I4h Catheter Navigation Smoke Agent Skill
Run CPU-only fluorosim smoke tests (imports, preprocessing, CLI parsers). Use when asked to smoke-test catheter navigation in CI or without a GPU.
Install
one command, takes just this skill from the repositorynpx skills add https://github.com/NVIDIA/skills --skill i4h-catheter-navigation-smokeWhat comes with it
17 540 bytes besides the instructionThe instruction itself
11 sections, as written by the authori4h Catheter Navigation - Smoke Tests
Purpose
Run CPU-only unit smoke tests for fluorosim components and entrypoint parsers,
safe for CI without a GPU. Exercises imports, CT->mu preprocessing, parser
sanity, and conditional viewport import checks.
Base Code
ROOT="${I4H_WORKFLOWS:-$(git rev-parse --show-toplevel 2>/dev/null)}"
if [ ! -d "$ROOT/workflows/catheter_navigation" ]; then
ROOT="${I4H_WORKFLOWS:-$HOME/i4h-workflows}"
[ -d "$ROOT/workflows/catheter_navigation" ] || git clone https://github.com/isaac-for-healthcare/i4h-workflows "$ROOT"
fi
export I4H_WORKFLOWS="$ROOT"; cd "$ROOT"
Run
Step 1 - run tests
REPO_ROOT="${I4H_WORKFLOWS:-$(git rev-parse --show-toplevel 2>/dev/null)}"; [ -d "$REPO_ROOT/workflows/catheter_navigation" ] || REPO_ROOT="$HOME/i4h-workflows"
WF_ROOT="${REPO_ROOT}/workflows/catheter_navigation"
RUN_DIR="${WF_ROOT}/runs/smoke_$(date +%Y%m%d_%H%M%S)"
mkdir -p "${RUN_DIR}/logs"
ln -sfn "${RUN_DIR}" "${WF_ROOT}/runs/.latest"
python3 -m unittest workflows/catheter_navigation/tests/test_fluorosim_smoke.py \
2>&1 | tee "${RUN_DIR}/logs/smoke.log"
Expected Output
Ran N tests in ...s
OK
Parser error lines on stderr from negative CLI tests are expected - not failures.
Verify
grep -E "Ran [0-9]+ tests" "${RUN_DIR}/logs/smoke.log"
grep "OK" "${RUN_DIR}/logs/smoke.log"
Prerequisites
- Python 3 with workflow dependencies installed (for example via
workflows/catheter_navigation/requirements.txt).
- No GPU required.
Limitations
- Does not exercise GPU Slang rendering or the interactive viewport.
- For GPU validation, use [[i4h-catheter-navigation-render-drr]].
Troubleshooting
- Error: import failures - Fix: run [[i4h-catheter-navigation-setup]] and
ensure the active venv has catheter workflow dependencies installed.
- Error: unexpected test count - Fix: inspect log; this can change when smoke
coverage is added/removed on a branch.
Final Response
Report pass/fail, test count, and log path. If passed, note GPU stages still need separate verification.
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How to use it
Take nvidia/i4h-catheter-navigation-smoke from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
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same name cannot sit side by side — one of them will be ignored.