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 playcanvas/create-playcanvas --skill reduce-draw-callsgit clone --depth 1 https://github.com/playcanvas/create-playcanvasWrote 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/playcanvas/create-playcanvas/reduce-draw-calls)<a href="https://agentmods.dev/skills/playcanvas/create-playcanvas/reduce-draw-calls"><img src="https://agentmods.dev/badge/skills/playcanvas/create-playcanvas/reduce-draw-calls/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/playcanvas/create-playcanvas/reduce-draw-calls"><img src="https://agentmods.dev/badge/skills/playcanvas/create-playcanvas/reduce-draw-calls.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00033 | $0.00421 |
| Opus 5.5 | $0.00013 | $0.00168 |
| Sonnet 5.5 | $0.00007 | $0.00084 |
| Haiku 4.5 | $0.00003 | $0.00042 |
Grade A, and why
reduce-draw-calls 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 23d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- reduce-draw-calls — 100% identical, 0 lines differ
What it actually says
Cut draw calls
Measure first with app.stats.drawCallCount or MiniStats; the per-pass app.stats.drawCalls
breakdown fills only in profiler builds. Also halve the pixel ratio and call app.resizeCanvas():
if frame time drops, the cost is fill rate, not draw calls. Stop at the first rung that meets the
budget and report before-and-after counts.
1. Stop drawing hidden things
An element at opacity 0 still draws. Set enabled = false.
2. BatchManager
Call app.batcher.addGroup(name, dynamic, maxAabbSize), then set batchGroupId on render, sprite,
or element components. Use dynamic: false for geometry that never moves. Members join when
enabled in the live tree, in any order, and groups regenerate automatically when membership
changes. Call markGroupDirty(id) only after moving members of a static group. Manual AppOptions
bootstraps must set batchManager.
3. Hardware instancing
Use this for many copies of one mesh and material with per-frame transforms. Build a buffer with
VertexFormat.getDefaultInstancingFormat(device), one mat4 per instance, and call
meshInstance.setInstancing(vb); instancingCount follows the buffer.
There is no per-instance culling. By default the group always draws; setInstancing(vb, true)
culls it as one unit against a RenderComponent#customAabb covering every instance. Split large
instance sets into spatial chunks. Custom vertex chunks need the INSTANCING path
(override-shader-chunks). Start from the graphics/instancing-basic and
graphics/instancing-custom examples.
Confirm the image is unchanged with verify-pixels.
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.
- 23d ago Changed 2ee86e20d5c2
- 24d ago Changed · -30 lines · -12 tokens per session 09ac24540c88
- 26d ago Changed · +6 lines 3044a228daf3
- 1mo ago First seen · 62 lines · 45 tokens per session scan A 870fc639e8a3
reduce-draw-calls is a skill published in the GitHub repository playcanvas/create-playcanvas (61 stars, last pushed today), licensed MIT. It adds 33 tokens to every session and 421 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 2026-08-30.
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