Borrowing it
Nothing to install: this file belongs to eclipse-rdf4j/rdf4j. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/eclipse-rdf4j/rdf4j/main/.agent/skills/mvnf/SKILL.mdgit clone --depth 1 https://github.com/eclipse-rdf4j/rdf4jWrote 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/eclipse-rdf4j/rdf4j/mvnf)<a href="https://agentmods.dev/skills/eclipse-rdf4j/rdf4j/mvnf"><img src="https://agentmods.dev/badge/skills/eclipse-rdf4j/rdf4j/mvnf/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/eclipse-rdf4j/rdf4j/mvnf"><img src="https://agentmods.dev/badge/skills/eclipse-rdf4j/rdf4j/mvnf.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 | $0.00050 | $0.01840 |
| Opus 5.5 | $0.00020 | $0.00736 |
| Sonnet 5.5 | $0.00010 | $0.00368 |
| Haiku 4.5 | $0.00005 | $0.00184 |
Grade A, and why
mvnf 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.
mvnf
Run Maven tests with repeatable commands and useful failure pointers.
Quick start
- Run a module's full test suite:
python3 .codex/skills/mvnf/scripts/mvnf.py core/sail/shacl
- Run a unit test class or method (module auto-detected):
python3 .codex/skills/mvnf/scripts/mvnf.py ShaclSailTestpython3 .codex/skills/mvnf/scripts/mvnf.py ShaclSailTest#testSomething
- Run an integration test (Failsafe):
python3 .codex/skills/mvnf/scripts/mvnf.py --it ShaclSailIT#testSomething
- Run a focused test in an isolated named workspace:
python3 .codex/skills/mvnf/scripts/mvnf.py --workspace shacl-a ShaclSailTest#testSomething
- Run an isolated lifecycle build:
python3 scripts/mvn-agent.py --workspace shacl-a -- -B -ntp -o -Pquick clean install
What it does
Without --workspace, mvnf preserves the legacy workflow:
- Deletes stale
target/surefire*andtarget/failsafe*artifacts for the selected module. mvn -B -ntp -Dmaven.compiler.showWarnings=false -T 1C -o -Dmaven.repo.local=.m2_repo -Pquick installmvn -o -Dmaven.repo.local=.m2_repo -pl <module> verify(optionally with-DskipITs -Dtest=...for unit tests or-PskipUnitTests -Dit.test=...for Failsafe ITs)
In legacy mode, root install output is stored in maven-build.log. On success, mvnf prints one root-install summary line with BUILD SUCCESS and the log path. Verify logs use logs/mvnf/*-verify.log when retained or when tests fail. By default, successful Maven phases do not print their output tail; mvnf prints compact Surefire/Failsafe report totals and report paths instead. Failed phases still print the retained Maven tail plus compact report failure details.
Isolated workspace mode
Workspace mode is opt-in through --workspace <id> or MVNF_WORKSPACE=<id>; an explicit CLI value takes precedence
over the environment. It requires Maven 3.9.10 or newer. Different workspace IDs may run concurrently, while the same
ID remains exclusive. A legacy workspace-less run conflicts with every live cooperative workspace run.
What ships with it
4 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.
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.
- 7d ago Changed · +51 lines · -18 tokens per session 6add1853d595
- 1mo ago First seen · 68 lines · 68 tokens per session scan A 9639bb9c6c88
mvnf is a skill published in the GitHub repository eclipse-rdf4j/rdf4j (422 stars, last pushed today), licensed BSD-3-Clause. It adds 50 tokens to every session and 1,840 once invoked, about $0.0002 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 2026-09-03.
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