Porchlamp — Find the projects that leave the light on Open-source projects ranked by what happens to a stranger's pull request, not by stars. 212,390 pull requests across 11,000 repositories audited with cryptographic provenance. https://porchlamp.org/ 2026-10-14T00:00:00Z https://porchlamp.org/og.png https://porchlamp.org/favicon.svg Rahul Kumar (pctablet505) https://github.com/pctablet505 Porchlamp Snapshot 2026-10-14 (Benchmark 2.0.0-rc1): 11,000 Open-Source Repositories Audited https://porchlamp.org/#snapshot-2026-10-14 2026-10-14T00:00:00Z Six-month empirical audit of 212,390 pull requests from 110,605 outside contributors across 11,000 repositories in npm, PyPI, crates.io, Go, Maven, and Systems. 3,833 repositories ranked, 5,790 gated at Stage 0 (including 1,133 pull-request black holes), and 1,377 unrated (<60% parameter coverage). Stars Don't Review Pull Requests: 26.4% of Active Open-Source Projects Are Black Holes https://porchlamp.org/?tab=notranked 2026-10-14T00:00:00Z Of 4,297 licensed, maintained software projects receiving at least 10 outside pull requests in six months, 1,133 (26.4%) left most stranger pull requests with no human reply, review, or merge for 14 days. The black-hole share rises with star count: 21% at 1k–10k stars, 31% at 10k–50k, and 39% at 50k+ stars. Best Open-Source Projects for First-Time Contributors (1,968 Ranked Repositories) https://porchlamp.org/?persona=first_timer 2026-10-14T00:00:00Z Repositories re-weighted for first-time contributors: prioritizing fast Time to First Human Response, First-Timer Merge Rate, Active Good First Issues, Newcomer Conversion, and low 14-day PR Ghost Rate. Best Open-Source Projects for AI-Assisted Contributors (3,929 Ranked Repositories) https://porchlamp.org/?persona=ai_assisted 2026-10-14T00:00:00Z Repositories evaluated under the AI-Assisted contributor lens, combining explicit AI Policy Posture, automated CI/CD pipeline defenses, and maintainer responsiveness to outside pull requests. Leverage vs. Friction 2D Discovery Matrix (Sweet Spot, Crucible, Nursery, Low Priority) https://porchlamp.org/?tab=matrix 2026-10-14T00:00:00Z Interactive two-dimensional mapping of ecosystem leverage (dependents, criticality, downloads) against contributor friction (response latency, ghost rate, governance barriers) to isolate Sweet Spot repositories. Porchlamp Methodology, 18 Parameters, Stage-0 Gates & SHA-256 Verification Hashes https://porchlamp.org/?tab=methodology 2026-10-14T00:00:00Z Complete specification of Porchlamp's 5 pillars, 18 parameters, coverage-based tier ceilings (D-MISS-3), Stage-0 gating rules, and deterministic reproduction hashes (constants_hash 6e4f3e8e1d0c…, manifest_root 85d93789d7a5…).