this derivation will be built:
  /nix/store/2kjk8b7li785ypvmr0ihd5nyzhlqis6b-treefmt-check.drv
building '/nix/store/2kjk8b7li785ypvmr0ihd5nyzhlqis6b-treefmt-check.drv'
treefmt-check> tribuchet: building on eliza
treefmt-check> treefmt v2.5.0traversed 1250 files
treefmt-check> emitted 538 files for processing
treefmt-check> formatted 538 files (3 changed) in 3.877s
treefmt-check>  M home/.pi/agent/extensions/_shell.ts
treefmt-check> diff --git a/home/.pi/agent/extensions/_shell.ts b/home/.pi/agent/extensions/_shell.ts
treefmt-check> index 2dd783d..01cae89 100644
treefmt-check> --- a/home/.pi/agent/extensions/_shell.ts
treefmt-check> +++ b/home/.pi/agent/extensions/_shell.ts
treefmt-check> @@ -15,8 +15,25 @@ export type Token =
treefmt-check>  
treefmt-check>  // Multi-char operators first so e.g. "&&" is not split into "&" "&".
treefmt-check>  const OPERATORS = [
treefmt-check> -  "<<<", "<<-", "<<", ">>", "&&", "||", ";;", "|&", "&>", ">&", "<&",
treefmt-check> -  "|", "&", ";", "(", ")", "<", ">", "\n",
treefmt-check> +  "<<<",
treefmt-check> +  "<<-",
treefmt-check> +  "<<",
treefmt-check> +  ">>",
treefmt-check> +  "&&",
treefmt-check> +  "||",
treefmt-check> +  ";;",
treefmt-check> +  "|&",
treefmt-check> +  "&>",
treefmt-check> +  ">&",
treefmt-check> +  "<&",
treefmt-check> +  "|",
treefmt-check> +  "&",
treefmt-check> +  ";",
treefmt-check> +  "(",
treefmt-check> +  ")",
treefmt-check> +  "<",
treefmt-check> +  ">",
treefmt-check> +  "\n",
treefmt-check>  ];
treefmt-check>  
treefmt-check>  // Redirects do not end a simple command; the word after them is a target
error: Cannot build '/nix/store/2kjk8b7li785ypvmr0ihd5nyzhlqis6b-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/m79awj349w67nrnlalmfqxrk11xc2p48-treefmt-check
       Last 25 log lines:
       >  const OPERATORS = [
       > -  "<<<", "<<-", "<<", ">>", "&&", "||", ";;", "|&", "&>", ">&", "<&",
       > -  "|", "&", ";", "(", ")", "<", ">", "\n",
       > +  "<<<",
       > +  "<<-",
       > +  "<<",
       > +  ">>",
       > +  "&&",
       > +  "||",
       > +  ";;",
       > +  "|&",
       > +  "&>",
       > +  ">&",
       > +  "<&",
       > +  "|",
       > +  "&",
       > +  ";",
       > +  "(",
       > +  ")",
       > +  "<",
       > +  ">",
       > +  "\n",
       >  ];
       >
       >  // Redirects do not end a simple command; the word after them is a target
       For full logs, run:
         nix log /nix/store/2kjk8b7li785ypvmr0ihd5nyzhlqis6b-treefmt-check.drv