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Using Prompt Builder

PromptBuilder (Jinja2)​

Render prompts with Jinja2 using AgentContext and k-limited history.

from l6e_forge.prompt import PromptBuilder

builder = PromptBuilder()
rendered = await builder.render(
    """
You are {{ context.agent_id or 'an assistant' }}.

Recent conversation (last {{ k }} messages):
{% for m in history_k(k) %}
- [{{ m.role }}] {{ m.content }}
{% endfor %}

User says: {{ user_input }}
Provide a helpful, concise answer.
""",
    context,
    extra_vars={"user_input": message.content, "k": 8},
    k_limit=8,
)

Load from file:

rendered = await builder.render_from_file(
  "chat.j2", context, extra_vars={"user_input": message.content, "k": 8},
  k_limit=8, agent_name="my-agent",
)

Template locations searched:

  • <workspace>/templates/
  • <workspace>/shared/prompts/
  • <workspace>/agents/<agent>/templates/