---
phase: 13-osint_package_registries_container_iac
plan: 01
subsystem: recon
tags: [npm, pypi, crates.io, rubygems, package-registry, osint]

requires:
  - phase: 10-osint-code-hosting
    provides: ReconSource interface, Client, BuildQueries, LimiterRegistry patterns
provides:
  - NpmSource searching npm registry JSON API
  - PyPISource scraping pypi.org search HTML
  - CratesIOSource searching crates.io JSON API with custom User-Agent
  - RubyGemsSource searching rubygems.org search.json API
affects: [13-osint_package_registries_container_iac, register.go]

tech-stack:
  added: []
  patterns: [JSON API source pattern, HTML scraping source pattern with extractAnchorHrefs reuse]

key-files:
  created:
    - pkg/recon/sources/npm.go
    - pkg/recon/sources/npm_test.go
    - pkg/recon/sources/pypi.go
    - pkg/recon/sources/pypi_test.go
    - pkg/recon/sources/cratesio.go
    - pkg/recon/sources/cratesio_test.go
    - pkg/recon/sources/rubygems.go
    - pkg/recon/sources/rubygems_test.go
  modified: []

key-decisions:
  - "PyPI uses HTML scraping with extractAnchorHrefs (reusing Replit pattern) since PyPI has no public search JSON API"
  - "CratesIO sets custom User-Agent per crates.io API requirements"

patterns-established:
  - "Package registry source pattern: credentialless, JSON API search, bare keyword queries via BuildQueries"

requirements-completed: [RECON-PKG-01, RECON-PKG-02]

duration: 3min
completed: 2026-04-06
---

# Phase 13 Plan 01: Package Registry Sources Summary

**Four package registry ReconSources (npm, PyPI, crates.io, RubyGems) searching JS/Python/Rust/Ruby ecosystems for provider keyword matches**

## Performance

- **Duration:** 3 min
- **Started:** 2026-04-06T09:51:16Z
- **Completed:** 2026-04-06T09:54:00Z
- **Tasks:** 2
- **Files modified:** 8

## Accomplishments
- NpmSource searches npm registry JSON API with 20-result pagination per keyword
- PyPISource scrapes pypi.org search HTML reusing extractAnchorHrefs from Replit pattern
- CratesIOSource queries crates.io JSON API with required custom User-Agent header
- RubyGemsSource queries rubygems.org search.json with fallback URL construction
- All four sources credentialless, rate-limited, context-aware with httptest test coverage

## Task Commits

Each task was committed atomically:

1. **Task 1: Implement NpmSource and PyPISource** - `4b268d1` (feat)
2. **Task 2: Implement CratesIOSource and RubyGemsSource** - `9907e24` (feat)

## Files Created/Modified
- `pkg/recon/sources/npm.go` - NpmSource searching npm registry JSON API
- `pkg/recon/sources/npm_test.go` - httptest tests for NpmSource (4 tests)
- `pkg/recon/sources/pypi.go` - PyPISource scraping pypi.org search HTML
- `pkg/recon/sources/pypi_test.go` - httptest tests for PyPISource (4 tests)
- `pkg/recon/sources/cratesio.go` - CratesIOSource with custom User-Agent
- `pkg/recon/sources/cratesio_test.go` - httptest tests verifying User-Agent header (4 tests)
- `pkg/recon/sources/rubygems.go` - RubyGemsSource searching rubygems.org JSON API
- `pkg/recon/sources/rubygems_test.go` - httptest tests for RubyGemsSource (4 tests)

## Decisions Made
- PyPI uses HTML scraping with extractAnchorHrefs (reusing Replit pattern) since PyPI has no public search JSON API
- CratesIO sets custom User-Agent header per crates.io API policy requirements
- All sources use bare keyword queries via BuildQueries default path

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered
None

## User Setup Required
None - no external service configuration required.

## Known Stubs
None - all sources fully wired with real API endpoints and functional Sweep implementations.

## Next Phase Readiness
- Four package registry sources ready for RegisterAll wiring
- Pattern established for remaining registry sources (Maven, NuGet, GoProxy)

---
*Phase: 13-osint_package_registries_container_iac*
*Completed: 2026-04-06*