[DTrace-devel] [PATCH] llm: fix newline escape in the SKILL.md script skeleton

[Kris Van Hees]

Thanks!

Reviewed-by: Kris Van Hees <kris.van.hees at oracle.com>

On Fri, Aug 07, 2026 at 10:33:49AM +0800, Zhan Xusheng wrote:
> The skeleton's BEGIN and ERROR clauses use "\\n" where "\n" is meant.
> In a D string literal that is an escaped backslash followed by 'n', so
> printf() emits a stray backslash instead of a newline.
> 
> Agents copy the skeleton verbatim, and "\\n" is a valid literal, so the
> 'dtrace -e' check prescribed in the same file does not catch it.
> 
> Every other D snippet in the tree uses a single backslash.
> 
> Assisted-by: Kiro:claude-opus-4.8
> Signed-off-by: Zhan Xusheng <zhanxusheng at xiaomi.com>
> ---
> Not tested under DTrace; this is purely a string-literal escape.
> Applies to devel (30c9c22).
> 
> One thing I left alone: the skeleton's ERROR clause prints probeprov/
> probemod/probefunc/probename, but those describe the probe that is
> currently firing, which inside an ERROR clause is dtrace:::ERROR itself
> rather than the probe that faulted.
> doc/userguide/reference/dtrace_providers_dtrace.md gives the culprit as
> arg1 (its EPID) and the fault type as arg4, and
> examples/language_features/001intro-ERROR-probe.d sidesteps this by
> printing a static message.  Should the skeleton use arg1/arg4?
> 
> Also minor: the "Target one process" pattern needs -p PID or -c CMD,
> which the suggested "sudo dtrace -s script.d" does not provide.
> 
>  llm/SKILL.md | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/llm/SKILL.md b/llm/SKILL.md
> index e5e2f3e..a6ff502 100644
> --- a/llm/SKILL.md
> +++ b/llm/SKILL.md
> @@ -66,7 +66,7 @@ probe-descriptions
>  
>  dtrace:::BEGIN
>  {
> -    printf("Tracing started...\\n");
> +    printf("Tracing started...\n");
>  }
>  
>  /* tracing clauses */
> @@ -78,7 +78,7 @@ dtrace:::END
>  
>  dtrace:::ERROR
>  {
> -    printf("DTrace error at %s:%s:%s:%s\\n", probeprov, probemod, probefunc, probename);
> +    printf("DTrace error at %s:%s:%s:%s\n", probeprov, probemod, probefunc, probename);
>  }
>  ```
>  
> -- 
> 2.43.0
>