Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/nebius/nebius-physical-ainpx agentmods add skills/nebius/nebius-physical-ai/author-npa-workflowWrote 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/nebius/nebius-physical-ai/author-npa-workflow)<a href="https://agentmods.dev/skills/nebius/nebius-physical-ai/author-npa-workflow"><img src="https://agentmods.dev/badge/skills/nebius/nebius-physical-ai/author-npa-workflow/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/nebius/nebius-physical-ai/author-npa-workflow"><img src="https://agentmods.dev/badge/skills/nebius/nebius-physical-ai/author-npa-workflow.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 | $0.00046 | $0.02848 |
| Opus 5 | $0.00023 | $0.01424 |
| Sonnet 5 | $0.00009 | $0.00570 |
| Haiku 4.5 | $0.00005 | $0.00285 |
Grade A, and why
author-npa-workflow 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 yesterday.
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 — 212 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Author NPA Workflow
When To Use
Load when creating or editing NPA workflow YAML under
workflows/, wiring tool stages, loops, or
transitions, or when helping agents/users convert SkyPilot bash pipelines into
specs.
Keep workflows/main/ limited to sim2real.yaml, paidf-cosmos3.yaml, and
nurec-reconstruct.yaml.
Add all other catalog specs under workflows/testing/; keep catalog
documentation in workflows/README.md.
For new creative pipelines, also load skills/workflows/generate-npa-workflow/SKILL.md.
Spec Contract
- Guide:
docs/workbench/npa-workflow-guide.md(canonical examples + verify commands). - Catalog:
docs/workbench/npa-workflow-tool-catalog.md+npa/src/npa/orchestration/npa_workflow/catalog.py. - apiVersion:
npa.workflow/v0.0.1only (beta). - kind:
Workflow - States: declarative nodes with
run(shell/argv),toolRef,sequence, orparallel. - Tokens:
{{config.key}},{{run.id}},{{run.prefix}},{{state.NAME.uri}}— no Jinja, no eval. - Predicates: closed set:
promote_checkpoint,loop_back. - Loops:
loop.max: "{{config.attr}}"or integer;loop.untilfor dynamic exit. - Parallel:
parallel: [<leaf members>]+ optionalmaxConcurrency; the group'snextstate is the barrier. Members may not declarenext/transitions. Use optionalparallelCount: "{{config.count}}"when a public config count must exactly equal the explicit member list; override validation then fails before plan, rendering, or submission instead of silently under-fanning out. - Params:
params: {k: v}is a per-state config overlay — how sweep members share onetoolRefand still differ. - Trigger:
trigger: {uri, pollSeconds, maxPolls, minObjects}makes the runtime driver wait for data before that state runs (the state must also do work). Numeric config expressions are resolved again after--varoverrides;pollSecondsandminObjectsmust be positive, whilemaxPolls: 0retains the supported unbounded setting. Exercise the submitted configuration through the actual watcher when validating overrides: check observed object counts and polling behavior as well as successful spec parsing. - Decision states:
writesDecision: truewhen the state writesconfig.decision_uri. - needs: ordering hints only (validated acyclic; not enforced at runtime).
- I/O:
inputs/outputswithuri+ optionalschema.
What ships with it
1 file 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.
- yesterday Changed · +1 lines 3be89b03cad0
- 3d ago Changed · +12 lines 346a15a635e8
- 4d ago Changed · +40 lines 3642fb2d8638
- 8d ago First seen · 159 lines · 46 tokens per session scan A cc653a6cd2d3
author-npa-workflow is a skill published in the GitHub repository nebius/nebius-physical-ai (29 stars, last pushed today), licensed Apache-2.0. It adds 46 tokens to every session and 2,848 once invoked, about $0.0002 per session on Opus 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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