Proposal: Add a static-plan execution mode to Bedrock Agents for reproducible workflows

[yuer-dsl]

Hi team,

While experimenting with Bedrock Agents, I noticed that the current Agent Planner can produce different execution sequences for the same input, which is expected with LLM-driven reasoning.

But for enterprise workloads (finance, legal, compliance), many teams require:

deterministic behavior

reproducible workflows

auditable step sequences

protection against semantic drift in long tasks

So I built a small drop-in POC that replaces the dynamic planning loop with a YAML-defined static plan + a deterministic step runner.
It does not modify Bedrock itself — only supplements the current planner with an optional “compiled plan” mode.

Repo:
https://github.com/yuer-dsl/bedrock-deterministic-planner-poc

What the POC demonstrates

YAML-based “compiled plan” (static execution graph)

No re-planning after execution begins

Identical behavior on repeated runs

Easy to audit or log for regulated industries

Keeps the original Bedrock flow intact (minimal surface area)

Why this matters

A static-mode option could help Bedrock Agents serve:

finance & banking workflows

insurance & compliance

large enterprise approval chains

reproducible research pipelines

Question

Would the team be open to exploring an optional deterministic execution mode in Bedrock Agents?
Happy to iterate or provide a more detailed minimal POC if helpful.

Thanks for the great work — Bedrock is becoming an important part of many workflows.