Web Application Testing
anthropics/skills
Tests local web applications with Python Playwright scripts, checking frontend behavior, capturing screenshots and reading browser console logs.
Run Maven tests in this repo with a consistent workflow (module test-artifact cleanup, root -Pquick install to refresh .m2repo, then module verify or a single test class/method).
$ npx skills add eclipse-rdf4j/rdf4j --skill mvnf -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install eclipse-rdf4j/rdf4j mvnf --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/eclipse-rdf4j/rdf4j.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agent/skills/mvnf .claude/skills/mvnf && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "mvnf" agent skill from https://github.com/eclipse-rdf4j/rdf4j/tree/main/.agent/skills/mvnf into .claude/skills/mvnf/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mvnf", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/eclipse-rdf4j/rdf4j/tree/main/.agent/skills/mvnfType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add eclipse-rdf4j/rdf4j --skill mvnf -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install eclipse-rdf4j/rdf4j mvnf --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/eclipse-rdf4j/rdf4j.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agent/skills/mvnf .agents/skills/mvnf && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "mvnf" agent skill from https://github.com/eclipse-rdf4j/rdf4j/tree/main/.agent/skills/mvnf into .agents/skills/mvnf/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mvnf", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add eclipse-rdf4j/rdf4j --skill mvnf -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install eclipse-rdf4j/rdf4j mvnf --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/eclipse-rdf4j/rdf4j.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agent/skills/mvnf .cursor/skills/mvnf && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "mvnf" agent skill from https://github.com/eclipse-rdf4j/rdf4j/tree/main/.agent/skills/mvnf into .cursor/skills/mvnf/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mvnf", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/eclipse-rdf4j/rdf4j.git --path .agent/skills/mvnf--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add eclipse-rdf4j/rdf4j --skill mvnf -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install eclipse-rdf4j/rdf4j mvnf --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/eclipse-rdf4j/rdf4j.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agent/skills/mvnf .gemini/skills/mvnf && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "mvnf" agent skill from https://github.com/eclipse-rdf4j/rdf4j/tree/main/.agent/skills/mvnf into .gemini/skills/mvnf/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mvnf", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install eclipse-rdf4j/rdf4j mvnfInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add eclipse-rdf4j/rdf4j --skill mvnf -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/eclipse-rdf4j/rdf4j.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agent/skills/mvnf .github/skills/mvnf && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "mvnf" agent skill from https://github.com/eclipse-rdf4j/rdf4j/tree/main/.agent/skills/mvnf into .github/skills/mvnf/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mvnf", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add eclipse-rdf4j/rdf4j --skill mvnf -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install eclipse-rdf4j/rdf4j mvnf --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/eclipse-rdf4j/rdf4j.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agent/skills/mvnf .opencode/skills/mvnf && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "mvnf" agent skill from https://github.com/eclipse-rdf4j/rdf4j/tree/main/.agent/skills/mvnf into .opencode/skills/mvnf/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mvnf", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
mvnfRun Maven tests in this repo with a consistent workflow (module test-artifact cleanup, root -Pquick install to refresh .m2repo, then module verify or a single test class/method).
Mvnf is an agent skill from eclipse-rdf4j/rdf4j. Run Maven tests in this repo with a consistent workflow (module test-artifact cleanup, root -Pquick install to refresh .m2repo, then module verify or a single test class/method). Use when asked to run tests/verify in the rdf4j multi-module build or when the user says mvnf.
Its SKILL.md is about 970 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including scripts (for example `scripts/mvnf.py`).
It sits in Testing & QA. It works with Python. The repository describes itself as: Eclipse RDF4J: scalable RDF for Java. The licence is BSD-3-Clause.
3 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit fdbf6e5. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Ships 1 file in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
python3mvnFrom the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Mvnf loads about 971 tokens when it runs. Until then it costs about 70 tokens; SKILL.md has 369 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
The full file from eclipse-rdf4j/rdf4j at commit fdbf6e5, republished under its BSD-3-Clause licence (© eclipse-rdf4j). 369 words, ~971 tokens.
.claude/skills/mvnf/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.Run Maven tests with repeatable commands and useful failure pointers.
python3 .codex/skills/mvnf/scripts/mvnf.py core/sail/shaclpython3 .codex/skills/mvnf/scripts/mvnf.py ShaclSailTestpython3 .codex/skills/mvnf/scripts/mvnf.py ShaclSailTest#testSomethingpython3 .codex/skills/mvnf/scripts/mvnf.py --it ShaclSailIT#testSomethingtarget/surefire* and target/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)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.
For manual root clean installs, keep full output in maven-build.log and print only errors plus the reactor summary:
mvn -B -ntp \
-Dmaven.compiler.showWarnings=false \
-T 1C -o -Dmaven.repo.local=.m2_repo -Pquick clean install 2>&1 \
| tee maven-build.log \
| awk '
/\[WARNING\]/ { next }
/\[ERROR\]/ { print; next }
/Reactor Summary/ { summary=1 }
summary { print }
'For install without clean, replace clean install with install. For a module install, add -pl <module> -am before -Pquick. Keep the 2>&1 | tee maven-build.log | awk ... tail on every install variant.
If the test run fails, it prints the list of Surefire/Failsafe report files under the module's target/*-reports/ directories. For a handoff-ready block from retained reports, run python3 scripts/agent-evidence.py <module>/target/surefire-reports <module>/target/failsafe-reports.
--module <path>: Force the module when the test class name exists in multiple modules.--it: Treat the selector as an integration test and pass it via -Dit.test=....--no-offline: Run Maven commands without -o (useful if offline resolution fails).--stream: Stream verify output live for hang/no-progress debugging; install output is filtered to errors plus the reactor summary while the full install log is kept in maven-build.log.--tail-on-success: Print Maven output tails on successful phases too (old verbose behavior).--retain-logs: Keep verify logs on success.-- <maven args>: Append extra Maven flags/profiles to the verify command while preserving selector behavior.For LMDB theme regression/snapshot tests, enable persistent prepared stores to skip repeated dataset rebuilds:
-Drdf4j.lmdb.themeRegression.persistentStore.enabled=true-Drdf4j.lmdb.themeRegression.persistentStore.root=persistent-lmdb-theme-storePass extra Maven flags after --, for example:
python3 .codex/skills/mvnf/scripts/mvnf.py LmdbThemeQueryRegressionTest#socialMediaFiveCycleInterleavesValuesWithFollowsEdges --module core/sail/lmdb -- -Drdf4j.lmdb.themeRegression.persistentStore.enabled=true© eclipse-rdf4j, BSD-3-Clause. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 1 other file (scripts) in .agent/skills/mvnf of eclipse-rdf4j/rdf4j.
Open the folder on GitHubat commit fdbf6e5
Mvnf next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Mvnf this skilleclipse-rdf4j/rdf4j | 420 | — | ~971 | Automated safety check: Pass | BSD-3-Clause | |
| Web Application Testinganthropics/skills | 180k | 51 repos | ~966 | Automated safety check: Pass | Apache-2.0 | |
| OpenHarness End-to-End EvalsHKUDS/OpenHarness | 16k | 1 repos | ~2.1k | Automated safety check: Notes | MIT | |
| Adk Verify Snippetsgoogle/adk-python | 22k | — | ~1.4k | Automated safety check: Pass | Apache-2.0 | |
| Apple Container Test RunnerRustPython/RustPython | 22k | — | ~467 | Automated safety check: Pass | MIT | |
| JSON Repair Docs Demo Local Testmangiucugna/json_repair | 5.1k | — | ~549 | Automated safety check: Pass | MIT |
anthropics/skills
Tests local web applications with Python Playwright scripts, checking frontend behavior, capturing screenshots and reading browser console logs.
HKUDS/OpenHarness
Validates OpenHarness features by running real multi-turn agent loops with live LLM calls against an unfamiliar codebase, checking actual tool execution.
google/adk-python
Checks that every Python code block in a Markdown file actually compiles and runs, by extracting each block to a temporary file, executing it in an isolated subprocess, and writing a pass/fail…
RustPython/RustPython
Runs RustPython tests inside a Linux container built with Apple's container CLI, so macOS users can compare Linux results with their local ones.
mangiucugna/json_repair
Runs the json_repair docs demo against a local Flask API and static server, so changes to docs/app.py or the docs UI are checked end to end before publishing.
astral-sh/ruff
A skill your agent uses when a user asks to wobble ty constraint ordering, check constraint-set or TDD ordering determinism, test reversed constraint/typevar IDs, or investigate nondeterministic ty…
eclipse-rdf4j/rdf4j
Run a repeatable RDF4J performance loop against one JMH benchmark in Docker with Linux Java 26 and JFR CPU-time profiling.
eclipse-rdf4j/rdf4j
Parse JMH result text by finding the first header line that starts with Benchmark and contains Mode and Score, build a structured table for all columns/rows, compare overlapping benchmarks across 2+…
eclipse-rdf4j/rdf4j
Use QueryPlanSnapshotCli to capture and compare RDF4J query plans, then assess likely performance improvements/regressions from execution verification and semantic plan diffs.
eclipse-rdf4j/rdf4j
Debug Maven Surefire unit tests by running them in JDWP "wait for debugger" mode (-Dmaven.surefire.debug) and attaching to the forked test JVM using jdb (preferred for CLI/agent debugging)…
eclipse-rdf4j/rdf4j
Retrieve GitHub issues, pull requests, and milestones with read-only, whitelisted gh commands only.
Works with
Categories
Run Maven tests in this repo with a consistent workflow (module test-artifact cleanup, root -Pquick install to refresh .m2repo, then module verify or a single test class/method). Mvnf is an agent skill from eclipse-rdf4j/rdf4j.m2repo, then module verify or a single test class/method).
Mvnf fits situations like: asked to run tests/verify in the rdf4j multi-module build; the user says mvnf.
Run `npx skills add eclipse-rdf4j/rdf4j --skill mvnf -a claude-code`. Or copy the skill folder (.agent/skills/mvnf in eclipse-rdf4j/rdf4j) into .claude/skills/mvnf in your project. Claude Code loads it when a task matches its description.
Run `npx skills add eclipse-rdf4j/rdf4j --skill mvnf -a codex`. Or copy the skill folder (.agent/skills/mvnf in eclipse-rdf4j/rdf4j) into .agents/skills/mvnf in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add eclipse-rdf4j/rdf4j --skill mvnf -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mvnf, .gemini/skills/mvnf, .github/skills/mvnf and .opencode/skills/mvnf in your project.
Going by SKILL.md and its folder, Mvnf needs Python for the scripts in its folder and the command-line tools its instructions call (python3 and mvn). Our summary lists: Python 3.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
Mvnf is published under the BSD-3-Clause licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 971 tokens (SKILL.md is roughly 3.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Mvnf: Web Application Testing (anthropics/skills, 180k stars), OpenHarness End-to-End Evals (HKUDS/OpenHarness, 16k stars), Adk Verify Snippets (google/adk-python, 22k stars) and Apple Container Test Runner (RustPython/RustPython, 22k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
eclipse-rdf4j (a GitHub organization) maintains it in eclipse-rdf4j/rdf4j, which has 420 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on October 9, 2026.
Source: eclipse-rdf4j/rdf4j on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.