OpenShell + Pi: build an isolated coding-agent sandbox SKILL.md skillB
OpenShell + Pi: build an isolated coding-agent sandbox from howdeploy/deploychan_mcp is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add howdeploy/deploychan_mcp/OpenShell + Pi: build an isolated coding-agent sandbox@git:20260827.baaa328Pins git:20260827.baaa328 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- howdeploy/deploychan_mcp
- Path
content/skills/openshell-pi-agent/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260827.baaa328, committed Aug 27, 2026
- Size
- 17,332 bytes
- Repository stars
- 21
- License
- MIT
Use when the user wants to install, configure, migrate, harden, inspect, or troubleshoot a Pi coding agent running in NVIDIA OpenShell, especially with rootless Podman, deny-by-default networking, hidden credentials, persistent state, or A2A communication. Do not use for ordinary containerization that does not involve an agent sandbox.
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
# OpenShell + Pi Build a useful Pi coding agent without giving the model ambient access to the host, arbitrary internet egress or real API credentials. Prefer the official Pi community sandbox first; create a custom image only when reproducibility or preinstalled tooling requires it. This workflow intentionally contains no personal system prompt, private skill, named model vendor or account-specific provider. Select those from the user's own requirements. ## Non-negotiable invariants - Inspect the current machine and installed CLI before changing anything. OpenShell is fast-moving; use `openshell <command> --help` as the local command contract. - Keep the gateway on loopback with mTLS unless the user explicitly designs a remote gateway topology. - Use a rootless compute driver when the host supports it. For Podman, require Podman 5.x, cgroups v2, rootless networking and an active user socket. - Keep `enable_bind_mounts = false`. A host bind mount can negate the filesystem boundary. - Keep `policy_validation_failure_mode = "fail_closed"`. - Put real credentials in OpenShell provider records, never in `--env`, images, …
Read the whole file at its exact version.
How to install
mdr add howdeploy/deploychan_mcp/OpenShell + Pi: build an isolated coding-agent sandbox@sha256:348c23fd3a46ac43The line at the top of this page pins the label git:20260827.baaa328, 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_47xly6twcpr5wxuc)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 27, 2026.
Audit of the latest version
- fail: No curl or wget piped into a shell (matched: curl -LsSf https://raw.githubusercontent.com/NVIDIA/OpenShell/main/install.sh | sh)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (17332 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 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
howdeploy/deploychan_mcp · 21 stars · license MIT · pushed 2026-10-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_47xly6twcpr5wxuc GET https://markdownregistry.com/api/v1/resolve?ref=howdeploy/deploychan_mcp/OpenShell + Pi: build an isolated coding-agent sandbox GET https://markdownregistry.com/api/v1/blob/348c23fd3a46ac436878c615705782ffeb0c8761dd0b0daa9fd54339744a848e
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.