Sigil Python Framework Module: Strands Agents

sigil-sdk-strands provides a Strands HookProvider bridge that maps agent, model, and tool lifecycle events into Sigil generation and tool recording.

Installation

pip install sigil-sdk sigil-sdk-strands
pip install strands-agents

Quickstart

from sigil_sdk import Client
from sigil_sdk_strands import with_sigil_strands_hooks
from strands import Agent

client = Client()
agent_config = with_sigil_strands_hooks(
    {"name": "support-agent"},
    client=client,
    provider_resolver="auto",
)

agent = Agent(**agent_config)
agent(
    "Explain what LLM observability is in one sentence.",
    invocation_state={"conversation_id": "demo-strands"},
)

client.shutdown()

Existing Agents

from sigil_sdk import Client
from sigil_sdk_strands import with_sigil_strands_hooks

client = Client()
with_sigil_strands_hooks(agent, client=client, provider_resolver="auto")

Conversation Mapping

Conversation ID precedence:

conversation_id / session_id / group_id from Strands invocation_state
thread_id from Strands invocation_state
deterministic fallback sigil:framework:strands:<run_id>

Pass a stable value per user conversation:

agent("Remember my timezone is UTC+1.", invocation_state={"conversation_id": "customer-42"})
agent("What timezone did I give you?", invocation_state={"conversation_id": "customer-42"})

Metadata and Lineage

Required framework tags:

sigil.framework.name=strands
sigil.framework.source=hooks
sigil.framework.language=python

Metadata includes:

required: sigil.framework.run_type
optional: sigil.framework.run_id, sigil.framework.thread_id, sigil.framework.parent_run_id, sigil.framework.component_name, sigil.framework.event_id

Provider Resolver

Resolver order: explicit provider option -> Strands model config metadata -> model prefix inference -> custom.

For Bedrock model IDs that do not infer cleanly, pass provider="anthropic" or another provider value when creating the hook provider.

Troubleshooting

If conversations are fragmented, pass stable conversation_id or session_id in invocation_state.
If provider is inferred as custom, set provider="openai" / provider="anthropic" / provider="gemini" on hook creation.
Always call client.shutdown() during teardown.

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