point-rendering-and-clustering SKILL.md skillA
point-rendering-and-clustering from yuiseki/map-from-scratch is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add yuiseki/map-from-scratch/point-rendering-and-clustering@git:20261030.e7cf6b3Pins git:20261030.e7cf6b3 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- yuiseki/map-from-scratch
- Path
.agents/skills/point-rendering-and-clustering/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261030.e7cf6b3, committed Oct 30, 2026
- First version recorded
- Oct 26, 2026
- Size
- 23,758 bytes
- Repository stars
- 24
- License
- GPL-3.0
How map engines draw many point features (markers, circles, dots, point clouds) and reduce them (clustering, aggregation, thinning, sampling, point budgets), with the trade-offs and numbers they recorded. Load it when a map-from-scratch request has thousands or more points, POIs, markers, vehicles or LiDAR/point clouds, asks for clusters, hexbins, grids or heatmaps, says "show every point" or "points must not overlap", or when choosing how to draw a circle marker, hide or filter points, or cap…
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
# Point rendering and clustering A point layer is cheap per feature and expensive in bulk. Engines kept finding the same four costs: a collision or placement step run for every symbol whether or not anything can be culled; a draw call, path or object per point; fragments, which grow with marker radius, overlap and device pixel ratio; and objects or buffers rebuilt when only a few values changed. The reductions (clusters, aggregates, samples, budgets) each lose something different: counts, completeness or stability under zoom. This skill collects what 27 engines decided. Per-engine detail, with more numbers, is in [references/engines.md](references/engines.md). The local examples already cover additive density (04), points that appear over time (03) and a few thousand hoverable circles (07); `skills/map-from-scratch/references/patterns.md` has the stride and id-picking patterns, which are not repeated here. ## Decide first: is overlap allowed, and must every point be visible? Write the answer into `spec.yaml` `architecture_selection.not_doing` before any code. It selects the whole design: | The request says | Choose | Loses | | --- | --- | --- | …
Read the whole file at its exact version.
How to install
mdr add yuiseki/map-from-scratch/point-rendering-and-clustering@sha256:0652d6056fe1533bThe line at the top of this page pins the label git:20261030.e7cf6b3, 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_uhy2vtqfq6ylxd4q)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Oct 26, 2026 and Oct 30, 2026, about one every 2 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261030.e7cf6b3 latest | 2026-10-30 | e7cf6b3 | 23,758 B | A | view · diff |
| git:20261027.231c915 | 2026-10-27 | 231c915 | 23,109 B | A | view · diff |
| git:20261026.79a684e | 2026-10-26 | 79a684e | 23,107 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (23758 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
yuiseki/map-from-scratch · 24 stars · license GPL-3.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uhy2vtqfq6ylxd4q GET https://markdownregistry.com/api/v1/resolve?ref=yuiseki/map-from-scratch/point-rendering-and-clustering GET https://markdownregistry.com/api/v1/blob/0652d6056fe1533b29560e8199f06a107a4fb448f5ff5fe87930991220b3659a
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: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.