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 agentmods add instructions/sinanata/unity-mesh-fracture/copilot-instructionsgit clone --depth 1 https://github.com/sinanata/unity-mesh-fractureWrote 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/instructions/sinanata/unity-mesh-fracture/copilot-instructions)<a href="https://agentmods.dev/instructions/sinanata/unity-mesh-fracture/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/sinanata/unity-mesh-fracture/copilot-instructions.svg" alt="Measured on agentmods" 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 | $0.00346 | $0.00346 |
| Opus 5 | $0.00173 | $0.00173 |
| Sonnet 5 | $0.00069 | $0.00069 |
| Haiku 4.5 | $0.00035 | $0.00035 |
Grade A, and why
unity-mesh-fracture copilot-instructions.md 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 6d 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
GitHub Copilot instructions
This repository follows the cross-tool AGENTS.md standard. Read /AGENTS.md for the full guide: the MeshFracture API, the bake-at-load / look-up-at-impact pipeline, the material rules, build and preview commands, and the pull-request checklist.
The rules that matter most:
- "Burst" here is the
FractureBurstexplosion component, not Unity's Burst compiler. The runtime is single-threaded managed C# overUnityEnginetypes. Never add[BurstCompile],IJob*,NativeArray<T>, orUnity.Mathematics/Unity.Collections/Unity.Jobsusings — none are dependencies. - Bake at load, look up at impact.
MeshFragmenter.Fragmentis a synchronous O(n²) CPU call; callFragmentCache.RequestPreBakeon a loading screen, thenFragmentCache.TryGetat the moment of impact. - Fragment materials must be transparent, per-burst instances, with ZWrite ON. Copy
MaterialFactory.ConfigureFractureTransparent; don't reintroduce a custom.shader(it renders black on WebGL2). - Source meshes must be Read/Write-enabled, or
Fragmentreads empty vertex arrays. - Two submeshes per fragment: 0 = exterior, 1 = cap/interior — pass both materials to
Initialize. - No
using LeapOfLegends.*. Runtime code lives in theMeshFracturenamespace; demo code underMeshFractureDemo.
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.
- 6d ago First seen · 13 lines · 346 tokens per session scan A 2e84fd03da8f
unity-mesh-fracture copilot-instructions.md is an instructions file published in the GitHub repository sinanata/unity-mesh-fracture (46 stars, last pushed 1mo ago), licensed MIT. It adds 346 tokens to every session, about $0.0017 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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