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# Nsight Graphics CLI Skill

name: "cli-anything-nsight-graphics"
description: Windows-first CLI harness for Nsight Graphics capture, GPU Trace summary, and ngfx-replay analysis
version: 0.2.0
command: cli-anything-nsight-graphics
install: pip install cli-anything-nsight-graphics
requires:

- NVIDIA Nsight Graphics installation
- Windows host recommended

categories:

- graphics
- debugging
- gpu
- profiling

# Nsight Graphics CLI Skill#

Command-line orchestration of official NVIDIA Nsight Graphics activities.

## Capabilities#

- Probe installed Nsight binaries and compatibility mode
- Launch an application detached under Nsight
- Attach Nsight to a running PID
- Trigger Graphics Capture or OpenGL Frame Debugger capture
- Trigger GPU Trace capture, auto-export, and summarize
- Analyze existing `.ngfx-capture` files through `ngfx-replay`
- Report clear compatibility diagnostics for `.ngfx-gputrace` inputs
- Trigger Generate C++ Capture

## Commands#

### doctor#

    cli-anything-nsight-graphics --json doctor info
    cli-anything-nsight-graphics --json doctor versions
    cli-anything-nsight-graphics --nsight-path "C:\Path\To\Nsight Graphics 2024.2\host\windows-desktop-nomad-x64" --json doctor info

### launch#

    cli-anything-nsight-graphics launch detached --activity "Graphics Capture" --exe "C:\Path\To\App.exe"
    cli-anything-nsight-graphics launch attach --activity "Graphics Capture" --pid 12345

### frame capture#

    cli-anything-nsight-graphics --output-dir D:\captures frame capture ^
      --exe "C:\Path\To\App.exe" ^
      --wait-frames 10

### GPU Trace#

    cli-anything-nsight-graphics --output-dir D:\traces gpu-trace capture ^
      --exe "C:\Path\To\App.exe" ^
      --start-after-ms 1000 ^
      --limit-to-frames 1 ^
      --auto-export ^
      --summarize

    cli-anything-nsight-graphics gpu-trace summarize ^
      --input-dir D:\traces

### Replay analysis#

    cli-anything-nsight-graphics --json replay analyze ^
      --capture-file D:\captures\frame.ngfx-capture ^
      --output-dir D:\analysis

### Generate C++ Capture#

    cli-anything-nsight-graphics --output-dir D:\cpp cpp capture ^
      --exe "C:\Path\To\App.exe" ^
      --wait-seconds 5

## Agent Notes#

- Prefer `doctor info` first to discover the available compatibility mode.
- Use `doctor versions` to list detected installs when multiple Nsight Graphics versions exist.
- Use `--nsight-path` to force a specific install directory or `ngfx.exe`.
- Use `--json` for programmatic workflows.
- Prefer `gpu-trace capture --auto-export --summarize` for one-step performance

triage. The summary includes exported table inventory, metric inventory,
frame-budget classification, workload classification, throughput ranking,
bottleneck hints, and warnings for empty event/regime tables.

- Use `replay analyze` when the input is an existing `.ngfx-capture` file. With

no analysis switches it exports metadata, logs, captured log errors, and a
replay performance report, then adds structured `analysis.highlights` /
`analysis.warnings`.

- `ngfx-replay` documents its input as a Graphics Capture file. `.ngfx-gputrace`

inputs are accepted for clear diagnostics, but on Nsight Graphics 2026.1.0
they may report `Invalid file header`; use `gpu-trace summarize` for exported
GPU Trace table analysis.

- `replay analyze` uses official `ngfx-replay` metadata/log/screenshot/perf-report

outputs; it is not a RenderDoc-style shader, pipeline, texture, or resource inspector.

- Frame/GPU/C++ capture commands require a launch target through `--exe` or a

preconfigured root-level `--project`.

- If a global `cli-anything-nsight-graphics` command points at an old worktree,

reinstall from `nsight-graphics/agent-harness` with `python -m pip install -e .`.