Deer Flow

Deer Flow Specialist

Overview

The Deer Flow specialist wraps the bytedance/deer-flow SuperAgent pattern into a composable OSS Agent Lab specialist. It chains three stages into a single pipeline:

1. Research fixture — formats numbered findings and caller-supplied or synthetic source labels.
2. Code stub — translates a specification into a TODO implementation and test skeleton.
3. Artifact envelope — packages the dictionaries with a hash-derived ID and format label.

Each stage is also independently callable as a tool, making the specialist useful for partial workflows (research-only, code-only, wrap-existing-content-in-artifact).

The present tools are offline contract stubs. Research findings are formatted fixtures, generated code is a NotImplementedError skeleton, and artifacts are in-memory dictionaries rather than files.

Prerequisites

• Use Python 3.11+ in a local OSS Agent Lab checkout and run pip install -e ..
• Do not treat source labels, confidence, code, or artifacts as externally generated evidence.
• Read the runtime contract for supported values and defaults.

Authentication

None. The current implementation is local and makes no external request. Do not provide API keys or tokens; a future network-backed implementation must document its own credential boundary.

Capabilities

• research: Generate findings, labels, a summary, and a fixture confidence score for a topic. Supports shallow, standard, and deep depth settings.
• code_generation: Generate an implementation stub, test skeleton, and explanation from a natural-language specification. Supports Python and other languages.
• creation: Package any content dict into an in-memory envelope with a stable ID and creation metadata.
• summarize: The research stage always produces a concise summary suitable for direct use or downstream prompting.

Tools

Tool Parameter Reference

research_topic

• topic: str — subject to research (required)
• depth: str — "shallow" | "standard" | "deep" (default: "standard")
• sources: list[str] | None — explicit source list; auto-selected when None

generate_code

• specification: str — natural-language description of the code to produce (required)
• language: str — target language, e.g. "python", "typescript" (default: "python")
• style: str — "clean" | "verbose" | "minimal" (default: "clean")

create_artifact

• content: dict[str, Any] — pipeline outputs to embed (required)
• artifact_type: str — "report" | "notebook" | "package" | "summary" (default: "report")
• format: str — "markdown" | "json" | "html" (default: "markdown")

Pipeline Flow

SpecialistRequest
       │
       ▼
  research_topic(topic, depth, sources)
       │
       ▼  (if code generation needed)
  generate_code(specification, language, style)
       │
       ▼
  create_artifact(content, artifact_type, format)
       │
       ▼
  SpecialistResponse(result={research, code?, artifact})

Code generation is triggered when:

• The intent action contains "code"
• The intent domain contains "code_generation"
• The request parameter generate_code is truthy (default: True)

Instructions

1. Provide a non-empty task and choose a supported depth, style, artifact type, and format.
2. Disable code generation explicitly when only the synthetic research shape is needed.
3. Run the local Python API or CLI and inspect the structured result.
4. Label every result as prototype output; never present it as live research or completed code.

Examples

Python API

from agents.specialists.deer_flow.agent import DeerFlowSpecialist
from oss_agent_lab.contracts import Intent, Query, SpecialistRequest

specialist = DeerFlowSpecialist()

request = SpecialistRequest(
    intent=Intent(
        action="research_and_build",
        domain="code_generation",
        confidence=0.95,
        parameters={"depth": "deep", "language": "python"},
    ),
    query=Query(user_input="async rate limiter with token bucket algorithm"),
    specialist_name="deer_flow",
)

response = await specialist.execute(request)
print(response.result["artifact"]["artifact_id"])
print(response.result["code"]["code"])

CLI

oss-lab run deer_flow "async rate limiter with token bucket algorithm"

Research-only (tool call)

from agents.specialists.deer_flow.tools import research_topic

findings = research_topic(
    topic="transformer attention mechanisms",
    depth="deep",
    sources=["arxiv", "github"],
)
print(findings["summary"])
print(f"Confidence: {findings['confidence']}")

Code generation standalone

from agents.specialists.deer_flow.tools import generate_code

result = generate_code(
    specification="LRU cache with O(1) get and put operations",
    language="python",
    style="clean",
)
print(result["code"])
print(result["tests"])

Output

The response includes synthetic research, optional code and tests stubs, and an artifact dictionary with a hash-derived ID and timestamp. It does not write the declared Markdown, JSON, or HTML format.

Error Handling

• Reject unsupported depth, style, artifact type, or format values.
• Reject an empty code specification or empty artifact content.
• Treat generated TODOs and NotImplementedError as deliberate stubs requiring implementation.

Resources

Wraps bytedance/deer-flow — a full-stack multi-agent research framework featuring deep research, report generation, and podcast/presentation creation pipelines built on top of LangGraph.

The local specialist only mirrors a response shape. See the runtime contract.