Skip to content

feat: add STRANDS_ANTHROPIC_BETA environment variable #34

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 2 commits into from
Jun 18, 2025
Merged

feat: add STRANDS_ANTHROPIC_BETA environment variable #34

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
c698b12
feat: add STRANDS_ANTHROPIC_BETA environment variable
awsarron Jun 18, 2025
f2ae7fb
docs(readme): document environment variables
awsarron Jun 18, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
18 changes: 18 additions & 0 deletions README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -205,6 +205,24 @@ export STRANDS_SYSTEM_PROMPT="You are a Python expert."
echo "You are a security expert." > .prompt
```

## 🌍 Environment Variables Configuration

Strands Agent Builder also provides customization through environment variables:

| Environment Variable | Description | Default |
|----------------------|-------------|---------|
| STRANDS_MODEL_ID | Claude model ID to use for inference | us.anthropic.claude-sonnet-4-20250514-v1:0 |
| STRANDS_MAX_TOKENS | Maximum tokens for agent responses | 32768 |
| STRANDS_BUDGET_TOKENS | Token budget for agent thinking/reasoning | 2048 |
| STRANDS_THINKING_TYPE | Type of thinking capability | enabled |
| STRANDS_ANTHROPIC_BETA | Anthropic beta features (comma-separated) | interleaved-thinking-2025-05-14 |
| STRANDS_CACHE_TOOLS | Tool caching strategy | default |
| STRANDS_CACHE_PROMPT | Prompt caching strategy | default |
| STRANDS_SYSTEM_PROMPT | Custom system prompt (overrides .prompt file) | None |
| STRANDS_KNOWLEDGE_BASE_ID | Default Knowledge Base ID | None |
| STRANDS_TOOL_CONSOLE_MODE | Enable rich console UI | enabled |
| BYPASS_TOOL_CONSENT | Skip tool confirmation prompts | false |

## Exit

Type `exit`, `quit`, or press `Ctrl+C`/`Ctrl+D`
Expand Down
4 changes: 3 additions & 1 deletion src/strands_agents_builder/utils/model_utils.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,6 @@
retries=dict(max_attempts=3, mode="adaptive"),
),
"additional_request_fields": {
"anthropic_beta": ["interleaved-thinking-2025-05-14"],
"thinking": {
"type": os.getenv("STRANDS_THINKING_TYPE", "enabled"),
"budget_tokens": int(os.getenv("STRANDS_BUDGET_TOKENS", "2048")),
Expand All @@ -28,6 +27,9 @@
"cache_tools": os.getenv("STRANDS_CACHE_TOOLS", "default"),
"cache_prompt": os.getenv("STRANDS_CACHE_PROMPT", "default"),
}
ANTHROPIC_BETA_FEATURES = os.getenv("STRANDS_ANTHROPIC_BETA", "interleaved-thinking-2025-05-14")
if len(ANTHROPIC_BETA_FEATURES) > 0:
DEFAULT_MODEL_CONFIG["additional_request_fields"]["anthropic_beta"] = ANTHROPIC_BETA_FEATURES.split(",")


def load_path(name: str) -> pathlib.Path:
Expand Down