The body is mostly code-first and free of concept fluff, but sections like Advantages/Disadvantages and a questionable timeout claim ('60s default vs 30s') add explanation that could be tightened.

It provides fully executable, copy-paste heredoc examples plus concrete syntax rules and a troubleshooting table, leaving no ambiguity about how to apply the pattern.

As a single-action fallback it gives clear 'When to Use' decision guidance and recovery-oriented troubleshooting; the simple-task scoring note allows a 3 without an explicit validate-retry loop.

No bundle files exist and none are needed; the self-contained body is organized into clear, well-labeled sections, which satisfies progressive disclosure for a short single-purpose skill.

It names one concrete action ('Execute complex Python code via run_shell heredoc') and a failure trigger, but does not enumerate multiple distinct actions, matching 'Names domain and some actions, but not comprehensive'.

It states both what it does ('Execute complex Python code via run_shell heredoc') and when to use it ('when execute_code_sandbox fails'), giving explicit trigger guidance.

Keywords like 'run_shell', 'heredoc', and 'execute_code_sandbox' are internal tool names rather than phrases a user would naturally say, so it has relevant but jargon-heavy coverage missing common variations.

The niche is narrow and tied to a specific tool failure condition, making it unlikely to trigger for unrelated skills.