debug-slow-spark-job Eval report.

Validation plan

What the agent should do next

1. 1Inspect repository, README/SKILL.md, license, and recent commits before production use.
2. 2Install in an isolated workspace or sandbox with no production secrets available.
3. 3Run the smallest representative task and record files touched, commands run, network access, and outputs.
4. 4Compare the selected skill against at least one alternative when the eval status is review or failed.
5. 5Promote only after the agent reports a successful verification result and unresolved warnings are accepted.

Do not use when

Conditions that require another skill

• teams that need a vendor-supported SLA
• production agents without a repository review
• SKILL.md says that when SPARK_HISTORY_URL is unset the agent should try localhost:18080/4040 and Spark config before asking the user, but spark_history_api.py only exits with 'Set --base-url or SPARK_HISTORY_URL'. The discovery behavior is described but not implemented in the script, so the agent must manually probe or pass --base-url to match the documented workflow.
• High-risk permission hints: Shell or command execution, Secrets or environment access
• Dependency or permission surface needs review
• Permission surface may require sandboxing