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 a-latyshev/dolfinx-external-operator --skill dolfinx-external-operator-assistantgit clone --depth 1 https://github.com/a-latyshev/dolfinx-external-operatorWrote 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/a-latyshev/dolfinx-external-operator/dolfinx-external-operator-assistant)<a href="https://agentmods.dev/skills/a-latyshev/dolfinx-external-operator/dolfinx-external-operator-assistant"><img src="https://agentmods.dev/badge/skills/a-latyshev/dolfinx-external-operator/dolfinx-external-operator-assistant.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 | $0.00056 | $0.02512 |
| Opus 5 | $0.00028 | $0.01256 |
| Sonnet 5 | $0.00011 | $0.00502 |
| Haiku 4.5 | $0.00006 | $0.00251 |
Grade A, and why
dolfinx-external-operator-assistant scanned grade A with 1 finding 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 8d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
* **Trigger**: User request involves spatial derivatives of the external operator (e.g. `ufl.grad(N)`, `ufl.curl(N)`, `ufl.div(N)`) or high-order differentiation (e.g. second derivative `ufl.derivative(F, u, ...)` of a f The source is not reproduced here
Licensed LGPL-3.0
The repository is licensed LGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
13 files 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.
- examples/demos/01_demo_nonlinear_heat_equation_part1.py 67 B runs code
- examples/demos/02_demo_nonlinear_heat_equation_part2.py 67 B runs code
- examples/demos/03_demo_nonlinear_heat_equation_part3.py 67 B runs code
- examples/demos/04_demo_plasticity_von_mises.py 58 B runs code
- examples/demos/05_demo_plasticity_mohr_coulomb.py 61 B runs code
- examples/demos/06_demo_hyperelasticity.py 53 B runs code
- examples/tests/test_codim_external_operator.py 54 B runs code
- examples/tests/test_external_operators_construction.py 62 B runs code
- examples/tests/test_external_operators_evaluation.py 60 B runs code
- examples/tests/test_multiaction.py 42 B runs code
- examples/tests/test_nested_ex_op.py 43 B runs code
- references/FAQ.md 31 B
- references/notation.md 36 B
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.
- 8d ago First seen · 142 lines · 56 tokens per session scan A a09fc69fce21
dolfinx-external-operator-assistant is a skill published in the GitHub repository a-latyshev/dolfinx-external-operator (54 stars, last pushed 1mo ago), licensed LGPL-3.0. It adds 56 tokens to every session and 2,512 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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