Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/nebari-dev/pi-coding-agent-pack/jhub-deploynpx skills add nebari-dev/pi-coding-agent-pack --skill jhub-deploygit clone --depth 1 https://github.com/nebari-dev/pi-coding-agent-packWhat 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 | $0.00037 | $0.03706 |
| Opus 5 | $0.00018 | $0.01853 |
| Sonnet 5 | $0.00007 | $0.00741 |
| Haiku 4.5 | $0.00004 | $0.00371 |
Grade A, and why
jhub-deploy scanned grade A with 1 finding 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 2d ago.
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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -fsS -H "Authorization: token $API_TOKEN" \ How it starts
The opening of the file, as written. The whole thing — 438 lines — stays where its author put it; the contents beside it link to each section on GitHub.
JHub Arbitrary Deploy Skill
Use this skill when the user wants agents to:
- build arbitrary frontend/backend apps,
- deploy them through JupyterHub,
- manage lifecycle (status/stop/delete) via Hub API directly,
- avoid framework-specific preference and avoid mandatory image push.
This skill piggybacks on JupyterHub named servers.
1) Preconditions
Resolve Hub API context from runtime:
API_URL="${NEBARI_HUB_API_URL:-${JUPYTERHUB_API_URL:-}}"
API_TOKEN="${NEBARI_HUB_API_TOKEN:-${JUPYTERHUB_API_TOKEN:-}}"
HUB_USER="${JUPYTERHUB_USER:-${NB_USER:-}}"
[ -n "$API_URL" ] || echo "Missing API_URL"
[ -n "$API_TOKEN" ] || echo "Missing API_TOKEN"
[ -n "$HUB_USER" ] || echo "Missing HUB_USER"
Validate token can read own user:
curl -fsS -H "Authorization: token $API_TOKEN" \
"$API_URL/users/$HUB_USER?include_stopped_servers=true" >/dev/null
If this fails, stop and report missing scopes/credentials.
1.1) Runtime dependency preflight (MUST run)
Before selecting command/image strategy, verify required runtime dependencies for the target app.
Examples:
- shell-out binaries (
pdftotext,ffmpeg, etc.) - language runtimes/toolchains
- expected package managers/build tools
If required binaries are missing in target image/runtime:
- either switch to image mode,
- or include bootstrap installation/fallback logic explicitly,
- or fail fast with clear remediation.
2) Deployment modes (default = no image push)
A) Source-on-home mode (conditional, not assumed)
- Build/install app on user home/workspace (
/home/jovyan/...) - Spawn named server to run command from that path
- No image push required
Critical rule: use source-on-home mode only if shared storage between build context and target named server is confirmed.
B) Bootstrap-on-target mode (safe default when storage is uncertain)
- Treat target named server as isolated storage
- Build/write artifacts inside target server startup flow
- Prefer Python bootstrap wrapper that prepares files then
execs runtime
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.
- 2d ago First seen · 438 lines · 37 tokens per session scan A 3bf7cee42abc
jhub-deploy is a skill published in the GitHub repository nebari-dev/pi-coding-agent-pack (2 stars, last pushed 7d ago), licensed Apache-2.0. It adds 37 tokens to every session and 3,706 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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