A maintainer reviews multiple multi-agent pull requests. Match each signal to the most accurate execution state. Which mapping is correct?

1. Copilot session logs stop after planning, with no branch or PR created. This indicates the agent failed to progress beyond the initial planning stage, aligning with "Failed to progress beyond planning." 2. Build succeeds, integration fails, and release notes job is skipped. A successful build followed by an integration failure suggests the code itself compiled, but its interaction with other components failed, which is a "Partial execution after upstream validation failure." The skipped release notes job is a consequence of the integration failure. 3. Required check remains pending after a path-filtered workflow skip. A required check remaining pending even after a workflow was skipped due to path filtering means the skip itself prevented the check from ever running or completing, thus it's a "Pending required check caused by skipped workflow." 4. PR timeline shows Copilot started work, but no new log lines appear for a long period. This signifies that the agent began its task but then stopped providing updates, indicating a "Stalled agent execution needing session investigation" to determine why it halted.