What is glyphweave-map-generator?

A skill that turns plain-language descriptions into GlyphWeave tilemap files. A tilemap is a grid-based map made from tiles such as walls, floors, doors, and decorations.

Creating or extending dungeons, rooms, corridors, and layered maps as valid .gemap JSON files.

It removes the need to hand-write coordinate-based JSON for dungeons and other map layouts.

glyphweave-map-generator — Skill for Claude Code and Codex by HsiangNi

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add HsiangNianian/GlyphWeave --skill glyphweave-map-generator

Clone the repo

git clone --depth 1 https://github.com/HsiangNianian/GlyphWeave

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/hsiangnianian/glyphweave/glyphweave-map-generator/github.svg)](https://agentmods.dev/skills/hsiangnianian/glyphweave/glyphweave-map-generator)

Your own site

<a href="https://agentmods.dev/skills/hsiangnianian/glyphweave/glyphweave-map-generator"><img src="https://agentmods.dev/badge/skills/hsiangnianian/glyphweave/glyphweave-map-generator/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/hsiangnianian/glyphweave/glyphweave-map-generator"><img src="https://agentmods.dev/badge/skills/hsiangnianian/glyphweave/glyphweave-map-generator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 105 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,419 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00105	$0.03419
Opus 5	$0.00053	$0.01709
Sonnet 5	$0.00021	$0.00684
Haiku 4.5	$0.00011	$0.00342

Measured 11d ago against content hash 53833a1f5dfa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

glyphweave-map-generator scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -X POST http://localhost:5173/api/render \

.agents/skills/glyphweave-map-generator/SKILL.md · 376 lines

How it starts

The opening of the file, as written. The whole thing — 376 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GlyphWeave Map Generator

Generate valid GlyphWeave .gemap JSON tilemaps from natural language descriptions. This skill covers the map format, tile reference, design patterns, and generation workflow.

1. Map Format (.gemap JSON)

A GlyphWeave map is a JSON object. The only required field is tiles (flat) or layerTiles + layers (multi-layer).

{
  "tiles":       { "0,0": "wall", "1,0": "floor", ... },
  "worldName":   "My Dungeon",
  "themeId":     "ansi-16",
  "version":     2
}

Coordinate System

Keys: "{x},{y}" — 0-indexed from top-left, no spaces
Sparse: only non-void tiles need keys; omitted = void
Negative coords are valid (bounds auto-detect)
null value explicitly removes a tile

{
  "tiles": {
    "0,0": "wall",
    "5,3": "floor",
    "10,7": "door",
    "2,4": null
  }
}

Layer System (optional)

{
  "layerTiles": {
    "ground": { "0,0": "wall", "1,0": "floor" },
    "decor":  { "1,0": "blood" }
  },
  "layers": [
    { "id": "ground", "name": "Ground", "visible": true, "locked": false },
    { "id": "decor",  "name": "Decor",  "visible": true, "locked": false }
  ]
}

layerTiles requires matching layers array
Render order: first layer = bottom, last = top
Invisible layers (visible: false) are skipped during render

2. Tile Type Reference

All tile ID strings and their rendered characters:

Walls

ID	Char	Description
`wall`	`#`	Standard dungeon wall
`door`	`+`	Closed door
`doorOpen`	`'`	Open doorway
`pillar`	`0`	Support pillar
`bar`	`│`	Tavern bar / fence

Floors

ID	Char	Description
`floor`	`.`	Standard floor
`floorAlt`	`,`	Alternate floor (variation)
`bridge`	`═`	Bridge over water/lava

Water

ID	Char	Description
`water`	`~`	Shallow water
`deepWater`	`≈`	Deep water

Terrain

ID	Char	Description
`lava`	`~`	Lava (rendered orange/red)
`void`		Empty space (omit from tiles)

Read the full file on GitHub · 376 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

README.md 518 B

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

11d ago First seen · 376 lines · 105 tokens per session scan A 53833a1f5dfa

Subscribe to this mod's changes

glyphweave-map-generator is a skill published in the GitHub repository HsiangNianian/GlyphWeave (5 stars, last pushed today), licensed MIT. It adds 105 tokens to every session and 3,419 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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