DESIGN.md@examples/playground/src/examples/flyweight-gridA
DESIGN.md@examples/playground/src/examples/flyweight-grid from infinite-system/ivue is a DESIGN.md file: the design rules coding agents follow in that repo.
mdr add infinite-system/ivue/examples/playground/src/examples/flyweight-grid/DESIGN.md@git:20260911.e346f57Pins git:20260911.e346f57 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 14 of 14 checks passed
- Kind
- DESIGN.md file
- Repository
- infinite-system/ivue
- Path
examples/playground/src/examples/flyweight-grid/DESIGN.md- Versions recorded
- 3
- Latest version
- git:20260911.e346f57, committed Sep 11, 2026
- First version recorded
- Jul 13, 2026
- Size
- 9,967 bytes
- Repository stars
- 13
- License
- MIT
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Flyweight Columnar Grid — 20 columns × 1,000,000 rows Status: WORKING & MEASURED — 11/11 structural proofs over a live 20,000,000-cell sheet (repo suite 161/161), demo UI user-verified across all 1M rows, heap protocol complete (see RESULTS.md): **68 ms creation, 89.6 MB model heap = 4.7 B/cell** — 8.5× below the plain-POJO floor, fully reactive. Nothing outside `sketch/flyweight-grid/` touched; `demo/formula/` reference only. Demo: `npx vite sketch/flyweight-grid --host`; measure: `node sketch/flyweight-grid/measure.mjs <url>`. The structural spec — reality vs chosen invariants and the impossibility boundary — lives in `Flyweight.invariants.md`; this document carries the mechanisms, `RESULTS.md` the measurements. ## The invariant this design descends from > **Everything costs proportional to what's observed; nothing costs > proportional to what exists.** The formula grid (`demo/formula`) obeys this invariant for refs and computeds — but its 1M `FormulaCell` _instances_ still exist eagerly, and at 20M cells (~67 B/cell marginal) that's a ~1.3–2.7 GB wall of cell objects. This sketch extends the invariant one level deeper: **the cells themselves don't exist until …
Read the whole file at its exact version.
How to install
mdr add infinite-system/ivue/examples/playground/src/examples/flyweight-grid/DESIGN.md@sha256:efe38074bd18ecc6The line at the top of this page pins the label git:20260911.e346f57, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_n5cdwcigzj5enmc3)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jul 13, 2026 and Sep 11, 2026, about one every 30 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260911.e346f57 latest | 2026-09-11 | e346f57 | 9,967 B | A | view · diff |
| git:20260901.b49a2f7 | 2026-09-01 | b49a2f7 | 9,966 B | A | view · diff |
| git:20260713.6421241 | 2026-07-13 | 6421241 | 9,898 B | A | view |
Audit of the latest version
- pass: Size between 200 bytes and 200 KB (9967 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
infinite-system/ivue · 13 stars · license MIT · pushed 2026-10-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_n5cdwcigzj5enmc3 GET https://markdownregistry.com/api/v1/resolve?ref=infinite-system/ivue/examples/playground/src/examples/flyweight-grid/DESIGN.md GET https://markdownregistry.com/api/v1/blob/efe38074bd18ecc629cc1ea154c24fc25f426eb3097da2d516283a5fea11fe1e
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: what DESIGN.md is and how agents use it · which agent file does what.