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Guide to the GnollHack glyph-to-tile rendering pipeline. An agent skill from hyvanmielenpelit/GnollHack.
Custom licenceAuto-check passed
Install Glyph Tile Display
$ npx skills add hyvanmielenpelit/GnollHack --skill glyph-tile-display -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hyvanmielenpelit/GnollHack glyph-tile-display --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/hyvanmielenpelit/GnollHack.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/glyph-tile-display .claude/skills/glyph-tile-display && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "glyph-tile-display" agent skill from https://github.com/hyvanmielenpelit/GnollHack/tree/master/.claude/skills/glyph-tile-display into .claude/skills/glyph-tile-display/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "glyph-tile-display", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/hyvanmielenpelit/GnollHack/tree/master/.claude/skills/glyph-tile-displayType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add hyvanmielenpelit/GnollHack --skill glyph-tile-display -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hyvanmielenpelit/GnollHack glyph-tile-display --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hyvanmielenpelit/GnollHack.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/glyph-tile-display .agents/skills/glyph-tile-display && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "glyph-tile-display" agent skill from https://github.com/hyvanmielenpelit/GnollHack/tree/master/.claude/skills/glyph-tile-display into .agents/skills/glyph-tile-display/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "glyph-tile-display", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hyvanmielenpelit/GnollHack --skill glyph-tile-display -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hyvanmielenpelit/GnollHack glyph-tile-display --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hyvanmielenpelit/GnollHack.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/glyph-tile-display .cursor/skills/glyph-tile-display && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "glyph-tile-display" agent skill from https://github.com/hyvanmielenpelit/GnollHack/tree/master/.claude/skills/glyph-tile-display into .cursor/skills/glyph-tile-display/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "glyph-tile-display", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/hyvanmielenpelit/GnollHack.git --path .claude/skills/glyph-tile-display--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add hyvanmielenpelit/GnollHack --skill glyph-tile-display -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hyvanmielenpelit/GnollHack glyph-tile-display --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hyvanmielenpelit/GnollHack.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/glyph-tile-display .gemini/skills/glyph-tile-display && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "glyph-tile-display" agent skill from https://github.com/hyvanmielenpelit/GnollHack/tree/master/.claude/skills/glyph-tile-display into .gemini/skills/glyph-tile-display/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "glyph-tile-display", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install hyvanmielenpelit/GnollHack glyph-tile-displayInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add hyvanmielenpelit/GnollHack --skill glyph-tile-display -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hyvanmielenpelit/GnollHack.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/glyph-tile-display .github/skills/glyph-tile-display && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "glyph-tile-display" agent skill from https://github.com/hyvanmielenpelit/GnollHack/tree/master/.claude/skills/glyph-tile-display into .github/skills/glyph-tile-display/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "glyph-tile-display", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hyvanmielenpelit/GnollHack --skill glyph-tile-display -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hyvanmielenpelit/GnollHack glyph-tile-display --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hyvanmielenpelit/GnollHack.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/glyph-tile-display .opencode/skills/glyph-tile-display && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "glyph-tile-display" agent skill from https://github.com/hyvanmielenpelit/GnollHack/tree/master/.claude/skills/glyph-tile-display into .opencode/skills/glyph-tile-display/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "glyph-tile-display", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
glyph-tile-display- GitHub stars
- 161
- Token cost
- ~165 tokens
- SKILL.md length
- 51 words
- Files
- 1
- Skills in repo
- 11
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Guide to the GnollHack glyph-to-tile rendering pipeline. An agent skill from hyvanmielenpelit/GnollHack.
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Glyph Tile Display is an agent skill from hyvanmielenpelit/GnollHack. Guide to the GnollHack glyph-to-tile rendering pipeline. Covers glyph numbering, the multi-layer display system, the LayerInfo struct, tile sheet atlases, the Glyph2Tile mapping, double-buffered MapData, and how SkiaSharp renders tiles on the C side.
Its SKILL.md is about 170 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It works with C#. The repository describes itself as: Modern evolution of the classic roguelike game NetHack.
Example prompts
- “/glyph-tile-display”
What it can do on your machine
Read from SKILL.md and the folder at commit 4f76e12. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Glyph Tile Display loads about 165 tokens when it runs. Until then it costs about 68 tokens; SKILL.md has 51 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 51 words (~165 tokens).
“The full skill lives in this repository's tool-neutral agent directory (.agents/), which is shared with other AI coding agents. This file is only a pointer.”
- name
- glyph-tile-display
Files
Just SKILL.md in .claude/skills/glyph-tile-display of hyvanmielenpelit/GnollHack.
Open the folder on GitHubat commit 4f76e12
Compare with similar skills
Glyph Tile Display next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Glyph Tile Display this skillhyvanmielenpelit/GnollHack | 161 | — | ~165 | Automated safety check: Pass | Custom licence | |
| Minimax DOCXpoco-ai/poco-claw | 1.4k | 7 repos | ~3.9k | Automated safety check: Pass | MIT | |
| Speckit ConstitutionWeihanLi/WeihanLi.Common | 242 | 12 repos | ~2.1k | Automated safety check: Pass | Apache-2.0 | |
| Code Audit3stoneBrother/code-audit | 892 | 1 repos | ~2.7k | Automated safety check: Pass | None | |
| Analyzing .NET Performancedotnet/skills | 5.6k | 3 repos | ~3.1k | Automated safety check: Pass | MIT | |
| Build Teaql Appteaql/teaql-agent-kit | 2.8k | — | ~4.6k | Automated safety check: Pass | MIT |
Similar skills
Speckit Constitution
WeihanLi/WeihanLi.Common
Create or update the project constitution from interactive or provided principle inputs, ensuring all dependent templates stay in sync.
Code Audit
3stoneBrother/code-audit
Professional code security audit skill covering 55+ vulnerability types.
- Official
Analyzing .NET Performance
dotnet/skills
Scans C# and .NET code for about 50 performance anti-patterns and reports prioritized findings with concrete fixes, at a scan depth you choose.
Build Teaql App
teaql/teaql-agent-kit
Build or change a TeaQL application in Java, Rust, Go, Swift, Python, C/.NET, or TypeScript, including Kotlin/JVM applications that consume Java-generated libraries.
Issue Fix
mono/SkiaSharp
Fix bugs in SkiaSharp C bindings. An agent skill from mono/SkiaSharp.
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All 10 skills in this repoClient Implementation Planning
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Implementation planning overlay for the GnollHack client repository.
Sentry Crash Analysis
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Systematic methodology for diagnosing GnollHack crash reports from the Sentry MCP server.
Adding Game Content
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Build Pipeline
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Guide on building GnollHack native C libraries, processing assets with makedefs/levcomp/dgncomp/dlb, packaging nhdat, and compiling the C .NET MAUI frontend for Android, iOS, and Windows.
C Code Documentation
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Best practices for AI agents documenting the GnollHack C codebase.
Client Subagent Guidelines
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Subagent constraints specific to the GnollHack client repository.
Related
Works with
Questions about Glyph Tile Display
What does Glyph Tile Display do?
Guide to the GnollHack glyph-to-tile rendering pipeline. An agent skill from hyvanmielenpelit/GnollHack. Glyph Tile Display is an agent skill from hyvanmielenpelit/GnollHack. Guide to the GnollHack glyph-to-tile rendering pipeline.
How do I install Glyph Tile Display in Claude Code?
Run `npx skills add hyvanmielenpelit/GnollHack --skill glyph-tile-display -a claude-code`. Or copy the skill folder (.claude/skills/glyph-tile-display in hyvanmielenpelit/GnollHack) into .claude/skills/glyph-tile-display in your project. Claude Code loads it when a task matches its description.
How do I install Glyph Tile Display in Codex?
Run `npx skills add hyvanmielenpelit/GnollHack --skill glyph-tile-display -a codex`. Or copy the skill folder (.claude/skills/glyph-tile-display in hyvanmielenpelit/GnollHack) into .agents/skills/glyph-tile-display in your project. Codex loads it when a task matches its description.
Can I use Glyph Tile Display in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add hyvanmielenpelit/GnollHack --skill glyph-tile-display -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/glyph-tile-display, .gemini/skills/glyph-tile-display, .github/skills/glyph-tile-display and .opencode/skills/glyph-tile-display in your project.
What does Glyph Tile Display need to run?
SKILL.md names no scripts, command-line tools or credentials: Glyph Tile Display is instructions for the agent only.
Does Glyph Tile Display access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Glyph Tile Display safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Glyph Tile Display use?
Glyph Tile Display has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Glyph Tile Display use?
About 165 tokens (SKILL.md is roughly 660 characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Glyph Tile Display?
Skills that share tags, products or a category with Glyph Tile Display: Minimax DOCX (poco-ai/poco-claw, 1.4k stars), Speckit Constitution (WeihanLi/WeihanLi.Common, 242 stars), Code Audit (3stoneBrother/code-audit, 892 stars) and Analyzing .NET Performance (dotnet/skills, 5.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Glyph Tile Display?
hyvanmielenpelit (a GitHub organization) maintains it in hyvanmielenpelit/GnollHack, which has 161 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on October 9, 2026.
Source: hyvanmielenpelit/GnollHack on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.