feat(delegation): add opt-in context projection

[HEROISM-WQL]

Summary

• add a deterministic compiler for projecting selected parent context into delegated tasks
• keep the feature disabled by default
• pass parent messages explicitly instead of reading hidden agent state
• preserve prompt-cache stability by compiling context only at delegation boundaries
• authenticate runtime out-of-band steering via a sidecar rather than mixing it into user history
• include a reproducible spike and fixtures documenting the decision evidence

Safety and compatibility

• existing delegation behavior is unchanged when context projection is disabled
• projected context is bounded and deterministic
• role alternation and the parent conversation history are not mutated
• nested delegation remains subject to existing depth and role limits

Testing

• pytest tests/tools/test_delegate_context.py tests/tools/test_delegate.py tests/run_agent/test_run_agent.py -q
  • 611 passed
• ruff check on all changed Python and test files
  • passed

Notes

The implementation is opt-in and introduces no new always-on core tool schema.

[alt-glitch]

This was generated by AI during triage.

Related to prior delegation/profile/context work (#36663, #55066, #55286). This is a broader default-off core/delegation policy addition rather than a duplicate; maintainers should decide whether this projection belongs in the core path.

[teknium1]

Thanks for the carefully bounded, default-off implementation. The current main implementation still intentionally gives delegated children a fresh conversation and only explicit context (tools/delegate_tool.py:11, tools/delegate_tool.py:1317), so this remains a design decision rather than a duplicate fix.

Problems

• The PR adds defaults in hermes_cli/config.py, but current main moved DEFAULT_CONFIG into hermes_cli/config_defaults.py:1543 in 1fe06115d1. A salvage needs to port those defaults to the canonical block.
• tests/tools/test_delegate_context.py:207 asserts the complete generated child prompt. Please test projection invariants instead of pinning unrelated instruction wording.

Suggested changes

• Rebase the config portion onto the current config_defaults.py layout and cover the active config-loading path.
• Keep tests focused on explicit-mode isolation, role filtering, bounded deterministic projection, and task placement.

This is an automated hermes-sweeper review.

[teknium1]

This test snapshots the entire child prompt, so unrelated valid edits to the standing child instructions will fail it. Please replace the exact-string assertion with focused behavior contracts for default-mode isolation and the relevant task/context ordering.