terminal-command-safety skillA
terminal-command-safety is agent-read markdown (skill) from fabioc-aloha/alex_skill_mall: Safe terminal command patterns — backtick escaping, output capture, and hang prevention.
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Terminal Command Safety Detailed patterns and examples for safe terminal command execution in AI agent contexts. ## Decision Table | Content Type | Safe Approach | Why | |--------------|---------------|-----| | Contains backticks | Use temp file | Backticks break in all shells | | Multi-line text | Use temp file | Heredocs can desync terminal | | Both quote types | Use temp file | Can't escape both cleanly | | Dollar signs (`$`) | Single-quoted heredoc or temp file | Prevents interpolation | | Plain text only | Inline is safe | No shell metacharacters | | Long-running (>15s) | `mode=async` | Prevents timeout | | Interactive prompt | Pre-answer with flags | `--yes`, `--no-edit` | | Needs full output | Redirect to file, then read | Output can be truncated | ## Backtick Hazard — Details Backticks in terminal command arguments break across all shells: - **bash/zsh**: backtick = command substitution (`echo "use`ls`here"` executes `ls`) - **PowerShell**: backtick = escape character (`echo "use`n here"` inserts newline) **Ref**: [vscode#295620](https://github.com/microsoft/vscode/issues/295620) ### Safe Pattern (bash) ```bash …
Read the whole file at its exact version.
How to install
mdr add fabioc-aloha/alex_skill_mall/terminal-command-safety@git:20260728.80a7ab6mdr add fabioc-aloha/alex_skill_mall/terminal-command-safety@sha256:e635ac02c3431e09Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_2c7th4ozn625crad)
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Versions
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 (3257 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
fabioc-aloha/alex_skill_mall · 4 stars · license MIT · pushed 2026-09-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2c7th4ozn625crad GET https://markdownregistry.com/api/v1/resolve?ref=fabioc-aloha/alex_skill_mall/terminal-command-safety GET https://markdownregistry.com/api/v1/blob/e635ac02c3431e09f7b1fc02c0fac047caa683787b264f71a275493eafc6f486
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