Files
westey bad05a2bdc Python: Harness console for python (#6312)
* Add initial harness console for python

* Add textual to project

* Add planning and approval flows with list selector

* Address PR comments

* Fix list selection bug

* Fix PR #6312 round 2 review comments

- Escape untrusted agent text with rich.markup.escape() in observers
  (text_output, planning_output, reasoning_display) to prevent markup injection
- Remove non-functional 'Always approve' choices from tool_approval.py
  (framework lacks CreateAlwaysApproveToolResponse support)
- Remove textual from root pyproject.toml dev deps (sample-specific)
- Add PEP 723 inline script metadata to harness_research.py
- Narrow except Exception to except NoMatches in list_selection.py

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix build error

* Fix build errors

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-09 05:48:35 +00:00

60 lines
1.4 KiB
Python

# Copyright (c) Microsoft. All rights reserved.
"""Text output observer for streaming agent text."""
from __future__ import annotations
from typing import TYPE_CHECKING, Any
from rich.markup import escape
from .base import ConsoleObserver
if TYPE_CHECKING:
from agent_framework import Agent
from ..state_driver import IUXStateDriver
class TextOutputObserver(ConsoleObserver):
"""Displays streaming text output from the agent.
Writes text chunks incrementally to the UX state driver as they arrive,
allowing real-time display during streaming.
"""
async def on_text(
self,
ux: IUXStateDriver,
text: str,
agent: Agent,
session: Any,
) -> None:
"""Write each text chunk directly to the UX driver.
Args:
ux: The UX state driver for UI updates.
text: The text chunk to display.
agent: The AI agent.
session: The agent session.
"""
ux.write_text(escape(text))
async def on_stream_complete(
self,
ux: IUXStateDriver,
agent: Agent,
session: Any,
) -> list | None:
"""No-op on stream complete (state managed by UX driver).
Args:
ux: The UX state driver for UI updates.
agent: The AI agent.
session: The agent session.
Returns:
None (no follow-up actions).
"""
return None