fix: Add dynamic tool mode descriptions for agent integration#10743
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Important Review skippedAuto incremental reviews are disabled on this repository. Please check the settings in the CodeRabbit UI or the You can disable this status message by setting the WalkthroughThe PR enhances FileComponent to support tool mode by introducing dynamic tool descriptions that reflect uploaded files and adding a _get_tools() method to expose file reading as a callable tool, alongside comprehensive test coverage for edge cases. Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant FileComponent
participant ToolRegistry
participant StructuredTool
User->>FileComponent: Initialize with files in tool mode
FileComponent->>FileComponent: get_tool_description()
FileComponent-->>User: Dynamic description with file names
User->>FileComponent: Request tools via _get_tools()
FileComponent->>StructuredTool: Create load_files_message tool
Note over StructuredTool: Empty args schema<br/>Display name & description metadata
StructuredTool->>FileComponent: Tool instance
FileComponent-->>ToolRegistry: Return list with file reading tool
User->>StructuredTool: Execute tool
StructuredTool->>FileComponent: load_files_message()
FileComponent-->>StructuredTool: File content
StructuredTool-->>User: Result
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes
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## main #10743 +/- ##
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+ Coverage 32.43% 32.45% +0.02%
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Actionable comments posted: 3
🧹 Nitpick comments (1)
src/lfx/src/lfx/components/files_and_knowledge/file.py (1)
234-237: Remove unnecessarypassstatement.The
passstatement in the empty Pydantic model is unnecessary in Python 3 and triggers PIE790.Apply this diff:
# Empty schema - no parameters needed class EmptySchema(BaseModel): """No parameters required - uses pre-uploaded files.""" - - pass
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📒 Files selected for processing (2)
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py(2 hunks)src/lfx/src/lfx/components/files_and_knowledge/file.py(3 hunks)
🧰 Additional context used
📓 Path-based instructions (5)
src/backend/**/*.py
📄 CodeRabbit inference engine (.cursor/rules/backend_development.mdc)
src/backend/**/*.py: Use FastAPI async patterns withawaitfor async operations in component execution methods
Useasyncio.create_task()for background tasks and implement proper cleanup with try/except forasyncio.CancelledError
Usequeue.put_nowait()for non-blocking queue operations andasyncio.wait_for()with timeouts for controlled get operations
Files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
src/backend/**/*component*.py
📄 CodeRabbit inference engine (.cursor/rules/icons.mdc)
In Python component classes, set the
iconattribute to a string matching the desired icon name (e.g.,icon = "AstraDB"). The string must match the frontend icon mapping exactly (case-sensitive).
Files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
src/backend/tests/**/*.py
📄 CodeRabbit inference engine (.cursor/rules/testing.mdc)
src/backend/tests/**/*.py: Place backend unit tests insrc/backend/tests/directory, component tests insrc/backend/tests/unit/components/organized by component subdirectory, and integration tests accessible viamake integration_tests
Use same filename as component with appropriate test prefix/suffix (e.g.,my_component.py→test_my_component.py)
Use theclientfixture (FastAPI Test Client) defined insrc/backend/tests/conftest.pyfor API tests; it provides an asynchttpx.AsyncClientwith automatic in-memory SQLite database and mocked environment variables. Skip client creation by marking test with@pytest.mark.noclient
Inherit from the correctComponentTestBasefamily class located insrc/backend/tests/base.pybased on API access needs:ComponentTestBase(no API),ComponentTestBaseWithClient(needs API), orComponentTestBaseWithoutClient(pure logic). Provide three required fixtures:component_class,default_kwargs, andfile_names_mapping
Create comprehensive unit tests for all new backend components. If unit tests are incomplete, create a corresponding Markdown file documenting manual testing steps and expected outcomes
Test both sync and async code paths, mock external dependencies appropriately, test error handling and edge cases, validate input/output behavior, and test component initialization and configuration
Use@pytest.mark.asynciodecorator for async component tests and ensure async methods are properly awaited
Test background tasks usingasyncio.create_task()and verify completion withasyncio.wait_for()with appropriate timeout constraints
Test queue operations using non-blockingqueue.put_nowait()andasyncio.wait_for(queue.get(), timeout=...)to verify queue processing without blocking
Use@pytest.mark.no_blockbustermarker to skip the blockbuster plugin in specific tests
For database tests that may fail in batch runs, run them sequentially usinguv run pytest src/backend/tests/unit/test_database.pyr...
Files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
**/{test_*.py,*.test.ts,*.test.tsx}
📄 CodeRabbit inference engine (coderabbit-custom-pre-merge-checks-unique-id-file-non-traceable-F7F2B60C-1728-4C9A-8889-4F2235E186CA.txt)
Check that test files follow the project's naming conventions (test_*.py for backend, *.test.ts for frontend)
Files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
**/test_*.py
📄 CodeRabbit inference engine (coderabbit-custom-pre-merge-checks-unique-id-file-non-traceable-F7F2B60C-1728-4C9A-8889-4F2235E186CA.txt)
**/test_*.py: Backend tests should follow pytest structure with proper test_*.py naming
For async functions, ensure proper async testing patterns are used with pytest for backend
Files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
🧠 Learnings (12)
📚 Learning: 2025-11-24T19:47:28.997Z
Learnt from: CR
Repo: langflow-ai/langflow PR: 0
File: .cursor/rules/testing.mdc:0-0
Timestamp: 2025-11-24T19:47:28.997Z
Learning: Applies to src/backend/tests/**/*.py : Test component versioning and backward compatibility using `file_names_mapping` fixture with `VersionComponentMapping` objects mapping component files across Langflow versions
Applied to files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
📚 Learning: 2025-11-24T19:47:28.997Z
Learnt from: CR
Repo: langflow-ai/langflow PR: 0
File: .cursor/rules/testing.mdc:0-0
Timestamp: 2025-11-24T19:47:28.997Z
Learning: Applies to src/backend/tests/**/*.py : Use same filename as component with appropriate test prefix/suffix (e.g., `my_component.py` → `test_my_component.py`)
Applied to files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
📚 Learning: 2025-11-24T19:47:28.997Z
Learnt from: CR
Repo: langflow-ai/langflow PR: 0
File: .cursor/rules/testing.mdc:0-0
Timestamp: 2025-11-24T19:47:28.997Z
Learning: Applies to src/backend/tests/**/*.py : Inherit from the correct `ComponentTestBase` family class located in `src/backend/tests/base.py` based on API access needs: `ComponentTestBase` (no API), `ComponentTestBaseWithClient` (needs API), or `ComponentTestBaseWithoutClient` (pure logic). Provide three required fixtures: `component_class`, `default_kwargs`, and `file_names_mapping`
Applied to files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
📚 Learning: 2025-11-24T19:47:28.997Z
Learnt from: CR
Repo: langflow-ai/langflow PR: 0
File: .cursor/rules/testing.mdc:0-0
Timestamp: 2025-11-24T19:47:28.997Z
Learning: Applies to src/backend/tests/**/*.py : Create comprehensive unit tests for all new backend components. If unit tests are incomplete, create a corresponding Markdown file documenting manual testing steps and expected outcomes
Applied to files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
📚 Learning: 2025-11-24T19:47:28.997Z
Learnt from: CR
Repo: langflow-ai/langflow PR: 0
File: .cursor/rules/testing.mdc:0-0
Timestamp: 2025-11-24T19:47:28.997Z
Learning: Applies to src/backend/tests/**/*.py : Use `aiofiles` and `anyio.Path` for async file operations in tests; create temporary test files using `tmp_path` fixture and verify file existence and content
Applied to files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
📚 Learning: 2025-11-24T19:47:28.997Z
Learnt from: CR
Repo: langflow-ai/langflow PR: 0
File: .cursor/rules/testing.mdc:0-0
Timestamp: 2025-11-24T19:47:28.997Z
Learning: Applies to src/backend/tests/**/*.py : Test both sync and async code paths, mock external dependencies appropriately, test error handling and edge cases, validate input/output behavior, and test component initialization and configuration
Applied to files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
📚 Learning: 2025-11-24T19:47:28.997Z
Learnt from: CR
Repo: langflow-ai/langflow PR: 0
File: .cursor/rules/testing.mdc:0-0
Timestamp: 2025-11-24T19:47:28.997Z
Learning: When adding a new component test, inherit from the correct `ComponentTestBase` class and provide the three required fixtures (`component_class`, `default_kwargs`, `file_names_mapping`) to greatly reduce boilerplate and enforce version compatibility
Applied to files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
📚 Learning: 2025-11-24T19:46:09.104Z
Learnt from: CR
Repo: langflow-ai/langflow PR: 0
File: .cursor/rules/backend_development.mdc:0-0
Timestamp: 2025-11-24T19:46:09.104Z
Learning: Applies to tests/unit/components/**/*.py : Provide `file_names_mapping` for backward compatibility in component version testing
Applied to files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
📚 Learning: 2025-11-24T19:47:28.997Z
Learnt from: CR
Repo: langflow-ai/langflow PR: 0
File: .cursor/rules/testing.mdc:0-0
Timestamp: 2025-11-24T19:47:28.997Z
Learning: Applies to src/backend/tests/**/*.py : Test component build config updates by calling `to_frontend_node()` to get the node template, then calling `update_build_config()` to apply configuration changes
Applied to files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
📚 Learning: 2025-11-24T19:47:28.997Z
Learnt from: CR
Repo: langflow-ai/langflow PR: 0
File: .cursor/rules/testing.mdc:0-0
Timestamp: 2025-11-24T19:47:28.997Z
Learning: Applies to src/backend/tests/**/*.py : Use `pytest.mark.api_key_required` and `pytest.mark.no_blockbuster` markers for components that need external APIs; use `MockLanguageModel` from `tests.unit.mock_language_model` for testing without external API keys
Applied to files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
📚 Learning: 2025-11-24T19:47:28.997Z
Learnt from: CR
Repo: langflow-ai/langflow PR: 0
File: .cursor/rules/testing.mdc:0-0
Timestamp: 2025-11-24T19:47:28.997Z
Learning: Applies to src/backend/tests/**/*.py : Use predefined JSON flows and utility functions from `tests.unit.build_utils` (create_flow, build_flow, get_build_events, consume_and_assert_stream) for flow execution testing
Applied to files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
📚 Learning: 2025-08-05T22:51:27.961Z
Learnt from: edwinjosechittilappilly
Repo: langflow-ai/langflow PR: 0
File: :0-0
Timestamp: 2025-08-05T22:51:27.961Z
Learning: The TestComposioComponentAuth test in src/backend/tests/unit/components/bundles/composio/test_base_composio.py demonstrates proper integration testing patterns for external API components, including real API calls with mocking for OAuth completion, comprehensive resource cleanup, and proper environment variable handling with pytest.skip() fallbacks.
Applied to files:
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
🧬 Code graph analysis (2)
src/lfx/src/lfx/components/files_and_knowledge/file.py (1)
src/lfx/src/lfx/base/data/base_file.py (1)
load_files_message(303-336)
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py (1)
src/lfx/src/lfx/components/files_and_knowledge/file.py (3)
description(220-222)get_tool_description(190-217)_get_tools(224-266)
🪛 GitHub Actions: Ruff Style Check
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
[error] 1-1: Ruff check failed: Import block is un-sorted or un-formatted. I001
🪛 GitHub Check: Ruff Style Check (3.13)
src/lfx/src/lfx/components/files_and_knowledge/file.py
[failure] 248-248: Ruff (BLE001)
src/lfx/src/lfx/components/files_and_knowledge/file.py:248:20: BLE001 Do not catch blind exception: Exception
[failure] 237-237: Ruff (PIE790)
src/lfx/src/lfx/components/files_and_knowledge/file.py:237:13: PIE790 Unnecessary pass statement
[failure] 215-215: Ruff (E501)
src/lfx/src/lfx/components/files_and_knowledge/file.py:215:121: E501 Line too long (121 > 120)
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (15)
- GitHub Check: Lint Backend / Run Mypy (3.12)
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- GitHub Check: Lint Backend / Run Mypy (3.13)
- GitHub Check: Lint Backend / Run Mypy (3.10)
- GitHub Check: Test Docker Images / Test docker images
- GitHub Check: Run Backend Tests / Unit Tests - Python 3.10 - Group 5
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- GitHub Check: Run Backend Tests / Unit Tests - Python 3.10 - Group 1
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🔇 Additional comments (6)
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py (2)
430-502: LGTM - Excellent async test coverage.The async tests properly use
@pytest.mark.asynciodecorator, correctly await async operations, and thoroughly test the_get_tools()functionality including:
- Tool creation without parameters
- Dynamic description with filenames
- Tool metadata validation
- Actual tool execution with file reading
The use of
tmp_pathfixture for file operations follows the project guidelines.
506-535: Strong error handling test coverage.These tests properly validate that the tool handles error scenarios gracefully (missing files, empty file lists) without crashing, which is essential for reliability in agent integrations.
src/lfx/src/lfx/components/files_and_knowledge/file.py (4)
39-44: LGTM - Well-designed dynamic description approach.Converting the description to a dynamic property that includes uploaded file names provides valuable context for agent integrations. The
add_tool_output = Trueflag correctly enables tool mode toggling without requiring explicittool_modeinputs.
219-222: LGTM - Clean property implementation.The description property correctly delegates to
get_tool_description()to provide dynamic descriptions based on the current state of uploaded files.
239-249: Exception handling is appropriate for tool error recovery.While the static analyzer flags the broad
Exceptioncatch (BLE001), this pattern is correct for a tool that must return a string error message rather than crash. The tool is also configured withhandle_tool_error=Truefor additional resilience. This defensive approach is essential for agent reliability.Note: The async function calling the synchronous
load_files_message()method is acceptable here, as the method performs file I/O that is expected to complete quickly in typical use cases.
253-266: LGTM - Robust tool implementation with excellent metadata.The tool creation includes:
- Proper use of
StructuredToolwith empty schema (no parameters needed)- Dynamic description from
get_tool_description()- Async coroutine for tool execution
- Comprehensive metadata for UI display
- Error handling configured with
handle_tool_error=TrueThis implementation aligns perfectly with the PR objectives to enable agent integration using pre-uploaded files without requiring file paths as parameters.
| import json | ||
| from unittest.mock import MagicMock, patch | ||
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| import pytest | ||
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| from langflow.io import Output | ||
| from lfx.components.files_and_knowledge.file import FileComponent | ||
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There was a problem hiding this comment.
Fix import ordering per Ruff standards.
The import block needs to be properly sorted to resolve the Ruff I001 error flagged by the pipeline.
Based on standard Python import conventions and Ruff's expectations, ensure imports are grouped and sorted as follows:
- Standard library imports (sorted alphabetically)
- Third-party imports (sorted alphabetically)
- First-party imports (sorted alphabetically)
Apply this diff to fix the import order:
import json
from unittest.mock import MagicMock, patch
import pytest
-
from langflow.io import Output
from lfx.components.files_and_knowledge.file import FileComponent🧰 Tools
🪛 GitHub Actions: Ruff Style Check
[error] 1-1: Ruff check failed: Import block is un-sorted or un-formatted. I001
🪛 GitHub Check: Ruff Style Check (3.13)
[failure] 1-7: Ruff (I001)
src/backend/tests/unit/components/files_and_knowledge/test_file_component.py:1:1: I001 Import block is un-sorted or un-formatted
🤖 Prompt for AI Agents
In src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
lines 1-8, the import block is not ordered per Ruff/I001; reorder imports into
three groups: (1) standard library imports sorted alphabetically (e.g., json),
(2) third-party imports sorted alphabetically (e.g., pytest), and (3)
first-party/project imports sorted alphabetically (e.g., from langflow.io import
Output and from lfx.components.files_and_knowledge.file import FileComponent),
each group separated by a single blank line.
| component = FileComponent() | ||
| component._attributes["path"] = None | ||
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| description = component.get_tool_description() | ||
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| assert description == "Loads and returns the content from uploaded files." | ||
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| def test_get_tool_description_with_single_file(self): | ||
| """Test tool description includes single file name.""" | ||
| component = FileComponent() | ||
| component._attributes["path"] = ["flow123/document.pdf"] | ||
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| description = component.get_tool_description() | ||
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| assert "document.pdf" in description | ||
| assert "Available files:" in description | ||
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| def test_get_tool_description_with_multiple_files(self): | ||
| """Test tool description includes all file names.""" | ||
| component = FileComponent() | ||
| component._attributes["path"] = [ | ||
| "flow123/report.pdf", | ||
| "flow123/data.csv", | ||
| "flow123/notes.txt", | ||
| ] | ||
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| description = component.get_tool_description() | ||
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| assert "report.pdf" in description | ||
| assert "data.csv" in description | ||
| assert "notes.txt" in description | ||
| assert "Available files:" in description | ||
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| def test_get_tool_description_with_empty_list(self): | ||
| """Test tool description with empty file list.""" | ||
| component = FileComponent() | ||
| component._attributes["path"] = [] | ||
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| description = component.get_tool_description() | ||
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| assert description == "Loads and returns the content from uploaded files." | ||
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| def test_description_property_returns_dynamic_description(self): | ||
| """Test that description property returns dynamic description.""" | ||
| component = FileComponent() | ||
| component._attributes["path"] = ["flow123/test.pdf"] | ||
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| # Access via property | ||
| description = component.description | ||
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| assert "test.pdf" in description | ||
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| # ==================== Edge Cases: File Names ==================== | ||
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| def test_get_tool_description_filename_with_spaces(self): | ||
| """Test handling of filenames with spaces.""" | ||
| component = FileComponent() | ||
| component._attributes["path"] = ["flow123/my document with spaces.pdf"] | ||
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| description = component.get_tool_description() | ||
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| assert "my document with spaces.pdf" in description | ||
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| def test_get_tool_description_filename_with_comma(self): | ||
| """Test handling of filenames with commas.""" | ||
| component = FileComponent() | ||
| component._attributes["path"] = ["flow123/file,with,commas.txt"] | ||
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| description = component.get_tool_description() | ||
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| assert "file,with,commas.txt" in description | ||
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| def test_get_tool_description_filename_with_multiple_dots(self): | ||
| """Test handling of filenames with multiple dots.""" | ||
| component = FileComponent() | ||
| component._attributes["path"] = ["flow123/file.name.with.dots.pdf"] | ||
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| description = component.get_tool_description() | ||
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| assert "file.name.with.dots.pdf" in description | ||
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| def test_get_tool_description_filename_with_special_characters(self): | ||
| """Test handling of filenames with special characters.""" | ||
| component = FileComponent() | ||
| component._attributes["path"] = [ | ||
| "flow123/file-with-dashes.pdf", | ||
| "flow123/file_with_underscores.txt", | ||
| "flow123/file (with) parentheses.doc", | ||
| ] | ||
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| description = component.get_tool_description() | ||
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| assert "file-with-dashes.pdf" in description | ||
| assert "file_with_underscores.txt" in description | ||
| assert "file (with) parentheses.doc" in description | ||
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| def test_get_tool_description_filename_with_unicode(self): | ||
| """Test handling of filenames with unicode characters.""" | ||
| component = FileComponent() | ||
| component._attributes["path"] = [ | ||
| "flow123/文档.pdf", | ||
| "flow123/документ.txt", | ||
| "flow123/arquivo_português.pdf", | ||
| ] | ||
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| description = component.get_tool_description() | ||
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| assert "文档.pdf" in description | ||
| assert "документ.txt" in description | ||
| assert "arquivo_português.pdf" in description | ||
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| def test_get_tool_description_filename_with_numbers(self): | ||
| """Test handling of filenames with numbers.""" | ||
| component = FileComponent() | ||
| component._attributes["path"] = [ | ||
| "flow123/report_2024_01_15.pdf", | ||
| "flow123/v1.2.3_release_notes.txt", | ||
| ] | ||
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| description = component.get_tool_description() | ||
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| assert "report_2024_01_15.pdf" in description | ||
| assert "v1.2.3_release_notes.txt" in description | ||
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| def test_get_tool_description_very_long_filename(self): | ||
| """Test handling of very long filenames.""" | ||
| component = FileComponent() | ||
| long_name = "a" * 200 + ".pdf" | ||
| component._attributes["path"] = [f"flow123/{long_name}"] | ||
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| description = component.get_tool_description() | ||
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| assert long_name in description | ||
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| def test_get_tool_description_filters_empty_paths(self): | ||
| """Test that empty paths are filtered out.""" | ||
| component = FileComponent() | ||
| component._attributes["path"] = ["flow123/valid.pdf", "", None, "flow123/another.txt"] | ||
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| description = component.get_tool_description() | ||
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| assert "valid.pdf" in description | ||
| assert "another.txt" in description | ||
| # Should not crash or include empty entries | ||
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| # ==================== _get_tools() Tests ==================== |
There was a problem hiding this comment.
🛠️ Refactor suggestion | 🟠 Major
Avoid direct manipulation of private _attributes dictionary.
Throughout this test class, file paths are set by directly accessing component._attributes["path"]. This bypasses the public API and creates fragile tests that may break if the internal implementation changes.
Use the public path attribute instead:
def test_get_tool_description_without_files(self):
"""Test tool description when no files are uploaded."""
component = FileComponent()
- component._attributes["path"] = None
+ component.path = None
description = component.get_tool_description()Apply this pattern consistently to all tests in this class that currently set component._attributes["path"] (lines 284, 293, 303, 319, 328, 340, 349, 358, 367, 382, 397, 411, 420, 434, 451, 463, 476, 493, 510, 525).
Committable suggestion skipped: line range outside the PR's diff.
🤖 Prompt for AI Agents
In src/backend/tests/unit/components/files_and_knowledge/test_file_component.py
around lines 281 to 426 (and the other line locations called out in the review:
284, 293, 303, 319, 328, 340, 349, 358, 367, 382, 397, 411, 420, 434, 451, 463,
476, 493, 510, 525), replace all direct assignments to the private dictionary
component._attributes["path"] with the public API by setting component.path
(e.g., component.path = None or component.path = ["flow123/..."]). Ensure you
apply this consistently across every test in the file, and if the path property
expects a specific type, supply that type (None, empty list, or list of paths)
so tests continue to exercise the same behavior without touching internals.
|
|
||
| if file_names: | ||
| files_str = ", ".join(file_names) | ||
| return f"{base_description} Available files: {files_str}. Call this tool to read the content of these files." |
There was a problem hiding this comment.
Break long line to fix E501 style violation.
Line 215 exceeds the 120-character limit.
Apply this diff:
if file_names:
files_str = ", ".join(file_names)
- return f"{base_description} Available files: {files_str}. Call this tool to read the content of these files."
+ return (
+ f"{base_description} Available files: {files_str}. "
+ f"Call this tool to read the content of these files."
+ )📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| return f"{base_description} Available files: {files_str}. Call this tool to read the content of these files." | |
| if file_names: | |
| files_str = ", ".join(file_names) | |
| return ( | |
| f"{base_description} Available files: {files_str}. " | |
| f"Call this tool to read the content of these files." | |
| ) |
🧰 Tools
🪛 GitHub Check: Ruff Style Check (3.13)
[failure] 215-215: Ruff (E501)
src/lfx/src/lfx/components/files_and_knowledge/file.py:215:121: E501 Line too long (121 > 120)
🤖 Prompt for AI Agents
In src/lfx/src/lfx/components/files_and_knowledge/file.py around line 215, the
return statement exceeds the 120-character limit; break the long f-string into
multiple shorter string literals by wrapping the return expression in
parentheses and splitting the f-string across two lines (or concatenate two
f-strings) so the resulting line lengths are under 120 characters while
preserving the same output: first part with base_description, second part with "
Available files: {files_str}. Call this tool to read the content of these
files.".
github-merge-queue
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removed this pull request from the merge queue due to failed status checks
2 participants
This pull request adds comprehensive tests and refactors the
FileComponentto improve its support for "tool mode," making it easier for agents to interact with uploaded files. The main changes include dynamic descriptions that reflect available files, robust handling of edge cases for file names, and a redesigned tool interface that does not require parameters. These updates enhance reliability and usability when integrating file reading capabilities into agent workflows.Tool mode and dynamic description improvements:
get_tool_description()method and property toFileComponent, which generates descriptions including the names of uploaded files, supporting better agent understanding and context.descriptionattribute to be a dynamic property, and addedadd_tool_output = Trueto enable tool mode toggling without requiring tool_mode inputs.Tool interface and error handling:
_get_tools()method to create a tool that reads files directly from those uploaded via the UI, without requiring parameters; includes robust error handling for missing or invalid files.Testing enhancements:
TestFileComponentToolModetest class with extensive unit and integration tests for tool mode, dynamic descriptions, edge cases in file names (spaces, special characters, unicode, long names), error handling, and tool execution.pytestimport to support asynchronous and advanced testing features.UI and input/output configuration:
tool_mode=Trueis set for relevant fields and outputs, supporting the toolset toggle and correct UI behavior.Summary by CodeRabbit
New Features
Tests
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