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 YZDame/geogebra-mcp-server --skill geogebra-constructgit clone --depth 1 https://github.com/YZDame/geogebra-mcp-serverWrote 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/yzdame/geogebra-mcp-server/geogebra-construct)<a href="https://agentmods.dev/skills/yzdame/geogebra-mcp-server/geogebra-construct"><img src="https://agentmods.dev/badge/skills/yzdame/geogebra-mcp-server/geogebra-construct/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/yzdame/geogebra-mcp-server/geogebra-construct"><img src="https://agentmods.dev/badge/skills/yzdame/geogebra-mcp-server/geogebra-construct.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 | $0.00027 | $0.00505 |
| Opus 5.5 | $0.00011 | $0.00202 |
| Sonnet 5.5 | $0.00005 | $0.00101 |
| Haiku 4.5 | $0.00003 | $0.00051 |
Grade A, and why
geogebra-construct scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Use geogebra_create_html when the user wants a downloadable interactive page.
It generates the page without launching Chromium; the recipient's browser loads
GeoGebra from its network assets. Supply a command array in dependency order.
The page downloads the current, edited applet state as GGB, PNG, SVG, PDF, XML,
or another HTML. Generation alone does not verify the rendering.
Use the server-side tools when actual exported files are needed immediately: clear the construction, execute a command batch, inspect objects and definitions, then export. All calls share one construction; keep a diagram's operations together. Do not mix unrelated diagrams in the same live engine.
For advanced API tasks, call geogebra_api_list_methods to inspect methods exposed
by the running GeoGebra version, then use geogebra_api_call with JSON arguments.
Prefer focused construction/export tools for routine work. Callback-based exports
can be awaited with waitForCallbackIndex; JavaScript event listeners need a real
callback ID marker ({"$ggbCallbackId":"listener-1"}) and events can be read with
geogebra_api_get_callback_events. Methods that
replace or clear construction data require allowDestructive: true.
Prefer constructions expressing relations: M=Midpoint(A,B), c=Circle(A,B,C),
H=Intersect(l,m). Keep free coordinates only for unconstrained inputs. GeoGebra's
three-point circle command is Circle(A,B,C). For LaTeX text objects use the fourth
Boolean: Text("A", A+(-0.3,-0.3), true, true).
The existing GGB export defaults retain LaTeX captions and small point/line sizes.
Use visibleLabels to match the problem's named objects. Avoid exposing automatic
segment and circle labels unless requested. Inspect the rendered result for label
collisions, clipping, and equal axis scaling. Reopen the packed GGB to verify
editability when delivery requires it; XML is not a packed GGB.
For editable publication source, use geogebra_get_semantic_scene and
geogebra_export_source. Read the packaged geometry-export skill when a
conversion reports unsupported relations or coordinate fallbacks.
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.
- 5d ago Changed · +8 lines 28e59efd2eb7
- 6d ago First seen · 31 lines · 27 tokens per session scan A 4da132d15170
geogebra-construct is a skill published in the GitHub repository YZDame/geogebra-mcp-server (2 stars, last pushed 6d ago), licensed MIT. It adds 27 tokens to every session and 505 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-10-11.
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