.github · Organization Defaults

🏛️ The special repository that powers every Bymax One repo.

Org-wide defaults live here, once — the public profile, shared CI, workflow templates, and community health files — and propagate to every repository automatically.

---

ℹ️ Why this repo exists

bymaxone/.github is GitHub's special organization repository. Files placed here become defaults for every repo in the org that doesn't define its own — so we maintain them in one place instead of copy-pasting across dozens of repositories. It is public because organization-wide defaults require a public repo.

---

📂 What lives here

Path	What it is	Shows up…
🏠 profile/README.md	The organization profile	On the org overview page
🔁 .github/workflows/node-ci.yml	Reusable CI — Node example apps — lint · typecheck · format · coverage · e2e · export-audit · mutation	Called by each nest-*-example repo's ci.yml
📚 .github/workflows/node-lib-ci.yml	Reusable CI — Node libraries — lint · typecheck · format · unit+coverage · build · mutation	Called by each @bymax-one/nest-* library's ci.yml
🦀 .github/workflows/rust-ci.yml	Reusable CI — Rust workspaces — fmt · clippy · build & test · llvm-cov · MSRV · cargo-mutants	Called by rust-auth / rust-auth-example
🛡️ .github/workflows/security.yml	Reusable dependency-review (GitHub-owned action only)	Called on public-repo pull requests
🗓️ .github/workflows/peer-advisory-drift.yml	Reusable advisory-drift audit — cross-checks the ranges a package declares against the advisory database; files and closes its own tracking issue	Called weekly by each publishable repo
🧩 .github/actions/setup-node-pnpm	Composite action — pnpm + Node + cache + local file: lib build + install	Used by the reusable jobs
📋 .github/workflow-templates/	Starter workflows + dependabot.yml	In the repo "New workflow" gallery
🤖 .github/copilot-instructions.md · instructions/ · agents/	Copilot code-review reference set — org baseline + per-stack rules + reviewer agent	Copied into a repo (does not auto-propagate)

🩺 Community health files (CONTRIBUTING, CODE_OF_CONDUCT, SECURITY, issue/PR templates) also belong here — they are the next addition and will apply org-wide.

---

🤖 Copilot code review

Two independent layers configure Copilot review across the org:

1. Automatic trigger — the org ruleset copilot-code-review requests a Copilot review on the default branch of every repo (~ALL), new ones included. No per-repo setup.
2. The rules Copilot applies — split by reach:

Layer	Where it lives	Applies to
Universal baseline	Org → Settings → Copilot → Custom instructions	Every repo, automatically
Per-repo instruction files	each repo's own .github/copilot-instructions.md · .github/instructions/* · .github/agents/*	Only that repo

⚠️ Unlike community health files, Copilot instruction files do not propagate from this repo. GitHub reads them only from the repository under review. The set below is the canonical reference — copy what a new repo needs, then append its domain rules (supply-chain contract, crypto/tenant, PII, pixel parity, fiscal math…).

File	For
copilot-instructions.md	org baseline (mirror of the org-settings text)
instructions/code.rust.instructions.md	Rust crates
instructions/code.library.instructions.md	@bymax-one/* libraries
instructions/code.app.instructions.md	apps consuming those libraries
instructions/tests.instructions.md	test suites
agents/agent-code-reviewer.agent.md	reviewer agent definition

---

🔁 Shared CI

Define the toolchain and pipeline once; each repo becomes a thin caller. Fixing a step (a Node bump, an action allow-list workaround, a cache tweak) is a one-line change here that every repo inherits.

💸 Cost philosophy

• ⏱️ Tests never run on a schedule — unit, e2e, and mutation are event-driven (push / pull_request) or on-demand (workflow_dispatch).
• 🧬 Mutation is the deepest gate — it runs only on a default-branch push (or manual dispatch), and only when application source changed (Stryker incremental for Node, cargo-mutants --in-diff for Rust). PRs stay gated by 100% coverage + e2e, which is fast. No mutation runs on a schedule or on the PR path anywhere in the org.
• 🤖 Third-party dependency/security updates are handled by Dependabot on GitHub infrastructure (≈ zero Action minutes) — not a cron CI job.
• 🗓️ One cron CI job exists, and only because Dependabot structurally cannot answer the question: peer-advisory-drift.yml. Dependabot audits what is installed in a repo — the lockfile — and stays quiet while a published peerDependencies range still admits a version with an advisory. The range never changes and becomes wrong anyway, because the advisory database is what moves; the drift arrives with no commit and no alert. That is why it is scheduled rather than event-driven: the degradation happens between releases, when nothing is being pushed. It costs a handful of read-only GraphQL queries; it never builds, and never installs the caller's dependency tree — only semver, into a throwaway $RUNNER_TEMP directory, so the workspace it audits is left untouched.

🚀 Using it in a repo

# .github/workflows/ci.yml
name: CI
on:
  push: { branches: [main] }
  pull_request: { branches: [main] }
  workflow_dispatch:

concurrency:
  group: ci-${{ github.ref }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  ci:
    uses: bymaxone/.github/.github/workflows/node-ci.yml@v1
    with:
      library-repo: bymaxone/nest-cache # a sibling file: dep; "" to skip
      has-web: true
      run-export-audit: true
      run-mutation: true

  security:
    if: github.event_name == 'pull_request'
    uses: bymaxone/.github/.github/workflows/security.yml@v1

Then copy .github/workflow-templates/dependabot.yml to your repo's .github/dependabot.yml.

⚙️ node-ci inputs

Input	Default	Notes
node-version	24
library-repo	""	sibling file: library to check out + build
has-web	true	web build + web coverage + Playwright e2e
run-format-check	true	pnpm format:check
run-e2e-api	true	pnpm test:e2e:api (Testcontainers)
run-e2e-web	true	Playwright web smoke (needs has-web)
run-export-audit	false	pnpm audit:exports (library export contract)
run-mutation	false	Stryker on default-branch push / dispatch only
mutation-source-globs	api/web/src regex	which changed paths trigger mutation

📚 node-lib-ci inputs (libraries)

A library caller routes the generic jobs (lint · typecheck · format · unit+coverage · build · mutation) through node-lib-ci.yml and keeps repo-specific jobs (verify build+integrity+size, Testcontainers e2e, secret-scan) local, plus a visibility-gated security job.

Input	Default	Notes
node-version	24
library-repo	""	sibling file: library to check out + build (usually empty for a library)
run-format-check	true	pnpm format:check
unit-command	pnpm test:cov	the gated unit+coverage command (e.g. pnpm test:cov:all)
build-command	pnpm build	the library build command
run-build	true	run the build job (set false when a local verify job builds)
database-url	""	DATABASE_URL for libs with a Prisma client (empty to skip)
post-install	""	command after install in every job (e.g. prisma generate)
run-mutation	false	Stryker on default-branch push / dispatch only
mutation-source-globs	^(src/)	which changed paths trigger mutation

🦀 rust-ci inputs (Rust workspaces)

A Rust caller routes the universal Cargo gates (fmt · clippy · build & test · cargo-llvm-cov · MSRV · cargo-mutants) through rust-ci.yml and keeps every bespoke job (wasm, fuzz, feature matrix, supply-chain, public-api, npm/web bundles, e2e) local.

Input	Default	Notes
run-build	true	cargo build before the test job
run-coverage	true	cargo llvm-cov line+function gate
coverage-fail-under	100	minimum line & function coverage percent
run-msrv	true	build on the declared MSRV floor
msrv-version	1.90	the MSRV toolchain (matches rust-version)
run-mutation	false	cargo-mutants on default-branch push / dispatch only
mutation-command	cargo mutants --all-features --in-place	the mutation command
mutation-source-globs	^(crates/|src/|bindings/)	which changed paths trigger mutation

🗓️ peer-advisory-drift inputs (publishable packages)

Audits the ranges a package declares — what consumers are told they may install — rather than what its own lockfile pins. Reports one row per declared range with the floor to move to, opens a tracking issue, rewrites it as findings change, and closes it automatically once every range is clear.

Input	Default	Notes
manifest-path	package.json	the manifest whose declared ranges are audited
dependency-types	peerDependencies	comma-separated manifest fields; every field listed is a public claim of support
severity-threshold	low	lowest advisory severity to report — raise per repo rather than discovering later that a moderate finding was filtered
issue-label	peer-advisory-drift	label on the tracking issue, and the key used to find it again
fail-on-drift	false	also fail the job; off by default because a permanently red scheduled run trains people to ignore it

Output	Notes
drift-count	number of declared ranges that admit a vulnerable version — the number of lines to edit, not the number of advisories behind them
advisory-count	total advisory matches, for reporting

The caller must grant issues: write: permissions on a reusable workflow can only narrow what the caller granted.

# .github/workflows/peer-advisory-drift.yml
name: Peer Advisory Drift

on:
  schedule:
    - cron: '17 6 * * 1'
  workflow_dispatch:

# Single-flight across the repository, deliberately NOT keyed by `github.ref`: the
# shared state is one tracking issue per repo, so a ref-scoped group would put a
# dispatch and the scheduled run in different groups and leave the race intact.
concurrency:
  group: peer-advisory-drift
  cancel-in-progress: false

permissions:
  contents: read
  issues: write

jobs:
  drift:
    # `workflow_dispatch` can fire from any branch; auditing an unmerged manifest
    # would write findings that do not describe what the package declares.
    if: github.ref_name == github.event.repository.default_branch
    uses: bymaxone/.github/.github/workflows/peer-advisory-drift.yml@v1

🏷️ Versioning

Pin callers to @v1 (a moving major tag): a deliberate v1.x release propagates to every repo, while a breaking change lands as v2 behind an explicit bump. Never pin a caller to @main.

---

🧭 Project types

Stack	Reusable	Status
🟢 Node libraries — @bymax-one/nest-*	node-lib-ci.yml · security.yml · peer-advisory-drift.yml	✅ Live (@v1)
🟢 Node example apps — nest-*-example	node-ci.yml · security.yml	✅ Live (@v1)
🦀 Rust — rust-auth (library) + rust-auth-example (app)	rust-ci.yml · security.yml	✅ Live (@v1)

🗓️ peer-advisory-drift is Node-only. Example apps are not published, so nothing reads the ranges they declare. Rust is a genuine gap rather than an exclusion: the advisory database exposes the same data under ecosystem: RUST, but auditing it means parsing Cargo.toml and [workspace.dependencies] and honouring Cargo's version semantics, where a bare "1.2" already means ^1.2. cargo-audit covers the installed side there — the same blind spot Dependabot has on the Node side.

---

🔒 Third-party action allow-list

The org restricts Actions to GitHub-owned + verified-marketplace + an explicit pattern allow-list (orgs/bymaxone/actions/permissions/selected-actions). GitHub's verified-creator flag does not cover several actions the Node and Rust pipelines depend on, so those are pattern-allowed explicitly. Current patterns_allowed:

pnpm/action-setup@*                          actions-rust-lang/setup-rust-toolchain@*
Swatinem/rust-cache@*                         taiki-e/install-action@*
ossf/scorecard-action@*                       dtolnay/rust-toolchain@*
dorny/paths-filter@*                          stefanzweifel/git-auto-commit-action@*
docker/build-push-action@*                    docker/login-action@*
docker/metadata-action@*                      docker/setup-buildx-action@*
trufflesecurity/trufflehog@*

Workflows still pin every action to a full commit SHA — @* here only permits the action, it does not relax the pin.

---

🩹 Gotchas / operational notes

Hard-won lessons from rolling these reusables across every repo — read before touching org-level Actions settings or a repo's security workflows.

The allow-list PUT is destructive — always merge

gh api --method PUT orgs/bymaxone/actions/permissions/selected-actions replaces the entire policy. A PUT that sends only the one pattern you're adding silently drops all the others. A workflow that references a now-blocked action fails at startup (startup_failure, "workflow file issue") with no job logs — and, worst of all, the PR shows a misleading CLEAN mergeStateStatus with an empty check-run list, so it would merge with zero CI. Always read the current patterns_allowed, append, and PUT the full set. (verified_allowed: true does not cover taiki-e/install-action, Swatinem/rust-cache, actions-rust-lang/setup-rust-toolchain, dtolnay/rust-toolchain, dorny/paths-filter, ossf/scorecard-action, stefanzweifel/*, or docker/* — they must be explicit.)

CodeQL: default setup vs. a version-controlled codeql.yml

A repo cannot run both the code-scanning default setup and an advanced .github/workflows/codeql.yml. When both are on, the advanced workflow fails its SARIF upload with "CodeQL analyses from advanced configurations cannot be processed when the default setup is enabled." Since the workflow is the source of truth, disable default setup:

gh api --method PATCH repos/OWNER/REPO/code-scanning/default-setup -f state=not-configured

Dependency review is gated on visibility

actions/dependency-review-action needs the dependency graph, which is free only on public repos (or private + GitHub Advanced Security). Gate the security caller so it stays green while a repo is private and activates automatically once it's public:

security:
  if: github.event_name == 'pull_request' && github.event.repository.visibility == 'public'
  uses: bymaxone/.github/.github/workflows/security.yml@v1

Moving the @v1 tag

The reusables are pinned by callers to the moving major @v1. After merging a change to a reusable, advance the tag so callers pick it up:

git checkout main && git pull && git tag -f v1 && git push -f origin v1

---

Bymax One — architecting AI-native systems for production. 🏠 Profile · 🌐 bymax.one