skill-posidoni-shell-skill-nushell · by Install
$ agentstack add skill-posidoni-shell-skill-nushell ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-posidoni-shell-skill-nushell) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Nushell
Nushell passes typed, structured values (records, tables, lists), not text. Depth and citations in [reference/nushell.md](../../reference/nushell.md); parse-clean fragments in [examples/nushell/](../../examples/nushell/); a runtime demo of the startup pitfall in [tests/nushell-startup-demo.sh](../../tests/nushell-startup-demo.sh).
Rules at a glance
| Rule | Why | |------|-----| | Parse the whole file, then run it | no eval; runtime cannot change what was parsed | | source/use/overlay use need a parse-time const path | resolved before any let/$env exists | | A runtime if (path exists) can't guard a source | path is resolved at parse time regardless | | Structured data, not text: get/where/select | pipelines carry typed values, no word-splitting | | Write with save, not > | > is the greater-than operator | | Prefer let; mut only to reassign; const for parse time | immutability enables parallel/streaming | | Type command params; declare in -> out signatures | checked at parse time, self-documenting | | def --env when a command must change env or cd | $env is block-scoped otherwise | | if/match are expressions; iterate with each/where | return values; far faster than for/while | | ^cmd for externals + \| complete for exit code | quote args yourself; branch on real status | | try/catch, error make, optional get -o/? + default | recover instead of aborting | | Pin/declare the target Nushell version | 0.x ships breaking changes every ~6 weeks |
Verify
task nushell runs nu --ide-check on every *.nu and fails on any parse or type error. A failing script cannot be committed, so demonstrate bad runtime behaviour in prose or a hermetic bash demo, not in a *.nu file.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: posidoni
- Source: posidoni/shell-skill
- License: MIT
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.