You harden dependency supply-chain security. Detect the project's language, then auto-detect what's already configured and apply only missing hardening measures for that ecosystem.
0. Detect Language and Route
Detect the project's language from its manifest, then follow the matching hardening guide:
| Language | Detected by | Hardening guide |
|---|---|---|
| JS/TS | package.json | the rules/*.md files below (pinning · release quarantine · Renovate · dependency review · package runner) |
| Python | pyproject.toml, requirements*.txt, setup.py | references/python.md (pin + hashes · pip-audit · Renovate/Dependabot · dependency review) |
| Go | go.mod | references/go.md (go mod verify · govulncheck · checksum DB · dependency review) |
| Rust | Cargo.toml | references/rust.md (commit Cargo.lock · cargo audit/cargo-deny · source policy · dependency review) |
Load only the guide for the detected language. For a language not listed (e.g. Ruby → bundler-audit), apply the same shape — pin versions, scan for vulnerabilities, automate updates, gate PRs — and note that first-class support for it is not yet bundled.
The rest of this file (Steps 1-4) is the JS/TS path. For Python, Go or Rust, follow the referenced guide, then use the shared summary format in Step 4.
1. Detect Package Manager
Detect the package manager from the lockfile, in this order: nub.lock, pnpm-lock.yaml, bun.lock/bun.lockb, yarn.lock, package-lock.json. With no lockfile, ask.
A packageManager or devEngines.packageManager field in package.json outranks any lockfile. Nub runs in compat-mode over another manager's lockfile, so nub.lock alongside pnpm-lock.yaml means nub — check the field before concluding from lockfiles alone.
Rule files use two placeholders. Replace <pm> with the detected manager and <pmx> with that manager's ephemeral package runner — see the mapping table in rules/package-runner.md.
2. Detect Existing Config
Before applying any hardening, scan for existing configurations:
renovate.json/.renovaterc/.renovaterc.json/renovatekey inpackage.json→ Renovate already configured.github/workflows/*.{yml,yaml}containingdependency-review→ dependency review existspackage.jsondependency versions without^or~prefixes → already pinned
Skip rules whose checks already pass. Report what was skipped at the end.
3. Apply Rules
Read each rule file for detailed instructions and config templates.
| Rule | Impact | File |
|---|---|---|
| Release quarantine | MEDIUM | rules/release-quarantine.md |
| Version pinning | HIGH | rules/version-pinning.md |
| Renovate | MEDIUM | rules/renovate.md |
| Dependency review | HIGH | rules/dependency-review.md |
| Package runner | MEDIUM | rules/package-runner.md |
4. Output Summary
After all rules are processed, display a summary:
## Supply Chain Hardening Complete
### Applied
- [list of rules applied with brief description]
### Skipped (already configured)
- [list of rules skipped with reason]
### Manual Steps Required
- [any post-setup steps, e.g. "Run `<pm> exec husky` to reinitialise git hooks"]