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AWS nova documentation change

Service: nova · 2026-02-19 · Documentation low

File: nova/latest/nova2-userguide/nova-hp-rft-forge.md

Summary

Replaced detailed BYOO setup and configuration documentation with a reference to confidential documentation and an S3 download command. Removed technical specifications for rollout requests, recipe configurations, and environment setup.

Security assessment

The change removes technical implementation details but shows no evidence of addressing a specific vulnerability. While restricting documentation access might limit information exposure, there's no mention of patching exploits, fixing weaknesses, or responding to security incidents. The primary impact is operational simplification rather than security enhancement.

Diff

diff --git a/nova/latest/nova2-userguide/nova-hp-rft-forge.md b/nova/latest/nova2-userguide/nova-hp-rft-forge.md
index 9eeaa1f6e..1ded359d1 100644
--- a//nova/latest/nova2-userguide/nova-hp-rft-forge.md
+++ b//nova/latest/nova2-userguide/nova-hp-rft-forge.md
@@ -23,9 +23 @@ For Forge users requiring multi-turn conversations or reward functions exceeding
-  * BYOO setup
-
-  * Data preparation for custom RL environments
-
-  * BYOO recipe configuration
-
-  * BYOO request and response formats
-
-  * BYOO environment
+  * Setup and execution
@@ -83,252 +75 @@ The BYOO architecture provides full control over the rollout and generation proc
-### BYOO setup
-
-**Prerequisites:**
-
-  * Install SAM CLI: [Amazon Web Services Serverless Application Model (AWS SAM) documentation](https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/install-sam-cli.html)
-
-  * Get SAM code from NovaRFTBundles repository: `NovaRFTEnvBundles/trees/mainline/—/lambda_proxy#`
-
-
-
-
-**Deployment steps:**
-
-Deploy this for every new environment you are running in parallel. Three Lambda functions and four SQS queues will be created using this code. The deployment corresponds to the middle portion of the architecture diagram, to enable communication between the training cluster and the client.
-    
-    
-    sam build
-    sam deploy --guided \
-      --stack-name <Your Stack Name> \
-      --capabilities CAPABILITY_IAM \
-      --parameter-overrides ProjectName=<your-project-name>
-
-### Data preparation for custom RL environments
-
-###### Important
-
-Custom RL environments with BYOO are configured during **training** using the `rollout.delegate: true` setting and BYOO infrastructure parameters. The `rl_env` field mentioned in some examples is only used during **evaluation** to specify how to evaluate the trained model, not during training itself.
-
-For use cases requiring custom RL environments or agents, the `messages` and `tools` fields are optional. Use this format to build your dataset:
-    
-    
-    {
-      "id": "wordle_001",
-      "messages": [],
-      "tools": [],
-      "metadata": {
-        "answer": "crane",
-        "problem": "Guess: crane"
-      }
-    }
-
-The metadata will be passed as-is in the rollout request. For more details, refer to the Rollout Request documentation.
-
-### BYOO recipe configuration
-
-###### Note
-
-Remote reward functions in your own Amazon Web Services environment do **not** use the `rl_env` field. Instead, they use `rollout.delegate: true` to hand off orchestration to your custom infrastructure. The `rl_env` field is only used during evaluation to specify how to evaluate the trained model. Note that `data_s3_path` is mandatory, and corresponds to the initial prompts that will be used to start the conversation between the Nova model and the environment.
-
-The `max_seq_length` includes the full context length the model is expected to get during the multi-turn conversation. The number of tokens builds up quickly with each turn, and should be set taking into consideration the response length.
-
-Similarly, the `rollout.timeout` is the maximum time in seconds the entire conversation between the trainer and environment is expected to take. A timeout will result in training failure.
-
-The recipe is designed for high throughput communication between the trainer and environment. By design, the training cluster will create many requests to the environment in parallel, and the BYOO environment should be designed to handle such requests.
-    
-    
-    run:
-      name: <run-name>
-      model_type: amazon.nova-2-lite-v1:0:256k
-      model_name_or_path: nova-lite-2/prod
-      data_s3_path: s3://<bucket-name>/train.jsonl # required
-      output_s3_path: s3://path/to/output/checkpoint
-      replicas: 4
-      generation_replicas: 2
-      rollout_worker_replicas: 1
-      rollout_request_arn: <rollout-proxy-lambda-arn>
-      rollout_response_sqs_url: <rollout-response-queue-url>
-      generate_request_sqs_url: <generate-request-queue-url>
-      generate_response_sqs_url: <generate-response-queue-url>
-    
-    training_config:
-      max_steps: 100
-      max_seq_length: 9392
-      global_batch_size: 1024
-      reasoning_effort: high                               # Options: low, high, or omit for no reasoning
-      
-      data:                                 # Or multi-turn for multi-turn conversations
-        shuffle: false
-      
-      rollout:
-        delegate: true                                     # Enables BYOO mode
-        timeout: 600                                       # 10 minutes timeout for rollout completion
-        rollout_strategy:
-          type: off_policy_async
-          age_tolerance: 2
-        advantage_strategy:
-          number_generation: 16
-        generator:
-          server_count: ${run.generation_replicas}
-          timeout: 1000
-          max_model_len: ${training_config.max_seq_length}
-          max_new_tokens: 18000
-          set_random_seed: true
-          temperature: 1
-          top_k: 0
-      
-      train:
-        replicas: ${run.replicas}
-        max_steps: ${training_config.max_steps}
-        global_batch_size: ${training_config.global_batch_size}
-        save_steps: 10
-        save_top_k: 5
-        
-        # RL parameters [Advanced]
-        clip_ratio_high: 0.2
-        ent_coeff: 0.001
-        loss_scale: 1
-        
-        # Optimizer settings
-        optim:
-          lr: 1e-7
-          optimizer: 'adam'
-          weight_decay: 0.01
-          adam_beta1: 0.9
-          adam_beta2: 0.95
-          warmup_steps: 5
-          min_lr: 1e-5
-
-Launch the recipe with the `hyperpod start-job` command similar to other HyperPod recipes. Run the BYOO environment in parallel, details of which are given below.
-
-### BYOO request and response formats
-
-**Rollout request:**
-
-Sent from training infrastructure to your Proxy Lambda:
-    
-    
-    {
-      "version": "v0",
-      "timestamp": "2025-10-28T...",
-      "sample_id": "sample-000_0",
-      "max_length": 10240,
-      "rewards": {
-        "range": [0.0, 1.0]
-      },
-      "data": {
-        "problem": "How many six-digit numbers are there in which all digits are odd? Let's think step by step and output the final answer within \\boxed{}.",
-        "answer": "15625"
-      }
-    }
-
-**Generate request:**
-
-Sent from your orchestration logic to request model generation:
-    
-    
-    {
-      "version": "v0",
-      "sample_id": "sample-000_0",
-      "step_id": "sample-000_0_0",
-      "messages": [
-        {
-          "role": "user",
-          "content": "How many six-digit numbers are there in which all digits are odd? Let's think step by step and output the final answer within \\boxed{}."
-        }
-      ]
-    }
-
-**Generate response:**
-
-Returned from model generation service:
-    
-    
-    {
-      "version": "v0",
-      "sample_id": "sample-000_0",
-      "step_id": "sample-000_0_0",
-      "data": {
-        "choices": [{
-          "message": {
-            "content": "To determine how many six-digit numbers..."
-          },
-          "finish_reason": "stop",
-          "logprobs": {
-            "content": [
-              {"token": "token_id:123", "logprob": -0.5}
-            ]
-          }
-        }],
-        "serving_model_num": 0
-      },
-      "finish_reason": "stop"
-    }
-