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.
npx skills add thierryc/Glyphs-mcp --skill glyphs-mcp-featuresgit clone --depth 1 https://github.com/thierryc/Glyphs-mcpWrote 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.
[](https://agentmods.dev/skills/thierryc/glyphs-mcp/glyphs-mcp-features)<a href="https://agentmods.dev/skills/thierryc/glyphs-mcp/glyphs-mcp-features"><img src="https://agentmods.dev/badge/skills/thierryc/glyphs-mcp/glyphs-mcp-features/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.
<a href="https://agentmods.dev/skills/thierryc/glyphs-mcp/glyphs-mcp-features"><img src="https://agentmods.dev/badge/skills/thierryc/glyphs-mcp/glyphs-mcp-features.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00039 | $0.00377 |
| Opus 5 | $0.00019 | $0.00188 |
| Sonnet 5 | $0.00008 | $0.00075 |
| Haiku 4.5 | $0.00004 | $0.00038 |
Grade A, and why
glyphs-mcp-features scanned grade A with 0 findings 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Glyphs MCP features
Use this skill for OpenType feature inspection, especially stylistic-set listings.
Core rules
- For "style set", "stylistic set", or
ssXXlisting questions, calllist_style_setsfirst. - Use each style set's
showMarkdowngroup link in the final answer when available. It should be an HTTP bridge link so clients render it as clickable. - Do not render linked glyph names as inline code.
- Default to one group-level link per style set; only add per-glyph links if the user asks.
- If
showUrlUnavailableReasonis present, report why links are unavailable. - Never mutate or auto-save the font for feature inspection.
Workflow
- Read current font context with
list_open_fonts. - Call
list_style_setsfor the target font. - Summarize each set with:
- tag and name
- substitution count
- group-level
showMarkdown - source glyphs affected by the feature
- Mention skipped unsupported/contextual rules only when the tool reports warnings.
Deeper references
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.
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 · 35 lines · 39 tokens per session scan A eaa874847aaa
glyphs-mcp-features is a skill published in the GitHub repository thierryc/Glyphs-mcp (44 stars, last pushed today), licensed Apache-2.0. It adds 39 tokens to every session and 377 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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