agent-development SKILL.md skillA
agent-development from nebius/nebius-physical-ai is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nebius/nebius-physical-ai/agent-development@git:20261003.bd54c8cPins git:20261003.bd54c8c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nebius/nebius-physical-ai
- Path
skills/atomic/agent-development/SKILL.md- Versions recorded
- 8
- Latest version
- git:20261003.bd54c8c, committed Oct 3, 2026
- First version recorded
- Jul 23, 2026
- Size
- 23,030 bytes
- Repository stars
- 45
- License
- Apache-2.0
Use when building, enhancing, or testing the NPA chat agent backend — grounded-first routing, cost-aware Token Factory model selection, the embedded-backend mechanism, and cheap-token test tiers.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Agent Development (cheap-token chat backend) How to *develop* the NPA agent chat backend. For *operating* a deployed agent (deploy/bootstrap/verify, chat UX, API grounding, Rerun) use `skills/tools/npa-agent/SKILL.md`; for fresh deploy/teardown loops use `skills/workflows/agent-fresh-operate/SKILL.md`. Guiding principle: **the cheapest token is the one you never spend.** Protect and widen the zero-token grounded path; make the unavoidable model calls small, structured, and cheap-model-first. ## Architecture (three layers) 1. **Grounded intent router (zero tokens)** — `npa/src/npa/cli/agent_chat.py`. `match_chat_intent()` classifies a turn; `build_grounded_reply()` answers from live session state with **no model call** (`"grounded": true`). Most operator turns end here. 2. **Cost-tier routing (cheap model calls)** — `npa/src/npa/cli/agent_routing.py`. Only turns that fall through the router reach Token Factory, and this layer keeps them cheap. 3. **Token Factory client** — `npa/src/npa/clients/token_factory.py` (operator/SDK path) and the embedded `_provider_chat` / `_chat_with_resilience` in `npa/src/npa/cli/agent.py` (agent-VM path). …
Read the whole file at its exact version.
How to install
mdr add nebius/nebius-physical-ai/agent-development@sha256:1363fe90f5c8c029The line at the top of this page pins the label git:20261003.bd54c8c, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_uwheqxj3ypz5c4xo)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 8 versions of this file, between Jul 23, 2026 and Oct 3, 2026, about one every 10 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261003.bd54c8c latest | 2026-10-03 | bd54c8c | 23,030 B | A | view · diff |
| git:20260907.402138a | 2026-09-07 | 402138a | 22,251 B | A | view · diff |
| git:20260906.2f687b4 | 2026-09-06 | 2f687b4 | 22,239 B | A | view · diff |
| git:20260906.4539e93 | 2026-09-06 | 4539e93 | 16,336 B | A | view · diff |
| git:20260829.7c551f6 | 2026-08-29 | 7c551f6 | 15,284 B | A | view · diff |
| git:20260812.d36a8f9 | 2026-08-12 | d36a8f9 | 12,619 B | A | view · diff |
| git:20260724.36ce183 | 2026-07-24 | 36ce183 | 12,600 B | A | view · diff |
| git:20260723.0496953 | 2026-07-23 | 0496953 | 10,014 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (23030 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
nebius/nebius-physical-ai · 45 stars · license Apache-2.0 · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uwheqxj3ypz5c4xo GET https://markdownregistry.com/api/v1/resolve?ref=nebius/nebius-physical-ai/agent-development GET https://markdownregistry.com/api/v1/blob/1363fe90f5c8c02963b96ff9a86a9ed9435c8a33c79d3bf07d9e19ba0e4808c6
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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