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
0Code-ReviewFound 1/26 approved changesets -- score normalized to 0
0Contributorsproject has 0 contributing companies or organizations -- score normalized to 0
10Dangerous-Workflowno dangerous workflow patterns detected
0Dependency-Update-Toolno update tool detected
10Fuzzingproject is fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 28 issue activity found in the last 90 days -- score normalized to 10
10Packagingpackaging workflow detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTSAST tool is not run on all commits -- score normalized to 0
0Security-Policysecurity policy file not detected
0Signed-ReleasesProject has not signed or included provenance with any releases.
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
0Vulnerabilities36 existing vulnerabilities detected
Direct dependencies 30
RegistryPackageVersion constraintManifest
Gogithub.com/BurntSushi/tomlv1.6.0go.mod
Gogithub.com/fsnotify/fsnotifyv1.9.0go.mod
Gogithub.com/getkin/kin-openapiv0.140.0go.mod
Gogithub.com/google/uuidv1.6.0go.mod
Gogithub.com/hashicorp/golang-lru/v2v2.0.7go.mod
Gogithub.com/jackc/pgerrcodev0.0.0-20250907135507-afb5586c32a6go.mod
Gogithub.com/jackc/pgx/v5v5.7.2go.mod
Gogithub.com/knadh/koanf/parsers/yamlv1.1.0go.mod
Gogithub.com/knadh/koanf/providers/filev1.2.1go.mod
Gogithub.com/knadh/koanf/providers/structsv1.0.0go.mod
Gogithub.com/knadh/koanf/v2v2.3.4go.mod
Gogithub.com/labstack/echo/v4v4.12.0go.mod
Gogithub.com/lib/pqv1.12.3go.mod
Gogithub.com/modelcontextprotocol/go-sdkv0.8.0go.mod
Gogithub.com/natefinch/lumberjackv2.0.0+incompatiblego.mod
Gogithub.com/odvcencio/gotreesitterv0.19.1go.mod
Gogithub.com/pgvector/pgvector-gov0.2.2go.mod
Gogithub.com/pressly/goose/v3v3.22.1go.mod
Gogithub.com/rs/zerologv1.35.1go.mod
Gogithub.com/sabhiram/go-gitignorev0.0.0-20210923224102-525f6e181f06go.mod
Gogithub.com/sqlc-dev/pqtypev0.3.0go.mod
Gogithub.com/stretchr/testifyv1.9.0go.mod
Gogithub.com/swaggo/swagv1.16.6go.mod
Gogolang.org/x/cryptov0.39.0go.mod
Gogolang.org/x/netv0.41.0go.mod
Gogolang.org/x/syncv0.15.0go.mod
Gogolang.org/x/timev0.9.0go.mod
Gogopkg.in/yaml.v3v3.0.1go.mod
Gomodernc.org/sqlitev1.38.2go.mod
npm@nano-step/oh-my-harness^1.1.3package.json
All dependencies not collected

The resolved dependency set could not be collected for this report: GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository

Raw JSON report machine-readable

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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 v0.27.0 — full methodology · metrics wiki.

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