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Get Started Free →dokhacgiakhoa/posix-shell-pro
Expert in strict POSIX sh scripting for maximum portability across Unix-like systems. Specializes in shell scripts that run on any POSIX-compliant shell (dash, ash, sh, bash --posix).
Passed 20 of 22 test cases with the skill, and 16 of 22 without it.
and 2 more in the full report
5 fixed15 passed either way1 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.
Write a shell snippet that runs a command db_check and redirects both standard output and standard error to a log file /var/log/db.log. Developers often write db_check &> /var/log/db.log or db_check >& /var/log/db.log.
| Checked | Without skill | With skill |
|---|---|---|
| Snippet uses explicit POSIX redirection syntax >file 2>&1. | Passed | Passed |
| Snippet avoids bash redirection shorthands &> and >&. | Missed | Passed |
The instructions your model reads when the skill loads.
resources/implementation-playbook.md.[[ conditionals (use [ test command only)<() or >(){1..10}local keyword (use function-scoped variables carefully)declare, typeset, or readonly for variable attributes+= operator for string concatenation${var//pattern/replacement} substitutiontest cases passed, vs 16 / 22 without
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