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f43aa78107
* fix(agents): sync agent_name across context/configurable and reject empty soul (#3549) Two independent issues caused custom agent creation to silently fail: 1. build_run_config only wrote agent_name into one container (configurable or context), so setup_agent — which reads ToolRuntime.context exclusively since LangGraph >=1.1.9 — saw agent_name=None and wrote SOUL.md to the global base_dir instead of users/{user_id}/agents/{name}/. Mirror the dual-write pattern already used by merge_run_context_overrides and naming.py so both containers always carry the same value. 2. setup_agent persisted whatever soul string it received, including empty or whitespace-only content, and still reported success. The frontend then surfaced an unusable agent and the global default SOUL.md could be silently overwritten with empty content. Reject empty soul before any filesystem operation so the model can retry. Tests: - test_gateway_services.py: dual-write regressions for both configurable and context entry paths, explicit-agent-name precedence on both sides, and a shape-parity test against merge_run_context_overrides. - test_setup_agent_tool.py: empty/whitespace soul rejection, plus no-overwrite guarantees for existing global and per-agent SOUL.md. * Update services.py