Prevent agents from sleeping during long tasks

[sarthakkondawar2007]

Summary

Fixes #59

• Prevent Codex from choosing sleep during long-running work.
• Add a Claude Bash(sleep:*) deny rule.
• Add a Claude PreToolUse hook that blocks sleep commands with an explanatory message.
• Preserve existing Claude hooks instead of overwriting them.
• Add test coverage for hook merging and sleep prevention.
• Ran harness configure-agents on macOS.

Testing

• python -m pytest -q harness/tests/test_cli.py -k configure_agents
• Full test suite: 244 passed, with 5 existing failures unrelated to this change.

[rxdt]

Thank you, @sarthakkondawar2007, for this strong contribution! PR #67 adds sleep prevention for both Codex and Claude, gives Claude a helpful hook message, preserves existing hooks, and adds coverage for hook merging and sleep blocking. This addresses issue #59. The implementation is practical and thoughtful—your testing and attention to existing user configuration make this especially valuable. Great work!

[sarthakkondawar2007]

Thank you, @sarthakkondawar2007, for this strong contribution! PR #67 adds sleep prevention for both Codex and Claude, gives Claude a helpful hook message, preserves existing hooks, and adds coverage for hook merging and sleep blocking. This addresses issue #59. The implementation is practical and thoughtful—your testing and attention to existing user configuration make this especially valuable. Great work!

Thank you! I would love to work with you further 👍
Again thanks.