text-rendering SKILL.md skillA
text-rendering 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/text-rendering@git:20261027.231c915Pins git:20261027.231c915 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/text-rendering/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261027.231c915, committed Oct 27, 2026
- First version recorded
- Oct 26, 2026
- Size
- 27,432 bytes
- Repository stars
- 24
- License
- GPL-3.0
How 40 map engines draw label text (DOM vs Canvas2D vs bitmap/SDF/MSDF glyph atlases, where glyphs come from, CJK, shaping and bidi, halos, atlas packing, pixel snapping, device pixel ratio) and what a purpose-built renderer should bake instead. Load it when a map-from-scratch request puts text on the map itself (place names, road names, values, labels that pan, zoom or rotate with the map, Japanese/CJK or RTL labels, halos), before writing spec.yaml architecture_selection or bake.ts for the…
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
# Text on the map: glyphs, shaping, halos and atlases Text is the part of a map renderer that pulls in the most machinery: fonts, a rasteriser, shaping and bidi for non-Latin scripts, a glyph atlas and its packing, halos, collision, and sharpness at every pixel ratio. General engines carry all of it because they cannot know which strings and scripts will appear. A renderer made for one request usually knows its label set at bake time, so most of that machinery can move into `bake.ts` or disappear. This skill collects what the engines decided and why, so the choice can be made from evidence. Label placement and collision are a separate topic (the `label-placement` skill next to this one); only the parts that touch text drawing are here. Per-engine detail is in [references/engines.md](references/engines.md). ## First decision: does the text need to be drawn by the renderer? | The request needs | Draw text with | Evidence | | --- | --- | --- | | a caption, a name on tap | the DOM, outside the renderer | already the repo's pattern (01, 02, 03) [111]; DOM labels are fine for few labels but were not fast enough at vector-tile density in iTowns [86] | …
Read the whole file at its exact version.
How to install
mdr add yuiseki/map-from-scratch/text-rendering@sha256:ddd5de1c35c8cc7bThe line at the top of this page pins the label git:20261027.231c915, 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_4utxchpx4sd27okz)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Oct 26, 2026 and Oct 27, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261027.231c915 latest | 2026-10-27 | 231c915 | 27,432 B | A | view · diff |
| git:20261026.79a684e | 2026-10-26 | 79a684e | 27,430 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 (27432 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_4utxchpx4sd27okz GET https://markdownregistry.com/api/v1/resolve?ref=yuiseki/map-from-scratch/text-rendering GET https://markdownregistry.com/api/v1/blob/ddd5de1c35c8cc7b83831ddd25f98b41f42fc98b04bc3e23c58e1d83ff183216
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.